/*
  Dizayn qatlami — style.css dan KEYIN yuklanadi va uning ustidan yozadi.

  Uslub: och lavanda fon ustida nozik katak to'r (test varaqasi kabi) va
  yumshoq shaftoli/lavanda nurlar; oq, katta radiusli kartalar; to'q
  siyoh-ko'k asosiy blok (hero); siyoh rangli "pill" tugmalar; pastda
  suzuvchi menyu, o'rtada ko'tarilgan sariq tugma.
  Telegram qorong'i rejimida — siyoh fon, xuddi shu urg'ular.
*/

:root {
  --color-bg: #f2f2fa;
  --color-surface: #ffffff;
  --color-primary: #4353d8;
  --color-primary-dark: #2f3cb5;
  --color-accent: #ff9b73;
  --color-text: #151b3d;
  --color-text-muted: #6b7193;
  --color-border: #e6e7f2;

  --ink: #151b3d;
  --ink-text: #ffffff;
  --sun: #ffd44d;
  --sun-deep: #f2b705;
  --peach: #ffe0d1;
  --peach-strong: #ffbfa3;
  --lilac: #e4e6ff;
  --lilac-strong: #c8ccfb;
  --mint: #d5f4e5;
  --sky: #d9edff;
  --tile-text: #151b3d;
  --grid-line: rgba(90, 98, 170, 0.075);
  --glow-1: rgba(255, 190, 160, 0.5);
  --glow-2: rgba(190, 196, 255, 0.5);

  --btn-bg: #151b3d;
  --btn-fg: #ffffff;

  --shadow-sm: 0 6px 18px -10px rgba(30, 36, 90, 0.22);
  --shadow-md: 0 16px 34px -16px rgba(30, 36, 90, 0.32);
  --radius-sm: 16px;
  --radius-md: 22px;
  --radius-lg: 28px;

  --font-main: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #0d1024;
  --color-surface: #171b37;
  --color-primary: #9aa5ff;
  --color-primary-dark: #7c88f5;
  --color-text: #eef0ff;
  --color-text-muted: #a2a7c7;
  --color-border: #262b4f;

  --ink: #232a5c;
  --peach: #3a2a33;
  --peach-strong: #5a3a3a;
  --lilac: #262b55;
  --lilac-strong: #343b74;
  --mint: #1d3a35;
  --sky: #1d3150;
  --tile-text: #eef0ff;
  --grid-line: rgba(160, 168, 230, 0.06);
  --glow-1: rgba(255, 150, 120, 0.14);
  --glow-2: rgba(130, 140, 255, 0.18);

  --btn-bg: #ffd44d;
  --btn-fg: #151b3d;

  --shadow-sm: 0 6px 18px -10px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 16px 34px -16px rgba(0, 0, 0, 0.7);
}

/* ---------- Fon (katak to'r) va tipografika ---------- */

body,
[data-theme="dark"] body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    radial-gradient(circle at 0% 0%, var(--glow-1), transparent 42%),
    radial-gradient(circle at 100% 30%, var(--glow-2), transparent 45%);
  background-size: 20px 20px, 20px 20px, 100% 100%, 100% 100%;
  background-attachment: fixed;
  animation: none;
}

h1, h2, h3 {
  letter-spacing: -0.01em;
}

h1 {
  font-size: 28px;
  font-weight: 900;
}

h2 {
  font-size: 23px;
  font-weight: 900;
}

h3 {
  font-size: 17px;
  font-weight: 800;
}

.subtitle {
  font-weight: 600;
}

/* ---------- Kartalar ---------- */

.card,
.panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .card,
[data-theme="dark"] .panel {
  border-color: transparent;
}

.card-icon {
  border-radius: 18px;
  background: var(--lilac);
  color: var(--color-primary);
}

.role-card:nth-of-type(3n + 2) .card-icon {
  background: var(--peach);
  color: #e0663f;
}

.role-card:nth-of-type(3n) .card-icon {
  background: #fff1c2;
  color: #b88400;
}

[data-theme="dark"] .role-card:nth-of-type(3n) .card-icon {
  background: #3b3420;
  color: var(--sun);
}

.role-card h3 {
  letter-spacing: 0.02em;
}

/* Rangli kartalar (pastel) */
.tone-peach {
  background: linear-gradient(150deg, var(--peach), var(--peach-strong));
  border-color: transparent;
}

.tone-lilac {
  background: linear-gradient(150deg, var(--lilac), var(--lilac-strong));
  border-color: transparent;
}

.tone-peach,
.tone-lilac {
  color: var(--tile-text);
}

.tone-peach p,
.tone-lilac p {
  color: var(--tile-text);
  opacity: 0.8;
}

/* ---------- Tugmalar ---------- */

.btn {
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 800;
  letter-spacing: 0.01em;
  box-shadow: 0 10px 22px -14px rgba(21, 27, 61, 0.7);
}

.btn-ghost {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  box-shadow: none;
}

.btn-sun {
  background: var(--sun);
  color: #151b3d;
}

.btn-danger {
  border-radius: 999px;
}

.back-button {
  width: 42px;
  height: 42px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  font-size: 19px;
  font-weight: 800;
}

.page-header {
  gap: 12px;
}

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

.share-pill,
.icon-button {
  border-radius: 999px;
}

/* ---------- Maydonlar ---------- */

.input,
textarea,
select {
  border-radius: 18px;
  border: 1.5px solid var(--color-border);
  font-family: var(--font-main);
  font-weight: 600;
}

.input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(67, 83, 216, 0.14);
}

/* ---------- Statistik plitkalar (pastel) ---------- */

.stat-tile {
  border: 0;
  border-radius: var(--radius-md);
  color: var(--tile-text);
  font-weight: 700;
  background: var(--lilac);
}

.stats-grid .stat-tile:nth-child(4n + 1) { background: #fff1c2 }
.stats-grid .stat-tile:nth-child(4n + 2) { background: var(--mint) }
.stats-grid .stat-tile:nth-child(4n + 3) { background: var(--peach) }
.stats-grid .stat-tile:nth-child(4n + 4) { background: var(--sky) }

[data-theme="dark"] .stats-grid .stat-tile:nth-child(4n + 1) { background: #3b3420 }

.stat-tile .stat-value {
  font-size: 26px;
  font-weight: 900;
  color: var(--tile-text);
}

/* ---------- Tablar — segmentli boshqaruv ---------- */

.tabs {
  gap: 4px;
  padding: 5px;
  border: 0;
  border-radius: 999px;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.tab {
  border: 0;
  border-radius: 999px;
  padding: 10px 8px;
  font-weight: 800;
}

.tab.active {
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 0;
}

.filter-chip,
.subject-chip,
.badge {
  border-radius: 999px;
}

.badge {
  font-weight: 800;
}

/* ---------- Bildirishnoma, oyna, xabar ---------- */

.notice {
  border-radius: var(--radius-md);
}

.sheet {
  border-radius: 30px 30px 0 0;
  background: var(--color-surface);
}

.toast {
  border-radius: 999px;
  background: var(--ink);
  color: var(--ink-text);
  font-weight: 700;
}

/* ---------- Pastki menyu — suzuvchi, o'rtada ko'tarilgan tugma ---------- */

.bottom-nav {
  left: 14px;
  right: 14px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  max-width: 492px;
  height: 68px;
  padding: 0 8px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  align-items: stretch;
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: var(--color-surface);
  overflow: visible;
  /* Menyu ostidan sahifa ko'rinib qolmasin: pastga va yonlarga fon rangida "yopqich" */
  box-shadow:
    0 14px 30px -14px rgba(21, 27, 61, 0.35),
    0 24px 0 14px var(--color-bg);
}

.nav-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  padding: 0 0 10px;
  font-size: 11.5px;
  font-weight: 800;
  color: var(--color-text-muted);
  background: none;
  border-radius: 18px;
}

.nav-item .nav-icon {
  width: 46px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  font-size: 18px;
  line-height: 1;
  transition: background-color 0.15s ease, color 0.15s ease;
}

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

.nav-item.active {
  color: var(--color-text);
  background: none;
}

.nav-item.active .nav-icon {
  color: var(--color-text);
  background: var(--peach);
}

/* O'rtadagi "Yaratish": ikonka menyu ustiga chiqadi, yozuv boshqalari bilan bir qatorda */
/* Ikonka joyi bo'sh qoladi — yozuv boshqalari bilan bir chiziqda */
.nav-item[data-nav="create"]::after {
  content: "";
  order: -1;
  height: 30px;
}

.nav-item[data-nav="create"] .nav-icon {
  position: absolute;
  top: -24px;
  left: 50%;
  width: 56px;
  height: 56px;
  margin-left: -28px;
  border-radius: 50%;
  color: #151b3d;
  background: linear-gradient(160deg, #ffe17a, var(--sun) 50%, var(--sun-deep));
  box-shadow:
    0 10px 20px -8px rgba(242, 183, 5, 0.7),
    0 0 0 4px var(--color-surface);
}

.nav-item[data-nav="create"] .nav-icon svg {
  width: 26px;
  height: 26px;
  stroke-width: 2.6;
}

.nav-item[data-nav="create"].active .nav-icon {
  background: linear-gradient(160deg, #ffe17a, var(--sun) 50%, var(--sun-deep));
}

.nav-item:active .nav-icon {
  transform: scale(0.94);
}

.nav-item[data-nav="create"]:active .nav-icon {
  transform: scale(0.94);
}

/* Suzuvchi menyu (12 + 68 px), uning fon yopqichi (14 px) va ko'tarilgan "+" tugmasi — eng pastdagi
   tugma (masalan "Savol statistikasi") menyu ostida qolmay, uning ustiga chiqa olsin */
#app {
  padding-bottom: calc(150px + env(safe-area-inset-bottom) + var(--keyboard-height, 0px));
}

/* ---------- Asosiy blok (hero) — o'qituvchi va o'quvchi bosh sahifasi ---------- */

.hero-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 14px;
  margin-bottom: 14px;
  padding: 18px 16px 16px;
  border-radius: 30px;
  background: var(--ink);
  color: var(--ink-text);
  box-shadow: 0 22px 40px -22px rgba(21, 27, 61, 0.8);
}

.hero-card::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -70px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: rgba(150, 160, 255, 0.16);
  pointer-events: none;
}

.hero-card > * {
  position: relative;
  z-index: 1;
}

.hero-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-avatar {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 900;
  font-size: 18px;
  color: #ffffff;
  background: linear-gradient(145deg, #6fc3ff, #3b82f6);
  border: 3px solid rgba(255, 255, 255, 0.9);
}

.hero-who {
  flex: 1;
  min-width: 0;
  display: grid;
  gap: 4px;
}

.hero-hello {
  font-size: 20px;
  font-weight: 900;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
}

.hero-chip.is-sun {
  background: var(--sun);
  color: #151b3d;
}

.hero-edit {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  font-size: 16px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  cursor: pointer;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.hero-stat {
  display: grid;
  justify-items: center;
  gap: 2px;
  padding: 12px 4px 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.09);
  text-align: center;
}

.hero-stat b {
  font-size: 22px;
  font-weight: 900;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.hero-stat small {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.72);
}

.hero-stat.is-sun {
  background: rgba(255, 212, 77, 0.2);
  box-shadow: inset 0 0 0 1.5px rgba(255, 212, 77, 0.55);
}

.hero-stat.is-sun b {
  color: var(--sun);
}

.hero-card .btn-sun {
  margin: 0;
}

/* Kartadagi sarlavha qatori: belgi + nom */
.card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 16px;
}

.card-title-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 18px;
}

[data-theme="dark"] .card-title-icon {
  background: rgba(255, 255, 255, 0.1);
}

/* Karta ichidagi yonma-yon tugmalar — ixcham */
.contact-actions .btn {
  padding: 11px 12px;
  font-size: 14px;
}

@media (max-width: 360px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Ichki sahifalar ---------- */

/* Asosiy karta ichidagi yorliqlar (test turi va holati) */
.hero-card .badge {
  margin-left: 0;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
}

.hero-card .test-blocked {
  margin: 0;
  color: var(--sun);
}

/* Hero ichidagi oq bloklar (kanallar, to'lov) — o'z rangida qoladi */
.hero-light {
  display: grid;
  gap: 10px;
}

.hero-light .channel-rows,
.hero-light .panel,
.hero-light .notice {
  color: var(--color-text);
}

/* To'q kartada kanal qatorlari oq fonda — kanal nomi ko'rinsin */
.hero-light .channel-rows {
  margin: 0;
  background: var(--color-surface);
}

.hero-light .channel-rows .subtitle {
  color: var(--color-text-muted);
}

.hero-light .subtitle {
  color: rgba(255, 255, 255, 0.72);
}

.hero-light .panel .subtitle,
.hero-light .notice .subtitle {
  color: var(--color-text-muted);
}

.hero-light .btn + .btn,
.hero-light .btn {
  margin-top: 0;
}

/* Test kodi — yirik sariq yorliq */
.hero-code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
}

.hero-code-row .copy-code {
  padding: 6px 14px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: #151b3d;
  background: var(--sun);
  border: 0;
}

.hero-code-row .copy-code svg {
  width: 16px;
  height: 16px;
}

.hero-meta {
  display: grid;
  gap: 4px;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.75);
}

.hero-meta b {
  color: #ffffff;
}

/* Test ishlash: A/B/C/D — dumaloq, tanlangani to'q */
.sheet-option {
  width: 44px;
  height: 44px;
  max-width: 44px;
  flex: 0 0 44px;
  border-radius: 50%;
  font-weight: 900;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
}

.sheet-option.selected {
  color: var(--btn-fg);
  background: var(--btn-bg);
  border-color: var(--btn-bg);
  box-shadow: 0 6px 14px -8px rgba(21, 27, 61, 0.8);
}

.sheet-options {
  gap: 8px;
}

/* Natijalar sahifasidagi "PDF hisobot" kabi katta tugmalar — biroz yengilroq yozuv */
.btn {
  text-transform: none;
}

/* Ilova doim yorug' — brauzerning o'z elementlari (sana, ro'yxat) ham qorong'i bo'lmasin */
:root {
  color-scheme: light;
}

/* ========== Sahifa animatsiyalari ==========
   Yangi sahifa ochilganda bloklar ketma-ket (har biri 45 ms keyin) pastdan
   ko'tarilib chiqadi. "backwards" — animatsiya tugagach transform qolmaydi,
   shuning uchun ichidagi fixed elementlar (menyu, oyna) joyidan siljimaydi. */
.page.page-enter {
  animation: none;
}

.page-enter > * {
  animation: page-rise 0.46s cubic-bezier(0.22, 1, 0.36, 1) backwards;
  animation-delay: calc(var(--i, 0) * 45ms);
}

@keyframes page-rise {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Bosilganda — yumshoq "prujina": kichrayib, sakrab qaytadi */
.btn,
.card,
.tab,
.hero-stat,
.stat-tile {
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, background-color 0.2s ease,
    color 0.2s ease;
}

.btn:active,
.tab:active,
.hero-stat:active,
.stat-tile:active {
  transform: scale(0.95);
  transition-duration: 0.08s;
}

.card:active {
  transform: scale(0.975);
  transition-duration: 0.08s;
}

/* Pastki menyu: tanlangan bo'lim ikonkasi bir sakraydi */
.nav-item.active .nav-icon {
  animation: nav-pop 0.42s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes nav-pop {
  0% { transform: scale(0.8); }
  60% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .page-enter > *,
  .nav-item.active .nav-icon {
    animation: none !important;
  }

  .btn,
  .card,
  .tab,
  .hero-stat,
  .stat-tile {
    transition: none;
  }
}

/* O'qituvchi profilidagi Telegram rasmi */
.hero-avatar.has-photo {
  overflow: hidden;
  background: #dbe7f5;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Javoblar varaqasini skanerlash: o'qilgan javoblar va tuzatish */
.scan-name-image {
  display: block;
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: #ffffff;
}

.scan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(156px, 1fr));
  gap: 6px 8px;
}

.scan-row {
  display: grid;
  grid-template-columns: 26px auto;
  align-items: center;
  gap: 2px 4px;
  padding: 4px 6px;
  border-radius: 10px;
}

.scan-row.is-flagged {
  background: #fff4cc;
  box-shadow: inset 0 0 0 2px #f2c94c;
}

.scan-label {
  font-weight: 800;
  font-size: 13px;
  text-align: right;
}

.scan-options {
  display: flex;
  gap: 4px;
}

.scan-option {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  padding: 0;
}

.scan-option.selected {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.scan-note {
  grid-column: 1 / -1;
  color: #a16207;
  font-weight: 700;
}

/* O'quvchining varaqdagi raqami (#7) */
.student-number {
  display: inline-block;
  min-width: 28px;
  padding: 1px 6px;
  margin-right: 2px;
  border-radius: 8px;
  background: var(--sun);
  color: var(--ink-text, #1b2452);
  font-size: 12px;
  text-align: center;
}

/* Variantlar */
.variant-letter {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--sun);
  color: var(--ink-text, #1b2452);
  font-size: 20px;
  font-weight: 900;
}

.variant-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 4px 10px;
}

.variant-text-row {
  grid-template-columns: 34px 1fr;
}

/* Jonli skaner: kamera ko'rinishi va topilgan burchaklar */
.live-scan {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  background: #0f172a;
  aspect-ratio: 3 / 4;
}

.live-scan video,
.live-scan canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.live-status {
  margin: 12px 4px;
  text-align: center;
  font-weight: 700;
}

/* Skanerlash tugmasidan keyingi navbat joyi bo'sh bo'lsa ham tugmalar yopishmasin */
#scan-queue-slot + .btn,
#scan-queue-slot .btn {
  margin-top: 10px;
}

/* Imtihonga sinf biriktirish */
.attach-class {
  align-items: center;
  gap: 12px;
}

.attach-class input {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.attach-class.is-attached {
  opacity: 0.7;
}