/* ============================================================
   TILORA Dizayn Tizimi — Professional Typography & Styling
   Palitra: Ink, Paper, Teal (ijobiy/ochiq), Clay (AI-lock/yopiq), Amber (sabab/ogohlantirish)
   ============================================================ */

:root {
  --ink: #16202E;
  --ink-2: #243449;
  --ink-3: #5E6A79;
  --paper: #FAF8F4;
  --card: #FFFFFF;
  --surface-2: #F2F0EB;
  --line: #DCD8D0;
  --line-2: #EDEAE4;
  
  --teal: #1F6F63;
  --teal-deep: #14544A;
  --teal-soft: #E8F2F0;
  
  --clay: #A8503A;
  --clay-soft: #F9EEEA;
  
  --amber: #8A6A17;
  --amber-soft: #FBF4E2;
  
  --muted: #6E7681;
  --shadow: 0 2px 8px rgba(22, 32, 46, 0.06), 0 12px 28px rgba(22, 32, 46, 0.04);
  
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", Consolas, monospace;
}

[data-theme="dark"] {
  --ink: #E8ECF2;
  --ink-2: #C2CBD6;
  --ink-3: #97A3B1;
  --paper: #101419;
  --card: #181D24;
  --surface-2: #1F252D;
  --line: #2B333D;
  --line-2: #3A4450;
  --teal: #6FB9A9;
  --teal-deep: #93D0C2;
  --teal-soft: #12302B;
  --clay: #D68F78;
  --clay-soft: #331F19;
  --amber: #D6B869;
  --amber-soft: #2E2716;
  --muted: #8B95A1;
  --shadow: 0 4px 16px rgba(0,0,0,0.3);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

button { font-family: inherit; cursor: pointer; transition: all 0.2s ease; }
a { color: var(--teal); text-decoration: none; }

.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  flex: 0 0 260px;
  background: #121924;
  color: #E8ECF2;
  padding: 28px 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.brand {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: 0.5px;
  padding: 0 24px 4px;
}
.brand em { font-style: normal; color: #7FB3A8; }
.tagline {
  padding: 0 24px 20px;
  font-size: 11.5px;
  color: #8C9AAC;
  line-height: 1.4;
  border-bottom: 1px solid #1E2B3C;
}

.nav-section-title {
  padding: 18px 24px 8px;
  font-size: 10.5px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: #6C7A8C;
  font-weight: 700;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: #C6D0DC;
  padding: 10px 24px;
  font-size: 13.5px;
  border-left: 3px solid transparent;
}
.nav-btn:hover { background: #1C2736; color: #fff; }
.nav-btn.active {
  background: #1C2736;
  color: #fff;
  border-left-color: #7FB3A8;
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
  padding: 20px 24px;
  border-top: 1px solid #1E2B3C;
  font-size: 11px;
  color: #7E8B9C;
  line-height: 1.6;
}

/* Main Content */
.main-content {
  flex: 1;
  padding: 36px 44px 80px;
  max-width: 1200px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.page-title {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--ink);
}
.page-subtitle {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 3px;
}

/* Grid & Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.card h3 {
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 16px;
  font-weight: 700;
}

/* Rows and indicators */
.row { margin-bottom: 14px; }
.row-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 5px; }
.row-top b { font-size: 13.5px; font-weight: 600; }
.track { height: 7px; background: var(--line-2); border-radius: 4px; overflow: hidden; }
.fill { height: 100%; background: var(--teal); border-radius: 4px; transition: width 0.7s ease; }
.fill.warn { background: var(--clay); }
.lvl-badge { font-family: var(--serif); font-size: 16px; font-weight: 700; color: var(--teal); }

/* Rationale box */
.why-box {
  background: var(--amber-soft);
  border: 1px solid #E7D9AE;
  border-radius: 7px;
  padding: 16px 20px;
  margin-top: 20px;
  color: #5F4A0F;
  font-size: 13.5px;
  line-height: 1.6;
}
.why-box b {
  display: block;
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* Path items */
.path-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px 20px;
  margin-bottom: 10px;
}
.path-row.active {
  border-color: var(--teal);
  box-shadow: 0 0 0 1px var(--teal);
}
.path-row[data-topic] { cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .15s; }
.path-row[data-topic]:hover, .path-row[data-topic]:focus-visible {
  border-color: var(--teal);
  box-shadow: 0 2px 10px rgba(13, 110, 110, 0.15);
  transform: translateY(-1px);
  outline: none;
}
.path-row .path-go { font-size: 12px; color: var(--teal); font-weight: 700; white-space: nowrap; opacity: .75; }
.path-row:hover .path-go { opacity: 1; }
.path-row.selected { border-color: var(--teal); background: var(--teal-soft); }
.path-row.done { background: rgba(31, 111, 99, 0.03); }
.path-week { font-family: var(--serif); font-size: 14px; width: 90px; flex: 0 0 90px; font-weight: 600; }
.path-name { flex: 1; font-size: 14px; }
.chip {
  font-size: 11px;
  padding: 3px 11px;
  border-radius: 12px;
  font-weight: 500;
  border: 1px solid transparent;
}
.chip.full { background: var(--clay-soft); color: var(--clay); border-color: #E4C6BC; }
.chip.part { background: var(--amber-soft); color: var(--amber); border-color: #E7D9AE; }
.chip.none { background: var(--teal-soft); color: var(--teal); border-color: #BCD9D3; }

/* Lesson flow steps */
.steps-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.step-tab {
  flex: 1;
  padding: 12px 10px;
  text-align: center;
  font-size: 12.5px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
}
.step-tab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  font-weight: 600;
}
.step-tab.passed {
  background: var(--teal-soft);
  color: var(--teal);
  border-color: #BCD9D3;
}

/* AI Lock Panel */
.lock-panel {
  background: var(--clay-soft);
  border: 1px solid #E4C6BC;
  border-radius: 8px;
  padding: 20px;
}
.lock-title {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--clay);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}
.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--clay);
  animation: pulseAnim 2s infinite ease-in-out;
}
@keyframes pulseAnim { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.85); } }

.ai-locked-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid #E4C6BC;
  background: #FCF6F4;
  color: #9A6552;
  cursor: not-allowed;
  position: relative;
}
.ai-locked-btn::after {
  content: 'YOPIQ (403)';
  position: absolute;
  right: 12px;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--clay);
  font-weight: 700;
}

.allowed-tool-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
}
.allowed-tool-btn:hover { border-color: var(--teal); background: var(--teal-soft); }

/* Textarea & Buttons */
textarea.task-editor {
  width: 100%;
  min-height: 220px;
  padding: 16px;
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.7;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--ink);
  resize: vertical;
}
textarea.task-editor:focus { outline: 2px solid var(--teal); outline-offset: 1px; }

.btn-primary {
  display: inline-block;
  padding: 12px 24px;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}
.btn-primary:hover { background: var(--ink-2); }
.btn-primary:disabled { background: var(--muted); cursor: not-allowed; }

/* Feedback cards */
.fb-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  padding: 18px 20px;
  margin-bottom: 12px;
}
.fb-item.grammar { border-left-color: var(--clay); }
.fb-item.lexis { border-left-color: var(--amber); }
.fb-badge {
  font-size: 10.5px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 4px;
}
.fb-item.grammar .fb-badge { color: var(--clay); }
.fb-item.lexis .fb-badge { color: var(--amber); }

/* Metacognitive scales */
.scale-group { display: flex; gap: 8px; }
.scale-btn {
  width: 36px;
  height: 32px;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 4px;
  font-size: 13px;
}
.scale-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* Modals & Screens */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* Audio Sound Wave Visualizer */
@keyframes waveAnim {
  0%, 100% { height: 4px; }
  50% { height: 16px; }
}
.sound-wave-bar {
  display: inline-block;
  width: 3px;
  height: 6px;
  background: var(--teal);
  border-radius: 2px;
  animation: waveAnim 0.8s ease-in-out infinite;
}
.sound-wave-bar:nth-child(2) { animation-delay: 0.15s; }
.sound-wave-bar:nth-child(3) { animation-delay: 0.3s; }
.sound-wave-bar:nth-child(4) { animation-delay: 0.45s; }
.sound-wave-bar:nth-child(5) { animation-delay: 0.6s; }

/* Audio pleyerlardan yuklab olish (download) tugmasini butunlay yashirish */
audio::-internal-media-controls-download-button {
  display: none !important;
}
audio::-webkit-media-controls-enclosure {
  overflow: hidden;
}

/* ============================================================
   RESPONSIVE & MOBILE DESIGN SYSTEM (Smartfon va Planshetlar)
   ============================================================ */

/* Desktopda mobil boshqaruv elementlarini yashirish */
.mobile-topbar {
  display: none;
}
.sidebar-backdrop {
  display: none;
}
.sidebar-close-btn {
  display: none;
}
.sidebar-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Kichik ekranlar va Planshetlar (<= 992px) */
@media (max-width: 992px) {
  .main-content {
    padding: 24px 20px 80px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Smartfonlar va ixcham planshetlar (<= 768px) */
@media (max-width: 768px) {
  body {
    font-size: 14.5px;
  }

  .app-container {
    flex-direction: column;
    min-height: 100vh;
  }

  /* Mobil Yuqori Panel (Sticky Bar) */
  .mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 56px;
    background: #121924;
    color: #E8ECF2;
    padding: 0 16px;
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  }

  .mobile-menu-btn {
    background: none;
    border: none;
    color: #E8ECF2;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
  }
  .mobile-menu-btn:active {
    background: rgba(255, 255, 255, 0.1);
  }

  .mobile-brand {
    font-family: var(--serif);
    font-size: 22px;
    letter-spacing: 0.5px;
    cursor: pointer;
    user-select: none;
  }
  .mobile-brand em {
    font-style: normal;
    color: #7FB3A8;
  }

  .mobile-top-actions {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .mobile-auth-icon-btn {
    padding: 6px 10px;
    font-size: 13px;
    border-radius: 18px;
    background: var(--teal);
    color: #fff;
    border: none;
  }

  /* Off-canvas Yon Menyu (Sidebar Drawer) */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    max-width: 85vw;
    height: 100vh;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: none;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.4);
  }

  .sidebar-header-row {
    padding-right: 14px;
  }

  .sidebar-close-btn {
    display: block;
    background: none;
    border: none;
    color: #C6D0DC;
    font-size: 28px;
    cursor: pointer;
    padding: 4px 10px;
    line-height: 1;
    border-radius: 6px;
  }
  .sidebar-close-btn:hover,
  .sidebar-close-btn:active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
  }

  /* Qoraytirilgan orqa fon (Backdrop) */
  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(10, 15, 25, 0.6);
    backdrop-filter: blur(3px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
  }

  /* Asosiy ishchi maydon */
  .main-content {
    padding: 16px 14px 60px;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  /* Sarlavha paneli (Top-bar) */
  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 14px;
  }
  .top-bar > div:last-child {
    width: 100%;
    justify-content: flex-start;
  }
  .page-title {
    font-size: 22px;
  }
  .page-subtitle {
    font-size: 12.5px;
  }

  /* Grid elementlarini 1 ta ustunga keltirish */
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr !important;
    gap: 14px;
  }

  /* Kartalar va paddings */
  .card {
    padding: 16px;
    border-radius: 10px;
  }

  /* O'quv yo'li qatorlari (16-haftalik yo'l) */
  .path-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
  }
  .path-row > div:nth-child(3) {
    width: 100% !important;
  }
  .path-week {
    width: auto;
    flex: unset;
    font-weight: 700;
    color: var(--teal);
  }

  /* Mashg'ulot 5 bosqich navigatsiyasi (Scrollable tabs) */
  .steps-nav {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 6px;
    padding-bottom: 6px;
    margin-bottom: 16px;
    scrollbar-width: none;
  }
  .steps-nav::-webkit-scrollbar {
    display: none;
  }
  .step-tab {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 9px 13px;
    font-size: 12px;
  }

  /* Modallar mobil moslashuvi */
  .modal-overlay > div {
    width: 95% !important;
    max-width: 95% !important;
    padding: 16px 14px !important;
    max-height: 94vh !important;
    border-radius: 12px !important;
  }

  /* Slayd modal ko'rinishi */
  #viewPresentationModal .modal-overlay > div,
  #studentSlideModal .modal-overlay > div,
  #stSlideCanvas,
  div[id*="SlideModal"] {
    padding: 12px !important;
  }
  #stSlideCanvas {
    padding: 16px 14px !important;
    min-height: 220px !important;
  }
  #stSlideTitle, #presSlideTitle {
    font-size: 19px !important;
    margin-bottom: 12px !important;
  }
  #stSlideBullets, #presSlideBullets {
    font-size: 14px !important;
    padding-left: 18px !important;
  }

  /* Katta jadvallar uchun gorizontal skroll */
  table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  /* Tugmalar va touch targets */
  .btn-primary, button {
    touch-action: manipulation;
  }

  /* Textarea editor mobil ko'rinishi */
  textarea.task-editor {
    min-height: 180px;
    font-size: 14px;
    padding: 12px;
  }

  /* Fikr-mulohaza itemlari */
  .fb-item {
    padding: 14px 14px;
  }
}

/* Kichik smartfonlar (<= 480px) */
@media (max-width: 480px) {
  .page-title {
    font-size: 20px;
  }
  .top-bar > div:last-child {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px !important;
  }
  .top-bar > div:last-child > .lang-selector-wrap {
    grid-column: span 2;
    justify-content: center;
  }
  .top-bar > div:last-child > #userProfileArea {
    grid-column: span 2;
    justify-content: stretch;
  }
  #btnLoginLogout {
    width: 100%;
    justify-content: center;
  }
  #btnLowBandwidth, #btnConsentModal, #btnTopApiDocs, #aiStatusBadge, #btnWifiShare, #btnToggleTheme {
    font-size: 11.5px !important;
    padding: 6px 8px !important;
    justify-content: center;
  }
}