:root {
  --bg: #f5f3ee;
  --card: #ffffff;
  --ink: #1c1b19;
  --muted: #6b675f;
  --line: #e4e0d6;
  --soft: #efece5;
  --accent: #0f766e;
  --accent-soft: #dcf1ee;
  --on-accent: #ffffff;
  --ok: #15803d;
  --ok-soft: #dff5e6;
  --bad: #b91c1c;
  --bad-soft: #fde8e6;
  --warn: #a16207;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(28, 27, 25, 0.05), 0 8px 24px -12px rgba(28, 27, 25, 0.12);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.lvl-0 { --accent: #0f766e; --accent-soft: #dcf1ee; }
.lvl-1 { --accent: #1d4ed8; --accent-soft: #e1e9fd; }
.lvl-2 { --accent: #7c3aed; --accent-soft: #ece4fd; }
.lvl-3 { --accent: #c2410c; --accent-soft: #fbe6da; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413;
    --card: #1f1e1c;
    --ink: #ecebe6;
    --muted: #a39f95;
    --line: #35332f;
    --soft: #292825;
    --accent: #2dd4bf;
    --accent-soft: #12332f;
    --on-accent: #0b1f1c;
    --ok: #4ade80;
    --ok-soft: #14301f;
    --bad: #f87171;
    --bad-soft: #3a1a1a;
    --warn: #facc15;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px -12px rgba(0, 0, 0, 0.5);
  }
  .lvl-0 { --accent: #2dd4bf; --accent-soft: #12332f; --on-accent: #0b1f1c; }
  .lvl-1 { --accent: #7aa5ff; --accent-soft: #17254a; --on-accent: #0b1430; }
  .lvl-2 { --accent: #b79bff; --accent-soft: #2a1f4a; --on-accent: #170f30; }
  .lvl-3 { --accent: #fb9a6a; --accent-soft: #40200f; --on-accent: #2a1206; }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; margin: 0 0 0.4em; text-wrap: balance; }
h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 0.8em; }
a { color: var(--accent); }
small { font-weight: 400; color: var(--muted); }
button, input, textarea { font: inherit; color: inherit; }
kbd { font: 600 0.75rem var(--sans); }
.muted { color: var(--muted); font-size: 0.92rem; }
.center { text-align: center; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 1040px; margin: 0 auto; padding: 20px 16px 56px; }
.wrap.narrow { max-width: 760px; }

/* ---------- Tugmalar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--card); color: var(--ink); font-weight: 600; text-decoration: none;
  cursor: pointer; transition: transform 0.08s, background 0.15s, border-color 0.15s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.big { padding: 14px 26px; font-size: 1.05rem; }
.btn.small { padding: 6px 12px; font-size: 0.88rem; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.link-btn { background: none; border: 0; color: var(--muted); text-decoration: underline; cursor: pointer; padding: 0; font-size: 0.9rem; }
.row-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: center; margin-top: 16px; }
.row-actions.spread { justify-content: space-between; }

.spk {
  border: 0; background: var(--accent-soft); width: 34px; height: 34px; border-radius: 50%;
  cursor: pointer; font-size: 0.95rem; flex: none; vertical-align: middle; line-height: 1;
}
.spk:hover { filter: brightness(0.95); }
.spk.big { width: 52px; height: 52px; font-size: 1.4rem; }

.badge {
  display: inline-flex; align-items: center; justify-content: center; min-width: 38px; padding: 3px 9px;
  border-radius: 8px; background: var(--accent); color: var(--on-accent); font: 700 0.85rem var(--sans); letter-spacing: 0.03em;
}
.eyebrow { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.note { background: var(--soft); border-radius: 12px; padding: 12px 14px; font-size: 0.92rem; margin-bottom: 14px; }
.section-label { margin: 22px 4px 10px; font-family: var(--sans); font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.section-label small { text-transform: none; letter-spacing: 0; }

/* ---------- Yuqori panel ---------- */
.top {
  display: flex; align-items: center; gap: 16px; padding: 12px 16px; max-width: 1040px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--serif); font-weight: 700; font-size: 1.1rem; }
.brand small { display: block; font: 500 0.72rem var(--sans); letter-spacing: 0.06em; text-transform: uppercase; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-size: 0.95rem; }
.top-nav { display: flex; gap: 4px; margin-left: auto; }
.top-nav a { padding: 7px 13px; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: 0.93rem; }
.top-nav a.on, .top-nav a:hover { background: var(--soft); color: var(--ink); }
.acct { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; font-weight: 600; white-space: nowrap; }
.acct span { max-width: 140px; overflow: hidden; text-overflow: ellipsis; }
.streak { font-size: 0.9rem; white-space: nowrap; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }

/* ---------- Bosh sahifa ---------- */
.hero {
  display: flex; align-items: center; gap: 24px; justify-content: space-between;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 30px; box-shadow: var(--shadow);
  background-image: radial-gradient(circle at 100% 0%, var(--accent-soft), transparent 55%);
}
.hero p { color: var(--muted); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 18px; }
.hero-meta { color: var(--muted); font-size: 0.9rem; }
.ring { width: 150px; height: 150px; flex: none; }
.ring-bg { fill: none; stroke: var(--soft); stroke-width: 10; }
.ring-fg { fill: none; stroke: var(--accent); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 0.6s; }
.ring-num { font: 700 24px var(--serif); fill: var(--ink); }
.ring-lbl { font: 500 10px var(--sans); fill: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 16px 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat b { display: block; font: 700 1.45rem var(--serif); font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 0.85rem; }

.how { margin: 28px 0 8px; }
.how-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; margin: 12px 0; }
.how-item { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 6px; text-align: center; display: flex; flex-direction: column; gap: 2px; }
.how-item span { font-size: 1.3rem; }
.how-item b { font-size: 0.82rem; }
.how-item small { font-size: 0.75rem; }

.level { margin-top: 32px; }
.level-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.level-head h2 { margin: 0; flex: 1; }
.level-head h2 small { font: 500 0.85rem var(--sans); margin-left: 6px; }
.level-prog { color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.tile {
  display: flex; flex-direction: column; gap: 4px; min-height: 108px; padding: 12px;
  border-radius: 14px; border: 1px solid var(--line); background: var(--card); text-decoration: none; color: var(--ink);
  transition: transform 0.12s, border-color 0.15s;
}
a.tile:hover { transform: translateY(-2px); border-color: var(--accent); }
.tile-n { font: 700 1.35rem var(--serif); color: var(--accent); }
.tile-t { font-size: 0.82rem; line-height: 1.3; flex: 1; }
.tile-s { font-size: 0.78rem; font-weight: 700; color: var(--muted); }
.tile.done { background: var(--accent-soft); border-color: transparent; }
.tile.done .tile-s { color: var(--accent); }
.tile.open { border: 2px solid var(--accent); padding: 11px; }
.tile.open .tile-s { color: var(--accent); }
.tile.locked { opacity: 0.55; }
.tile.locked .tile-n { color: var(--muted); }

.foot { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 0.9rem; }

/* ---------- So'zlarim ---------- */
.page-title { margin: 12px 0 16px; }
.page-title small { font: 500 0.9rem var(--sans); margin-left: 8px; }
.search { width: 100%; padding: 12px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); }
.wgroup { margin: 24px 4px 8px; font-family: var(--sans); font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.wtable { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.wrow { display: grid; grid-template-columns: 34px minmax(90px, 1fr) minmax(90px, 1fr) 2fr; gap: 12px; align-items: center; padding: 9px 14px; border-top: 1px solid var(--line); }
.wrow:first-child { border-top: 0; }
.wrow span { color: var(--muted); }
.wrow em { font-size: 0.88rem; color: var(--muted); }
.wrow.weak b::after { content: " •"; color: var(--bad); }

/* ---------- Dars ---------- */
.lesson-top {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 14px;
  padding: 10px 16px; background: var(--bg); border-bottom: 1px solid var(--line);
}
.back { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--card); border: 1px solid var(--line); text-decoration: none; color: var(--ink); font-size: 1.1rem; flex: none; }
.lesson-title { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.lesson-title div { min-width: 0; line-height: 1.25; }
.lesson-title b { display: block; font-family: var(--serif); }
.lesson-title div span { display: block; color: var(--muted); font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.timer { font-size: 0.88rem; color: var(--muted); text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.timer b { color: var(--ink); }
.timer.full b { color: var(--ok); }
.tbar { height: 4px; border-radius: 4px; background: var(--soft); margin-top: 4px; overflow: hidden; }
.tbar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.5s; }
.timer.full .tbar i { background: var(--ok); }

.steps { display: flex; gap: 6px; padding: 12px 16px; overflow-x: auto; max-width: 1040px; margin: 0 auto; scrollbar-width: none; }
.steps::-webkit-scrollbar { display: none; }
.step {
  flex: 1 0 auto; min-width: 92px; display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 8px 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--card);
  text-decoration: none; color: var(--ink); font-size: 0.8rem; text-align: center;
}
.step-i { font-size: 1.05rem; }
.step-n { font-weight: 600; white-space: nowrap; }
.step small { font-size: 0.7rem; }
.step.done { background: var(--accent-soft); border-color: transparent; }
.step.done .step-i { color: var(--accent); font-weight: 800; }
.step.on { border: 2px solid var(--accent); padding: 7px 9px; }
.step.locked { opacity: 0.45; }

.stage { max-width: 760px; margin: 0 auto; padding: 8px 16px 64px; }
.step-head { margin: 14px 4px 18px; }
.step-head p { color: var(--muted); margin: 0; }

/* Mashq / test */
.quiz-top { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.bar { flex: 1; height: 8px; border-radius: 8px; background: var(--soft); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 8px; transition: width 0.3s; }
.quiz-count { font-size: 0.85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.q-tag { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.q-prompt { font: 700 1.8rem/1.25 var(--serif); margin: 8px 0 6px; overflow-wrap: anywhere; }
.q-prompt.long { font-size: 1.3rem; line-height: 1.4; }
.q-hint { color: var(--muted); font-size: 0.92rem; }
.gap { display: inline-block; min-width: 64px; border-bottom: 3px solid var(--accent); margin: 0 3px; transform: translateY(-3px); }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.opt {
  display: flex; align-items: center; gap: 10px; text-align: left; padding: 13px 14px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--card); cursor: pointer; font-weight: 500; min-height: 52px;
}
.opt:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); }
.opt kbd { width: 22px; height: 22px; border-radius: 6px; background: var(--soft); display: grid; place-items: center; flex: none; color: var(--muted); }
.opt:disabled { cursor: default; }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); }
.type-form { display: flex; gap: 10px; margin-top: 18px; }
.type-input { flex: 1; min-width: 0; padding: 12px 16px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--card); font-size: 1.1rem; }
.type-input:focus { outline: none; border-color: var(--accent); }
.type-input.right { border-color: var(--ok); background: var(--ok-soft); }
.type-input.wrong { border-color: var(--bad); background: var(--bad-soft); text-decoration: line-through; }
.q-feedback, .dict-result, .say-out { margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: var(--soft); }
.q-feedback.ok, .dict-result.ok, .say-out.ok { background: var(--ok-soft); }
.q-feedback.bad, .dict-result.bad, .say-out.bad { background: var(--bad-soft); }
.q-feedback.ok > b, .dict-result.ok > b { color: var(--ok); }
.q-feedback.bad > b:first-child { color: var(--bad); }
.fb-note { margin-top: 4px; font-size: 0.95rem; }
.q-next { margin-top: 14px; width: 100%; }

.done-panel { text-align: center; padding: 36px 22px; }
.big-check { width: 76px; height: 76px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; background: var(--ok-soft); color: var(--ok); font: 800 2.1rem var(--sans); }
.big-check.bad { background: var(--bad-soft); color: var(--bad); font-size: 1.4rem; }
.big-check.flag { background: var(--accent-soft); }
.score-line { color: var(--muted); }
.missed { list-style: none; padding: 0; margin: 12px 0 0; text-align: left; }
.missed li { display: flex; justify-content: space-between; gap: 14px; padding: 8px 2px; border-top: 1px solid var(--line); font-size: 0.93rem; }
.missed b { color: var(--ok); white-space: nowrap; }

/* So'z kartochkalari */
.flash-wrap { text-align: center; }
.flash-count { color: var(--muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; }
.flash {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; width: 100%; min-height: 190px;
  margin: 12px 0; padding: 20px; border-radius: 18px; border: 1.5px dashed var(--line); background: var(--accent-soft); cursor: pointer;
}
.flash-en { font: 700 clamp(2rem, 7vw, 2.8rem) var(--serif); overflow-wrap: anywhere; }
.flash-uz { font-size: 1.3rem; font-weight: 600; color: var(--accent); display: none; }
.flash-tap { font-size: 0.85rem; color: var(--muted); }
.flash.open .flash-uz { display: block; }
.flash.open .flash-tap { display: none; }
.flash-ex { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 1.08rem; min-height: 40px; }
.dots { display: flex; justify-content: center; gap: 6px; margin-top: 16px; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.dots i.seen { background: var(--muted); }
.dots i.on { background: var(--accent); transform: scale(1.3); }

/* Grammatika */
.explain { font-size: 1.02rem; }
.explain b { color: var(--accent); }
.examples { margin-top: 16px; display: grid; gap: 8px; }
.ex { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; background: var(--soft); }
.ex b { display: block; }
.ex span { color: var(--muted); font-size: 0.92rem; }

/* O'qish */
.text-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.text-head h2 { margin: 0; }
.text-tools { display: flex; align-items: center; gap: 10px; }
.text-body { font: 1.14rem/1.8 var(--serif); margin-top: 14px; }
.text-body p { margin-bottom: 1em; }
.w { cursor: pointer; border-radius: 4px; }
.w:hover { background: var(--accent-soft); }
.w.on { background: var(--accent); color: var(--on-accent); }
.gloss { position: sticky; bottom: 12px; margin-top: 8px; padding: 10px 14px; border-radius: 12px; background: var(--ink); color: var(--bg); width: fit-content; }
.gloss .muted { color: inherit; opacity: 0.7; }

/* Diktant */
.dict-play { display: flex; flex-direction: column; align-items: center; gap: 12px; margin: 6px 0 18px; }
.play { width: 84px; height: 84px; border-radius: 50%; border: 0; background: var(--accent); color: var(--on-accent); font-size: 1.9rem; cursor: pointer; padding-left: 6px; box-shadow: 0 8px 20px -8px var(--accent); }
.play:active { transform: scale(0.96); }
.dict-flash { font: 600 1.3rem var(--serif); text-align: center; padding: 18px; transition: filter 0.3s; }
.dict-flash.hidden-text { filter: blur(9px); user-select: none; }
textarea { width: 100%; padding: 14px 16px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--card); resize: vertical; font-size: 1.05rem; line-height: 1.6; }
textarea:focus { outline: none; border-color: var(--accent); }
.diff { margin-top: 8px; font: 600 1.05rem var(--serif); line-height: 1.9; }
.diff .hit { color: var(--ok); }
.diff .miss { color: var(--bad); letter-spacing: 0.1em; }

/* Gapirish */
.say { margin-bottom: 10px; padding: 16px 18px; }
.say-text { display: flex; align-items: center; gap: 12px; font: 600 1.12rem/1.45 var(--serif); }
.say .row-actions { justify-content: flex-start; margin-top: 12px; }
.say.done { border-color: var(--ok); }
.say.done .ok-btn { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
#sdone { width: 100%; margin-top: 12px; }

/* Yozish */
.chips { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 12px 0; }
.chip { padding: 3px 10px; border-radius: 999px; background: var(--soft); font-size: 0.85rem; }
.chip.used { background: var(--ok-soft); color: var(--ok); font-weight: 600; }
.write-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; }
#wcount { color: var(--muted); font-variant-numeric: tabular-nums; }
#wcount.enough { color: var(--ok); }
.feedback { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.feedback h3 { display: flex; align-items: center; gap: 10px; margin-top: 16px; }
.checks { list-style: none; padding: 0; margin: 0 0 8px; display: grid; gap: 6px; }
.checks li { padding: 8px 12px; border-radius: 10px; font-size: 0.95rem; }
.checks li.ok { background: var(--ok-soft); }
.checks li.warn { background: var(--bad-soft); }
.sample { font: 1.05rem/1.7 var(--serif); padding: 14px 16px; border-left: 3px solid var(--accent); background: var(--soft); border-radius: 0 12px 12px 0; }
.feedback .btn.big { width: 100%; margin-top: 6px; }

/* Kirish va yakun */
.plan { padding: 0; list-style: none; display: grid; gap: 8px; margin: 14px 0; }
.plan li { display: flex; gap: 10px; padding: 9px 12px; background: var(--soft); border-radius: 10px; font-size: 0.95rem; }
.plan li span { flex: none; }
.tips { padding-left: 20px; color: var(--muted); }
.tips li { margin-bottom: 4px; }
.summary { text-align: center; padding: 36px 24px; background-image: radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 60%); }
.summary .stats { text-align: left; }
.confetti { font-size: 3.4rem; line-height: 1; margin-bottom: 10px; }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 52ch; margin: 0 auto 8px; }
.summary.cert { border: 2px solid var(--accent); }

@media (max-width: 760px) {
  .hero { flex-direction: column-reverse; align-items: flex-start; padding: 22px; }
  .ring { width: 110px; height: 110px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .how-grid { grid-template-columns: repeat(4, 1fr); }
  .tiles { grid-template-columns: repeat(3, 1fr); }
  .top { flex-wrap: wrap; gap: 10px; }
  .top-nav { order: 3; width: 100%; margin-left: 0; }
  .streak { margin-left: auto; }
  .wrow { grid-template-columns: 34px 1fr 1fr; }
  .wrow em { grid-column: 2 / -1; }
  .card { padding: 18px; }
  .q-prompt { font-size: 1.5rem; }
}
@media (max-width: 460px) {
  .opts { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .type-form { flex-direction: column; }
  .lesson-title div span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}