/* chopon.ai — design system
   Brand: #022391 primary · #0155E7 secondary · #38D6FD AI accent · #FABE31 warm accent · #FDFDFE white
   Motifs: "chok" (dashed stitch seams like on a chopon), ikat diamonds, solid offset shadows. No glows. */

:root {
  --primary: #022391;
  --deep: #012CA8;
  --bright: #0138C7;
  --electric: #0155E7;
  --cyan: #38D6FD;
  --yellow: #FABE31;
  --white: #FDFDFE;
  --ink: #0A1440;
  --text: #1C2853;
  --muted: #56628C;
  --paper: #F3F5FB;
  --line: #D9E0F2;
  --cream: #FFF5D9;
  --sky: #E6F8FF;
  --radius: 18px;
  --maxw: 1180px;
  --display: "Unbounded", system-ui, sans-serif;
  --body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font: 400 17px/1.75 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--electric); text-underline-offset: 3px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--yellow); color: var(--ink); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; border-radius: 6px; }

/* ---------- header: blue band with a stitched seam ---------- */
.site-header { position: sticky; top: 0; z-index: 30; background: var(--primary); }
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 5px;
  border-top: 2px dashed rgba(250, 190, 49, .75);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--white); text-decoration: none; font: 700 21px var(--display); letter-spacing: -.01em; }
.brand img { width: 44px; height: 44px; border-radius: 50%; }
.brand b, .f-brand b { color: var(--yellow); font-weight: inherit; }
.site-header nav { display: flex; gap: 4px; }
.site-header nav a {
  color: var(--white); text-decoration: none; font-weight: 700; font-size: 15px;
  padding: 8px 14px; border-radius: 999px; opacity: .85;
}
.site-header nav a:hover { opacity: 1; background: rgba(253, 253, 254, .1); }
.site-header nav a.active { opacity: 1; background: var(--white); color: var(--primary); }

/* ikat diamond lattice for blue sections (subtle, flat) */
.ikat {
  background-color: var(--primary);
  background-image:
    repeating-linear-gradient(45deg, rgba(56, 214, 253, .08) 0 2px, transparent 2px 34px),
    repeating-linear-gradient(-45deg, rgba(56, 214, 253, .08) 0 2px, transparent 2px 34px);
}

/* ---------- buttons, chips ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  font: 700 16px var(--body); padding: 14px 22px; border-radius: 14px;
  border: 2px solid var(--ink); transition: transform .15s, box-shadow .15s;
}
.btn-yellow { background: var(--yellow); color: var(--ink); box-shadow: 4px 4px 0 var(--ink); }
.btn-yellow:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.btn-ghost { color: var(--white); border-color: rgba(253, 253, 254, .55); }
.btn-ghost:hover { border-color: var(--white); background: rgba(253, 253, 254, .08); }
.chip {
  display: inline-block; font: 700 12px/1 var(--body); letter-spacing: .02em;
  padding: 7px 10px; border-radius: 999px; background: var(--sky); color: var(--primary);
}

/* ---------- home ---------- */
.hero { color: var(--white); padding: 72px 0 88px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .9fr; gap: 48px; align-items: center; }
.eyebrow { font: 700 13px var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); margin: 0 0 18px; }
.hero h1 { font: 700 clamp(34px, 5.4vw, 64px)/1.08 var(--display); letter-spacing: -.02em; margin: 0 0 22px; }
.hl { color: var(--ink); background: var(--yellow); padding: 0 .18em; border-radius: .18em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.hero-lead { font-size: 19px; color: #D5E0FF; max-width: 560px; margin: 0 0 32px; }
.cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-badge { position: relative; justify-self: center; width: min(420px, 80vw); }
.hero-badge::before {
  content: ""; position: absolute; inset: -18px; border-radius: 50%;
  border: 3px dashed rgba(250, 190, 49, .8);
}
.hero-badge img { border-radius: 50%; }

.sec-title { font: 700 clamp(26px, 3.4vw, 38px)/1.15 var(--display); color: var(--primary); letter-spacing: -.02em; margin: 0 0 28px; }
.sec-title.light { color: var(--white); }
.layers { padding: 80px 20px 40px; }
.layer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.layer {
  position: relative; background: var(--white); border: 2px solid var(--ink); border-radius: var(--radius);
  padding: 30px 26px 24px; box-shadow: 6px 6px 0 var(--ink);
}
.layer::after { content: ""; position: absolute; inset: 8px; border: 2px dashed var(--line); border-radius: 12px; pointer-events: none; }
.layer h3 { font: 700 20px var(--display); color: var(--primary); margin: 14px 0 8px; }
.layer p { margin: 0; color: var(--muted); }
.layer-n {
  display: grid; place-items: center; width: 46px; height: 46px; transform: rotate(45deg);
  background: var(--yellow); border: 2px solid var(--ink); border-radius: 8px; font: 800 18px var(--display); color: var(--ink);
}
.layer-n { line-height: 1; }
.layer:nth-child(2) .layer-n { background: var(--cyan); }
.layer:nth-child(3) .layer-n { background: var(--white); }
.home-list { padding: 40px 20px 90px; }
.sec-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.more { font-weight: 800; text-decoration: none; }
.about { background: var(--ink); color: #CBD6F7; padding: 80px 0; }
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; }
.about p { margin: 0 0 16px; font-size: 18px; }
.about strong { color: var(--white); }

/* ---------- page heroes ---------- */
.page-hero, .lesson-hero { color: var(--white); padding: 44px 0 64px; position: relative; overflow: hidden; }
.page-hero h1 { font: 700 clamp(34px, 5vw, 58px)/1.1 var(--display); margin: 14px 0 14px; letter-spacing: -.02em; }
.lead { font-size: 19px; color: #D5E0FF; max-width: 760px; margin: 0; }
.crumbs { font-size: 14px; font-weight: 600; display: flex; flex-wrap: wrap; gap: 8px; color: #AFC2FF; }
.crumbs a { color: #D5E0FF; text-decoration: none; }
.crumbs a:hover { color: var(--white); text-decoration: underline; }

/* ---------- lessons hub ---------- */
.hub { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding: 56px 20px 90px; }
.patch {
  position: relative; display: flex; flex-direction: column; min-height: 280px; padding: 30px 28px;
  background: var(--white); color: var(--text); text-decoration: none;
  border: 2px solid var(--ink); border-radius: 22px; box-shadow: 7px 7px 0 var(--ink); transition: transform .15s, box-shadow .15s;
}
.patch::after { content: ""; position: absolute; inset: 9px; border: 2px dashed var(--yellow); border-radius: 15px; pointer-events: none; }
a.patch:hover { transform: translate(-3px, -3px); box-shadow: 10px 10px 0 var(--ink); }
a.patch { background: var(--primary); color: var(--white); }
.patch-k { font: 700 12px var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); }
.patch h2 { font: 700 26px/1.2 var(--display); margin: 12px 0 10px; }
.patch p { margin: 0; opacity: .9; }
.patch-f { margin-top: auto; padding-top: 20px; font-weight: 800; }
.patch.soon { opacity: .7; box-shadow: 7px 7px 0 var(--line); border-color: var(--line); }
.patch.soon .patch-k { color: var(--muted); }
.patch.soon::after { border-color: var(--line); }

/* ---------- lesson list (table of contents) ---------- */
.list-page { padding: 40px 20px 90px; }
.tools { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; margin: 0 0 18px; }
.search input {
  width: min(420px, 100%); font: 600 16px var(--body); padding: 14px 18px; color: var(--ink);
  border: 2px solid var(--ink); border-radius: 14px; background: var(--white); box-shadow: 4px 4px 0 var(--ink);
}
.search { flex: 1 1 280px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter {
  font: 700 14px var(--body); padding: 9px 14px; border-radius: 999px; cursor: pointer;
  border: 2px solid var(--line); background: var(--white); color: var(--muted);
}
.filter:hover { border-color: var(--primary); color: var(--primary); }
.filter.on { background: var(--primary); border-color: var(--primary); color: var(--white); }
.toc { list-style: none; margin: 0; padding: 0; border-top: 2px dashed var(--line); }
.toc-row {
  display: grid; grid-template-columns: 84px minmax(0, 1fr) auto; gap: 20px; align-items: center;
  padding: 24px 14px; border-bottom: 2px dashed var(--line); color: var(--ink); text-decoration: none;
  border-radius: 16px; transition: background .2s, color .2s, padding .2s;
}
.toc-row .num {
  font: 800 34px/1 var(--display); color: transparent; -webkit-text-stroke: 1.6px var(--electric);
}
.toc-row .ttl { font: 600 clamp(18px, 2.2vw, 23px)/1.3 var(--display); letter-spacing: -.01em; }
.toc-row .ttl small { display: block; font: 500 15px/1.55 var(--body); color: var(--muted); margin-top: 6px; letter-spacing: 0; }
.toc-row .meta { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; white-space: nowrap; }
.toc-row .time { font-size: 14px; font-weight: 700; color: var(--muted); }
.toc-row:hover, .toc-row:focus-visible { background: var(--primary); color: var(--white); padding-left: 26px; }
.toc-row:hover .num, .toc-row:focus-visible .num { -webkit-text-stroke-color: var(--yellow); }
.toc-row:hover small, .toc-row:hover .time, .toc-row:focus-visible small, .toc-row:focus-visible .time { color: #C8D5FF; }
.toc-row:hover .chip { background: var(--yellow); color: var(--ink); }
.empty { text-align: center; color: var(--muted); font-weight: 600; padding: 40px 0; }

/* ---------- lesson ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 4px; z-index: 40; }
.progress span { display: block; height: 100%; width: 0; background: var(--yellow); }
.lesson-hero { padding-bottom: 96px; }
.lesson-hero h1 { font: 700 clamp(30px, 4.8vw, 54px)/1.12 var(--display); letter-spacing: -.02em; margin: 18px 0 16px; max-width: 900px; position: relative; }
.lesson-num {
  position: absolute; right: 20px; top: -8px; font: 800 clamp(110px, 18vw, 220px)/1 var(--display);
  color: transparent; -webkit-text-stroke: 2px rgba(250, 190, 49, .32); pointer-events: none;
}
.lesson-hero .wrap { position: relative; }
.meta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 0; }
.meta-row span { background: rgba(253, 253, 254, .1); border: 1px solid rgba(253, 253, 254, .2); padding: 6px 12px; border-radius: 999px; font-size: 14px; font-weight: 700; }

.dehqon {
  position: relative; max-width: 900px; margin: -56px 0 0; padding: 30px 34px 28px;
  background: var(--cream); color: var(--ink); border: 2px solid var(--ink); border-radius: 22px; box-shadow: 7px 7px 0 var(--ink);
}
.dehqon::before { content: ""; position: absolute; inset: 9px; border: 2px dashed rgba(2, 35, 145, .35); border-radius: 15px; pointer-events: none; }
.dehqon h2 { font: 700 15px var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--primary); margin: 0 0 10px; }
.dehqon p { font-size: 19px; line-height: 1.65; margin: 0; font-weight: 500; }

.layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 56px; padding: 40px 0 96px; }
.side-in { position: sticky; top: 104px; }
.side-t { font: 700 12px var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
.side ol { list-style: none; margin: 0; padding: 0; border-left: 2px dashed var(--line); }
.side a { display: block; padding: 7px 0 7px 16px; margin-left: -2px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; line-height: 1.4; }
.side a:hover { color: var(--primary); }
.side a.on { color: var(--primary); border-left-color: var(--yellow); }

.prose { max-width: 760px; min-width: 0; }
.prose h2 { position: relative; font: 700 clamp(23px, 2.8vw, 30px)/1.25 var(--display); color: var(--primary); letter-spacing: -.01em; margin: 64px 0 16px; padding-left: 30px; scroll-margin-top: 100px; }
.prose h2::before {
  content: ""; position: absolute; left: 2px; top: .38em; width: 14px; height: 14px; transform: rotate(45deg);
  background: var(--yellow); box-shadow: 0 0 0 3px var(--paper), 0 0 0 5px var(--cyan);
}
.prose h2:first-child { margin-top: 8px; }
.prose h3 { font: 700 20px/1.3 var(--display); color: var(--ink); margin: 36px 0 10px; }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { margin: 0 0 22px; padding-left: 24px; }
.prose li { margin: 0 0 8px; }
.prose ul { list-style: none; padding-left: 4px; }
.prose ul li { position: relative; padding-left: 28px; }
.prose ul li::before { content: ""; position: absolute; left: 6px; top: .62em; width: 9px; height: 9px; transform: rotate(45deg); border: 2px solid var(--electric); }
.prose ol li::marker { color: var(--electric); font-weight: 800; }
.prose strong { color: var(--ink); }
.prose code { font: 600 .9em ui-monospace, "Cascadia Code", Consolas, monospace; background: #E5EBFA; color: var(--primary); padding: 2px 6px; border-radius: 6px; }
.prose blockquote { margin: 28px 0; padding: 18px 24px; border-left: 6px solid var(--yellow); background: var(--white); border-radius: 0 14px 14px 0; font: 600 19px/1.6 var(--body); color: var(--ink); }

.box { margin: 28px 0; padding: 20px 24px; border-radius: 16px; border: 2px solid; }
.box .bt { display: block; font: 700 14px var(--display); margin-bottom: 6px; }
.box p:last-child { margin-bottom: 0; }
.box-tip { background: #EAF0FF; border-color: var(--electric); }
.box-tip .bt { color: var(--electric); }
.box-warn { background: var(--cream); border-color: #D99A0B; }
.box-warn .bt { color: #8A5A00; }
.box-fact { background: var(--sky); border-color: #1BA8D6; }
.box-fact .bt { color: #08739A; }

.prompt { margin: 28px 0; border: 2px solid var(--ink); border-radius: 16px; overflow: hidden; background: var(--ink); }
.prompt-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 14px 10px 18px; background: var(--primary); border-bottom: 2px dashed rgba(250, 190, 49, .6); }
.prompt-head span { font: 700 13px var(--display); color: var(--cyan); letter-spacing: .06em; text-transform: uppercase; }
.copy { font: 700 13px var(--body); border: 0; border-radius: 10px; padding: 8px 12px; cursor: pointer; background: var(--yellow); color: var(--ink); }
.copy.done { background: var(--cyan); }
.prompt pre { margin: 0; padding: 18px 20px; color: #E8EEFF; font: 500 15px/1.65 ui-monospace, "Cascadia Code", Consolas, monospace; white-space: pre-wrap; word-break: break-word; }

/* memes: flat cards with hard offset shadow */
.meme { position: relative; margin: 36px 0; background: var(--white); border: 2px solid var(--ink); border-radius: 18px; overflow: hidden; box-shadow: 7px 7px 0 var(--ink); }
.meme-tag { display: block; font: 800 11px var(--display); letter-spacing: .16em; background: var(--ink); color: var(--yellow); padding: 8px 16px; }
.meme-tag::before { content: "◆ "; color: var(--cyan); }
.meme figcaption { padding: 12px 18px; font-size: 14px; font-weight: 600; color: var(--muted); border-top: 2px solid var(--ink); background: var(--paper); }
.meme-drake .mrow { display: grid; grid-template-columns: 132px 1fr; }
.meme-drake .mrow + .mrow { border-top: 2px solid var(--ink); }
.memoji { display: grid; place-items: center; font-size: 48px; line-height: 1; white-space: nowrap; letter-spacing: -.12em; min-height: 120px; background: var(--cream); border-right: 2px solid var(--ink); }
.yes .memoji { background: var(--sky); }
.mrow p { margin: 0; padding: 20px 22px; display: flex; align-items: center; font: 600 18px/1.45 var(--display); color: var(--ink); }
.mrow.no p { color: var(--muted); }
.panels { display: grid; grid-template-columns: 1fr 1fr; }
.panel { padding: 22px 22px 24px; text-align: center; }
.panel + .panel { border-left: 2px solid var(--ink); }
.panel .lbl { display: inline-block; font: 800 12px var(--display); letter-spacing: .12em; text-transform: uppercase; padding: 6px 10px; border-radius: 8px; background: var(--sky); color: var(--primary); }
.panel.real .lbl { background: var(--yellow); color: var(--ink); }
.pe { font-size: 64px; line-height: 1.2; margin: 14px 0 8px; }
.panel p { margin: 0; font: 600 16px/1.5 var(--display); color: var(--ink); }
.classic { background: var(--primary); padding: 30px 24px; text-align: center; }
.classic p { margin: 0; font: 800 clamp(19px, 2.6vw, 26px)/1.25 var(--display); text-transform: uppercase; color: var(--white); letter-spacing: .01em; text-shadow: 2px 2px 0 var(--ink); }
.classic .ce { font-size: 96px; line-height: 1.25; margin: 14px 0; }
.brow { display: grid; grid-template-columns: 1fr 120px; }
.brow + .brow { border-top: 2px solid var(--ink); }
.brow p { margin: 0; padding: 18px 22px; display: flex; align-items: center; font: 600 17px/1.45 var(--display); color: var(--ink); }
.be { display: grid; place-items: center; white-space: nowrap; line-height: 1; border-left: 2px solid var(--ink); background: var(--paper); }
.b0 .be { font-size: 30px; } .b1 .be { font-size: 40px; background: #E8F2FF; } .b2 .be { font-size: 52px; background: var(--sky); } .b3 .be { font-size: 40px; background: var(--primary); }
.b3 p { background: var(--cream); }

/* chat jokes */
.chat { margin: 36px 0; padding: 18px 18px 14px; background: #E6ECFA; border: 2px solid var(--line); border-radius: 22px; }
.chat .t { font: 700 12px var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 2px 4px 12px; }
.msg { width: fit-content; max-width: 86%; padding: 11px 16px; margin: 0 0 10px; border-radius: 18px; font-size: 16px; line-height: 1.55; }
.msg .who { display: block; font-size: 12px; font-weight: 800; opacity: .7; margin-bottom: 2px; }
.msg.user { margin-left: auto; background: var(--electric); color: var(--white); border-bottom-right-radius: 6px; }
.msg.ai { background: var(--white); color: var(--ink); border-bottom-left-radius: 6px; }
.msg.note { width: auto; max-width: 100%; text-align: center; background: none; color: var(--muted); font-size: 14px; font-style: italic; }

/* quiz */
.quiz { margin-top: 64px; padding: 6px 0 0; }
.quiz details { background: var(--white); border: 2px solid var(--ink); border-radius: 14px; margin: 0 0 12px; box-shadow: 4px 4px 0 var(--ink); }
.quiz summary { cursor: pointer; padding: 16px 52px 16px 20px; font: 600 16px/1.45 var(--display); color: var(--ink); list-style: none; position: relative; }
.quiz summary::-webkit-details-marker { display: none; }
.quiz summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font: 800 22px var(--display); color: var(--electric); }
.quiz details[open] summary::after { content: "−"; }
.quiz details p { margin: 0; padding: 0 20px 18px; border-top: 2px dashed var(--line); padding-top: 14px; }

.prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 64px; }
.pn { display: block; padding: 18px 20px; border: 2px solid var(--ink); border-radius: 16px; background: var(--white); text-decoration: none; color: var(--ink); box-shadow: 4px 4px 0 var(--ink); transition: transform .15s, box-shadow .15s; }
.pn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.pn span { display: block; font-size: 13px; font-weight: 800; color: var(--electric); margin-bottom: 4px; }
.pn strong { font: 600 16px/1.4 var(--display); }
.pn.next { text-align: right; }

/* ---------- footer ---------- */
.site-footer { background: var(--primary); color: #CBD6F7; padding: 48px 0 40px; position: relative; }
.site-footer::before { content: ""; position: absolute; left: 0; right: 0; top: 6px; border-top: 2px dashed rgba(250, 190, 49, .75); }
.site-footer .wrap { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; }
.f-brand { display: flex; gap: 14px; align-items: center; }
.f-brand img { border-radius: 50%; }
.f-brand strong { display: block; font: 700 22px var(--display); color: var(--white); }
.f-brand span { font-size: 14px; }
.f-note, .f-copy { margin: 0; font-size: 15px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .about-grid { grid-template-columns: 1fr; }
  .hero-badge { width: min(300px, 70vw); order: -1; }
  .layer-grid, .hub { grid-template-columns: 1fr; }
  .layout { grid-template-columns: 1fr; gap: 0; }
  .side { display: none; }
  .site-footer .wrap { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .site-header .wrap { height: 66px; }
  .brand span { display: none; }
  .site-header nav a { padding: 7px 10px; font-size: 14px; }
  .site-header nav a[href$="#biz-haqimizda"] { display: none; }
  .hero { padding: 48px 0 64px; }
  .toc-row { grid-template-columns: 52px minmax(0, 1fr); gap: 14px; padding: 20px 8px; }
  .toc-row .num { font-size: 26px; }
  .toc-row .meta { grid-column: 2; flex-direction: row; align-items: center; justify-content: flex-start; }
  .dehqon { padding: 24px 22px 22px; margin-top: -48px; }
  .dehqon p { font-size: 17.5px; }
  .meme-drake .mrow { grid-template-columns: 84px 1fr; }
  .memoji { font-size: 38px; min-height: 96px; }
  .mrow p, .brow p { font-size: 15.5px; padding: 16px; }
  .panels { grid-template-columns: 1fr; }
  .panel + .panel { border-left: 0; border-top: 2px solid var(--ink); }
  .brow { grid-template-columns: 1fr 86px; }
  .b3 .be { font-size: 28px; }
  .prevnext { grid-template-columns: 1fr; }
  .pn.next { text-align: left; }
  .lesson-num { opacity: .5; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- private statistics page (/salohiddin) ---------- */
.admin-hero { padding-bottom: 56px; }
.admin { padding: 40px 20px 90px; }
.a-card { position: relative; background: var(--white); border: 2px solid var(--ink); border-radius: 18px; box-shadow: 6px 6px 0 var(--ink); padding: 24px 24px 22px; margin: 0 0 24px; }
.a-card h2 { font: 700 18px var(--display); color: var(--primary); margin: 0 0 16px; }
.a-login { max-width: 440px; margin: 0 auto; }
.a-login::after { content: ""; position: absolute; inset: 8px; border: 2px dashed var(--line); border-radius: 12px; pointer-events: none; }
.a-login form { display: grid; gap: 14px; position: relative; z-index: 1; }
.a-login label { display: grid; gap: 6px; font-weight: 700; font-size: 14px; color: var(--ink); }
.a-login input { font: 600 16px var(--body); padding: 12px 14px; border: 2px solid var(--ink); border-radius: 12px; background: var(--paper); color: var(--ink); }
.a-login .btn { justify-content: center; cursor: pointer; }
.a-login .btn:disabled { opacity: .6; cursor: wait; }
.a-err { margin: 0; min-height: 1.4em; color: #B42318; font-weight: 700; font-size: 14px; }
.a-bar { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; margin: 0 0 22px; }
.a-acts { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.a-status { font-size: 13px; font-weight: 600; color: var(--muted); }
.kpis { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; margin: 0 0 24px; }
.kpi { background: var(--primary); color: var(--white); border: 2px solid var(--ink); border-radius: 16px; padding: 16px 16px 14px; box-shadow: 5px 5px 0 var(--ink); position: relative; }
.kpi::after { content: ""; position: absolute; inset: 6px; border: 1.5px dashed rgba(250, 190, 49, .55); border-radius: 11px; pointer-events: none; }
.kpi span { display: block; font: 700 11px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); }
.kpi strong { display: block; font: 700 clamp(20px, 2.4vw, 28px)/1.2 var(--display); margin: 8px 0 4px; }
.kpi small { font-size: 12px; color: #C8D5FF; }
.kpi:nth-child(3), .kpi:nth-child(4) { background: var(--yellow); color: var(--ink); }
.kpi:nth-child(3) span, .kpi:nth-child(4) span { color: var(--primary); }
.kpi:nth-child(3) small, .kpi:nth-child(4) small { color: #5B4A12; }
.kpi:nth-child(3)::after, .kpi:nth-child(4)::after { border-color: rgba(2, 35, 145, .35); }
.a-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px; }
.legend { margin: 0; font-size: 13px; font-weight: 700; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-left: 8px; }
.lp, .a-chart .bp { background: #C9D7FF; fill: #C9D7FF; }
.lv, .a-chart .bv { background: var(--electric); fill: var(--electric); }
.a-chart svg { width: 100%; height: auto; display: block; }
.a-chart text { font: 600 11px var(--body); fill: var(--muted); }
.a-chart .axis { stroke: var(--line); stroke-width: 2; stroke-dasharray: 6 5; }
.a-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.a-wide { grid-column: 1 / -1; }
.a-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.a-table th { text-align: left; font: 700 11px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 0 8px 10px; border-bottom: 2px solid var(--ink); }
.a-table td { padding: 12px 8px; border-bottom: 2px dashed var(--line); vertical-align: top; }
.a-table td small { display: block; color: var(--muted); font-size: 12px; }
.a-table .n { text-align: right; white-space: nowrap; font-weight: 700; }
.a-share { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.a-share li { position: relative; display: flex; justify-content: space-between; padding: 10px 12px; border-radius: 10px; background: var(--paper); overflow: hidden; font-weight: 600; }
.a-share li span, .a-share li b { position: relative; z-index: 1; }
.a-share li i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--sky); border-right: 3px solid var(--cyan); }
.empty-row { color: var(--muted); text-align: center; font-style: italic; }
@media (max-width: 1000px) { .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .a-grid { grid-template-columns: 1fr; }
  .a-card { padding: 18px 16px; }
}