/* Sadaqah-e-Jariyah — white, quiet, precise. */
:root {
  --bg: #ffffff;
  --bg2: #f6f6f4;
  --bg3: #efefec;
  --ink: #0a0a0b;
  --ink2: #3b3b40;
  --mute: #8a8a91;
  --line: #ececef;
  --line2: #d9d9de;
  --accent: #ff4a1c;
  --k-pdf: #e5401a;
  --k-video: #2a5cff;
  --k-img: #0e9d6c;
  --k-text: #7a3cff;
  --k-nb: #d98300;
  --k-office: #0b7fb5;
  --r: 14px;
  --w: 1180px;
  --bar: 56px;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --dot: "Doto", var(--mono);
  --ease: cubic-bezier(.2, .8, .2, 1);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 120px; }
html, body { overflow-x: clip; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); -webkit-font-smoothing: antialiased; min-height: 100vh; display: flex; flex-direction: column; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
kbd { font: 500 10.5px/1 var(--mono); border: 1px solid var(--line2); border-bottom-width: 2px; border-radius: 5px; padding: 3px 5px; color: var(--mute); background: #fff; }
::selection { background: var(--ink); color: #fff; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 6px; }
code { font: 12px var(--mono); background: var(--bg2); padding: 2px 6px; border-radius: 5px; word-break: break-all; }

/* ── top bar ───────────────────────────── */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 31; background: #fff; }
.bar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30; display: flex; align-items: center; gap: 22px; height: var(--bar); padding-block: 0; padding-left: max(16px, env(safe-area-inset-left, 0px), calc((100vw - var(--w)) / 2 + 16px)); padding-right: max(16px, env(safe-area-inset-right, 0px), calc((100vw - var(--w)) / 2 + 16px)); background: rgba(255,255,255,.82); backdrop-filter: saturate(1.6) blur(16px); -webkit-backdrop-filter: saturate(1.6) blur(16px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font: 600 11.5px var(--mono); letter-spacing: .16em; white-space: nowrap; }
.mark { width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid var(--ink); display: grid; place-items: center; flex: none; }
.mark::after { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--ink); transition: transform .4s var(--ease); }
.brand:hover .mark::after { transform: scale(1.6); }
#crumbs { flex: 1; min-width: 0; display: flex; align-items: center; gap: 8px; font: 12px var(--mono); color: var(--mute); white-space: nowrap; overflow: hidden; mask-image: linear-gradient(90deg, #000 85%, transparent); }
#crumbs a { transition: color .15s; overflow: hidden; text-overflow: ellipsis; }
#crumbs a:hover, #crumbs a:last-child { color: var(--ink); }
#crumbs .sep { color: var(--line2); }
.search-btn { display: flex; align-items: center; gap: 10px; height: 34px; padding: 0 6px 0 12px; border: 1px solid var(--line2); border-radius: 999px; color: var(--mute); font-size: 13px; transition: border-color .2s, color .2s, box-shadow .2s; background: #fff; }
.search-btn:hover { border-color: var(--ink); color: var(--ink); box-shadow: 0 0 0 4px var(--bg2); }

main { width: 100%; max-width: var(--w); margin: 0 auto; padding-block: 0 96px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); flex: 1; }
main > * { animation: rise .5s var(--ease) both; }
main > *:nth-child(2) { animation-delay: .04s; }
main > *:nth-child(3) { animation-delay: .08s; }
main > *:nth-child(4) { animation-delay: .12s; }
main > *:nth-child(n+5) { animation-delay: .16s; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
.loading { padding: 120px 0; text-align: center; font: 12px var(--mono); color: var(--mute); }
.spinner { display: inline-block; width: 10px; height: 10px; border: 1.5px solid var(--line2); border-top-color: var(--ink); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -1px; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── shared bits ───────────────────────── */
.eyebrow { font: 500 11px var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.eyebrow a:hover { color: var(--ink); }
.label { font: 500 11px var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); display: flex; align-items: center; gap: 14px; margin: 64px 0 18px; }
.label::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.label b { color: var(--ink); font-weight: 500; }
.pulse { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(255,74,28,.5); animation: pulse 2.4s infinite; vertical-align: 1px; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(255,74,28,.45); } 70% { box-shadow: 0 0 0 8px rgba(255,74,28,0); } 100% { box-shadow: 0 0 0 0 rgba(255,74,28,0); } }
.hud { --c: var(--line2); background:
  linear-gradient(var(--c),var(--c)) 0 0/12px 1px, linear-gradient(var(--c),var(--c)) 0 0/1px 12px,
  linear-gradient(var(--c),var(--c)) 100% 0/12px 1px, linear-gradient(var(--c),var(--c)) 100% 0/1px 12px,
  linear-gradient(var(--c),var(--c)) 0 100%/12px 1px, linear-gradient(var(--c),var(--c)) 0 100%/1px 12px,
  linear-gradient(var(--c),var(--c)) 100% 100%/12px 1px, linear-gradient(var(--c),var(--c)) 100% 100%/1px 12px;
  background-repeat: no-repeat; }

/* ── hero ──────────────────────────────── */
.hero { position: relative; padding: 104px 0 72px; isolation: isolate; }
.hero::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 100vw; transform: translateX(-50%); background-image: radial-gradient(circle, #cfcfd6 1px, transparent 1.3px); background-size: 22px 22px; -webkit-mask-image: radial-gradient(ellipse 55% 75% at 28% 42%, #000 0%, transparent 78%); mask-image: radial-gradient(ellipse 55% 75% at 28% 42%, #000 0%, transparent 78%); z-index: -1; }
.display { font-family: var(--dot); font-weight: 900; font-size: clamp(52px, 11.5vw, 150px); line-height: .88; letter-spacing: -.01em; margin: 28px 0 0; text-transform: uppercase; }
.display span { display: block; }
.display .thin { color: transparent; -webkit-text-stroke: 1.2px var(--ink); }
.arabic { font: 400 22px/1 "Geeza Pro", "Noto Naskh Arabic", "Amiri", serif; color: var(--mute); margin: 26px 0 0; direction: rtl; text-align: left; }
.lede { max-width: 560px; font-size: 19px; line-height: 1.5; color: var(--ink2); margin: 22px 0 0; font-weight: 300; letter-spacing: -.01em; }
.hero-search { margin-top: 36px; display: flex; align-items: center; gap: 14px; width: min(560px, 100%); height: 56px; padding: 0 12px 0 20px; border: 1px solid var(--line2); border-radius: 999px; background: rgba(255,255,255,.9); color: var(--mute); font-size: 15px; text-align: left; transition: border-color .2s, box-shadow .3s; }
.hero-search:hover { border-color: var(--ink); box-shadow: 0 10px 40px -12px rgba(0,0,0,.15), 0 0 0 6px var(--bg2); color: var(--ink2); }
.hero-search span { flex: 1; }

/* ── stats ─────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 26px 22px 24px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat .num { font: 400 34px/1 var(--mono); letter-spacing: -.04em; }
.stat .num small { font-size: 15px; color: var(--mute); margin-left: 3px; letter-spacing: 0; }
.stat .cap { font: 500 10.5px var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); margin-top: 12px; }

/* ── branch cards ──────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.card { position: relative; display: flex; flex-direction: column; min-height: 230px; padding: 26px 26px 22px; border-radius: 2px; background-color: #fff; transition: background-color .3s, --c .3s; overflow: hidden; }
.card:hover { --c: var(--ink); background-color: var(--bg2); }
.card .idx { font: 500 11px var(--mono); letter-spacing: .14em; color: var(--mute); text-transform: uppercase; }
.card h3 { font-size: 30px; line-height: 1.05; font-weight: 500; letter-spacing: -.03em; margin: 18px 0 0; max-width: 85%; }
.card .sub { margin-top: auto; padding-top: 28px; display: flex; flex-wrap: wrap; gap: 6px 18px; font: 12px var(--mono); color: var(--mute); }
.card .sub b { color: var(--ink); font-weight: 500; }
.card .go { position: absolute; top: 22px; right: 22px; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line2); display: grid; place-items: center; transition: transform .4s var(--ease), background .3s, color .3s, border-color .3s; }
.card:hover .go { background: var(--ink); color: #fff; border-color: var(--ink); transform: rotate(-45deg); }
.card .scan { position: absolute; left: 0; right: 0; height: 40%; top: -40%; background: linear-gradient(180deg, transparent, rgba(10,10,11,.035), transparent); pointer-events: none; }
.card:hover .scan { animation: scan 1.4s var(--ease); }
@keyframes scan { to { top: 110%; } }
.card.small { min-height: 150px; }
.card.small h3 { font-size: 21px; }

/* ── page header ───────────────────────── */
.page-head { padding: 64px 0 36px; border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(36px, 6vw, 64px); line-height: 1; letter-spacing: -.035em; font-weight: 500; margin: 18px 0 0; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-top: 20px; font: 12px var(--mono); color: var(--mute); }
.meta b { color: var(--ink); font-weight: 500; }
.codes { display: flex; gap: 8px; flex-wrap: wrap; }
.code-chip { font: 500 12px var(--mono); letter-spacing: .06em; padding: 5px 9px; border: 1px solid var(--ink); border-radius: 4px; }
.code-chip + .code-chip { border-color: var(--line2); color: var(--mute); }

/* ── semester groups / course rows ─────── */
.group { margin-top: 56px; }
.group-head { display: flex; align-items: baseline; gap: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--ink); }
.group-head .gi { font: 500 11px var(--mono); color: var(--mute); letter-spacing: .1em; width: 44px; }
.group-head h2 { font-size: 22px; font-weight: 500; letter-spacing: -.02em; margin: 0; flex: 1; }
.group-head h2 a:hover { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.group-head .gc { font: 12px var(--mono); color: var(--mute); }
.course { display: grid; grid-template-columns: 44px 150px 1fr auto 80px 20px; align-items: center; gap: 16px; min-height: 60px; padding: 10px 0; border-bottom: 1px solid var(--line); transition: background .2s, padding .3s var(--ease); position: relative; }
.course:hover { background: var(--bg2); padding-left: 10px; padding-right: 10px; }
.course .ci { font: 11px var(--mono); color: var(--line2); }
.course .cc { font: 500 12px/1.35 var(--mono); letter-spacing: .03em; }
.course .cc i { font-style: normal; color: var(--mute); font-weight: 400; display: block; }
.course .ct { font-size: 16px; letter-spacing: -.01em; }
.course .cn { font: 12px var(--mono); color: var(--mute); text-align: right; }
.course .arr { color: var(--mute); transition: transform .3s var(--ease), color .2s; }
.course:hover .arr { transform: translateX(4px); color: var(--ink); }
.course.dim .ct { color: var(--mute); }
.cov { display: flex; gap: 3px; }
.cov i { width: 7px; height: 14px; border-radius: 1.5px; background: var(--ink); }
.cov i.o { background: transparent; box-shadow: inset 0 0 0 1px var(--line2); }

/* ── course page ───────────────────────── */
.secnav { position: sticky; top: calc(var(--bar) + env(safe-area-inset-top, 0px)); z-index: 10; display: flex; gap: 6px; padding: 14px 0; margin: 0 -16px; padding-left: 16px; padding-right: 16px; overflow-x: auto; scrollbar-width: none; background: rgba(255,255,255,.88); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.secnav::-webkit-scrollbar { display: none; }
.chip { flex: none; display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px; border: 1px solid var(--line2); border-radius: 999px; font: 500 12px var(--mono); white-space: nowrap; transition: all .2s; }
.chip em { font-style: normal; color: var(--mute); font-weight: 400; }
.chip:hover { border-color: var(--ink); }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip.on em { color: rgba(255,255,255,.6); }
.chip.empty { border-style: dashed; color: var(--mute); }
.sec { padding-top: 48px; }
.sec-head { display: flex; align-items: baseline; gap: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--ink); }
.sec-head .si { font: 500 11px var(--mono); color: var(--mute); width: 30px; }
.sec-head h2 { margin: 0; font-size: 20px; font-weight: 500; letter-spacing: -.02em; flex: 1; }
.sec-head .sc { font: 12px var(--mono); color: var(--mute); }
.sub-head { display: flex; align-items: center; gap: 10px; margin: 22px 0 0; padding: 10px 0; font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); border-bottom: 1px solid var(--line); }
.sub-head::before { content: "└"; color: var(--line2); }
.empty { margin-top: 14px; padding: 18px 20px; border: 1px dashed var(--line2); border-radius: 10px; font: 12px/1.7 var(--mono); color: var(--mute); }

/* ── files ─────────────────────────────── */
.files { display: flex; flex-direction: column; }
.file { display: grid; grid-template-columns: 48px 1fr 84px 92px; align-items: center; gap: 14px; min-height: 50px; padding: 8px 0; border-bottom: 1px solid var(--line); transition: background .15s, padding .25s var(--ease); }
.file:hover { background: var(--bg2); padding-left: 10px; padding-right: 10px; }
.file.cur { background: var(--bg3); padding-left: 10px; padding-right: 10px; box-shadow: inset 2px 0 0 var(--ink); }
.fname { min-width: 0; font-size: 14.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fname small { display: block; font: 11.5px var(--mono); color: var(--mute); overflow: hidden; text-overflow: ellipsis; margin-top: 1px; }
.fsize, .fdate { font: 12px var(--mono); color: var(--mute); text-align: right; white-space: nowrap; }
.ext { --k: var(--mute); flex: none; display: inline-grid; place-items: center; width: 42px; height: 22px; font: 600 9.5px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--k); border: 1px solid color-mix(in srgb, var(--k) 35%, transparent); background: color-mix(in srgb, var(--k) 6%, #fff); border-radius: 4px; overflow: hidden; }
.k-pdf { --k: var(--k-pdf); } .k-video, .k-audio { --k: var(--k-video); } .k-img { --k: var(--k-img); } .k-text, .k-md { --k: var(--k-text); } .k-nb { --k: var(--k-nb); } .k-office { --k: var(--k-office); } .k-dir { --k: var(--ink); }
.more { margin-top: 12px; font: 12px var(--mono); color: var(--mute); }
.more button { text-decoration: underline; text-underline-offset: 3px; }
.more button:hover { color: var(--ink); }

/* ── drawer ────────────────────────────── */
.scrim { position: fixed; inset: 0; z-index: 40; background: rgba(250,250,250,.55); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); opacity: 0; pointer-events: none; transition: opacity .3s; }
.scrim.on { opacity: 1; pointer-events: auto; }
.drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: 50; width: min(1040px, 94vw); display: flex; flex-direction: column; background: #fff; border-left: 1px solid var(--line2); box-shadow: -40px 0 100px -20px rgba(0,0,0,.14); transform: translateX(102%); transition: transform .45s var(--ease); visibility: hidden; }
.drawer.on { transform: none; visibility: visible; }
.dr-head { padding-top: max(14px, env(safe-area-inset-top, 0px)) !important; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.dr-title { display: flex; align-items: center; gap: 14px; min-width: 0; }
.dr-text { min-width: 0; }
.dr-name { font-size: 15px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dr-path { font: 11.5px var(--mono); color: var(--mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.dr-actions { display: flex; align-items: center; gap: 6px; flex: none; }
.dr-pos { font: 11px var(--mono); color: var(--mute); min-width: 44px; text-align: center; }
.icon-btn { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line2); display: grid; place-items: center; font-size: 13px; transition: all .2s; }
.icon-btn:hover:not(:disabled) { border-color: var(--ink); background: var(--ink); color: #fff; }
.icon-btn:disabled { opacity: .35; cursor: default; }
.pill-btn { height: 34px; display: inline-flex; align-items: center; padding: 0 14px; border: 1px solid var(--line2); border-radius: 999px; font: 500 12px var(--mono); transition: all .2s; white-space: nowrap; }
.pill-btn:hover { border-color: var(--ink); }
.pill-btn.solid { background: var(--ink); color: #fff; border-color: var(--ink); }
.pill-btn.solid:hover { background: #2a2a2e; }
.dr-body { flex: 1; min-height: 0; overflow: auto; background: var(--bg2); position: relative; }
.dr-body iframe { width: 100%; height: 100%; border: 0; display: block; background: #fff; }
.dr-body .media { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.dr-body img { max-width: 100%; max-height: calc(100vh - 120px); box-shadow: 0 20px 60px -20px rgba(0,0,0,.25); background: #fff; }
.dr-body video { max-width: 100%; max-height: calc(100vh - 120px); background: #000; border-radius: 6px; }
.code { margin: 0; padding: 22px 26px; font: 12.5px/1.65 var(--mono); white-space: pre; tab-size: 4; color: var(--ink2); background: #fff; min-height: 100%; counter-reset: ln; }
.code.wrap { white-space: pre-wrap; word-break: break-word; }
.nofile { min-height: 100%; display: grid; place-items: center; text-align: center; padding: 40px; }
.nofile .big { font: 900 72px/1 var(--dot); letter-spacing: .02em; text-transform: uppercase; color: var(--ink); }
.nofile p { font: 12px/1.7 var(--mono); color: var(--mute); margin: 18px 0 22px; }
.prose { max-width: 760px; margin: 0 auto; padding: 36px 32px 64px; background: #fff; min-height: 100%; font-size: 15px; line-height: 1.7; }
.prose h1, .prose h2, .prose h3 { letter-spacing: -.02em; font-weight: 500; line-height: 1.2; }
.prose table { border-collapse: collapse; font-size: 13px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 10px; }
.prose pre { background: var(--bg2); padding: 14px; overflow: auto; border-radius: 8px; }
.nb { max-width: 920px; margin: 0 auto; padding: 24px 24px 64px; }
.nb-cell { margin: 0 0 14px; }
.nb-md { padding: 4px 4px; font-size: 14.5px; line-height: 1.65; white-space: pre-wrap; }
.nb-in { display: grid; grid-template-columns: 52px 1fr; }
.nb-in > span { font: 11px var(--mono); color: var(--k-text); padding-top: 12px; }
.nb-in pre { margin: 0; padding: 12px 14px; background: #fff; border: 1px solid var(--line); border-radius: 8px; font: 12.5px/1.6 var(--mono); overflow: auto; }
.nb-out { margin: 6px 0 0 52px; font: 12px/1.55 var(--mono); color: var(--ink2); white-space: pre-wrap; overflow: auto; max-height: 420px; }
.nb-out img { max-width: 100%; box-shadow: none; }

/* ── search palette ────────────────────── */
.palette { position: fixed; inset: 0; z-index: 60; background: rgba(250,250,250,.72); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); display: flex; justify-content: center; align-items: flex-start; padding: 11vh 16px 16px; animation: fade .2s both; }
.palette[hidden] { display: none; }
@keyframes fade { from { opacity: 0; } }
.pal-box { width: min(720px, 100%); background: #fff; border: 1px solid var(--line2); border-radius: 18px; box-shadow: 0 40px 120px -30px rgba(0,0,0,.3), 0 0 0 6px rgba(255,255,255,.6); overflow: hidden; animation: pop .3s var(--ease) both; display: flex; flex-direction: column; max-height: 78vh; }
@keyframes pop { from { opacity: 0; transform: translateY(-8px) scale(.985); } }
.pal-input { display: flex; align-items: center; gap: 14px; padding: 0 18px; height: 64px; border-bottom: 1px solid var(--line); color: var(--mute); }
.pal-input input { flex: 1; border: 0; outline: 0; font: 400 18px var(--sans); color: var(--ink); background: none; min-width: 0; letter-spacing: -.01em; }
.pal-input input::placeholder { color: #b4b4ba; }
.pal-results { overflow: auto; padding: 6px; flex: 1; }
.res { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 12px; padding: 9px 12px; border-radius: 10px; cursor: pointer; }
.res .rn { min-width: 0; font-size: 14.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.res .rn mark { background: none; color: inherit; font-weight: 600; box-shadow: inset 0 -2px 0 var(--accent); }
.res .rc { display: block; font: 11.5px var(--mono); color: var(--mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 1px; }
.res .rs { font: 11px var(--mono); color: var(--mute); }
.res.on { background: var(--ink); color: #fff; }
.res.on .rc, .res.on .rs { color: rgba(255,255,255,.55); }
.res.on .ext { --k: #fff; background: transparent; border-color: rgba(255,255,255,.35); }
.res.on mark { box-shadow: inset 0 -2px 0 #fff; }
.pal-group { font: 500 10.5px var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); padding: 12px 12px 6px; }
.pal-empty { padding: 36px 16px; text-align: center; font: 12px var(--mono); color: var(--mute); }
.pal-foot { display: flex; gap: 18px; align-items: center; padding: 10px 16px; border-top: 1px solid var(--line); font: 11px var(--mono); color: var(--mute); }
.pal-foot span { display: inline-flex; align-items: center; gap: 4px; }
.pal-tip { margin-left: auto; }

/* ── footer ────────────────────────────── */
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 22px max(16px, calc((100vw - var(--w)) / 2 + 16px)); border-top: 1px solid var(--line); font: 11px var(--mono); color: var(--mute); }
.foot-quote { font-style: italic; }

/* ── small screens ─────────────────────── */
@media (max-width: 760px) {
  .brand-text { display: none; }
  .search-btn span, .search-btn kbd { display: none; }
  .search-btn { padding: 0 10px; }
  .hero { padding: 64px 0 48px; }
  .lede { font-size: 17px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .stat .num { font-size: 28px; }
  .cards { grid-template-columns: 1fr; }
  .course { grid-template-columns: 1fr auto; gap: 4px 12px; }
  .course .ci, .course .arr, .course .cov { display: none; }
  .group-head { flex-wrap: wrap; gap: 4px 12px; }
  .group-head .gi { width: auto; }
  .group-head h2 { font-size: 20px; flex-basis: 100%; order: 2; }
  .group-head .gc { order: 3; }
  .page-head { padding: 44px 0 28px; }
  .sec-head .si { display: none; }
  .course .cc { grid-column: 1 / -1; }
  .course .cc i { display: inline; margin-left: 6px; }
  .file { grid-template-columns: 44px 1fr auto; }
  .fdate { display: none; }
  .drawer { width: 100vw; }
  .dr-head { flex-wrap: wrap; }
  .dr-actions { width: 100%; justify-content: flex-end; }
  .pal-tip { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.back-btn { flex: none; width: 32px; height: 32px; margin-right: -10px; }

/* ── contribute ────────────────────────── */
.contrib-btn { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px 0 10px; border-radius: 999px; background: var(--ink); color: #fff; font: 500 12.5px var(--mono); white-space: nowrap; transition: transform .2s var(--ease), box-shadow .2s; }
.contrib-btn:hover { box-shadow: 0 0 0 4px var(--bg3); }
.contrib-btn .plus { width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.16); font-size: 14px; line-height: 1; }
.cta { position: relative; display: flex; flex-direction: column; gap: 12px; margin-top: 64px; padding: 28px 80px 28px 26px; background-color: #fff; transition: background-color .3s; }
.cta:hover { --c: var(--ink); background-color: var(--bg2); }
.cta-t { font-size: clamp(19px, 2.4vw, 24px); letter-spacing: -.02em; line-height: 1.3; max-width: 640px; text-wrap: balance; }
.cta .go { position: absolute; right: 24px; top: 50%; translate: 0 -50%; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line2); display: grid; place-items: center; transition: all .3s var(--ease); }
.cta:hover .go { background: var(--ink); color: #fff; border-color: var(--ink); transform: rotate(-45deg); }
.lede-sm { max-width: 620px; margin: 18px 0 0; font-size: 17px; line-height: 1.55; color: var(--ink2); font-weight: 300; }
.notice { margin-top: 28px; padding: 14px 18px; border: 1px solid var(--line2); border-radius: 10px; background: var(--bg2); font-size: 14px; color: var(--ink2); }
.notice.warn { border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: color-mix(in srgb, var(--accent) 5%, #fff); }
.cform { display: flex; flex-direction: column; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 16px; padding: 40px 0; border-bottom: 1px solid var(--line); }
.step-n { font: 500 12px var(--mono); color: var(--mute); padding-top: 6px; letter-spacing: .1em; }
.step-body { min-width: 0; display: flex; flex-direction: column; gap: 18px; max-width: 720px; }
.step-body h2 { margin: 0; font-size: 24px; font-weight: 500; letter-spacing: -.02em; }
.drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 168px; padding: 24px; text-align: center; cursor: pointer; background-color: var(--bg2); border-radius: 4px; transition: background-color .2s; }
.drop:hover, .drop.over { --c: var(--ink); background-color: var(--bg3); }
.drop.over .drop-main { transform: scale(1.03); }
.drop-main { font-size: 18px; letter-spacing: -.01em; transition: transform .2s var(--ease); }
.drop-main u { text-underline-offset: 4px; text-decoration-thickness: 1px; }
.drop-sub { font: 11.5px var(--mono); color: var(--mute); }
.flist:empty { display: none; }
.frow { display: grid; grid-template-columns: 48px 1fr 84px 34px; align-items: center; gap: 14px; min-height: 50px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.frow.bad .fname small { color: var(--accent); }
.frow.done .fname small { color: var(--k-img); }
.fsum { font: 12px var(--mono); color: var(--mute); padding-top: 10px; text-align: right; }
.icon-btn.sm { width: 28px; height: 28px; font-size: 11px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field > span { font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink2); }
.field > span em { font-style: normal; text-transform: none; letter-spacing: 0; color: var(--mute); font-weight: 400; margin-left: 6px; }
.field input, .field textarea { width: 100%; font: 400 15.5px/1.5 var(--sans); color: var(--ink); background: #fff; border: 1px solid var(--line2); border-radius: 10px; padding: 12px 14px; outline: none; transition: border-color .2s, box-shadow .2s; resize: vertical; }
.field input:focus, .field textarea:focus { border-color: var(--ink); box-shadow: 0 0 0 4px var(--bg2); }
.field input::placeholder, .field textarea::placeholder { color: #b0b0b6; }
.quick { display: flex; flex-wrap: wrap; gap: 6px; margin-top: -6px; }
.quick .chip { height: 28px; font-size: 11.5px; }
.check { display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: start; font-size: 14.5px; line-height: 1.5; color: var(--ink2); cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--ink); }
.ts { min-height: 0; }
.err { padding: 12px 16px; border-radius: 10px; background: color-mix(in srgb, var(--accent) 7%, #fff); color: #b3300f; font-size: 14px; border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); }
.submit { align-self: flex-start; display: inline-flex; align-items: center; gap: 12px; height: 52px; padding: 0 26px; border-radius: 999px; background: var(--ink); color: #fff; font: 500 15px var(--sans); transition: box-shadow .2s, opacity .2s; }
.submit span { transition: transform .3s var(--ease); }
.submit:hover:not(:disabled) { box-shadow: 0 0 0 5px var(--bg3); }
.submit:hover:not(:disabled) span { transform: translateX(4px); }
.submit:disabled { opacity: .35; cursor: not-allowed; }
.fine { font: 11.5px/1.6 var(--mono); color: var(--mute); margin: 0; }
.cprog { padding: 40px 0; display: flex; flex-direction: column; gap: 18px; }
.cp-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.cp-head b { color: var(--ink); font-weight: 500; }
.cp-pct { font: 400 44px/1 var(--mono); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.bar-track { height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; }
.bar-fill { height: 100%; width: 0; background: var(--ink); transition: width .3s var(--ease); }
.mono-h { font-family: var(--mono) !important; font-weight: 400 !important; letter-spacing: -.02em !important; }
.stages { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stages li { position: relative; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; padding: 22px 16px 0 0; color: var(--mute); }
.stages li .dot { width: 12px; height: 12px; border-radius: 50%; border: 1.5px solid var(--line2); background: #fff; margin-top: -29px; flex: none; }
.stages li.past { color: var(--ink2); }
.stages li.past .dot { background: var(--ink); border-color: var(--ink); }
.stages li.now { color: var(--ink); }
.stages li.now .dot { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 18%, transparent); animation: pulse 2.4s infinite; }
.stages b { font-weight: 500; font-size: 16px; }
.stages p { margin: 6px 0 0; font-size: 13.5px; line-height: 1.5; color: var(--ink2); max-width: 240px; }
.stnote { margin-top: 28px; padding: 16px 18px; border-left: 2px solid var(--ink); background: var(--bg2); }
.stnote p { margin: 8px 0 0; font-size: 14.5px; }
.stmeta { margin-top: 18px; }
.stmeta a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) {
  .contrib-text { display: none; }
  .contrib-btn { padding: 0 8px; }
  .step { grid-template-columns: 1fr; gap: 10px; padding: 32px 0; }
  .frow { grid-template-columns: 44px 1fr auto 30px; }
  .stages { grid-template-columns: 1fr 1fr; row-gap: 24px; }
  .cta { padding-right: 70px; }
  .submit { align-self: stretch; justify-content: center; }
}