@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap");

/* Variables de color actualizadas según los screenshots */
:root {
  /* Colores principales */
  --color-primary: #1a73e8;
  --color-primary-dark: #1557b0;
  --color-primary-light: #e8f0fe;

  --color-success: #34a853;
  --color-success-light: #e6f4ea;

  --color-error: #ea4335;
  --color-error-light: #fce8e6;

  --color-warning: #fbbc04;

  /* Grises */
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-border: #dadce0;
  --color-border-light: #f1f3f4;

  --color-text-primary: #202124;
  --color-text-secondary: #5f6368;
  --color-text-tertiary: #9aa0a6;

  /* Espaciado */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 48px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(60, 64, 67, 0.12), 0 1px 2px rgba(60, 64, 67, 0.08);
  --shadow-md: 0 4px 6px rgba(60, 64, 67, 0.08), 0 2px 4px rgba(60, 64, 67, 0.06);
  --shadow-lg: 0 12px 24px rgba(60, 64, 67, 0.16), 0 6px 12px rgba(60, 64, 67, 0.12);

  /* Typography */
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Poppins", "Inter", sans-serif;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --header-height: 72px;
  --max-width-content: 1200px;
  --max-width-reading: 720px;
}

/* Reset y base completamente limpio */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-size: 15px;
  line-height: 1.5;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 {
  font-size: 32px;
}
h2 {
  font-size: 24px;
}
h3 {
  font-size: 18px;
}
h4 {
  font-size: 16px;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: all var(--transition-base);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

input,
textarea {
  font-family: inherit;
  font-size: 15px;
  outline: none;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-700);
}

/* Utilities */
.hidden {
  display: none !important;
}

.is-hidden {
  display: none !important;
}

/* Screens */
.screen {
  display: none;
  height: 100%;
  width: 100%;
  overflow-y: auto;
  background-color: var(--bg-secondary);
  animation: fadeIn var(--transition-slow);
}

.screen.active {
  display: flex;
  flex-direction: column;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ======================================
   LOGIN SCREEN - Diseño según screenshot
   ====================================== */

#loginScreen {
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  padding: var(--spacing-xl);
}

.login-container {
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-logo-icon {
  width: 96px;
  height: 96px;
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-2xl);
  color: var(--color-primary);
}

.login-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.login-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-3xl);
  line-height: 1.4;
}

.pin-display {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.pin-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: #e8eaed;
  border: 2px solid #dadce0;
  transition: all 0.2s;
}

.pin-dot.filled {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  max-width: 320px;
  margin: 0 auto var(--spacing-3xl);
}

.key {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: #f8f9fa;
  color: var(--color-text-primary);
  font-size: 28px;
  font-weight: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  justify-self: center;
}

.key:active {
  background-color: #e8eaed;
  transform: scale(0.95);
}

.key-icon {
  font-size: 20px;
  color: var(--color-text-secondary);
}

.error-message {
  color: var(--color-error);
  background-color: var(--color-error-light);
  font-size: 13px;
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-lg);
  min-height: 20px;
  font-weight: 500;
}

.error-message:empty {
  display: none;
}

.error-message::before {
  content: "⚠️";
}

.login-footer {
  margin-top: var(--spacing-2xl);
}

.login-footer p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.link-primary {
  color: var(--color-primary);
  font-weight: 500;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
}

.btn-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.btn-link:active {
  background-color: var(--color-border-light);
}

/* --- Login Screen --- */
#loginScreen {
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--bg-primary) 100%);
  padding: var(--spacing-xl);
}

.login-container {
  width: 100%;
  max-width: 420px;
  background: var(--surface-color);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
}

@media (max-width: 600px) {
  .login-container {
    border: none;
    padding: 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

/* New logo section */
.login-logo {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.logo-circle {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: white;
  box-shadow: var(--shadow-lg);
}

.logo-title {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.login-header h2 {
  font-size: 28px;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.login-header p {
  color: var(--text-secondary);
  font-size: 15px;
}

.pin-display {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.pin-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: #717171;
    border: #000000;
    transition: all var(--transition-base);
    position: relative;
}

.pin-dot.filled {
    background-color: #1a73e8;
    border-color: #120d0d;
    box-shadow: 0 0 0 4px #dbdbdb;
    transform: scale(1.1);
}

.pin-dot.filled::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: white;
  border-radius: 50%;
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  max-width: 300px;
  margin: 0 auto var(--spacing-xl);
}

.key {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  background-color: var(--grey-100);
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  justify-self: center;
  border: 2px solid transparent;
  -webkit-tap-highlight-color: transparent;
}

.key:hover {
  background-color: var(--grey-200);
  transform: scale(1.05);
}

.key:active {
  background-color: var(--grey-300);
  transform: scale(0.95);
}

.key.clear,
.key.delete {
  background-color: transparent;
  color: var(--text-secondary);
  font-size: 20px;
}

.key.clear:hover,
.key.delete:hover {
  background-color: var(--error-50);
  color: var(--error-600);
}

.error-message {
    color: var(--error-600);
    background-color: #f5caca;
    font-size: 13px;
    min-height: 20px;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    border: 1px solid var(--error-500);
}

.error-message:empty {
  display: none;
}

.error-message::before {
  content: "⚠️";
}

/* New auth divider */
.auth-divider {
  position: relative;
  text-align: center;
  margin: var(--spacing-2xl) 0 var(--spacing-xl);
}

.auth-divider::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--border-medium);
}

.auth-divider span {
  position: relative;
  background: var(--surface-color);
  padding: 0 var(--spacing-md);
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.auth-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.btn-auth-primary,
.btn-auth-secondary {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  transition: all var(--transition-base);
}

.btn-auth-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  color: white;
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-auth-primary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-auth-secondary {
  background: var(--surface-color);
  color: var(--primary-600);
  border: 2px solid var(--primary-200);
}

.btn-auth-secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
}

/* New help button */
.login-footer {
  margin-top: var(--spacing-2xl);
  text-align: center;
}

.btn-help {
  background: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
}

.btn-help:hover {
  background: var(--grey-100);
  color: var(--text-primary);
}

/* ======================================
   HOME SCREEN - Diseño según screenshot
   ====================================== */

.header {
  height: 64px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-avatar-container {
  position: relative;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5f9ea0, #4682b4);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
}

.online-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--color-success);
  border: 2px solid var(--color-surface);
  border-radius: 50%;
}

.user-info-header {
  display: flex;
  flex-direction: column;
}

.app-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.status-text {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.btn-header-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.btn-header-icon:active {
  background-color: var(--color-border-light);
}

.home-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-bg);
}

.greeting-section {
  margin-bottom: var(--spacing-2xl);
}

.greeting-title {
  font-size: 32px;
  font-weight: 400;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.greeting-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.card-header-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-title-group h3 {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.card-title-group svg {
  color: var(--color-primary);
}

.badge-secure {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--color-success-light);
  color: var(--color-success);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.card-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.mode-selector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.mode-card input {
  display: none;
}

.mode-card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

.mode-card input:checked + .mode-card-content {
  background: var(--color-primary);
  color: white;
}

.btn-primary-large {
  width: 100%;
  height: 56px;
  background: var(--color-primary);
  color: white;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.btn-primary-large:active {
  background: var(--color-primary-dark);
  transform: scale(0.98);
}

.call-code-display {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 2px dashed var(--color-border);
}

.code-box-fancy {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.code-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.code-display-spaced {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.code-display-spaced span {
  font-family: "Courier New", monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 2px;
}

.btn-copy-mini {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-expiry {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.btn-join-now {
  width: 100%;
  height: 48px;
  background: #e3f2fd;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
}

.btn-join-now:active {
  background: #bbdefb;
}

.divider-text {
  text-align: center;
  position: relative;
  margin: var(--spacing-2xl) 0;
}

.divider-text::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.divider-text span {
  position: relative;
  background: var(--color-bg);
  padding: 0 var(--spacing-lg);
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.section-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.input-group {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.input-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.input-group input {
  width: 100%;
  height: 52px;
  padding: 0 var(--spacing-lg) 0 52px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  background: var(--color-surface);
  transition: all 0.2s;
}

.input-group input:focus {
  border-color: var(--color-primary);
}

.btn-connect {
  width: 100%;
  height: 56px;
  background: var(--color-text-primary);
  color: white;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-connect:active {
  background: #000;
  transform: scale(0.98);
}

/* ======================================
   HOME SCREEN - Diseño según screenshot
   ====================================== */

.header {
  height: 64px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-avatar-container {
  position: relative;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #5f9ea0, #4682b4);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
}

.online-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--color-success);
  border: 2px solid var(--color-surface);
  border-radius: 50%;
}

.user-info-header {
  display: flex;
  flex-direction: column;
}

.app-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.status-text {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.btn-header-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.btn-header-icon:active {
  background-color: var(--color-border-light);
}

.home-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-bg);
}

.greeting-section {
  margin-bottom: var(--spacing-2xl);
}

.greeting-title {
  font-size: 32px;
  font-weight: 400;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.greeting-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.card-header-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-title-group h3 {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text-primary);
}

.card-title-group svg {
  color: var(--color-primary);
}

.badge-secure {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--color-success-light);
  color: var(--color-success);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.card-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.mode-selector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.mode-card input {
  display: none;
}

.mode-card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

.mode-card input:checked + .mode-card-content {
  background: var(--color-primary);
  color: white;
}

.btn-primary-large {
  width: 100%;
  height: 56px;
  background: var(--color-primary);
  color: white;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.btn-primary-large:active {
  background: var(--color-primary-dark);
  transform: scale(0.98);
}

.call-code-display {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 2px dashed var(--color-border);
}

.code-box-fancy {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.code-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.code-display-spaced {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.code-display-spaced span {
  font-family: "Courier New", monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 2px;
}

.btn-copy-mini {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-expiry {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.btn-join-now {
  width: 100%;
  height: 48px;
  background: #e3f2fd;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
}

.btn-join-now:active {
  background: #bbdefb;
}

.divider-text {
  text-align: center;
  position: relative;
  margin: var(--spacing-2xl) 0;
}

.divider-text::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.divider-text span {
  position: relative;
  background: var(--color-bg);
  padding: 0 var(--spacing-lg);
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.section-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.input-group {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.input-icon {
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.input-group input {
  width: 100%;
  height: 52px;
  padding: 0 var(--spacing-lg) 0 52px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  background: var(--color-surface);
  transition: all 0.2s;
}

.input-group input:focus {
  border-color: var(--color-primary);
}

.btn-connect {
  width: 100%;
  height: 56px;
  background: var(--color-text-primary);
  color: white;
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-connect:active {
  background: #000;
  transform: scale(0.98);
}

/* ======================================
   FILES SECTION
   ====================================== */

.files-section {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  position: relative;
  margin-bottom: 80px;
}

.files-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.files-header h3 {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.btn-icon-small {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.btn-icon-small:active {
  background: var(--color-border-light);
}

.files-title {
  font-size: 28px;
  font-weight: 400;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
}

.file-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  overflow-x: auto;
}

.file-tab {
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--radius-full);
  background: var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

.file-tab.active {
  background: var(--color-text-primary);
  color: white;
}

.file-input-hidden {
  display: none;
}

.upload-progress {
  margin-bottom: var(--spacing-xl);
}

.upload-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  background: var(--color-border-light);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
}

.upload-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.upload-info {
  flex: 1;
  min-width: 0;
}

.upload-filename {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.upload-progress-bar {
  height: 4px;
  background: #dadce0;
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.3s;
}

.upload-status {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.file-list-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.file-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--color-border-light);
}

.file-icon {
  width: 48px;
  height: 48px;
  background: #fbbc04;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  flex-shrink: 0;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.fab {
  position: fixed;
  bottom: 80px;
  right: var(--spacing-lg);
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.4);
  z-index: 100;
}

.fab:active {
  transform: scale(0.95);
}

/* --- Home Screen --- */
#homeScreen {
  background-color: var(--bg-secondary);
}

.header {
    background-color: #f1f5fa;
    height: var(--header-height);
    display: flex;
    align-items: center;
    /* justify-content: center; */
    border-bottom: 1px solid #aaaaaa;
    flex-shrink: 0;
    box-shadow: var(--shadow-xs);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
  width: 100%;
  max-width: var(--max-width-content);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a73e8, #314c95);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    box-shadow: var(--shadow-sm);
}



#userName {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.btn-icon-header {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-icon-header:hover {
  background: var(--error-50);
  color: var(--error-600);
}

.home-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  width: 100%;
}

@media (min-width: 768px) {
  .home-container {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

.card {
  background: var(--surface-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.card-primary {
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--surface-color) 100%);
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.phone-icon {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  color: white;
}

.files-icon {
  background: linear-gradient(135deg, var(--warning-500), var(--warning-600));
  color: white;
}

.card-header h2 {
  font-size: 22px;
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
}

/* Call Actions */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xs);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.mode-option {
  cursor: pointer;
  transition: all var(--transition-base);
}

.mode-option input {
  display: none;
}

.mode-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition-base);
}

.mode-option:hover .mode-content {
  background: var(--surface-color);
  color: var(--text-primary);
}

.mode-option input:checked + .mode-content {
  background: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-sm);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-success {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: #2d5093;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-500), var(--success-700));
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-success:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-secondary {
    background: #ffffff;
    color: var(--primary-600);
    border: 1px solid #202124;
}
.btn-secondary:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
}

.btn-secondary-full {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  background: var(--surface-color);
  color: var(--primary-600);
  border: 2px solid var(--border-medium);
  transition: all var(--transition-base);
}

.btn-secondary-full:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
}

.btn-text {
  background: none;
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-md);
  width: 100%;
  border-radius: var(--radius-sm);
}

.btn-text:hover {
  background: var(--grey-100);
  color: var(--text-primary);
}

.join-call {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 2px dashed var(--border-medium);
}

.join-call h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.input-with-icon {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.input-with-icon svg {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.input-with-icon input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 48px;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  background: var(--surface-color);
  color: var(--text-primary);
  transition: all var(--transition-base);
}

.input-with-icon input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px var(--primary-50);
}

.input-with-icon input::placeholder {
  font-weight: 400;
  letter-spacing: normal;
}

/* Code Display */
.call-code-display {
  background: linear-gradient(135deg, var(--primary-50), var(--success-50));
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-xl);
  border: 2px solid var(--primary-200);
}

.code-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

.code-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--surface-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.code-value {
  font-family: "SF Mono", "Monaco", "Inconsolata", "Roboto Mono", monospace;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--primary-700);
}

.btn-copy-code {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  position: relative;
}

.btn-copy-code:hover {
  background: var(--primary-100);
  color: var(--primary-700);
  transform: scale(1.05);
}

.btn-copy-code .check-icon {
  position: absolute;
}

.btn-copy-code:hover .copy-icon {
  display: none;
}

.btn-copy-code:hover .check-icon {
  display: block;
}

/* File Library */
.file-upload {
  margin-bottom: var(--spacing-xl);
}

.file-input-hidden {
  display: none;
}

.btn-upload {
  width: 100%;
  padding: var(--spacing-lg);
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  transition: all var(--transition-base);
}

.btn-upload:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  color: var(--primary-600);
}

/* Upload Progress */
.upload-progress {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.progress-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.progress-percentage {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-600);
}

.progress-bar {
  height: 8px;
  background-color: var(--grey-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--success-500));
  width: 0%;
  transition: width var(--transition-slow);
  border-radius: var(--radius-full);
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: 400px;
  overflow-y: auto;
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: #f1f3f4;
    border: 2px solid #00000030;
    transition: all var(--transition-base);
}

.file-item:hover {
  background: var(--surface-color);
  border-color: var(--primary-200);
  box-shadow: var(--shadow-sm);
}

.file-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--warning-500), var(--warning-600));
  color: white;
  border-radius: var(--radius-md);
  font-size: 20px;
  flex-shrink: 0;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.file-meta {
  font-size: 13px;
  color: var(--text-tertiary);
}

.file-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.qr-actions {
  margin-top: 16px;
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
}

.btn-sm {
  font-size: 12px;
  padding: 6px 12px;
  height: auto;
}

/* New empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  color: var(--text-secondary);
}

.empty-state svg {
  color: var(--grey-300);
  margin-bottom: var(--spacing-lg);
}

.empty-state p {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.empty-state span {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* --- Call Screen --- */
#callScreen {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.call-header {
  height: 64px;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

.call-header .btn-icon {
  color: white;
}
.call-header .btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.call-header .call-status {
  font-size: 16px;
  font-weight: 500;
}

.btn-icon-call {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.15);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-icon-call:hover {
  background: rgba(255, 255, 255, 0.2);
}

.call-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.call-status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success-500);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.call-status-pill {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.btn-present-header {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-present-header:hover {
  background: rgba(255, 255, 255, 0.2);
}

.call-container {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  padding-bottom: 80px; /* Space for controls */
}

/* Enhanced shared file alert */
.shared-file-alert {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-color);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-xl);
  z-index: 150;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  animation: slideDown var(--transition-slow);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.alert-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--text-primary);
  font-weight: 600;
}

.alert-content svg {
  color: var(--primary-600);
}

.btn-alert-action {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-500);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 13px;
}

.btn-alert-action:hover {
  background: var(--primary-600);
}

/* Voice Call View */
.voice-call-view {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
}

.voice-call-content {
  position: relative;
}

.voice-call-avatar-wrapper {
  position: relative;
  margin: 0 auto var(--spacing-2xl);
}

.voice-call-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  font-weight: 700;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
}

.voice-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--primary-500);
  opacity: 0.3;
  animation: pulseRing 2s infinite;
}

@keyframes pulseRing {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

.voice-call-name {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.voice-call-status {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-lg);
}

.voice-call-timer {
  font-family: "SF Mono", monospace;
  font-size: 18px;
  background: rgba(255, 255, 255, 0.15);
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--radius-full);
  display: inline-block;
  backdrop-filter: blur(8px);
}

/* Controls Bar */
.call-controls {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
}

.controls-container {
  background: rgba(60, 64, 67, 0.95);
  backdrop-filter: blur(12px);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.control-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.control-btn .label {
  display: none; /* Hide labels for cleaner look, tooltip would be better */
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.control-btn:active {
  transform: scale(0.95);
}

.control-btn.danger {
  background: var(--error-600);
  border-color: var(--error-600);
  width: 64px;
  height: 64px;
}

.control-btn.danger:hover {
  background: var(--error-700);
  box-shadow: 0 4px 16px rgba(217, 48, 37, 0.5);
}

.control-btn.active {
  background: var(--primary-500);
  border-color: var(--primary-500);
}

.chat-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--error-600);
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

/* Video Container */
.vdo-container {
  width: 100%;
  height: 100%;
  background: black;
  position: absolute;
  top: 0;
  left: 0;
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Shared File (Presentation) */
.shared-file {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: calc(80px + env(safe-area-inset-bottom, 0px)); /* Leave space for controls */
  background: #202124;
  z-index: 50;
  display: flex;
  flex-direction: column;
}

.file-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: white; /* Files usually look best on white */
  margin: 16px;
  border-radius: 8px;
  overflow: hidden;
}

.file-header {
  background-color: white;
  border-bottom: 1px solid var(--grey-200);
  padding: 12px 16px;
  color: #202124;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.file-header .btn-icon {
  color: #5f6368;
}

#fileViewerContent {
  flex: 1;
  overflow: auto;
  padding: 16px;
  display: flex;
  justify-content: center;
  background: #f8f9fa;
}

#fileViewerContent img {
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow-2);
}

/* Chat Drawer */
.chat-drawer {
  position: absolute;
  right: -400px;
  top: 0;
  bottom: 0;
  width: 400px;
  background: var(--surface-color);
  color: var(--text-primary);
  transition: right var(--transition-slow);
  display: flex;
  flex-direction: column;
  z-index: 200;
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.2);
}

.chat-drawer.open {
  right: 0;
}

@media (max-width: 600px) {
  .chat-drawer {
    width: 100%;
    right: -100%;
  }
}

.chat-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.chat-header-title svg {
  color: var(--primary-600);
}

.chat-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.chat-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.btn-secondary-small {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-secondary-small:hover {
  background: var(--primary-100);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  background: var(--bg-secondary);
}

.chat-message {
  max-width: 75%;
  animation: messageSlideIn var(--transition-base);
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-message.own {
  align-self: flex-end;
}

.chat-message.other {
  align-self: flex-start;
}

.message-sender {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-xs);
  padding: 0 var(--spacing-md);
}

.chat-message.own .message-sender {
  text-align: right;
  margin-right: 12px;
}

.message-text {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-message.other .message-text {
  background: var(--grey-100);
  color: var(--text-primary);
  border-bottom-left-radius: var(--spacing-xs);
}

.chat-message.own .message-text {
  background: var(--primary-500);
  color: white;
  border-bottom-right-radius: var(--spacing-xs);
}

.chat-input {
  padding: var(--spacing-xl);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  background: var(--surface-color);
}

.chat-input input {
  flex: 1;
  background: var(--bg-secondary);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 14px;
  transition: all var(--transition-base);
}

.chat-input input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px var(--primary-50);
}

.btn-send {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-500);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.btn-send:hover {
  background: var(--primary-600);
  transform: scale(1.05);
}

.btn-send:active {
  transform: scale(0.95);
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(32, 33, 36, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn var(--transition-base);
}

.modal.hidden {
  display: none;
}

.modal.full-screen {
  background: var(--surface-color);
}

.modal-content {
  background: var(--surface-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 540px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
  animation: scaleIn var(--transition-slow);
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal.full-screen .modal-content {
  max-width: 640px;
  max-height: 100vh;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: none;
}

/* Onboarding Styles */
.onboarding-content {
  text-align: center;
}

.onboarding-header {
  margin-bottom: var(--spacing-3xl);
}

.onboarding-illustration {
  margin-bottom: var(--spacing-2xl);
}

.illustration-icon {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: var(--primary-600);
  box-shadow: var(--shadow-lg);
}

.onboarding-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.onboarding-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
  text-align: left;
  margin-bottom: var(--spacing-3xl);
}

.step {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: #194a9e;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.step-content h4 {
  font-size: 16px;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.step-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.onboarding-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.modal-header h3 {
  font-size: 24px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: var(--grey-100);
  color: var(--text-primary);
}

/* Auth Modal Specifics */
.auth-instructions {
    background: #d9d9be;
    border-left: 4px solid #4a4a4a;
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--primary-700);
    font-size: 14px;
    line-height: 1.5;
}

.auth-instructions svg {
  flex-shrink: 0;
}

.auth-form {
  margin-bottom: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-group input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 15px;
  background: var(--surface-color);
  color: var(--text-primary);
  transition: all var(--transition-base);
}

.form-group input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px var(--primary-50);
}

.auth-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

/* New setup success banner */
.setup-success-banner {
  background: linear-gradient(135deg, var(--success-50), var(--primary-50));
  border-left: 4px solid var(--success-500);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.setup-success-banner svg {
  color: var(--success-600);
  flex-shrink: 0;
}

.setup-success-banner h4 {
  font-size: 16px;
  color: var(--success-700);
  margin-bottom: 2px;
}

.setup-success-banner p {
  font-size: 14px;
  color: var(--text-secondary);
}

.setup-instructions {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-xl);
}

.setup-instructions h4 {
  font-size: 16px;
  margin-bottom: var(--spacing-md);
}

.setup-steps-list {
  list-style: none;
  counter-reset: step-counter;
}

.setup-steps-list li {
  counter-increment: step-counter;
  padding-left: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  position: relative;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.setup-steps-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--primary-500);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

/* Enhanced QR wrapper */
.qr-wrapper {
  background: var(--bg-secondary);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.qr-container {
  margin-bottom: var(--spacing-lg);
}

.qr-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

.qr-image-container {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: inline-block;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-light);
}

.qr-image-container img {
  display: block;
  width: 200px;
  height: 200px;
}

.btn-qr-action {
    padding: var(--spacing-md) var(--spacing-2xl);
    background: var(--primary-500);
    color: #20688b;
    border-radius: var(--radius-md);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
}

.btn-qr-action:hover {
  background: var(--primary-600);
  box-shadow: var(--shadow-md);
}

/* Enhanced auth data rows */
.auth-data-section {
  margin-top: var(--spacing-2xl);
}

.section-divider {
  position: relative;
  text-align: center;
  margin: var(--spacing-2xl) 0;
}

.section-divider::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-medium);
}

.section-divider span {
  position: relative;
  background: var(--surface-color);
  padding: 0 var(--spacing-lg);
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.auth-data-row {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 2px solid var(--border-light);
  transition: all var(--transition-base);
}

.auth-data-row:hover {
  border-color: var(--primary-200);
  background: var(--surface-color);
}

.data-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
  min-width: 0;
}

.data-icon {
  width: 36px;
  height: 36px;
  background: var(--primary-50);
  color: var(--primary-600);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.data-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.data-value {
  font-family: "SF Mono", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.btn-copy-inline {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  flex-shrink: 0;
  position: relative;
}

.btn-copy-inline:hover {
  background: var(--primary-100);
  transform: scale(1.05);
}

.btn-copy-inline .icon-check {
  position: absolute;
}

.btn-copy-inline.copied .icon-copy {
  display: none;
}

.btn-copy-inline.copied .icon-check {
  display: block;
}

/* Enhanced PIN modal */
.pin-modal {
  text-align: center;
}

.pin-modal-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--success-500), var(--success-700));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-xl);
  color: white;
  box-shadow: var(--shadow-lg);
}

.pin-modal h2 {
  font-size: 28px;
  margin-bottom: var(--spacing-sm);
}

.pin-modal p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.new-pin-display {
  background: linear-gradient(135deg, var(--primary-50), var(--success-50));
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
  border: 2px solid var(--primary-200);
}

.new-pin-display span {
  font-family: "SF Mono", monospace;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 8px;
  color: var(--primary-700);
  display: block;
}

.warning-box {
  background: var(--warning-50);
  border-left: 4px solid var(--warning-500);
  padding: var(--spacing-lg);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-align: left;
}

.warning-box svg {
  color: var(--warning-600);
  flex-shrink: 0;
}

.warning-box p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

/* Excel styles from original css but adapted */
.excel-table-wrapper {
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 0;
}

.excel-table {
  width: 100%;
  border-collapse: collapse;
}

.excel-table td,
.excel-table th {
  border: 1px solid var(--grey-300);
  padding: 8px;
  min-width: 100px;
}

.excel-table td[contenteditable="true"]:focus {
  outline: 2px solid var(--primary-color);
  background: #e8f0fe;
}

/* --- Auth Setup Section Styles --- */
.auth-setup-section {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--grey-300);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.setup-instructions {
  background-color: #f8f9fa;
  border-left: 4px solid var(--primary-color);
  padding: 16px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.setup-instructions h4 {
  color: var(--primary-color);
  font-size: 16px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.setup-steps {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

.setup-steps li {
  margin-bottom: 8px;
}

.qr-wrapper {
  background: white;
  border: 1px solid var(--grey-300);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  margin-bottom: 24px;
  box-shadow: var(--shadow-1);
}

.qr-label {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
}

.qr-image-container {
    display: flex;
    justify-content: center;
    margin-bottom: 28px;
    padding: 44px;
}

.qr-image-container img {
  max-width: 200px;
  height: auto;
  border-radius: 4px;
}

.qr-hint {
  font-size: 12px;
  color: var(--text-secondary);
}

.auth-data-section {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--grey-300);
}

.section-divider {
  text-align: center;
  margin-bottom: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.auth-data-row {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
  background: white;
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid var(--grey-300);
}

.auth-data-row:last-child {
  margin-bottom: 0;
}

.data-label {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 120px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.label-icon {
  font-size: 16px;
}

.data-value-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  overflow: hidden;
}

.data-value {
  font-family: monospace;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-copy {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: background 0.2s;
}

.btn-copy:hover {
  background-color: rgba(26, 115, 232, 0.1);
}

.btn-copy.copied {
  color: var(--green-600);
}

.auth-success-message {
  margin-top: 24px;
  padding: 12px;
  background-color: #e6f4ea;
  border-radius: 4px;
  color: var(--green-600);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Enhanced Chat Experience --- */
.chat-drawer {
  box-shadow: -2px 0 12px rgba(0, 0, 0, 0.15);
  border-left: none; /* Remove border if shadow is strong enough */
}

.chat-message {
  margin-bottom: 8px; /* Spacing between messages */
}

/* Own messages (right) */
.chat-message.own .message-text {
  background-color: var(--blue-600); /* Google Blue */
  color: white;
  border-radius: 18px 18px 4px 18px; /* Sharp corner bottom-left? No, sender is right -> sharp bottom-right */
  border-bottom-right-radius: 4px;
  border-top-right-radius: 18px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Other messages (left) */
.chat-message.other .message-text {
  background-color: #f1f3f4; /* Light grey */
  color: var(--text-primary);
  border-radius: 18px 18px 18px 4px; /* Sharp corner bottom-left */
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-sender {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 2px;
  padding: 0 8px; /* Align with bubble curvature */
}

.chat-input {
  background-color: white;
  padding: 12px 16px;
}

.chat-input input {
  background-color: #f1f3f4;
  transition: background-color 0.2s, box-shadow 0.2s;
}

.chat-input input:focus {
  background-color: white;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.chat-input button {
  background-color: transparent;
  color: var(--blue-600);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: background-color 0.2s;
}

.chat-input button:hover {
  background-color: #e8f0fe;
}

/* --- Enhanced Voice Call --- */
@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.7);
  }
  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 20px rgba(26, 115, 232, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(26, 115, 232, 0);
  }
}

.voice-call-avatar {
  position: relative;
  /* Ensure it has a z-index if needed */
}

/* Only pulse if status is connected/active (we can infer this if needed, 
   but for now applying to the avatar generally looks good for an active call view) */
.voice-call-avatar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  z-index: -1;
  animation: pulse-ring 2s infinite;
}

.voice-call-name {
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* --- Call Controls Refinement --- */
.call-controls {
    /* background-color: rgba(60, 64, 67, 0.9); */
    /* backdrop-filter: blur(4px); */
    padding: 0 24px;
    gap: 24px;
    /* height: 72px; */
    border-radius: 36px;
    /* box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); */
    bottom: 32px;
}
.control-btn {
  width: 48px;
  height: 48px;
  border: none; /* Remove border */
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 22px;
}

.control-btn:hover {
  background-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.control-btn.active {
  background-color: #8ab4f8; /* Light blue */
  color: #202124; /* Dark icon */
}

.control-btn.danger {
  background: #ea4335;
  width: 64px;
  border-radius: 32px; /* Pill for hangup */
}

.control-btn.danger:hover {
  background: #d93025;
  box-shadow: 0 2px 6px rgba(234, 67, 53, 0.4);
}

/* --- Shared File / Excel Polish --- */
.file-viewer {
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.file-header {
  background-color: white;
  border-bottom: 1px solid var(--grey-200);
}

.excel-table th {
  background-color: #f8f9fa;
  font-weight: 500;
  color: var(--text-secondary);
  border-color: var(--grey-300);
}

.excel-table td {
  border-color: var(--grey-300);
  color: var(--text-primary);
}

#sharedFileAlert {
  border-radius: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background-color: white;
  border: 1px solid var(--grey-200);
}

#openSharedFileBtn {
  box-shadow: none;
  font-weight: 500;
}

/* --- Full Screen Chat Mode Specifics --- */
#callScreen[data-mode="chat"] {
  background-color: white;
}

#callScreen[data-mode="chat"] .call-header,
#callScreen[data-mode="chat"] .call-container {
  display: none !important;
}

#callScreen[data-mode="chat"] .chat-drawer {
  position: static !important; /* Override absolute */
  width: 100% !important;
  height: 100% !important;
  right: auto !important;
  top: auto !important;
  bottom: auto !important;
  box-shadow: none !important;
  border: none !important;
  z-index: 1;
  display: flex !important;
  transform: none !important;
}

#callScreen[data-mode="chat"] .chat-drawer.open {
  right: auto !important; /* Reset animation state overrides */
}

/* Responsive design improvements */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --spacing-xl: 16px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
  }

  .login-container {
    border-radius: 0;
    padding: var(--spacing-2xl);
    box-shadow: none;
    border: none;
  }

  .header-content {
    padding: 0 var(--spacing-lg);
  }

  .brand-name {
    display: none;
  }

  .home-container {
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
  }

  .card {
    padding: var(--spacing-xl);
  }

  .auth-actions {
    grid-template-columns: 1fr;
  }

  .chat-drawer {
    width: 100%;
    right: -100%;
  }

  .controls-container {
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-md);
  }

  .control-btn {
    width: 48px;
    height: 48px;
  }

  .control-btn.danger {
    width: 56px;
    height: 56px;
  }

  .modal-content {
    max-width: 95%;
    padding: var(--spacing-xl);
  }

  .voice-call-avatar {
    width: 120px;
    height: 120px;
    font-size: 48px;
  }
}

/* Añadiendo media queries responsive completas para móviles y tablets */

/* Responsive Media Queries - Mobile First Approach */

/* Extra Small Devices (Phones, less than 576px) */
@media (max-width: 575px) {
  :root {
    --header-height: 64px;
    --spacing-xl: 16px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
  }

  body {
    font-size: 14px;
  }

  h1 {
    font-size: 24px;
  }
  h2 {
    font-size: 20px;
  }
  h3 {
    font-size: 16px;
  }

  /* Login Screen Mobile */
  #loginScreen {
    padding: var(--spacing-lg);
  }

  .login-container {
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl) var(--spacing-xl);
    box-shadow: none;
  }

  .logo-circle {
    width: 64px;
    height: 64px;
  }

  .logo-title {
    font-size: 20px;
  }

  .login-header h2 {
    font-size: 24px;
  }

  .login-header p {
    font-size: 14px;
  }

  .pin-display {
    gap: 10px;
  }

  .pin-dot {
    width: 12px;
    height: 12px;
  }

  .keypad {
    gap: 12px;
    max-width: 100%;
  }

  .key {
    width: 64px;
    height: 64px;
    font-size: 22px;
  }

  /* Home Screen Mobile */
  .header {
    height: 64px;
  }

  .header-content {
    padding: 0 var(--spacing-lg);
  }

  .brand-name {
    display: none; /* Hide brand name on very small screens */
  }

  .brand-icon {
    width: 36px;
    height: 36px;
  }

  .user-info {
    padding: var(--spacing-xs) var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .avatar {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  #userName {
    font-size: 14px;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .btn-icon-header {
    width: 36px;
    height: 36px;
  }

  .home-container {
    padding: var(--spacing-lg);
    gap: var(--spacing-xl);
  }

  .card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
  }

  .card-header {
    flex-direction: row;
    gap: var(--spacing-md);
  }

  .card-icon {
    width: 40px;
    height: 40px;
  }

  .card-header h2 {
    font-size: 18px;
  }

  .card-subtitle {
    font-size: 13px;
  }

  /* Call Mode Selector Mobile */
  .mode-selector {
    gap: var(--spacing-xs);
  }

  .mode-content {
    padding: var(--spacing-sm);
    font-size: 12px;
  }

  .mode-content svg {
    width: 18px;
    height: 18px;
  }

  /* Buttons Mobile */
  .btn-primary,
  .btn-secondary,
  .btn-success {
    padding: 14px var(--spacing-lg);
    font-size: 14px;
  }

  .btn-secondary-full {
    padding: 14px var(--spacing-lg);
  }

  /* Code Display Mobile */
  .call-code-display {
    padding: var(--spacing-lg);
  }

  .code-box {
    padding: var(--spacing-md);
  }

  .code-value {
    font-size: 22px;
    letter-spacing: 2px;
  }

  .btn-copy-code {
    width: 36px;
    height: 36px;
  }

  /* Join Call Mobile */
  .join-call {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
  }

  .input-with-icon input {
    padding: 12px 12px 12px 44px;
    font-size: 15px;
  }

  /* File Upload Mobile */
  .file-item {
    padding: var(--spacing-md);
  }

  .file-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .file-name {
    font-size: 14px;
  }

  .file-meta {
    font-size: 12px;
  }

     .file-actions {
        flex-direction: column;
        /* width: 100%; */
        gap: var(--spacing-xs);
    }
  .file-actions button {
   
    font-size: 12px;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  /* Call Screen Mobile */
  .call-header {
    height: 60px;
    padding: 0 var(--spacing-md);
  }

  .call-info span {
    font-size: 14px;
  }

  .btn-present-header {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 13px;
  }

  .btn-present-header span {
    display: none; /* Show only icon on mobile */
  }

  .shared-file-alert {
    top: 68px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    transform: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .alert-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    width: 100%;
  }

  .btn-alert-action {
    width: 100%;
    padding: var(--spacing-sm);
  }

  /* Voice Call Mobile */
  .voice-call-avatar {
    width: 120px;
    height: 120px;
    font-size: 48px;
  }

  .voice-pulse {
    width: 120px;
    height: 120px;
  }

  .voice-call-name {
    font-size: 24px;
  }

  .voice-call-status {
    font-size: 15px;
  }

  .voice-call-timer {
    font-size: 16px;
    padding: var(--spacing-xs) var(--spacing-lg);
  }

  /* Call Controls Mobile */
  .call-controls {
    bottom: var(--spacing-lg);
    width: calc(100% - 32px);
    max-width: none;
  }

  .controls-container {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-sm);
    justify-content: space-around;
  }

  .control-btn {
    width: 52px;
    height: 52px;
  }

  .control-btn.danger {
    width: 56px;
    height: 56px;
  }

  /* Chat Drawer Mobile */
  .chat-drawer {
    width: 100%;
    right: -100%;
  }

  .chat-header {
    padding: var(--spacing-lg);
  }

  .chat-header-title h3 {
    font-size: 16px;
  }

  .btn-secondary-small {
    font-size: 12px;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .chat-messages {
    padding: var(--spacing-lg);
  }

  .chat-message {
    max-width: 85%;
  }

  .message-text {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 14px;
  }

  .chat-input {
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0px));
  }

  .btn-send {
    width: 40px;
    height: 40px;
  }

  /* Modals Mobile */
  .modal-content {
    width: 95%;
    padding: var(--spacing-xl);
    max-height: 90vh;
    border-radius: var(--radius-lg);
  }

  .modal.full-screen .modal-content {
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .modal-header h3 {
    font-size: 20px;
  }

  /* Onboarding Mobile */
  .illustration-icon {
    width: 100px;
    height: 100px;
  }

  .illustration-icon svg {
    width: 40px;
    height: 40px;
  }

  .onboarding-text {
    font-size: 15px;
  }

  .onboarding-steps {
    gap: var(--spacing-xl);
  }

  .step {
    gap: var(--spacing-md);
  }

  .step-number {
    width: 44px;
    height: 44px;
  }

  .step-number svg {
    width: 18px;
    height: 18px;
  }

  .step-content h4 {
    font-size: 15px;
  }

  .step-content p {
    font-size: 13px;
  }

  /* Auth Modal Mobile */
  .auth-instructions {
    padding: var(--spacing-md);
    font-size: 13px;
  }

  .auth-actions {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .setup-success-banner {
    padding: var(--spacing-md);
    gap: var(--spacing-md);
  }

  .setup-success-banner h4 {
    font-size: 15px;
  }

  .setup-success-banner p {
    font-size: 13px;
  }

  .setup-instructions {
    padding: var(--spacing-lg);
  }

  .setup-instructions h4 {
    font-size: 15px;
  }

  .setup-steps-list li {
    font-size: 13px;
    padding-left: var(--spacing-xl);
  }

  .setup-steps-list li::before {
    width: 20px;
    height: 20px;
    font-size: 11px;
  }

  .qr-wrapper {
    padding: var(--spacing-lg);
  }

  .qr-image-container {
    padding: var(--spacing-md);
  }

  .qr-image-container img {
    width: 180px;
    height: 180px;
  }

  .btn-qr-action {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 14px;
  }

  .auth-data-row {
    padding: var(--spacing-md);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .data-info {
    width: 100%;
  }

  .data-value {
    font-size: 12px;
    word-break: break-all;
  }

  .btn-copy-inline {
    align-self: flex-end;
  }

  /* Pin Modal Mobile */
  .pin-modal-icon {
    width: 64px;
    height: 64px;
  }

  .pin-modal-icon svg {
    width: 32px;
    height: 32px;
  }

  .new-pin-display span {
    font-size: 36px;
    letter-spacing: 3px;
  }

  .warning-box {
    padding: var(--spacing-md);
  }

  .warning-box p {
    font-size: 13px;
  }
}

/* Small Devices (Phones in landscape, 576px and up) */
@media (min-width: 576px) and (max-width: 767px) {
  .brand-name {
    display: inline-block;
  }

  .keypad {
    max-width: 320px;
  }

  .home-container {
    padding: var(--spacing-xl);
  }

  .chat-drawer {
    width: 380px;
  }
}

/* Medium Devices (Tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991px) {
  .home-container {
    grid-template-columns: 1fr;
    max-width: 720px;
  }

  .chat-drawer {
    width: 400px;
  }

  .call-controls {
    width: auto;
  }

  .controls-container {
    padding: var(--spacing-md) var(--spacing-2xl);
    gap: var(--spacing-xl);
  }
}

/* Large Devices (Desktops, 992px and up) */
@media (min-width: 992px) {
  .home-container {
    grid-template-columns: 1.2fr 0.8fr;
  }

  /* Enhanced hover effects for desktop */
  .key:hover {
    transform: scale(1.08);
  }

  .card:hover {
    transform: translateY(-2px);
  }

  .file-item:hover {
    transform: translateY(-1px);
  }
}

/* Extra Large Devices (Large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .home-container {
    max-width: 1200px;
  }

  .modal-content {
    max-width: 600px;
  }
}

/* Touch device optimization */
@media (hover: none) and (pointer: coarse) {
  /* Optimizaciones para dispositivos táctiles */

  .key,
  .control-btn,
  .btn-primary,
  .btn-secondary,
  .btn-success,
  .btn-icon,
  button {
    min-height: 44px; /* Minimum touch target size for iOS */
    min-width: 44px;
  }

  /* Remove hover states on touch devices */
  .key:hover,
  .control-btn:hover,
  .btn-primary:hover,
  .btn-secondary:hover {
    transform: none;
  }

  /* Enhanced active states for better touch feedback */
  .key:active {
    transform: scale(0.92);
    background-color: var(--grey-300);
  }

  .control-btn:active {
    transform: scale(0.92);
  }

  .btn-primary:active,
  .btn-success:active {
    transform: scale(0.96);
  }

  /* Disable double-tap zoom */
  * {
    touch-action: manipulation;
  }
}

/* Prevent text selection on interactive elements */
.key,
.control-btn,
button,
.mode-option,
.file-item {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* Safe area insets for notched devices */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .call-controls {
    bottom: calc(var(--spacing-2xl) + env(safe-area-inset-bottom));
  }

  .chat-input {
    padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom));
  }

  .login-container {
    padding-bottom: calc(var(--spacing-3xl) + env(safe-area-inset-bottom));
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-light: var(--grey-400);
    --border-medium: var(--grey-500);
  }

  .card,
  .modal-content,
  .chat-drawer {
    border: 2px solid var(--border-medium);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .voice-pulse,
  .call-status-indicator {
    animation: none !important;
  }
}

/* Print styles */
@media print {
  .header,
  .call-controls,
  .chat-drawer,
  .call-header,
  button {
    display: none !important;
  }

  .screen {
    overflow: visible;
  }

  .card {
    page-break-inside: avoid;
  }
}

/* Dark mode support (if needed in the future) */
@media (prefers-color-scheme: dark) {
  /* Keep light mode for now, but structure is ready */
}

/* Landscape mobile orientation */
@media (max-width: 767px) and (orientation: landscape) {
  .login-container {
    max-height: 90vh;
    overflow-y: auto;
  }

  .voice-call-avatar {
    width: 100px;
    height: 100px;
    font-size: 40px;
  }

  .voice-call-content {
    padding: var(--spacing-lg) 0;
  }

  .onboarding-content {
    max-height: 90vh;
    overflow-y: auto;
  }

  .illustration-icon {
    width: 80px;
    height: 80px;
  }
}

/* ======================================
   CALL SCREEN
   ====================================== */

#callScreen {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.call-header {
  height: 64px;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

.btn-icon-call {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #100000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon-call:active {
  background: rgba(255, 255, 255, 0.25);
}

.call-status-pill {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.call-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
}

.voice-call-view {
  text-align: center;
}

.voice-call-avatar-wrapper {
  position: relative;
  margin-bottom: var(--spacing-2xl);
}

.voice-call-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  font-weight: 600;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  margin: 0 auto;
}

.voice-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

.voice-call-name {
  font-size: 32px;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.voice-call-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-lg);
}

.voice-call-status::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
}

.voice-call-timer {
  font-size: 18px;
  font-family: monospace;
  color: rgba(255, 255, 255, 0.7);
}

.call-controls {
  position: fixed;
  bottom: var(--spacing-3xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
}

.controls-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  background: rgba(60, 64, 67, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg) var(--spacing-2xl);
  border-radius: var(--radius-full);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.control-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  position: relative;
}

.control-btn:active {
  transform: scale(0.9);
}

.control-btn.danger {
  width: 72px;
  height: 72px;
  background: var(--color-error);
}

.control-btn.active {
  background: var(--color-primary);
}

.chat-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 20px;
  height: 20px;
  background: var(--color-error);
  color: white;
  font-size: 11px;
  font-weight: 700;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
}

/* Chat Drawer */
.chat-drawer {
  position: fixed;
  right: -100%;
  top: 0;
  bottom: 0;
  width: 100%;
  
  background: var(--color-surface);
  color: var(--color-text-primary);
  transition: right 0.3s;
  z-index: 200;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
}

.chat-drawer.open {
  right: 0;
}

.chat-header {
  height: 64px;
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-header-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.chat-header-title h3 {
  font-size: 18px;
  font-weight: 500;
}

.chat-header-title svg {
  color: var(--color-primary);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
  background: #f5f5f5;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.chat-message {
  max-width: 75%;
}

.chat-message.own {
  align-self: flex-end;
}

.chat-message.other {
  align-self: flex-start;
}

.message-sender {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
  padding: 0 var(--spacing-md);
}

.message-text {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 18px;
  font-size: 15px;
  line-height: 1.4;
}

.chat-message.other .message-text {
  background: white;
  color: var(--color-text-primary);
  border-bottom-left-radius: 4px;
}

.chat-message.own .message-text {
  background: var(--color-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-input {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  background: var(--color-surface);
}

.chat-input input {
  flex: 1;
  height: 44px;
  padding: 0 var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 15px;
}

.chat-input input:focus {
  border-color: var(--color-primary);
}

.btn-send {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-send:active {
  transform: scale(0.9);
}

/* Modals */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

/* Responsive */
@media (min-width: 768px) {
  .home-container {
    max-width: 600px;
    margin: 0 auto;
  }

  .files-section {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 380px) {
  .key {
    width: 70px;
    height: 70px;
    font-size: 24px;
  }

  .keypad {
    gap: var(--spacing-sm);
  }
}

/* Safe area for notched devices */
@supports (padding: env(safe-area-inset-bottom)) {
  .home-container {
    padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom));
  }

  .fab {
    bottom: calc(80px + env(safe-area-inset-bottom));
  }

  .call-controls {
    bottom: calc(var(--spacing-3xl) + env(safe-area-inset-bottom));
  }
}



#fileSelectorModal{
  color:#545454;
}

.file-selector-item{
 display: inline-flex;
    border: 1px solid #bebebe;
    padding: 10px;
}