/* ============================================================
   SHARED HEADER — Hinbuna Kurdi
   Single source of truth for all page headers.
   Used by: P1-landing.html, index.html, onboarding.html
   ============================================================ */

/* ============================================
   HEADER — Base (Light Mode)
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(253, 248, 243, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 221, 211, 0.5);
  transition: box-shadow 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 2px 16px rgba(26, 42, 31, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (min-width: 768px) {
  .header-inner { height: 64px; padding: 0 40px; }
}

@media (min-width: 1024px) {
  .header-inner { padding: 0 60px; }
}

/* ============================================
   LOGO
   ============================================ */
.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.header-logo-leaf {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .header-logo-leaf { width: 26px; height: 26px; }
}

.header-logo-text {
  font-family: var(--font-heading, 'Nunito', sans-serif);
  font-weight: 800;
  font-size: 15px;
  line-height: 1.1;
  letter-spacing: 0.2px;
  color: var(--color-primary, var(--primary, #2D5A3D));
}

.header-logo-text br { display: block; }

@media (min-width: 768px) {
  .header-logo-text { font-size: 22px; white-space: nowrap; }
  .header-logo-text br { display: none; }
}

/* ============================================
   HEADER LEFT (logo + back button group)
   ============================================ */
.header-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================
   BACK TO GALLERY (dev utility)
   ============================================ */
.header-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-left: 4px;
  border-radius: 6px;
  color: var(--text-secondary, #5A6B5E);
  opacity: 0.45;
  transition: opacity 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.header-back-btn svg {
  width: 16px;
  height: 16px;
}

.header-back-btn:hover {
  opacity: 1;
  color: var(--color-primary, var(--primary, #2D5A3D));
  background-color: rgba(45, 90, 61, 0.06);
}

[data-theme="dark"] .header-back-btn {
  color: var(--text-secondary, #9CADA8);
}

[data-theme="dark"] .header-back-btn:hover {
  color: var(--color-accent, var(--accent, #D4A843));
  background-color: rgba(245, 238, 230, 0.08);
}

/* ============================================
   HEADER ACTIONS
   ============================================ */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

@media (min-width: 768px) {
  .header-actions { gap: 16px; }
}

/* ============================================
   ICON BUTTONS (theme toggle, lang picker)
   ============================================ */
.header-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm, 8px);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-primary, var(--primary, #2D5A3D));
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.header-icon-btn:hover {
  background-color: rgba(45, 90, 61, 0.06);
}

.header-icon-btn:active {
  background-color: rgba(45, 90, 61, 0.1);
  transform: scale(0.95);
}

.header-icon-btn svg { width: 20px; height: 20px; }

/* ============================================
   APP HEADER (app-header context)
   Shared base for S1–S10 student screens.
   Sizes match public header for consistency.
   Teacher screens use .app-header--wide for
   web-first edge-to-edge layout.
   ============================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-page, #FDF8F3);
  border-bottom: 1px solid var(--border, #E5DDD3);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.app-header.scrolled {
  box-shadow: var(--shadow-md, 0 2px 16px rgba(26, 42, 31, 0.06));
}

.app-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 20px;
  height: 56px;
}

@media (min-width: 768px) {
  .app-header-inner { height: 64px; }
}

/* ============================================
   WIDE VARIANT — Teacher screens (web-first)
   .app-header--wide overrides the 600px student
   constraint to match public header edge-to-edge.
   ============================================ */
.app-header--wide .app-header-inner {
  max-width: 1200px;
}

@media (min-width: 768px) {
  .app-header--wide .app-header-inner { padding: 0 40px; }
}

@media (min-width: 1024px) {
  .app-header--wide .app-header-inner { padding: 0 60px; }
}

.app-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary, #1A2A1F);
}

.app-logo-sun {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .app-logo-sun { width: 26px; height: 26px; }
}

.app-logo-text {
  font-family: var(--font-heading, 'Nunito', sans-serif);
  font-weight: 800;
  font-size: 15px;
  line-height: 1.1;
  letter-spacing: 0.2px;
  color: var(--color-primary, var(--primary, #2D5A3D));
}

.app-logo-text br { display: block; }

@media (min-width: 768px) {
  .app-logo-text { font-size: 22px; white-space: nowrap; }
  .app-logo-text br { display: none; }
}

.page-title {
  font-family: var(--font-heading, 'Nunito', sans-serif);
  font-weight: 700;
  font-size: 15px;
  color: var(--text-primary, #1A2A1F);
}

@media (min-width: 768px) {
  .page-title { font-size: 17px; }
}

.back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm, 8px);
  color: var(--text-secondary, #5A6B5E);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.back-btn:hover {
  background-color: var(--bg-surface, #F5EEE6);
  color: var(--text-primary, #1A2A1F);
}

.back-btn svg { width: 20px; height: 20px; }

.app-header .header-actions {
  gap: 4px;
}

.app-header .header-icon-btn {
  color: var(--text-secondary, #5A6B5E);
}

.app-header .header-icon-btn:hover {
  background-color: var(--bg-surface, #F5EEE6);
  color: var(--text-primary, #1A2A1F);
}

/* ============================================
   LOGIN BUTTON
   ============================================ */
.header-login {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-primary, var(--primary, #2D5A3D));
  padding: 7px 16px;
  border-radius: var(--radius-sm, 8px);
  border: 1.5px solid rgba(45, 90, 61, 0.2);
  transition: background-color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.header-login:hover {
  background-color: rgba(45, 90, 61, 0.04);
  border-color: rgba(45, 90, 61, 0.35);
}

/* ============================================
   PLAY/PREVIEW BUTTON (dev pages only)
   ============================================ */
.header-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background-color: rgba(212, 168, 67, 0.12);
  color: #D4A843;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
}

.header-play-btn:hover {
  background-color: rgba(212, 168, 67, 0.22);
  transform: scale(1.08);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15);
}

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

.nav-play-icon {
  width: 22px;
  height: 22px;
}

[data-theme="dark"] .header-play-btn {
  background-color: rgba(212, 168, 67, 0.15);
  color: #D4A843;
}

[data-theme="dark"] .header-play-btn:hover {
  background-color: rgba(212, 168, 67, 0.28);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.12);
}

/* Builder button — green variant */
.header-builder-btn {
  color: #2D5A3D;
  background-color: rgba(45, 90, 61, 0.08);
}

.header-builder-btn:hover {
  background-color: rgba(45, 90, 61, 0.16);
  box-shadow: 0 0 0 3px rgba(45, 90, 61, 0.12);
}

[data-theme="dark"] .header-builder-btn {
  color: #4A9B6A;
  background-color: rgba(74, 155, 106, 0.1);
}

[data-theme="dark"] .header-builder-btn:hover {
  background-color: rgba(74, 155, 106, 0.2);
  box-shadow: 0 0 0 3px rgba(74, 155, 106, 0.1);
}

/* ============================================
   INLINE NAV CONTAINER (desktop only)
   ============================================ */
.header-nav-inline {
  display: flex;
  align-items: center;
  gap: 12px;
}

@media (min-width: 768px) {
  .header-nav-inline { gap: 16px; }
}

/* Hide inline nav on mobile, show hamburger */
@media (max-width: 639px) {
  .header-nav-inline {
    display: none;
  }
}

/* ============================================
   HAMBURGER BUTTON (dev pages, mobile only)
   ============================================ */
.header-hamburger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm, 8px);
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-primary, var(--primary, #2D5A3D));
  transition: background-color 0.2s ease, transform 0.15s ease;
  position: relative;
  order: 99;
}

.header-hamburger-btn:hover {
  background-color: rgba(45, 90, 61, 0.06);
}

.header-hamburger-btn:active {
  background-color: rgba(45, 90, 61, 0.1);
  transform: scale(0.95);
}

.header-hamburger-btn .hamburger-icon,
.header-hamburger-btn .hamburger-close-icon {
  width: 20px;
  height: 20px;
  position: absolute;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.header-hamburger-btn .hamburger-close-icon {
  opacity: 0;
  transform: rotate(-90deg);
}

.header-hamburger-btn.open .hamburger-icon {
  opacity: 0;
  transform: rotate(90deg);
}

.header-hamburger-btn.open .hamburger-close-icon {
  opacity: 1;
  transform: rotate(0deg);
}

[data-theme="dark"] .header-hamburger-btn {
  color: var(--text-primary, var(--text, #F5EEE6));
}

[data-theme="dark"] .header-hamburger-btn:hover {
  background-color: rgba(245, 238, 230, 0.08);
}

/* Hamburger is always visible (display: flex in base rule) */

/* ============================================
   DEV NAV DROPDOWN (mobile hamburger menu)
   ============================================ */
.dev-nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 198;
  background-color: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.dev-nav-backdrop.open {
  display: block;
  opacity: 1;
}

.dev-nav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background-color: var(--bg-page, var(--bg, #FDF8F3));
  border: 1px solid var(--border, #E5DDD3);
  border-radius: var(--radius-md, 12px);
  box-shadow: 0 12px 36px rgba(26, 42, 31, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
  min-width: 200px;
  padding: 8px 0;
  z-index: 200;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.dev-nav-dropdown.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
  animation: devNavFadeIn 0.2s ease forwards;
}

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

.dev-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 20px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary, var(--text, #1A2A1F));
  text-decoration: none;
  text-align: left;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.dev-nav-item:hover {
  background-color: var(--bg-surface, var(--surface, #F5EEE6));
  color: var(--color-primary, var(--primary, #2D5A3D));
}

.dev-nav-item .nav-link-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.dev-nav-item--active {
  color: #D4A843;
  font-weight: 600;
  cursor: default;
  pointer-events: none;
}

.dev-nav-item--active .nav-link-icon {
  color: #D4A843;
}

/* Dark mode for dropdown */
[data-theme="dark"] .dev-nav-dropdown {
  background-color: var(--bg-page, var(--bg, #1A2024));
  border-color: var(--border, #2F3B3E);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .dev-nav-item {
  color: var(--text-primary, var(--text, #F5EEE6));
}

[data-theme="dark"] .dev-nav-item:hover {
  background-color: var(--bg-surface, var(--surface, #232D31));
  color: var(--color-accent, var(--accent, #D4A843));
}

[data-theme="dark"] .dev-nav-item--active {
  color: #D4A843;
}

[data-theme="dark"] .dev-nav-backdrop {
  background-color: rgba(0, 0, 0, 0.5);
}

/* On desktop, hide dropdown items that are already shown inline */
@media (min-width: 640px) {
  .dev-nav-item[data-inline="true"] {
    display: none;
  }
}

/* ============================================
   NAV LINK (gallery/onboarding/components pages)
   ============================================ */
.header-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-decoration: none;
  color: var(--text-secondary, #5A6B5E);
  background-color: var(--bg-surface, var(--surface, #F5EEE6));
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border, #E5DDD3);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.header-nav-link:hover {
  color: var(--color-primary, var(--primary, #2D5A3D));
  border-color: var(--color-primary, var(--primary, #2D5A3D));
}

.header-nav-link--active {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.nav-link-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.nav-link-text {
  /* visible by default on desktop */
}

/* Mobile: icon only */
@media (max-width: 767px) {
  .header-nav-link {
    padding: 6px;
    border-radius: 8px;
  }

  .nav-link-text {
    display: none;
  }

  .nav-link-icon {
    width: 16px;
    height: 16px;
  }
}

/* ============================================
   THEME TOGGLE — Icon Swap
   ============================================ */
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="dark"] .theme-icon-moon { display: none; }
.theme-icon-sun { display: none; }
.theme-icon-moon { display: block; }

/* ============================================
   LANGUAGE PICKER
   ============================================ */
.lang-picker {
  position: relative;
}

.lang-dropdown {
  position: fixed;
  top: 60px;
  left: 50%;
  width: max-content;
  background-color: var(--bg-page, var(--bg, #FDF8F3));
  border: 1px solid var(--border, #E5DDD3);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow-xl, 0 12px 36px rgba(26, 42, 31, 0.12));
  padding: 6px 0;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px) scale(0.96);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Desktop: anchor under icon instead of viewport center */
@media (min-width: 768px) {
  .lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: auto;
    right: 0;
    transform: translateY(-8px) scale(0.96);
  }
  .lang-dropdown.open {
    transform: translateY(0) scale(1);
  }
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 14px;
  font-weight: 400;
  color: var(--text-primary, var(--text, #1A2A1F));
  text-align: left;
  transition: background-color 0.15s ease;
  line-height: 1.4;
}

.lang-option:hover {
  background-color: var(--bg-surface, var(--surface, #F5EEE6));
}

.lang-option.active {
  font-weight: 600;
  color: var(--color-primary, var(--primary, #2D5A3D));
}

.lang-option-check {
  width: 0;
  height: 16px;
  overflow: hidden;
  color: var(--color-primary, var(--primary, #2D5A3D));
  flex-shrink: 0;
}

.lang-option.active .lang-option-check {
  width: 16px;
}

.lang-option-label {
  flex: none;
}

.lang-option-native {
  font-size: 12px;
  color: var(--text-secondary, #5A6B5E);
  margin-left: 8px;
}

/* RTL language labels */
.lang-option[data-dir="rtl"] .lang-option-native {
  direction: rtl;
}

/* Backdrop to close dropdown */
.lang-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 199;
}
.lang-backdrop.open { display: block; }

/* ============================================
   DARK MODE — Header overrides
   ============================================ */
[data-theme="dark"] .header {
  background-color: color-mix(in srgb, var(--bg, #1A2024) 92%, transparent);
  border-bottom-color: color-mix(in srgb, var(--border, #2F3B3E) 50%, transparent);
}

[data-theme="dark"] .header.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .header-logo-text,
[data-theme="dark"] .app-logo-text {
  color: var(--text-primary, var(--text, #F5EEE6));
}

/* Logo sun is already gold -- stays visible */
[data-theme="dark"] .header-icon-btn {
  color: var(--text-primary, var(--text, #F5EEE6));
}

[data-theme="dark"] .header-icon-btn:hover {
  background-color: rgba(245, 238, 230, 0.08);
}

[data-theme="dark"] .header-icon-btn:active {
  background-color: rgba(245, 238, 230, 0.12);
}

[data-theme="dark"] .header-login {
  color: var(--color-accent, var(--accent, #D4A843));
  border-color: rgba(212, 168, 67, 0.35);
}

[data-theme="dark"] .header-login:hover {
  background-color: rgba(212, 168, 67, 0.08);
  border-color: rgba(212, 168, 67, 0.55);
}

[data-theme="dark"] .lang-option.active {
  color: var(--color-accent, var(--accent, #D4A843));
}

[data-theme="dark"] .lang-option-check {
  color: var(--color-accent, var(--accent, #D4A843));
}

[data-theme="dark"] .header-nav-link {
  color: var(--text-secondary, #9CADA8);
  background-color: var(--bg-surface, var(--surface, #232D31));
  border-color: var(--border, #2F3B3E);
}

[data-theme="dark"] .header-nav-link:hover {
  color: var(--color-accent, var(--accent, #D4A843));
  border-color: var(--color-accent, var(--accent, #D4A843));
}

/* ============================================
   APP SWITCHER (Google-style 3x3 grid)
   ============================================ */
.app-switcher {
  position: relative;
}

.app-switcher-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 50%;
  color: var(--text-secondary, #5A6B5E);
  transition: background 0.2s, color 0.2s;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.app-switcher-btn:hover {
  background: var(--bg-surface, #F5EEE6);
  color: var(--text-primary, #1A2A1F);
}

.app-switcher-btn svg {
  width: 20px;
  height: 20px;
}

/* Dropdown */
.app-switcher-dropdown {
  position: fixed;
  top: 60px;
  left: 50%;
  width: min(300px, calc(100vw - 32px));
  max-height: 420px;
  overflow-y: auto;
  background: var(--bg-page, #FDF8F3);
  border: 1px solid var(--border, #E5DDD3);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(26, 42, 31, 0.12);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px) scale(0.96);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 200;
}

.app-switcher-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Desktop: anchor under icon instead of viewport center */
@media (min-width: 768px) {
  .app-switcher-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: auto;
    right: 0;
    transform: translateY(-8px) scale(0.96);
  }
  .app-switcher-dropdown.open {
    transform: translateY(0) scale(1);
  }
}

/* Dark mode shadow */
[data-theme="dark"] .app-switcher-dropdown {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* Dropdown header row (title + learn more) */
.app-switcher-dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 2px;
}

.app-switcher-dropdown-title {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary, #5A6B5E);
  padding: 4px 8px;
  opacity: 0.7;
}

.app-switcher-learn-more {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-accent, #D4A843);
  text-decoration: none;
  font-size: 11px;
  font-style: italic;
  opacity: 0.7;
  transition: opacity 0.15s;
  padding: 4px 8px;
  border-radius: 6px;
}

.app-switcher-learn-more:hover {
  opacity: 1;
  background: var(--bg-surface, #F5EEE6);
}

/* App items */
.app-switcher-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
  color: inherit;
}

.app-switcher-item:hover {
  background: var(--bg-surface, #F5EEE6);
}

.app-switcher-item--active {
  background: color-mix(in srgb, var(--color-accent, #D4A843) 10%, var(--bg-page, #FDF8F3));
  border: 1px solid color-mix(in srgb, var(--color-accent, #D4A843) 25%, transparent);
}

.app-switcher-item--active:hover {
  background: color-mix(in srgb, var(--color-accent, #D4A843) 15%, var(--bg-page, #FDF8F3));
}

.app-switcher-icon {
  font-size: 22px;
  line-height: 1;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--bg-surface, #F5EEE6);
  flex-shrink: 0;
}

.app-switcher-item--active .app-switcher-icon {
  background: color-mix(in srgb, var(--color-accent, #D4A843) 18%, var(--bg-surface, #F5EEE6));
}

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

.app-switcher-name {
  font-family: var(--font-heading, 'Nunito', sans-serif);
  font-weight: 700;
  font-size: 13px;
  color: var(--text-primary, #1A2A1F);
  line-height: 1.3;
}

.app-switcher-tagline {
  font-size: 11px;
  color: var(--text-secondary, #5A6B5E);
  line-height: 1.3;
}

.app-switcher-badge {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary, #5A6B5E);
  background: var(--bg-surface, #F5EEE6);
  padding: 2px 6px;
  border-radius: 4px;
  opacity: 0.7;
  flex-shrink: 0;
}

/* Backdrop for mobile */
.app-switcher-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 199;
}

.app-switcher-backdrop.open {
  display: block;
}

/* ============================================
   SMALL MOBILE (Galaxy S20, etc. ≤ 399px)
   ============================================ */
@media (max-width: 399px) {
  /* Public header */
  .header-inner { padding: 0 12px; }
  .header-logo-text { font-size: 13px; }
  .header-logo-leaf { width: 20px; height: 20px; }
  .header-login { font-size: 13px; padding: 5px 10px; }

  /* Student header */
  .app-header-inner { padding: 0 12px; }
  .app-logo-sun { width: 20px; height: 20px; }
  .app-logo-text { font-size: 13px; }
  .page-title { font-size: 13px; }

  /* Shared (both header types) */
  .header-actions { gap: 4px; }
  .header-icon-btn { width: 32px; height: 32px; }
  .header-icon-btn svg { width: 18px; height: 18px; }
  .app-switcher-btn { width: 32px; height: 32px; }
  .app-switcher-btn svg { width: 18px; height: 18px; }
}