/* ==========================================================================
   landing.css — faqat marketing sahifasi (D3, ADR-037; yangi «shisha» dizayn — ADR-156)
   Komponentlar `components.css` da; bu yerda landing bo'limlarining karkasi.
   Ranglar — `tokens.css` dagi `--land-*` (dark'da o'zi almashadi).
   ========================================================================== */

body.l-page {
  background: var(--land-page);
  color: var(--land-ink);
  overflow-x: hidden;
}

/* --- Sarlavha: logotip + nom · menyu · mavzu · Kirish -------------------------------- */
.l-header {
  position: sticky;
  top: var(--space-3);
  z-index: var(--z-sticky);
  width: min(1240px, calc(100% - var(--space-6)));
  margin: var(--space-3) auto 0;
  background: var(--land-glass-strong);
  border: 1px solid var(--land-glass-line);
  border-radius: 22px;
  box-shadow: 0 12px 40px color-mix(in srgb, var(--land-blue) 12%, transparent);
  -webkit-backdrop-filter: blur(24px) saturate(170%);
  backdrop-filter: blur(24px) saturate(170%);
}
.l-header__bar {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-3) var(--space-4);
}

.l-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--land-ink);
  min-width: 0;
}
.l-brand:hover { text-decoration: none; }
/* Logotip: yuklangan rasm yoki standart belgi — ikkalasi bir xil yumaloq kvadratda. */
.l-brand__logo,
.l-brand__mark {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 15px;
}
.l-brand__logo {
  object-fit: contain;
  padding: 3px;
  background: var(--c-neutral-0);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--land-blue) 22%, transparent);
}
.l-brand__mark {
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--land-blue-deep), var(--land-cyan));
  color: var(--c-neutral-0);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--land-blue) 30%, transparent);
}
.l-brand__mark .icon { width: 24px; height: 24px; }
.l-brand__name { display: flex; flex-direction: column; min-width: 0; line-height: 1.05; }
.l-brand__name strong {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.l-brand__name small {
  margin-top: 4px;
  color: var(--land-blue);
  font-size: 0.625rem;
  font-weight: var(--weight-bold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.l-nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: center;
  gap: var(--space-5);
}
.l-nav a {
  color: var(--land-ink-soft);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  white-space: nowrap;
}
.l-nav a:hover { color: var(--land-blue); text-decoration: none; }

.l-header__tools { display: flex; align-items: center; gap: var(--space-3); margin-left: auto; }
.l-login {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 20px;
  border-radius: 15px;
  background: var(--land-grad);
  box-shadow: 0 12px 24px color-mix(in srgb, var(--land-blue) 25%, transparent);
  color: var(--c-neutral-0);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.l-login:hover { transform: translateY(-2px); text-decoration: none; color: var(--c-neutral-0); }
.l-login:focus-visible { outline: 3px solid var(--land-cyan); outline-offset: 2px; }
.l-burger {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--land-line);
  border-radius: 12px;
  background: var(--land-glass-strong);
  color: var(--land-ink);
  cursor: pointer;
}

/* --- Umumiy bo'lim ------------------------------------------------------------------- */
.l-section { padding: var(--space-12) var(--space-6); }
.l-section--tint { background: transparent; border: 0; }
.l-section--tight { padding-block: var(--space-6); }
.l-inner { width: 100%; max-width: 1180px; margin-inline: auto; }
.l-section__kicker {
  display: block;
  color: var(--land-blue);
  font-size: var(--text-2xs);
  font-weight: var(--weight-bold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.l-section__title {
  margin: var(--space-2) 0 var(--space-2);
  color: var(--land-ink);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: var(--weight-bold);
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.l-section__lead {
  max-width: var(--prose-max);
  margin-bottom: var(--space-8);
  color: var(--land-ink-soft);
}

/* «Shisha» yuza: yarim shaffof, xiralashgan fon. */
.l-glass {
  background: var(--land-glass);
  border: 1px solid var(--land-glass-line);
  box-shadow: var(--land-shadow);
  -webkit-backdrop-filter: blur(22px) saturate(155%);
  backdrop-filter: blur(22px) saturate(155%);
}

/* --- Birinchi ekran ---------------------------------------------------------------------- */
.l-hero2 {
  position: relative;
  padding: var(--space-12) var(--space-6) var(--space-6);
  isolation: isolate;
}
.l-hero2::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 76% 30%, var(--land-glow-a), transparent 28%),
    radial-gradient(circle at 25% 12%, var(--land-glow-b), transparent 35%);
}
.l-hero2__grid {
  display: grid;
  grid-template-columns: 1fr 1.02fr;
  align-items: center;
  gap: var(--space-10);
  max-width: 1180px;
  margin: 0 auto;
}
.l-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 14px;
  border: 1px solid var(--land-line);
  border-radius: var(--radius-pill);
  background: var(--land-glass);
  color: var(--land-blue);
  font-size: var(--text-2xs);
  font-weight: var(--weight-bold);
}
.l-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--land-cyan);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--land-cyan) 18%, transparent);
}

/* Almashib turadigan sarlavha: ikki jumla bir katakda, CSS bilan navbatma-navbat ko'rinadi.
   ⚠️ Skriptsiz ishlaydi; «harakatni kamaytirish» yoqilsa faqat birinchisi turadi. */
.l-rotor {
  position: relative;
  display: grid;
  margin: var(--space-5) 0 var(--space-4);
  max-width: 640px;
  color: var(--land-ink);
  font-size: clamp(2.375rem, 5.1vw, 4.125rem);
  font-weight: var(--weight-bold);
  letter-spacing: -0.045em;
  line-height: 1.04;
}
.l-rotor__line {
  grid-area: 1 / 1;
  animation: l-rotor 12s ease-in-out infinite;
}
.l-rotor__line + .l-rotor__line { animation-delay: -6s; }
.l-grad {
  background: var(--land-grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@keyframes l-rotor {
  0%, 4% { opacity: 0; transform: translateY(14px); }
  10%, 46% { opacity: 1; transform: translateY(0); }
  52%, 100% { opacity: 0; transform: translateY(-14px); }
}

.l-hero2__lead {
  max-width: 510px;
  margin: 0 0 var(--space-6);
  color: var(--land-ink-soft);
  font-size: var(--text-md);
  line-height: 1.75;
}
.l-hero2__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.l-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 13px 20px;
  border-radius: 15px;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.l-btn:hover { transform: translateY(-2px); text-decoration: none; }
.l-btn:focus-visible { outline: 3px solid var(--land-cyan); outline-offset: 2px; }
.l-btn--primary {
  background: var(--land-grad);
  box-shadow: 0 12px 24px color-mix(in srgb, var(--land-blue) 25%, transparent);
  color: var(--c-neutral-0);
}
.l-btn--primary:hover { color: var(--c-neutral-0); }
.l-btn--ghost {
  background: var(--land-glass);
  border: 1px solid var(--land-glass-line);
  color: var(--land-blue);
}
.l-btn--white { background: var(--c-neutral-0); color: var(--land-blue-deep); }
.l-hero2__note { margin: var(--space-6) 0 0; color: var(--land-ink-soft); font-size: var(--text-xs); }

/* O'ngdagi ko'rinish: markaz lavhalari slayderi (haqiqiy rasmlar) + suzuvchi kartochkalar. */
.l-hero2__visual { position: relative; min-height: 480px; }
.l-float {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 14px 17px;
  border: 1px solid var(--land-glass-line);
  border-radius: 20px;
  background: var(--land-glass-strong);
  box-shadow: 0 18px 40px color-mix(in srgb, var(--land-blue) 16%, transparent);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  color: var(--land-ink);
  animation: l-bob 5s ease-in-out infinite;
}
.l-float:hover { text-decoration: none; }
.l-float__icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--land-chip);
  color: var(--land-blue);
}
.l-float b { display: block; font-size: var(--text-md); letter-spacing: -0.02em; line-height: 1.2; }
.l-float small { color: var(--land-ink-soft); font-size: var(--text-2xs); font-weight: var(--weight-semibold); }
.l-float--a { top: 34px; left: 0; }
.l-float--b { right: -4px; bottom: 0; animation-delay: -2.5s; }
@keyframes l-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.l-slider {
  position: absolute;
  inset: 8px 15px 28px 28px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--land-glass-line);
  border-radius: 36px;
  background: var(--c-accent-800);
  box-shadow: 0 35px 70px color-mix(in srgb, var(--land-blue) 18%, transparent);
  transform: rotate(1deg);
}
.l-slider__viewport { position: relative; flex: 1 1 auto; min-height: 0; }
.l-slider__track {
  position: absolute;
  inset: 0;
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}
.l-slider__track::-webkit-scrollbar { display: none; }
.l-slider__track:focus-visible { outline: 3px solid var(--c-neutral-0); outline-offset: -6px; }
.l-slide { position: relative; flex: 0 0 100%; margin: 0; scroll-snap-align: start; scroll-snap-stop: always; }
.l-slide__img { display: block; width: 100%; height: 100%; object-fit: cover; background: var(--c-accent-900); }
.l-slide__caption {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  max-width: calc(100% - 2 * var(--space-4));
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--c-neutral-950) 55%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--c-neutral-0);
  font-size: var(--text-xs);
}
.l-slider__scrim {
  position: absolute;
  inset: 40% 0 0;
  pointer-events: none;
  background: linear-gradient(transparent, color-mix(in srgb, var(--c-accent-950) 70%, transparent));
}
.l-slider__arrow {
  position: absolute;
  top: 45%;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid color-mix(in srgb, var(--c-neutral-0) 50%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--c-neutral-950) 40%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--c-neutral-0);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.l-slider__arrow:hover { background: color-mix(in srgb, var(--c-neutral-950) 70%, transparent); transform: scale(1.06); }
.l-slider__arrow:focus-visible { outline: 3px solid var(--c-neutral-0); outline-offset: 2px; }
.l-slider__arrow--prev { left: var(--space-3); }
.l-slider__arrow--next { right: var(--space-3); }
.l-slider__dots {
  flex: 0 0 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--c-accent-950);
}
.l-dot {
  position: relative;
  width: 9px;
  height: 9px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--c-neutral-0) 35%, transparent);
  cursor: pointer;
  transition: width 0.25s ease, background 0.25s ease;
}
.l-dot::after { content: ""; position: absolute; inset: -12px -5px; }
.l-dot.is-active { width: 24px; background: var(--land-cyan); }
.l-dot:focus-visible { outline: 2px solid var(--c-neutral-0); outline-offset: 3px; }

/* Rasm yo'q — gradient karta (bo'sh ramka chizilmaydi). */
.l-slider--plain { background: var(--land-grad); }
.l-slider__plain {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-1);
  padding: var(--space-8);
  color: var(--c-neutral-0);
}
.l-slider__plain strong { font-size: var(--text-xl); letter-spacing: -0.02em; }
.l-slider__plain span { font-size: var(--text-xs); opacity: 0.9; }

/* --- Bilimingizni sinab ko'ring: fanlar «suzib» turadi (foydalanuvchi: turli joylarda, har xil
   shaklda, biroz qimirlab). Chiqish bosqichlari: fan → daraja → test (`quiz:play`). ---- */
.l-quizband { padding: var(--space-4) var(--space-6) var(--space-2); }
.l-quizband__box {
  position: relative;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  align-items: stretch;
  gap: var(--space-4);
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-5);
  overflow: hidden;
  border-radius: 28px;
}
.l-quizband__head { display: flex; align-items: center; gap: var(--space-3); }
.l-quizband__icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  background: var(--land-chip);
  font-size: 28px;
}
.l-quizband__title {
  margin: 0;
  color: var(--land-ink);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.l-quizband__lead { margin: var(--space-1) 0 0; color: var(--land-ink-soft); font-size: var(--text-xs); }

.l-subjects { position: relative; min-height: 190px; }
.l-sub {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 11px 18px 11px 12px;
  border: 1px solid var(--land-glass-line);
  border-radius: var(--radius-pill);
  background: var(--land-glass-strong);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--land-blue) 14%, transparent);
  color: var(--land-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  white-space: nowrap;
  cursor: pointer;
  animation: l-drift 6s ease-in-out infinite;
  transition: box-shadow 0.2s ease, background 0.2s ease;
}
.l-sub:hover,
.l-sub[aria-expanded="true"] {
  background: var(--land-grad);
  box-shadow: 0 16px 32px color-mix(in srgb, var(--land-blue) 30%, transparent);
  color: var(--c-neutral-0);
}
.l-sub:focus-visible { outline: 3px solid var(--land-cyan); outline-offset: 3px; }
.l-sub__flag {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border: 2px solid var(--c-neutral-0);
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 6px color-mix(in srgb, var(--c-neutral-950) 22%, transparent);
}
.l-sub__emoji {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--land-chip);
  font-size: 17px;
}
/* Testi hali yo'q fan: biroz xira, chiziqli chegara (matn chipni kengaytirmasin — chegaradan chiqmaydi). */
.l-sub--soon { border-style: dashed; opacity: 0.82; }

/* Joylashuv: ikki qator, har xil balandlik, shakl va og'ish — chegaradan chiqmaydi. */
.l-sub:nth-child(1) { top: 6px; left: 1%; border-radius: 999px; --tilt: -2deg; animation-delay: 0s; }
.l-sub:nth-child(2) { top: 100px; left: 13%; border-radius: 22px 22px 22px 6px; --tilt: 1.5deg; animation-delay: -1.4s; animation-duration: 7s; }
.l-sub:nth-child(3) { top: 14px; left: 27%; border-radius: 22px 6px 22px 22px; --tilt: 2deg; animation-delay: -2.6s; animation-duration: 5.5s; }
.l-sub:nth-child(4) { top: 108px; left: 40%; border-radius: 999px; --tilt: -1.5deg; animation-delay: -0.8s; animation-duration: 6.5s; }
.l-sub:nth-child(5) { top: 4px; left: 53%; border-radius: 6px 22px 22px 22px; --tilt: -2.5deg; animation-delay: -3.3s; }
.l-sub:nth-child(6) { top: 98px; left: 65%; border-radius: 22px; --tilt: 2deg; animation-delay: -4.1s; animation-duration: 7.5s; }
.l-sub:nth-child(7) { top: 16px; left: 77%; border-radius: 999px 999px 6px 999px; --tilt: -1deg; animation-delay: -2s; animation-duration: 5s; }
.l-sub:nth-child(8) { top: 56px; left: 40%; border-radius: 999px; --tilt: 1deg; animation-delay: -1s; }
@keyframes l-drift {
  0%, 100% { transform: translate(0, 0) rotate(var(--tilt, 0deg)); }
  33% { transform: translate(5px, -7px) rotate(calc(var(--tilt, 0deg) * -0.5)); }
  66% { transform: translate(-4px, 4px) rotate(var(--tilt, 0deg)); }
}

/* Daraja paneli: tanlangan fan uchun (JS bilan bittasi ko'rinadi; JS'siz hammasi turadi). */
.l-levels {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--land-line);
}
.l-levels[hidden] { display: none; }
.l-levels__set { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.l-levels__set[hidden] { display: none; }
.l-levels__name { color: var(--land-ink); font-size: var(--text-sm); font-weight: var(--weight-bold); }
.l-levels__soon { color: var(--land-ink-soft); font-size: var(--text-sm); }
.l-level {
  padding: 9px 18px;
  border: 1px solid var(--land-line);
  border-radius: 14px;
  background: var(--land-glass-strong);
  color: var(--land-blue);
  font-weight: var(--weight-bold);
  transition: transform 0.12s ease, background 0.12s ease;
}
.l-level:hover { transform: translateY(-2px); text-decoration: none; background: var(--land-chip); }
.l-level:focus-visible { outline: 3px solid var(--land-cyan); outline-offset: 2px; }
.l-level.is-all { background: var(--land-grad); border-color: transparent; color: var(--c-neutral-0); }

/* --- Ijtimoiy tarmoqlar --------------------------------------------------- */
.l-social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.l-social__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  /* 44px — teginish nishoni uchun tavsiya etilgan eng kichik o'lcham. */
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  color: var(--text-default);
  font-size: var(--text-sm);
}
.l-social__item:hover {
  text-decoration: none;
  border-color: var(--border-accent);
  color: var(--text-strong);
}

/* --- Filiallar ------------------------------------------------------------ */
.l-branches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.l-branch {
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.l-branch__name {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
  font-weight: var(--weight-semibold);
  color: var(--text-strong);
}
.l-branch__tag {
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: var(--text-2xs);
  font-weight: var(--weight-regular);
}
.l-branch__line {
  display: block;
  margin: 0 0 2px;
  color: var(--text-muted);
  font-size: var(--text-sm);
}
a.l-branch__line:hover { color: var(--text-strong); }

/* --- Bepul materiallar (OM-2) ---------------------------------------------
   Foydalanuvchi talabi: ochiq saytda bepul kitoblar va testlar bo'lsin,
   kirish butunlay ochiq.

   ⭐ Har kartochkada **manba** ko'rinadi — «bu kitob qayerdan olingan?»
   degan savolga javob sahifaning o'zida turadi.
   ------------------------------------------------------------------------ */

.l-materials {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.l-material {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

.l-material:hover,
.l-material:focus-visible {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-2);
}

.l-material__kind {
  align-self: flex-start;
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--accent-soft-text);
  background: var(--accent-soft-bg);
  border-radius: var(--radius-pill);
  padding: 2px var(--space-2);
  margin-bottom: var(--space-1);
}

.l-material__title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--text-strong);
  line-height: var(--leading-snug);
}

.l-material__desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-snug);
}

.l-material__meta {
  font-size: var(--text-2xs);
  color: var(--text-subtle);
  margin-top: var(--space-1);
}

/* Manba — ataylab pastda va kichik, lekin **har doim bor**. */
.l-material__source {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-2xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-subtle);
}

.l-materials__more {
  margin-top: var(--space-5);
  font-size: var(--text-sm);
}

/* Fan bo'yicha saralash — havola bilan, JavaScriptsiz. */
.l-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.l-filter {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  color: var(--text-default);
  text-decoration: none;
  background: var(--bg-surface);
}

.l-filter:hover { border-color: var(--border-strong); }

.l-filter.is-active {
  background: var(--accent-bg);
  border-color: var(--accent-bg);
  color: var(--text-inverse);
  font-weight: var(--weight-semibold);
}


/* --- «Oy o'quvchilari» (ADR-155, 2026-10-18) ----------------------------------------------
   Bir qatorda 5 ta kartochka: 2 · MARKAZ O'QUVCHISI · 2. O'rtadagisi balandroq va yuqoriroq.
   Ranglar — faqat tokenlardan (`--tint-*`, `--c-*`); kartochka har doim rangli, shuning uchun
   badge va panel mavzudan qat'i nazar ochiq/to'q qoladi (`--c-neutral-0/950` ataylab).
   Natija va belgi pufakchalari sekin «suzib» turadi — `prefers-reduced-motion` da to'xtaydi. */
.l-stars {
  --star-gap: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  gap: var(--star-gap);
  margin: var(--space-8) 0 0;
  padding: 0;
  list-style: none;
}

.l-star {
  --star-a: var(--c-accent-400);
  --star-b: var(--c-accent-800);
  position: relative;
  display: flex;
  flex: 0 1 calc((100% - 4 * var(--star-gap)) / 5);
  flex-direction: column;
  justify-content: flex-end;
  height: 360px;
  min-width: 0;
  padding: var(--space-3);
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(145deg, var(--star-a), var(--star-b));
  box-shadow: 0 18px 36px color-mix(in srgb, var(--star-b) 30%, transparent);
  color: var(--c-neutral-0);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.l-star:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 46px color-mix(in srgb, var(--star-b) 40%, transparent);
}

.l-star--accent { --star-a: var(--c-accent-400); --star-b: var(--c-accent-800); }
.l-star--sky { --star-a: var(--tint-sky-bar); --star-b: var(--c-accent-700); }
.l-star--emerald {
  --star-a: var(--tint-emerald-bar);
  --star-b: color-mix(in srgb, var(--tint-emerald-bar) 45%, var(--c-neutral-950));
}
.l-star--violet {
  --star-a: var(--tint-violet-bar);
  --star-b: color-mix(in srgb, var(--tint-violet-bar) 45%, var(--c-neutral-950));
}
.l-star--rose {
  --star-a: var(--tint-rose-bar);
  --star-b: color-mix(in srgb, var(--tint-rose-bar) 45%, var(--c-neutral-950));
}
/* Markaz o'quvchisi: «oltin» + balandroq + yuqoriroq (past chegarasi ko'tarilgan). */
.l-star--amber {
  --star-a: var(--tint-amber-bar);
  --star-b: color-mix(in srgb, var(--tint-amber-bar) 40%, var(--c-neutral-950));
}
.l-star--featured {
  height: 450px;
  margin-bottom: var(--space-6);
  box-shadow: 0 28px 52px color-mix(in srgb, var(--tint-amber-bar) 45%, transparent);
}

/* Rasm: ellips shaklida «qirqilgan» (tepasi yumaloq), pastki chetga yopishgan. */
.l-star__photo,
.l-star__initials {
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: 2;
  width: 82%;
  height: 80%;
  transform: translateX(-50%);
  border-radius: 50% 50% 0 0 / 38% 38% 0 0;
}
.l-star__photo { object-fit: cover; object-position: center top; }
.l-star__initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--c-neutral-0) 18%, transparent);
  font-size: 56px;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
}

/* Suzib yuruvchi pufakchalar: natija (chapda) va belgi (o'ngda). */
.l-star__badge {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  max-width: calc(100% - var(--space-5));
  padding: var(--space-2) var(--space-3);
  border-radius: 16px;
  background: color-mix(in srgb, var(--c-neutral-0) 95%, transparent);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--c-neutral-950) 18%, transparent);
  color: var(--c-neutral-900);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: 1.25;
  overflow-wrap: anywhere;
  animation: l-star-float 4s ease-in-out infinite;
}
.l-star__badge--result { top: var(--space-4); left: var(--space-3); }
.l-star__badge--tag {
  top: 96px;
  right: var(--space-3);
  animation-delay: 2s;
}
.l-star--featured .l-star__badge--tag { top: 110px; }

@keyframes l-star-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Pastki ma'lumot paneli. */
.l-star__info {
  position: relative;
  z-index: 3;
  padding: var(--space-3) var(--space-4);
  border: 1px solid color-mix(in srgb, var(--c-neutral-0) 18%, transparent);
  border-radius: 18px;
  background: color-mix(in srgb, var(--c-neutral-950) 72%, transparent);
  backdrop-filter: blur(12px);
}
.l-star__rank {
  display: inline-block;
  margin-bottom: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: 10px;
  background: var(--tint-amber-bar);
  color: var(--c-neutral-950);
  font-size: var(--text-2xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.l-star:not(.l-star--featured) .l-star__rank {
  background: color-mix(in srgb, var(--c-neutral-0) 85%, transparent);
}
.l-star__name {
  margin: 0 0 2px;
  color: var(--c-neutral-0);
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.l-star__meta {
  margin: 0;
  color: var(--c-neutral-300);
  font-size: var(--text-xs);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

/* Planshet: markaz o'quvchisi birinchi qatorda yolg'iz, qolganlar uchtadan.
   ⚠️ Har blokda `.l-star` dan KEYIN `.l-star--featured` turadi: teng spetsiflikda keyingisi yutadi. */
@media (max-width: 1100px) {
  .l-star { flex-basis: calc((100% - 2 * var(--star-gap)) / 3); }
  .l-star--featured {
    order: -1;
    flex-basis: 100%;
    max-width: 380px;
    height: 430px;
    margin-bottom: 0;
  }
}
/* Telefon: ikkitadan. */
@media (max-width: 720px) {
  .l-star { flex-basis: calc((100% - var(--star-gap)) / 2); height: 320px; }
  .l-star--featured { flex-basis: 100%; max-width: 340px; height: 400px; }
  .l-star__badge--tag { top: 84px; }
}
/* Tor telefon: bittadan. */
@media (max-width: 460px) {
  .l-star { flex-basis: 100%; max-width: 340px; }
  .l-star--featured { max-width: 340px; }
}

@media (prefers-reduced-motion: reduce) {
  .l-star__badge { animation: none; }
  .l-star, .l-star:hover { transition: none; transform: none; }
}


/* ==========================================================================
   Yangi dizayn: sonlar · kurslar · imkoniyatlar · aloqa · pastki qism (ADR-156)
   Eski bo'limlar (filial, material, ijtimoiy tarmoq, oy o'quvchilari) yuqorida — bu yerda ularning
   ustiga «shisha» ko'rinishi qo'yiladi.
   ========================================================================== */

/* Sonlar (ishonch tasmasi) — haqiqiy yoki qo'lda kiritilgan raqamlar (OM-5). */
.l-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}
.l-stat {
  padding: var(--space-5) var(--space-3);
  border: 1px solid var(--land-glass-line);
  border-radius: 22px;
  background: var(--land-glass);
  box-shadow: var(--land-shadow);
  text-align: center;
}
.l-stat__value {
  display: block;
  color: var(--land-blue);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}
.l-stat__label {
  color: var(--land-ink-soft);
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* Kurslar: fan bo'yicha shisha kartochkalar, har birida bayroq/belgi. */
.l-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-4);
}
.l-course {
  padding: var(--space-5);
  border: 1px solid var(--land-glass-line);
  border-radius: 23px;
  background: var(--land-glass);
  box-shadow: var(--land-shadow);
  transition: transform 0.2s ease;
}
.l-course:hover { transform: translateY(-5px); }
.l-course__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 17px;
  background: var(--land-chip);
  font-size: 26px;
}
.l-course__icon img {
  width: 34px;
  height: 34px;
  border: 2px solid var(--c-neutral-0);
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 6px color-mix(in srgb, var(--c-neutral-950) 22%, transparent);
}
.l-course__title { margin: var(--space-4) 0 var(--space-2); color: var(--land-ink); font-size: var(--text-lg); letter-spacing: -0.02em; }
.l-course__list { display: grid; gap: var(--space-1); margin: 0 0 var(--space-4); padding: 0; list-style: none; }
.l-course__list li { color: var(--land-ink-soft); font-size: var(--text-sm); }
.l-course__more { color: var(--land-blue); font-size: var(--text-xs); font-weight: var(--weight-bold); }
.l-empty {
  padding: var(--space-8);
  border: 1px dashed var(--land-line);
  border-radius: 23px;
  background: var(--land-glass);
  color: var(--land-ink-soft);
  text-align: center;
}
.l-empty strong { display: block; color: var(--land-ink); }

/* Imkoniyatlar: ikki katta kartochka + platforma xususiyatlari. */
.l-opps { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.l-opp {
  position: relative;
  min-height: 245px;
  padding: var(--space-8);
  overflow: hidden;
  border: 1px solid var(--land-glass-line);
  border-radius: 28px;
}
.l-opp h3 { margin: var(--space-4) 0 var(--space-2); max-width: 370px; font-size: var(--text-xl); letter-spacing: -0.03em; }
.l-opp p { max-width: 430px; margin: 0 0 var(--space-5); font-size: var(--text-sm); line-height: 1.7; }
.l-opp__mark { position: absolute; right: 22px; bottom: -22px; font-size: 120px; line-height: 1; opacity: 0.13; pointer-events: none; }
.l-opp--blue {
  background: linear-gradient(135deg, var(--land-blue-deep), var(--land-blue) 72%, var(--land-cyan));
  box-shadow: 0 25px 55px color-mix(in srgb, var(--land-blue) 22%, transparent);
  color: var(--c-neutral-0);
}
.l-opp--blue h3, .l-opp--blue p { color: var(--c-neutral-0); }
.l-opp--blue .l-eyebrow { background: color-mix(in srgb, var(--c-neutral-0) 14%, transparent); border-color: color-mix(in srgb, var(--c-neutral-0) 30%, transparent); color: var(--c-neutral-0); }
.l-opp--blue .l-eyebrow::before { background: var(--c-neutral-0); box-shadow: none; }
.l-opp--white { background: var(--land-glass-strong); box-shadow: var(--land-shadow); color: var(--land-ink); }
.l-opp--white p { color: var(--land-ink-soft); }
.l-opp--white .l-opp__mark { color: var(--land-blue); }

.l-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: var(--space-4); margin-top: var(--space-6); }
.l-feature {
  padding: var(--space-5);
  border: 1px solid var(--land-glass-line);
  border-radius: 22px;
  background: var(--land-glass);
  box-shadow: var(--land-shadow);
}
.l-feature__icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: var(--space-3);
  border-radius: 14px;
  background: var(--land-chip);
  color: var(--land-blue);
}
.l-feature__title { margin: 0 0 var(--space-1); color: var(--land-ink); font-size: var(--text-md); }
.l-feature__text { margin: 0; color: var(--land-ink-soft); font-size: var(--text-xs); line-height: 1.7; }

/* Eski bo'limlarning shisha ko'rinishi. */
.l-branch, .l-material {
  border-color: var(--land-glass-line);
  border-radius: 23px;
  background: var(--land-glass);
  box-shadow: var(--land-shadow);
  color: var(--land-ink);
}
.l-branch__name, .l-material__title { color: var(--land-ink); }
.l-branch__line, .l-material__desc, .l-material__meta, .l-material__source { color: var(--land-ink-soft); }
.l-material:hover, .l-material:focus-visible { border-color: var(--land-blue); }
.l-material__kind, .l-branch__tag { background: var(--land-chip); color: var(--land-blue); }
.l-social__item { border-color: var(--land-glass-line); background: var(--land-glass); color: var(--land-ink); }
.l-filter { background: var(--land-glass); border-color: var(--land-glass-line); color: var(--land-ink); }
.l-filter.is-active { background: var(--land-blue); border-color: var(--land-blue); color: var(--c-neutral-0); }
.l-materials__more a { color: var(--land-blue); font-weight: var(--weight-bold); }

/* Oy o'quvchilari bo'limi bosh sahifaga yaqinroq (foydalanuvchi: yuqoriga ko'taring). */
#oquvchilar.l-section { padding-top: var(--space-6); }
.l-section__title--stars { margin-top: var(--space-1); }
.l-stars { margin-top: var(--space-6); }

/* Aloqa: gradient «CTA» tasma. */
.l-cta {
  position: relative;
  display: grid;
  gap: var(--space-5);
  padding: var(--space-8);
  overflow: hidden;
  border-radius: 32px;
  background: linear-gradient(115deg, color-mix(in srgb, var(--land-blue-deep) 55%, var(--c-neutral-950)), var(--land-blue-deep) 60%, var(--land-cyan));
  box-shadow: 0 28px 60px color-mix(in srgb, var(--land-blue) 24%, transparent);
  color: var(--c-neutral-0);
}
.l-cta::after {
  content: "";
  position: absolute;
  top: -220px;
  right: 20%;
  width: 350px;
  height: 350px;
  border: 1px solid color-mix(in srgb, var(--c-neutral-0) 18%, transparent);
  border-radius: 50%;
  box-shadow: 0 0 0 30px color-mix(in srgb, var(--c-neutral-0) 4%, transparent), 0 0 0 65px color-mix(in srgb, var(--c-neutral-0) 3%, transparent);
  pointer-events: none;
}
.l-cta > * { position: relative; z-index: 1; }
.l-cta .l-section__title { margin: 0; max-width: 610px; color: var(--c-neutral-0); }
.l-cta .l-section__lead { margin: 0; color: color-mix(in srgb, var(--c-neutral-0) 85%, transparent); }
.l-contact { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-6); }
.l-contact__item { display: flex; align-items: center; gap: var(--space-2); color: var(--c-neutral-0); font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.l-contact__item.muted { color: color-mix(in srgb, var(--c-neutral-0) 82%, transparent); }
.l-cta .l-social { margin-top: 0; }
.l-cta .l-social__item { border-color: color-mix(in srgb, var(--c-neutral-0) 40%, transparent); background: color-mix(in srgb, var(--c-neutral-0) 12%, transparent); color: var(--c-neutral-0); }
.l-cta .l-social__item:hover { background: color-mix(in srgb, var(--c-neutral-0) 24%, transparent); color: var(--c-neutral-0); }

/* Pastki qism. */
.l-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--space-10) var(--space-6) var(--space-6);
  border: 0;
  color: var(--land-ink-soft);
  font-size: var(--text-xs);
  text-align: left;
}
.l-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: var(--space-8); padding-bottom: var(--space-6); }
.l-footer h4 { margin: 0 0 var(--space-3); color: var(--land-ink); font-size: var(--text-sm); }
.l-footer p, .l-footer a { color: var(--land-ink-soft); line-height: 1.9; }
.l-footer a:hover { color: var(--land-blue); }
.l-footer__links { display: grid; gap: var(--space-1); }
.l-footer__copy { display: flex; justify-content: space-between; gap: var(--space-3); padding-top: var(--space-4); border-top: 1px solid var(--land-line); }

/* --- Moslashuv ---------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .l-nav {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: var(--space-3);
    border: 1px solid var(--land-glass-line);
    border-radius: 18px;
    background: var(--land-glass-strong);
    box-shadow: var(--land-shadow);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
  }
  .l-nav.is-open { display: flex; }
  .l-nav a { padding: var(--space-3); font-size: var(--text-md); }
  .l-burger { display: grid; }
  .l-hero2__grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-6); }
  .l-hero2__visual { min-height: 420px; }
  .l-quizband__box { grid-template-columns: minmax(0, 1fr); }
  /* Fanlar: «sochma» joylashuv o'rniga o'raladigan qator (kichik ekranda bir-birining ustiga tushmasin). */
  .l-subjects { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); min-height: 0; padding-block: var(--space-2); }
  .l-sub:nth-child(n) { position: relative; top: auto; left: auto; }
}
@media (max-width: 900px) {
  .l-opps { grid-template-columns: 1fr; }
  .l-footer__grid { grid-template-columns: 1fr 1fr; }
  .l-footer__grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .l-header { top: var(--space-1); width: calc(100% - var(--space-3)); margin-top: var(--space-1); }
  .l-header__bar { gap: var(--space-2); padding: var(--space-2) var(--space-3); }
  .l-brand__logo, .l-brand__mark { width: 40px; height: 40px; border-radius: 13px; }
  .l-brand__name strong { font-size: var(--text-md); }
  .l-login { padding: 10px 14px; }
  .l-section { padding: var(--space-8) var(--space-4); }
  #oquvchilar.l-section { padding-top: var(--space-4); }
  .l-hero2 { padding: var(--space-8) var(--space-4) var(--space-4); }
  .l-hero2__lead { font-size: var(--text-sm); }
  .l-hero2__visual { min-height: 340px; }
  .l-slider { inset: 8px 8px 22px 12px; border-radius: 28px; }
  .l-slider__arrow { display: none; }
  .l-float { padding: 10px 12px; }
  .l-float b { font-size: var(--text-sm); }
  .l-quizband { padding-inline: var(--space-4); }
  .l-cta { padding: var(--space-6); border-radius: 26px; }
  .l-footer__copy { flex-direction: column; }
}
@media (max-width: 420px) {
  .l-brand__name small { display: none; }
  .l-footer__grid { grid-template-columns: 1fr; }
}

/* «Harakatni kamaytirish»: hamma animatsiya to'xtaydi; sarlavhaning faqat birinchi jumlasi turadi. */
@media (prefers-reduced-motion: reduce) {
  .l-rotor__line { animation: none; }
  .l-rotor__line + .l-rotor__line { display: none; }
  .l-float, .l-sub { animation: none; }
  .l-dot, .l-level, .l-slider__arrow, .l-btn, .l-login, .l-course { transition: none; }
}

/* Menyudan sakraganda bo'lim sarlavha ostida qolib ketmasin (sarlavha yopishqoq). */
.l-hero2, .l-quizband, .l-section[id] { scroll-margin-top: 96px; }
.l-course__more { display: inline-flex; align-items: center; gap: var(--space-1); }