/* Safar akademiya — vizual qatlam: aurora fon, shisha kartalar, gradientlar,
   scroll-reveal, sahifa o'tishlari va dars (mavzu) sahifasi animatsiyalari. */

:root {
  --grad-primary: linear-gradient(135deg, #0e7c86 0%, #12a4a8 45%, #3fc1c9 100%);
  --grad-gold: linear-gradient(135deg, #c8912a, #f0c46a);
  --grad-hero: linear-gradient(120deg, #0b5f69 0%, #0e7c86 35%, #1aa3a8 65%, #c8912a 120%);
  --glass: color-mix(in srgb, var(--surface) 78%, transparent);
  --glass-border: color-mix(in srgb, var(--primary) 14%, var(--border));
  --glow: 0 10px 40px -12px color-mix(in srgb, var(--primary) 45%, transparent);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Unbounded", "Inter", system-ui, sans-serif;
}

/* ---------- Aurora fon ---------- */
body { background: var(--bg); position: relative; overflow-x: hidden; }
body::before, body::after {
  content: "";
  position: fixed;
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
}
body::before {
  width: 60vmax; height: 60vmax;
  top: -25vmax; left: -15vmax;
  background: radial-gradient(circle at 30% 30%, color-mix(in srgb, #3fc1c9 55%, transparent), transparent 60%),
              radial-gradient(circle at 70% 60%, color-mix(in srgb, #7b4fa0 30%, transparent), transparent 60%);
  animation: aurora-a 26s ease-in-out infinite alternate;
}
body::after {
  width: 55vmax; height: 55vmax;
  bottom: -25vmax; right: -15vmax;
  background: radial-gradient(circle at 40% 40%, color-mix(in srgb, #f0c46a 45%, transparent), transparent 60%),
              radial-gradient(circle at 60% 70%, color-mix(in srgb, #0e7c86 40%, transparent), transparent 60%);
  animation: aurora-b 32s ease-in-out infinite alternate;
}
@keyframes aurora-a { to { transform: translate(18vmax, 10vmax) rotate(40deg) scale(1.15); } }
@keyframes aurora-b { to { transform: translate(-16vmax, -12vmax) rotate(-30deg) scale(1.1); } }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) body::before, :root:not([data-theme="light"]) body::after { opacity: 0.32; } }

/* ---------- Tipografiya ---------- */
h1, .lesson-title, .hero h1 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; }
.gradient-text {
  background: var(--grad-hero);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-move 8s ease-in-out infinite alternate;
}
@keyframes gradient-move { to { background-position: 100% 50%; } }

/* ---------- Topbar (shisha) ---------- */
.topbar { background: color-mix(in srgb, var(--surface) 70%, transparent); backdrop-filter: saturate(160%) blur(14px); transition: box-shadow 0.3s, background 0.3s; }
.topbar.scrolled { box-shadow: 0 6px 30px -12px rgba(8, 40, 46, 0.25); background: color-mix(in srgb, var(--surface) 88%, transparent); }
.brand-mark { display: inline-block; animation: compass 6s ease-in-out infinite; }
@keyframes compass { 0%, 100% { transform: rotate(-12deg); } 50% { transform: rotate(18deg); } }
.nav a { position: relative; transition: color 0.2s, background 0.2s; }
.nav a::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px; border-radius: 2px; background: var(--grad-primary); transform: scaleX(0); transition: transform 0.3s var(--ease-out); }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav a.btn::after { display: none; }

/* ---------- Kartalar ---------- */
.card { background: var(--glass); backdrop-filter: blur(10px); border-color: var(--glass-border); transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), border-color 0.3s; }
a.card:hover, .card.hoverable:hover { transform: translateY(-4px); box-shadow: var(--glow); border-color: color-mix(in srgb, var(--primary) 40%, transparent); }
.tilt { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transform-style: preserve-3d; position: relative; overflow: hidden; }
.tilt::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.22), transparent 45%); opacity: 0; transition: opacity 0.3s; }
.tilt:hover::after { opacity: 1; }

/* ---------- Tugmalar ---------- */
.btn:not(.ghost):not(.danger) { background: var(--grad-primary); border-color: transparent; position: relative; overflow: hidden; box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--primary) 70%, transparent); }
.btn:not(.ghost):not(.danger)::before { content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.35), transparent); transform: skewX(-20deg); transition: left 0.6s var(--ease-out); }
.btn:not(.ghost):not(.danger):hover::before { left: 120%; }
.btn { transition: transform 0.2s var(--ease-out), box-shadow 0.2s, filter 0.2s; }
.btn:active { transform: scale(0.97); }
.btn.ghost { backdrop-filter: blur(6px); }

/* ---------- Scroll-reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px) scale(0.985); transition: opacity 0.7s var(--ease-out) var(--stagger, 0ms), transform 0.7s var(--ease-out) var(--stagger, 0ms); }
.reveal.in { opacity: 1; transform: none; }
a.card.reveal.in:hover { transform: translateY(-4px); }
.tilt.reveal.in { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); }

/* ---------- Sahifa o'tishi ---------- */
main > * { animation: page-in 0.5s var(--ease-out) both; }
@keyframes page-in { from { opacity: 0; transform: translateY(10px); } }
::view-transition-old(root) { animation: vt-out 0.22s ease both; }
::view-transition-new(root) { animation: vt-in 0.38s var(--ease-out) both; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-6px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(10px); } }

/* ---------- Bosh sahifa ---------- */
.hero-xl { position: relative; padding: 48px 0 24px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.hero-xl h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.08; margin-bottom: 18px; }
.hero-chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: var(--glass); border: 1px solid var(--glass-border); font-size: 0.85rem; font-weight: 600; color: var(--primary); backdrop-filter: blur(8px); }
.hero-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: #2ecc71; box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.6); animation: ping 1.8s infinite; }
@keyframes ping { to { box-shadow: 0 0 0 10px rgba(46, 204, 113, 0); } }
.hero-visual { position: relative; aspect-ratio: 1 / 1; max-width: 460px; justify-self: center; width: 100%; }
.orbit { position: absolute; inset: 0; border-radius: 50%; border: 1px dashed color-mix(in srgb, var(--primary) 35%, transparent); animation: spin 40s linear infinite; }
.orbit.o2 { inset: 14%; animation-duration: 28s; animation-direction: reverse; }
.orbit.o3 { inset: 30%; animation-duration: 20s; }
.orbit-item { position: absolute; width: 56px; height: 56px; margin: -28px; border-radius: 16px; display: grid; place-items: center; font-size: 1.6rem; background: var(--glass); border: 1px solid var(--glass-border); box-shadow: var(--shadow); backdrop-filter: blur(8px); animation: spin 40s linear infinite reverse; }
.orbit.o2 .orbit-item { animation-duration: 28s; animation-direction: normal; }
.orbit.o3 .orbit-item { animation-duration: 20s; }
.hero-core { position: absolute; inset: 38%; border-radius: 50%; background: var(--grad-hero); background-size: 200% 200%; animation: gradient-move 6s ease-in-out infinite alternate, breathe 4s ease-in-out infinite; display: grid; place-items: center; font-size: 2.6rem; box-shadow: 0 20px 60px -10px color-mix(in srgb, var(--primary) 60%, transparent); }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes breathe { 50% { transform: scale(1.06); } }
.counter-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 18px 0 8px; }
.counter { padding: 18px; border-radius: var(--radius); background: var(--glass); border: 1px solid var(--glass-border); backdrop-filter: blur(10px); }
.counter b { display: block; font-family: var(--font-display); font-size: 2rem; background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent; }
.counter span { color: var(--muted); font-size: 0.85rem; }
.feature-icon { width: 56px; height: 56px; display: grid; place-items: center; border-radius: 16px; background: color-mix(in srgb, var(--primary) 12%, transparent); font-size: 1.7rem; margin-bottom: 12px; transition: transform 0.4s var(--ease-out); }
a.feature:hover .feature-icon { transform: rotate(-8deg) scale(1.12); }
.timeline { list-style: none; padding: 0; margin: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 19px; top: 6px; bottom: 6px; width: 2px; background: var(--grad-primary); transform-origin: top; animation: draw-line 1.6s var(--ease-out) both; }
@keyframes draw-line { from { transform: scaleY(0); } }
.timeline li { position: relative; padding: 0 0 18px 56px; }
.timeline li .t-num { position: absolute; left: 0; top: -4px; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); border: 2px solid var(--primary); font-weight: 800; color: var(--primary); }

/* ---------- Mavzular ro'yxati ---------- */
.topic-card { position: relative; overflow: hidden; }
.topic-card .topic-thumb { height: 180px; transition: transform 0.8s var(--ease-out), filter 0.4s; }
.topic-card:hover .topic-thumb { transform: scale(1.06); filter: saturate(1.15); }
.topic-thumb-wrap { overflow: hidden; border-radius: 12px; margin-bottom: 12px; position: relative; }
.topic-thumb-wrap .topic-thumb { margin: 0; display: block; }
.topic-thumb-wrap .topic-thumb.placeholder { display: grid; place-items: center; font-size: 4.5rem; background: var(--grad-hero, linear-gradient(135deg, var(--primary-soft), var(--accent-soft))); }
.topic-thumb-wrap .topic-thumb.placeholder { background-size: 200% 200%; animation: floaty 5s ease-in-out infinite alternate; }
@keyframes floaty { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }
.topic-thumb-wrap .num-badge { position: absolute; left: 12px; top: 12px; padding: 4px 12px; border-radius: 999px; background: rgba(5, 25, 30, 0.6); color: #fff; font-weight: 700; font-size: 0.8rem; backdrop-filter: blur(6px); }

/* ---------- Dars sahifasi ---------- */
.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 4px; z-index: 60; pointer-events: none; }
.reading-progress-fill { height: 100%; background: var(--grad-gold); transform-origin: left; transform: scaleX(0); box-shadow: 0 0 12px color-mix(in srgb, #f0c46a 70%, transparent); }
.lesson-hero { position: relative; min-height: 380px; border-radius: 24px; overflow: hidden; display: flex; align-items: flex-end; margin-bottom: 26px; background: var(--grad-hero); box-shadow: 0 30px 80px -30px rgba(8, 50, 56, 0.55); }
.lesson-hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; animation: kenburns 24s ease-in-out infinite alternate; }
@keyframes kenburns { from { transform: scale(1.05) translate(0, 0); } to { transform: scale(1.18) translate(-2%, -3%); } }
.lesson-hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 30, 36, 0.05) 0%, rgba(4, 30, 36, 0.55) 45%, rgba(4, 30, 36, 0.92) 100%); }
.lesson-hero.no-image .lesson-hero-overlay { background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.18), transparent 50%), linear-gradient(180deg, transparent, rgba(4, 30, 36, 0.5)); }
.lesson-hero-content { position: relative; padding: 32px 36px; color: #fff; max-width: 860px; animation: hero-rise 0.9s var(--ease-out) both; }
@keyframes hero-rise { from { opacity: 0; transform: translateY(24px); } }
.lesson-hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.25); backdrop-filter: blur(8px); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.hero-emoji { font-size: 1.2rem; }
.lesson-title { font-size: clamp(1.6rem, 3.4vw, 2.6rem); margin: 14px 0 10px; color: #fff; text-shadow: 0 2px 20px rgba(0, 0, 0, 0.35); }
.lesson-goal { color: rgba(255, 255, 255, 0.88); max-width: 760px; }
.lesson-stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.stat-pill { padding: 6px 12px; border-radius: 999px; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.22); font-size: 0.85rem; font-weight: 600; backdrop-filter: blur(6px); }
.lesson-comps .chip { background: rgba(255, 255, 255, 0.9); }
.hero-ring { --p: 0; position: absolute; right: 28px; top: 28px; width: 104px; height: 104px; border-radius: 50%; display: grid; place-items: center; align-content: center; color: #fff;
  background: radial-gradient(closest-side, rgba(4, 30, 36, 0.75) 78%, transparent 80% 100%), conic-gradient(#f0c46a calc(var(--p) * 1%), rgba(255, 255, 255, 0.18) 0);
  transition: --p 1s; backdrop-filter: blur(6px); }
.hero-ring b { font-size: 1.4rem; line-height: 1; }
.hero-ring span { font-size: 0.7rem; opacity: 0.8; }
@property --p { syntax: "<number>"; inherits: false; initial-value: 0; }

.lesson-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 28px; align-items: start; }
.lesson-rail { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 4px; padding: 14px; border-radius: 18px; background: var(--glass); border: 1px solid var(--glass-border); backdrop-filter: blur(12px); max-height: calc(100vh - 110px); overflow-y: auto; }
.rail-title { font-family: var(--font-display); font-size: 0.8rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; padding: 4px 8px 10px; }
.lesson-rail a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 12px; color: var(--muted); text-decoration: none; font-weight: 600; font-size: 0.92rem; transition: background 0.25s, color 0.25s, transform 0.25s var(--ease-out); }
.lesson-rail a:hover { background: var(--surface-2); color: var(--text); transform: translateX(3px); }
.lesson-rail a.active { background: var(--primary-soft); color: var(--primary); }
.rail-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--surface-2); flex-shrink: 0; transition: transform 0.3s var(--ease-out); }
.lesson-rail a.active .rail-icon { background: var(--grad-primary); transform: scale(1.08); }
.rail-label { flex: 1; }
.rail-count { font-size: 0.75rem; padding: 1px 8px; border-radius: 999px; background: var(--surface-2); }
.rail-sub { margin: 4px 0 0 18px; padding-left: 12px; border-left: 2px solid var(--border); display: flex; flex-direction: column; }
.rail-sub a { font-weight: 500; font-size: 0.8rem; padding: 5px 8px; border-radius: 8px; line-height: 1.3; }
.rail-sub a.active { color: var(--primary); background: transparent; box-shadow: inset 2px 0 0 var(--primary); transform: none; }

.lesson-body { display: flex; flex-direction: column; gap: 46px; min-width: 0; }
.chapter { scroll-margin-top: 90px; }
.chapter-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.chapter-head h2 { margin: 0; font-family: var(--font-display); font-size: 1.35rem; }
.chapter-head p { margin: 2px 0 0; }
.chapter-icon { width: 52px; height: 52px; display: grid; place-items: center; font-size: 1.6rem; border-radius: 16px; background: var(--grad-primary); box-shadow: var(--glow); flex-shrink: 0; }
.book-section { scroll-margin-top: 90px; padding: 26px 30px; }
.section-heading { font-family: var(--font-display); font-size: 1.12rem; color: var(--primary); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid transparent; border-image: var(--grad-primary) 1; }
.book-text { font-size: 1.02rem; line-height: 1.75; }
.book-text p { margin-bottom: 0.9em; }
.book-text ul li::marker { color: var(--primary); }
.book-text b { color: var(--text); background: linear-gradient(transparent 62%, color-mix(in srgb, #f0c46a 40%, transparent) 62%); }
.book-table tbody tr { transition: background 0.2s; }
.book-table tbody tr:hover { background: var(--primary-soft); }
.plan-steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.plan-steps li { counter-increment: step; display: flex; gap: 12px; align-items: flex-start; }
.plan-steps li::before { content: counter(step); flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 0.85rem; color: #fff; background: var(--grad-primary); }

.lesson-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.pager-card { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px; border-radius: 16px; text-decoration: none; color: var(--text); background: var(--glass); border: 1px solid var(--glass-border); transition: transform 0.3s var(--ease-out), box-shadow 0.3s; }
.pager-card.next { text-align: right; }
.pager-card:hover { transform: translateY(-3px); box-shadow: var(--glow); }
.pager-card small { color: var(--primary); font-weight: 700; }

.notes-wrap { position: fixed; right: 22px; bottom: 22px; z-index: 70; }
.notes-fab { width: 58px; height: 58px; border-radius: 50%; border: none; cursor: pointer; font-size: 1.5rem; background: var(--grad-gold); box-shadow: 0 12px 30px -8px rgba(200, 145, 42, 0.7); transition: transform 0.3s var(--ease-out); animation: fab-in 0.6s var(--ease-out) 0.6s both; }
.notes-fab:hover { transform: scale(1.08) rotate(-6deg); }
@keyframes fab-in { from { opacity: 0; transform: scale(0.4); } }
.notes-drawer { position: fixed; right: 22px; bottom: 92px; width: min(380px, calc(100vw - 44px)); max-height: 70vh; overflow-y: auto; padding: 18px; border-radius: 20px; background: var(--surface); border: 1px solid var(--glass-border); box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.35); transform-origin: bottom right; transform: scale(0.85) translateY(20px); opacity: 0; pointer-events: none; transition: transform 0.35s var(--ease-out), opacity 0.25s; }
.notes-wrap.open .notes-drawer { transform: none; opacity: 1; pointer-events: auto; }

/* Test animatsiyalari */
.quiz-q.ok { animation: pop 0.45s var(--ease-out); }
@keyframes pop { 40% { transform: scale(1.015); } }
.shake { animation: shake 0.45s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.option { transition: background 0.2s, border-color 0.2s, transform 0.2s var(--ease-out); }
.option:hover { transform: translateX(3px); }
.confetti-layer { position: fixed; inset: 0; pointer-events: none; z-index: 300; }
.confetti-layer i { position: absolute; width: 9px; height: 14px; border-radius: 2px; animation: confetti 1.5s var(--ease-out) forwards; }
@keyframes confetti { to { transform: translate(var(--dx), calc(var(--dy) + 260px)) rotate(var(--rot)); opacity: 0; } }
.flashcard { transition: transform 0.3s var(--ease-out); }
.flashcard:hover { transform: translateY(-4px); }
.flash-inner { transition: transform 0.7s var(--ease-out); }

/* Mobil */
@media (max-width: 960px) {
  .lesson-layout { grid-template-columns: 1fr; }
  .lesson-rail { position: sticky; top: 64px; z-index: 15; flex-direction: row; overflow-x: auto; max-height: none; padding: 8px; border-radius: 14px; }
  .rail-title, .rail-sub, .rail-count { display: none; }
  .lesson-rail a { flex-shrink: 0; padding: 7px 10px; }
  .hero-xl { grid-template-columns: 1fr; }
  .hero-visual { max-width: 320px; }
  .counter-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .lesson-hero { min-height: 420px; border-radius: 18px; }
  .lesson-hero-content { padding: 22px 18px; }
  .hero-ring { width: 78px; height: 78px; right: 14px; top: 14px; }
  .hero-ring b { font-size: 1.1rem; }
  .book-section { padding: 18px; }
  .rail-label { font-size: 0.82rem; }
  .lesson-pager { grid-template-columns: 1fr; }
}

/* Harakatni kamaytirish sozlamasi */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}
@media print {
  body::before, body::after, .reading-progress, .notes-wrap, .lesson-rail { display: none !important; }
}
.quiz-result { display: flex; gap: 22px; align-items: center; animation: pop 0.5s var(--ease-out); }
@media (max-width: 600px) { .quiz-result { flex-direction: column; text-align: center; } }

/* ---------- Tadqiqot guruhini tanlash ---------- */
.cohort-pick { border: 0; padding: 0; margin: 4px 0 14px; }
.cohort-pick legend { font-weight: 600; font-size: 0.92rem; margin-bottom: 8px; }
.choice-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice-card { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 14px; border: 1.5px solid var(--border); border-radius: 14px; background: var(--surface); cursor: pointer; transition: border-color 0.2s, box-shadow 0.25s, transform 0.25s var(--ease-out); }
.choice-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.choice-card input { position: absolute; opacity: 0; pointer-events: none; }
.choice-card:has(input:focus-visible) { outline: 2px solid var(--primary); outline-offset: 2px; }
.choice-card .choice-icon { font-size: 1.6rem; }
.choice-card.active { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent), 0 10px 24px -14px var(--primary); background: color-mix(in srgb, var(--primary) 6%, var(--surface)); }
.choice-card.active::after { content: "✓"; position: absolute; top: 10px; right: 12px; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: #fff; font-size: 0.75rem; font-weight: 800; animation: pop 0.35s var(--ease-out); }
@media (max-width: 520px) { .choice-cards { grid-template-columns: 1fr; } }

/* ---------- Ochiq monitoring: texnikumlar kesimida natijalar ---------- */
.results-board {
  --st-T0: #cf7a1f; --st-T1: #0f97a3; --st-T2: #5a46b8;
  --lv-low: #a9dde1; --lv-low-ink: #0b3d43; --lv-mid: #3aa7b0; --lv-mid-ink: #ffffff; --lv-high: #0b5f69; --lv-high-ink: #ffffff;
  margin-top: 56px; padding: 56px 0 40px; position: relative;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--primary) 7%, transparent) 30%, color-mix(in srgb, var(--primary) 10%, transparent));
  border-top: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) .results-board { --st-T0: #c97a22; --st-T1: #1aa5b1; --st-T2: #8576ea; --lv-low: #1f5a60; --lv-low-ink: #e3eef0; --lv-mid: #2a96a0; --lv-mid-ink: #06282b; --lv-high: #7fd6dc; --lv-high-ink: #06282b; }
}
:root[data-theme="dark"] .results-board { --st-T0: #c97a22; --st-T1: #1aa5b1; --st-T2: #8576ea; --lv-low: #1f5a60; --lv-low-ink: #e3eef0; --lv-mid: #2a96a0; --lv-mid-ink: #06282b; --lv-high: #7fd6dc; --lv-high-ink: #06282b; }
.results-board:empty { min-height: 240px; }
.rb-head { max-width: 760px; margin-bottom: 18px; }
.rb-head h2 { font-family: var(--font-display, inherit); font-size: clamp(1.4rem, 2.6vw, 2rem); margin: 4px 0 8px; }
.rb-updated { font-size: 0.85rem; }
.rb-tiles { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.rb-tile { position: relative; padding: 14px 16px; border-radius: 14px; background: var(--glass, var(--surface)); border: 1px solid var(--border); backdrop-filter: blur(10px); }
.rb-tile b { display: block; font-size: 1.6rem; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; }
.rb-tile span { font-size: 0.8rem; color: var(--muted); }
.rb-tile .rb-dot { position: absolute; top: 14px; right: 14px; }
.rb-filters { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.rb-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 0.85rem; color: var(--muted); }
.rb-legend span { display: inline-flex; align-items: center; gap: 6px; }
.rb-swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.rb-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.st-T0 { background: var(--st-T0); } .st-T1 { background: var(--st-T1); } .st-T2 { background: var(--st-T2); }
.lv-low { background: var(--lv-low); color: var(--lv-low-ink); } .lv-mid { background: var(--lv-mid); color: var(--lv-mid-ink); } .lv-high { background: var(--lv-high); color: var(--lv-high-ink); }
.rb-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 16px; align-items: start; }
.rb-card { padding: 20px; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); min-width: 0; }
.rb-card h3 { margin: 0 0 4px; font-size: 1.05rem; }
.linklike { background: none; border: 0; padding: 0; color: var(--primary); cursor: pointer; font: inherit; text-decoration: underline; }

.rb-bars { --name-w: 210px; margin-top: 12px; }
.rb-axis { position: relative; height: 18px; margin-left: var(--name-w); margin-right: 52px; font-size: 0.72rem; color: var(--muted); }
.rb-axis span { position: absolute; transform: translateX(-50%); }
.rb-row { display: grid; grid-template-columns: var(--name-w) 1fr; gap: 0; align-items: center; padding: 8px 0; border-top: 1px solid var(--border); transition: background 0.2s; border-radius: 8px; }
.rb-row.focused { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.rb-name { text-align: left; background: none; border: 0; cursor: pointer; padding: 4px 12px 4px 4px; font: inherit; font-weight: 600; font-size: 0.86rem; color: var(--text); line-height: 1.25; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.rb-name > span { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rb-name small { display: block; font-weight: 400; color: var(--muted); font-size: 0.75rem; }
.rb-name:hover { color: var(--primary); }
.rb-track { position: relative; display: grid; gap: 4px; padding-right: 52px; }
.rb-grid-line { position: absolute; top: -2px; bottom: -2px; width: 1px; background: var(--border); opacity: 0.7; }
.rb-grid-line:first-child { background: var(--muted); opacity: 0.6; }
.rb-bar-line { position: relative; height: 12px; display: flex; align-items: center; }
.rb-bar { flex: none; height: 10px; width: var(--w); max-width: 100%; border-radius: 0 4px 4px 0; transform-origin: left center; transform: scaleX(0); transition: transform 0.9s var(--ease-out); cursor: default; position: relative; }
.rb-bar.grown { transform: scaleX(1); }
.rb-bar:hover, .rb-bar:focus-visible { filter: brightness(1.12); outline: none; box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px currentColor; }
.rb-bar.none { width: 0; }
.rb-val { margin-left: 6px; white-space: nowrap; font-size: 0.75rem; font-variant-numeric: tabular-nums; color: var(--muted); opacity: 0; transition: opacity 0.4s 0.6s; }
.rb-bar.grown + .rb-val, .rb-bar.none + .rb-val { opacity: 1; }

.rb-levels { display: grid; gap: 14px; margin-top: 14px; }
.rb-level-row { display: grid; grid-template-columns: 130px 1fr 52px; gap: 10px; align-items: center; font-size: 0.85rem; }
.rb-level-stage { display: inline-flex; align-items: center; gap: 6px; color: var(--text); }
.rb-level-n { font-size: 0.75rem; color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }
.rb-stack { display: flex; gap: 2px; height: 28px; border-radius: 6px; overflow: hidden; background: var(--surface-2); }
.rb-stack.empty { align-items: center; justify-content: center; color: var(--muted); font-size: 0.78rem; }
.rb-seg { width: var(--w); display: grid; place-items: center; font-size: 0.75rem; font-weight: 700; transform-origin: left center; transform: scaleX(0); transition: transform 0.8s var(--ease-out); }
.rb-seg.grown { transform: scaleX(1); }
.rb-seg:hover, .rb-seg:focus-visible { filter: brightness(1.1); outline: none; }
.rb-legend.levels { margin-top: 4px; }

.rb-empty { padding: 18px 0 6px; }
.rb-empty-bars { display: grid; gap: 10px; margin-bottom: 14px; }
.rb-empty-bars i { height: 10px; border-radius: 0 4px 4px 0; background: linear-gradient(90deg, var(--surface-2), color-mix(in srgb, var(--primary) 18%, var(--surface-2)), var(--surface-2)); background-size: 200% 100%; animation: shimmer 2.2s linear infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }
.rb-empty p { color: var(--muted); font-size: 0.9rem; margin: 0; }
.rb-table { margin-top: 16px; }
.rb-table summary { cursor: pointer; color: var(--primary); font-weight: 600; font-size: 0.9rem; }
.rb-table tr.total td { font-weight: 700; }
.rb-tip { position: fixed; z-index: 1000; pointer-events: none; padding: 8px 12px; border-radius: 10px; background: var(--text); color: var(--bg); font-size: 0.8rem; line-height: 1.4; box-shadow: 0 10px 24px -10px rgba(0, 0, 0, 0.4); opacity: 0; transform: translateY(4px); transition: opacity 0.15s, transform 0.15s; max-width: 280px; }
.rb-tip.show { opacity: 1; transform: none; }
@media (max-width: 1100px) { .rb-tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 900px) { .rb-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) {
  .rb-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rb-bars { --name-w: 110px; }
  .rb-level-row { grid-template-columns: 92px 1fr 40px; font-size: 0.78rem; }
  .rb-filters .segmented { width: 100%; overflow-x: auto; }
}
@media print { .results-board { display: none; } }

/* ---------- Taqdimot ko'ruvchisi ---------- */
.slide-viewer { position: relative; border-radius: 18px; overflow: hidden; background: #0b1416; box-shadow: 0 24px 60px -30px rgba(8, 40, 46, 0.6); border: 1px solid var(--border); }
.sv-stage { position: relative; width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: radial-gradient(ellipse at 50% 40%, #1d3338, #0b1416 70%); outline: none; touch-action: pan-y; perspective: 1400px; }
.sv-stage.frame { aspect-ratio: 16 / 10; }
.sv-stage iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #fff; }
.sv-canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.sv-canvas.in-next { animation: svInNext 0.6s var(--ease-out) both; }
.sv-canvas.in-prev { animation: svInPrev 0.6s var(--ease-out) both; }
.sv-canvas.out-next { animation: svOutNext 0.5s ease-in both; }
.sv-canvas.out-prev { animation: svOutPrev 0.5s ease-in both; }
@keyframes svInNext { from { opacity: 0; transform: translateX(14%) rotateY(-14deg) scale(0.94); filter: blur(4px); } }
@keyframes svInPrev { from { opacity: 0; transform: translateX(-14%) rotateY(14deg) scale(0.94); filter: blur(4px); } }
@keyframes svOutNext { to { opacity: 0; transform: translateX(-10%) rotateY(10deg) scale(0.92); } }
@keyframes svOutPrev { to { opacity: 0; transform: translateX(10%) rotateY(-10deg) scale(0.92); } }
.sv-nav { position: absolute; top: 50%; z-index: 2; width: 46px; height: 46px; margin-top: -23px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, 0.14); color: #fff; font-size: 1.8rem; line-height: 1; cursor: pointer; backdrop-filter: blur(8px); opacity: 0; transition: opacity 0.25s, transform 0.25s, background 0.2s; }
.sv-nav.prev { left: 14px; } .sv-nav.next { right: 14px; }
.slide-viewer:hover .sv-nav:not(:disabled), .sv-stage:focus-visible .sv-nav:not(:disabled) { opacity: 1; }
.sv-nav:hover { background: rgba(255, 255, 255, 0.28); transform: scale(1.08); }
.sv-nav:disabled { cursor: default; }
.sv-progress { height: 3px; background: rgba(255, 255, 255, 0.08); }
.sv-progress i { display: block; height: 100%; background: var(--grad-gold, var(--accent)); transform-origin: left; transform: scaleX(0); transition: transform 0.5s var(--ease-out); }
.sv-bar { display: flex; align-items: center; gap: 6px; padding: 8px 12px; background: #0f1d20; color: #dbe9ec; font-size: 0.88rem; flex-wrap: wrap; }
.sv-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1 1 120px; margin-left: 8px; opacity: 0.85; }
.sv-spacer { flex: 0 0 0; }
.sv-count { font-variant-numeric: tabular-nums; min-width: 64px; text-align: center; font-weight: 700; }
.sv-btn { display: inline-grid; place-items: center; min-width: 34px; height: 34px; padding: 0 8px; border-radius: 9px; border: 0; background: rgba(255, 255, 255, 0.08); color: inherit; cursor: pointer; text-decoration: none; font-size: 0.95rem; transition: background 0.2s, transform 0.2s; }
.sv-btn:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-1px); }
.sv-btn.on { background: var(--accent); color: #1b1203; }
.slide-viewer .btn.ghost { color: #dbe9ec; border-color: rgba(255, 255, 255, 0.25); }
.sv-thumbs { display: none; gap: 8px; overflow-x: auto; padding: 10px 12px 12px; background: #0f1d20; scroll-snap-type: x proximity; }
.slide-viewer.show-thumbs .sv-thumbs { display: flex; animation: page-in 0.3s var(--ease-out); }
.sv-thumbs button { position: relative; flex: none; width: 132px; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; border: 2px solid transparent; background: #1b2d32; cursor: pointer; padding: 0; scroll-snap-align: center; transition: border-color 0.2s, transform 0.2s; }
.sv-thumbs button:hover { transform: translateY(-2px); }
.sv-thumbs button.active { border-color: var(--accent); }
.sv-thumbs canvas { width: 100%; height: 100%; object-fit: contain; display: block; }
.sv-thumbs span { position: absolute; left: 6px; bottom: 4px; font-size: 0.7rem; font-weight: 700; color: #fff; background: rgba(0, 0, 0, 0.55); padding: 1px 6px; border-radius: 6px; }
.sv-loading { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 12px; color: #cfe3e6; font-size: 0.9rem; text-align: center; padding: 20px; }
.sv-spinner { width: 42px; height: 42px; border-radius: 50%; border: 3px solid rgba(255, 255, 255, 0.15); border-top-color: var(--accent); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.sv-load-bar { width: 180px; height: 4px; border-radius: 4px; background: rgba(255, 255, 255, 0.12); overflow: hidden; }
.sv-load-bar i { display: block; height: 100%; background: var(--accent); transform-origin: left; transform: scaleX(0.04); transition: transform 0.3s; }
.slide-viewer:fullscreen { border-radius: 0; display: flex; flex-direction: column; border: 0; }
.slide-viewer:fullscreen .sv-stage { flex: 1; aspect-ratio: auto !important; }
.slide-viewer .alert { margin: 12px; }
.modal .slide-viewer { margin: -4px 0 0; }
.slides-badge { position: absolute; right: 12px; top: 12px; padding: 4px 10px; border-radius: 999px; background: var(--grad-gold, var(--accent)); color: #241703; font-weight: 700; font-size: 0.75rem; box-shadow: 0 6px 16px -8px rgba(0, 0, 0, 0.5); }
@media (max-width: 600px) { .sv-title { display: none; } .sv-nav { opacity: 0.8; width: 38px; height: 38px; margin-top: -19px; } }

/* O'qituvchi: taqdimotlar boshqaruvi */
.sm-row { display: grid; grid-template-columns: 96px 1fr auto; gap: 16px; align-items: center; transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s; }
.sm-row.drag { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent); transform: scale(1.01); }
.sm-row h3 { margin: 2px 0 6px; font-size: 1rem; }
.sm-thumb { width: 96px; height: 64px; border-radius: 10px; overflow: hidden; display: grid; place-items: center; font-size: 2rem; background: var(--surface-2); }
.sm-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sm-status .muted { word-break: break-all; }
.sm-upload { position: relative; height: 18px; margin-top: 8px; border-radius: 9px; background: var(--surface-2); overflow: hidden; font-size: 0.72rem; font-weight: 700; display: grid; place-items: center; }
.sm-upload-fill { position: absolute; inset: 0; background: var(--grad-primary, var(--primary)); transform-origin: left; transform: scaleX(0); transition: transform 0.3s; opacity: 0.85; }
.sm-upload span { position: relative; color: var(--text); }
.sm-row.uploading .sm-actions button { pointer-events: none; opacity: 0.6; }
.danger-text { color: var(--err) !important; }
@media (max-width: 760px) { .sm-row { grid-template-columns: 64px 1fr; } .sm-thumb { width: 64px; height: 48px; } .sm-actions { grid-column: 1 / -1; } }

/* ---------- Trenajyor: ovozli rejim ---------- */
.voice-stage { --lvl: 0; display: none; grid-template-columns: auto 1fr; gap: 22px; align-items: center; padding: 18px 22px; margin-bottom: 14px; border-radius: 20px; color: #e8f6f7; background: radial-gradient(120% 140% at 0% 0%, #12707a 0%, #0b3f46 45%, #08262b 100%); box-shadow: 0 24px 50px -28px rgba(6, 50, 56, 0.8); position: relative; overflow: hidden; }
.voice-stage.open { display: grid; animation: page-in 0.45s var(--ease-out); }
.voice-stage::before { content: ""; position: absolute; inset: -40%; background: conic-gradient(from 0deg, transparent, rgba(95, 196, 204, 0.18), transparent 30%, rgba(236, 199, 123, 0.14), transparent 60%); animation: spin 14s linear infinite; pointer-events: none; }
.vo-orb { position: relative; width: 112px; height: 112px; display: grid; place-items: center; }
.vo-orb i { position: absolute; inset: 0; border-radius: 50%; border: 2px solid rgba(255, 255, 255, 0.18); transform: scale(calc(0.72 + var(--lvl) * 0.5)); transition: transform 0.08s linear, border-color 0.3s; }
.vo-orb .r2 { inset: -10px; opacity: 0.6; transform: scale(calc(0.8 + var(--lvl) * 0.7)); }
.vo-orb .r3 { inset: -20px; opacity: 0.35; transform: scale(calc(0.85 + var(--lvl) * 0.9)); }
.vo-face { position: relative; width: 78px; height: 78px; border-radius: 50%; display: grid; place-items: center; font-size: 2.3rem; background: radial-gradient(circle at 35% 30%, #5fc4cc, #0e7c86 60%, #0a4f56); box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08), 0 10px 30px -8px rgba(0, 0, 0, 0.6); transition: transform 0.25s var(--ease-out); }
.voice-stage.speaking .vo-face { animation: talk 0.9s ease-in-out infinite; }
.voice-stage.speaking .vo-orb i { border-color: rgba(95, 196, 204, 0.75); animation: ripple 1.6s ease-out infinite; }
.voice-stage.speaking .vo-orb .r2 { animation-delay: 0.35s; } .voice-stage.speaking .vo-orb .r3 { animation-delay: 0.7s; }
.voice-stage.listening .vo-orb i { border-color: rgba(236, 199, 123, 0.85); }
.voice-stage.listening .vo-face { background: radial-gradient(circle at 35% 30%, #f0c46a, #c8912a 60%, #7a5412); }
@keyframes talk { 50% { transform: scale(1.06); } }
@keyframes ripple { 0% { transform: scale(0.7); opacity: 0.9; } 100% { transform: scale(1.35); opacity: 0; } }
.vo-main { position: relative; display: grid; gap: 8px; min-width: 0; }
.vo-status { font-weight: 700; font-size: 1.02rem; }
.vo-hint { color: rgba(232, 246, 247, 0.72) !important; }
.vo-controls { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.vo-settings { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 0.85rem; }
.vo-settings select { width: auto; max-width: 100%; padding: 6px 10px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.2); background: rgba(255, 255, 255, 0.08); color: inherit; font: inherit; }
.vo-settings option { color: #13252b; }
.vo-check { display: inline-flex; gap: 6px; align-items: center; cursor: pointer; }
.vo-mic { --lvl: 0; position: relative; width: 64px; height: 64px; border-radius: 50%; border: 0; cursor: pointer; font-size: 1.6rem; color: #1b1203; background: var(--grad-gold, #e0ad4f); box-shadow: 0 0 0 calc(var(--lvl) * 18px) rgba(236, 199, 123, 0.28), 0 12px 28px -12px rgba(0, 0, 0, 0.7); transition: transform 0.2s var(--ease-out), box-shadow 0.08s linear; }
.vo-mic:hover { transform: scale(1.06); }
.vo-mic.rec { background: linear-gradient(135deg, #e04f3f, #ff8a65); color: #fff; animation: recPulse 1.4s ease-in-out infinite; }
@keyframes recPulse { 50% { transform: scale(1.07); } }
.voice-toggle.on { background: var(--grad-primary, var(--primary)); color: #fff; border-color: transparent; }
.mic-btn { --lvl: 0; align-self: stretch; min-width: 48px; font-size: 1.15rem; transition: box-shadow 0.08s linear; }
.mic-btn.rec { color: #fff; background: linear-gradient(135deg, #e04f3f, #ff8a65); border-color: transparent; box-shadow: 0 0 0 calc(var(--lvl) * 12px) rgba(224, 79, 63, 0.25); }
.msg-say { margin-left: 6px; border: 0; background: none; cursor: pointer; font-size: 0.85rem; opacity: 0.55; padding: 0 4px; transition: opacity 0.2s, transform 0.2s; }
.msg-say:hover { opacity: 1; transform: scale(1.15); }
.voice-start { border-color: var(--accent); }
@media (max-width: 640px) { .voice-stage { grid-template-columns: 1fr; justify-items: center; text-align: center; } .vo-controls { justify-content: center; } }
@media (prefers-reduced-motion: reduce) { .voice-stage::before { animation: none; } }

/* Tadqiqot arxivi bilan birlashtirish: manba tanlash va TG/NG taqqoslash */
.rb-source .row { gap: 8px; align-items: center; }
.rb-archive-badge { display: inline-flex; align-items: center; padding: 6px 12px; border-radius: 99px; background: var(--accent-soft); color: var(--text); font-size: 0.8rem; font-weight: 600; }
.rb-cmp { margin-top: 16px; }
.rb-cmp-stage { padding: 12px 0; border-top: 1px dashed var(--border); }
.rb-cmp-stage:first-of-type { border-top: 0; }
.rb-cmp-head { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-weight: 700; font-size: 0.9rem; margin-bottom: 8px; }
.rb-cmp-head .rb-dot { margin-right: 6px; }
.rb-cmp-stat { font-weight: 600; font-size: 0.8rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.rb-cmp-stat.sig { color: var(--ok); }
.rb-cmp-line { display: grid; grid-template-columns: 34px 1fr 110px; gap: 10px; align-items: center; margin: 4px 0; font-size: 0.85rem; }
.rb-cmp-mean { font-variant-numeric: tabular-nums; font-weight: 700; }
.rb-cmp-mean small { font-weight: 400; color: var(--muted); }
@media (max-width: 640px) { .rb-cmp-line { grid-template-columns: 30px 1fr; } .rb-cmp-mean { grid-column: 2; font-size: 0.78rem; } }