/* Layout: a reading-room library. Sticky top bar, asymmetric hero with search,
   then a shelf grid of subjects; series pages are a two-column "book + chapters" view
   that collapses to one column on phones. A persistent listening bar sits at the bottom. */
:root {
  --bg: #f2f5f4;
  --surface: #ffffff;
  --surface-2: #e8eeec;
  --ink: #0f2a2e;
  --muted: #566b6d;
  --line: #d6dfdd;
  --brand: #0e5a55;
  --brand-soft: #d7ebe7;
  --accent: #a87412;
  --accent-soft: #f6ead2;
  --warn: #9a3b1c;
  --pattern: rgba(14, 90, 85, .07);
  --shadow: 0 1px 2px rgba(15, 42, 46, .06), 0 8px 24px rgba(15, 42, 46, .06);
  --f-display: "Reem Kufi", "Readex Pro", "Segoe UI", Tahoma, sans-serif;
  --f-body: "Readex Pro", "Segoe UI", Tahoma, "Noto Sans Arabic", sans-serif;
  --f-book: "Amiri", "Traditional Arabic", "Times New Roman", serif;
  --r: 14px;
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a1415; --surface: #112123; --surface-2: #172c2e; --ink: #e4eeed; --muted: #93a9aa;
    --line: #233b3d; --brand: #62c3b6; --brand-soft: #173a37; --accent: #e3b45c; --accent-soft: #3a2e17;
    --warn: #f08a66; --pattern: rgba(98, 195, 182, .06);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0a1415; --surface: #112123; --surface-2: #172c2e; --ink: #e4eeed; --muted: #93a9aa;
  --line: #233b3d; --brand: #62c3b6; --brand-soft: #173a37; --accent: #e3b45c; --accent-soft: #3a2e17;
  --warn: #f08a66; --pattern: rgba(98, 195, 182, .06);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25); color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-body);
  font-size: 16px; line-height: 1.7; min-height: 100vh; padding-bottom: 24px;
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--surface); }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { text-wrap: balance; margin: 0; }
.wrap { max-width: 1180px; margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
.num { font-variant-numeric: tabular-nums; }

/* top bar */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; padding-block: 10px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-size: 1.15rem; white-space: nowrap; }
.logo-mark { width: 34px; height: 34px; flex: none; }
.logo small { display: block; font-family: var(--f-body); font-size: .72rem; color: var(--muted); line-height: 1.2; }
.nav { display: flex; gap: 4px; margin-inline-start: auto; }
.nav a { padding: 6px 12px; border-radius: 999px; color: var(--muted); font-size: .92rem; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand); }
.icon-btn { border: 1px solid var(--line); background: var(--surface); width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; cursor: pointer; flex: none; }
.icon-btn svg { width: 20px; height: 20px; }
@media (max-width: 760px) {
  .nav { display: none; }
  #theme { margin-inline-start: auto; }
  .logo { font-size: 1rem; gap: 8px; }
  .logo-mark { width: 30px; height: 30px; }
}

/* hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background:
  radial-gradient(1200px 400px at 85% -10%, var(--brand-soft), transparent 60%), var(--bg); }
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64' viewBox='0 0 64 64'%3E%3Cpath d='M32 6l7.5 18.5L58 32l-18.5 7.5L32 58l-7.5-18.5L6 32l18.5-7.5z' fill='none' stroke='%230e5a55' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 64px; opacity: .07; mask-image: linear-gradient(to left, #000, transparent 70%); -webkit-mask-image: linear-gradient(to left, #000, transparent 70%); }
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; padding-block: 56px 44px; align-items: end; }
.eyebrow { font-size: .8rem; letter-spacing: .04em; color: var(--accent); font-weight: 600; }
.hero h1 { font-family: var(--f-display); font-weight: 600; font-size: clamp(2rem, 4.6vw, 3.4rem); line-height: 1.25; margin-top: 8px; }
.hero h1 span { color: var(--brand); }
.hero p.lede { color: var(--muted); max-width: 52ch; margin: 14px 0 22px; font-size: 1.05rem; }
.searchbox { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 6px 14px; box-shadow: var(--shadow); max-width: 620px; }
.searchbox svg { width: 20px; height: 20px; color: var(--muted); flex: none; }
.searchbox input { flex: 1; min-width: 0; border: 0; background: transparent; font: inherit; font-size: 1.05rem; padding: 10px 0; color: var(--ink); outline: none; }
.searchbox kbd { font-family: var(--f-body); font-size: .75rem; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 4px 12px; font-size: .85rem; color: var(--muted); cursor: pointer; }
.chip:hover { border-color: var(--brand); color: var(--brand); }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.stat { background: var(--surface); padding: 16px 18px; }
.stat b { display: block; font-family: var(--f-display); font-size: 1.9rem; font-weight: 600; line-height: 1.2; color: var(--brand); }
.stat span { color: var(--muted); font-size: .85rem; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; padding-block: 36px 28px; gap: 24px; } }

/* sections */
section.block { padding-block: 40px 8px; }
.block-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.block-head h2 { font-family: var(--f-display); font-weight: 500; font-size: 1.55rem; }
.block-head p { color: var(--muted); margin: 0; font-size: .92rem; }

.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.subject { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); transition: transform .15s ease, border-color .15s ease; min-height: 132px; }
.subject:hover { transform: translateY(-2px); border-color: var(--brand); }
.subject .glyph { width: 40px; height: 40px; border-radius: 12px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; }
.subject .glyph svg { width: 22px; height: 22px; }
.subject h3 { font-size: 1.08rem; font-weight: 600; margin-top: 6px; }
.subject .meta { color: var(--muted); font-size: .85rem; margin-top: auto; }

/* start path */
.path { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; counter-reset: step; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; padding: 14px 16px; border-radius: var(--r); background: var(--surface); border: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step, arabic-indic); font-family: var(--f-display); font-size: 1.3rem; color: var(--accent); width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-soft); }
.step h3 { font-family: var(--f-book); font-size: 1.2rem; font-weight: 700; line-height: 1.4; }
.step p { margin: 2px 0 0; color: var(--muted); font-size: .85rem; }
.step:hover { border-color: var(--accent); }

/* series list */
.series-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
@media (max-width: 400px) { .series-list { grid-template-columns: 1fr; } }
.book { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); align-items: start; }
.book:hover { border-color: var(--brand); }
.spine { width: 44px; height: 58px; border-radius: 4px 8px 8px 4px; background: linear-gradient(90deg, color-mix(in srgb, var(--brand) 70%, #000) 0 6px, var(--brand) 6px); position: relative; display: grid; place-items: center; color: var(--surface); font-family: var(--f-display); font-size: .8rem; }
.spine.alt { background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 70%, #000) 0 6px, var(--accent) 6px); }
.book h3 { font-family: var(--f-book); font-size: 1.18rem; font-weight: 700; line-height: 1.45; }
.book .meta { display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--muted); font-size: .82rem; margin-top: 6px; }
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 1px 9px; border-radius: 999px; background: var(--surface-2); font-size: .78rem; color: var(--muted); }
.pill.fix { background: var(--accent-soft); color: var(--accent); }
.pill.empty { background: transparent; border: 1px dashed var(--line); }

/* page header */
.page-head { padding-block: 32px 20px; border-bottom: 1px solid var(--line); background: var(--surface); }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: .85rem; color: var(--muted); margin-bottom: 10px; }
.crumbs a:hover { color: var(--brand); }
.crumbs span[aria-hidden] { opacity: .5; }
.page-head h1 { font-family: var(--f-book); font-weight: 700; font-size: clamp(1.6rem, 3.6vw, 2.4rem); line-height: 1.4; }
.page-head h1.kufi { font-family: var(--f-display); font-weight: 600; }
.page-head .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-size: .92rem; }
.btn svg { width: 18px; height: 18px; }
.btn.primary { background: var(--brand); color: var(--surface); border-color: var(--brand); }
.btn:hover { border-color: var(--brand); }
.filter { flex: 1; min-width: 180px; max-width: 360px; border: 1px solid var(--line); border-radius: 12px; padding: 9px 14px; background: var(--bg); font: inherit; font-size: .92rem; color: var(--ink); }
.progress { height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; margin-top: 14px; max-width: 420px; }
.progress i { display: block; height: 100%; background: var(--accent); border-radius: 99px; }

.layout { display: grid; grid-template-columns: 300px 1fr; gap: 28px; padding-block: 24px; align-items: start; }
.layout > * { min-width: 0; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }
.chapters { position: sticky; top: 76px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 10px; max-height: calc(100vh - 190px); overflow: auto; }
@media (max-width: 900px) { .chapters { position: static; max-height: none; } }
.chapters h2 { font-size: .85rem; color: var(--muted); font-weight: 500; padding: 6px 10px; }
.chapters a { display: flex; justify-content: space-between; gap: 10px; padding: 8px 10px; border-radius: 10px; font-size: .9rem; line-height: 1.5; }
.chapters a:hover { background: var(--surface-2); }
.chapters a[aria-current="true"] { background: var(--brand-soft); color: var(--brand); }
.chapters a .c { color: var(--muted); font-size: .8rem; flex: none; }
.chapters a.zero { opacity: .55; }
.chapters .sub { padding-inline-start: 14px; border-inline-start: 1px solid var(--line); margin-inline-start: 10px; }

.lessons { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.group-title { padding: 14px 18px 8px; font-family: var(--f-book); font-weight: 700; font-size: 1.1rem; border-top: 1px solid var(--line); background: var(--bg); }
.group-title:first-child { border-top: 0; }
.lesson { display: grid; grid-template-columns: 44px 1fr auto; gap: 12px; align-items: center; padding: 10px 16px; border-top: 1px solid var(--line); }
.lesson:first-child { border-top: 0; }
.lesson.playing { background: var(--brand-soft); }
.lesson.heard .t { color: var(--muted); }
.play { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: var(--bg); display: grid; place-items: center; cursor: pointer; color: var(--brand); }
.play:hover { background: var(--brand); color: var(--surface); border-color: var(--brand); }
.play svg { width: 16px; height: 16px; }
.lesson .t { font-size: .97rem; line-height: 1.55; overflow-wrap: anywhere; }
.lesson .sub { color: var(--muted); font-size: .78rem; display: flex; gap: 10px; flex-wrap: wrap; }
.lesson .acts { display: flex; gap: 4px; }
.lesson .acts a, .lesson .acts button { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: var(--muted); background: transparent; border: 0; cursor: pointer; }
.lesson .acts a:hover, .lesson .acts button:hover { background: var(--surface-2); color: var(--ink); }
.lesson .acts svg { width: 18px; height: 18px; }
.lesson .acts button[aria-pressed="true"] { color: var(--accent); }
@media (max-width: 520px) { .lesson { grid-template-columns: 40px 1fr; } .lesson .acts { grid-column: 2; justify-content: flex-start; margin-top: -4px; } }
.more { padding: 14px; text-align: center; border-top: 1px solid var(--line); }
.empty-note { padding: 28px 20px; color: var(--muted); text-align: center; }

.article { display: block; padding: 16px 18px; border-top: 1px solid var(--line); }
.article:first-child { border-top: 0; }
.article:hover { background: var(--bg); }
.article h3 { font-size: 1.02rem; font-weight: 600; line-height: 1.55; }
.article p { margin: 4px 0 0; color: var(--muted); font-size: .88rem; max-width: 75ch; }

.videos { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.video { display: block; border-radius: var(--r); overflow: hidden; background: var(--surface); border: 1px solid var(--line); }
.video .th { aspect-ratio: 16/9; max-width: 100%; background: var(--surface-2) center/cover no-repeat; display: grid; place-items: center; color: var(--brand); }
.video .th svg { width: 44px; height: 44px; filter: drop-shadow(0 2px 6px rgba(0,0,0,.3)); }
.video span { display: block; padding: 10px 12px; font-size: .85rem; color: var(--muted); }

/* search */
.results-group { margin-top: 22px; }
.results-group h2 { font-size: 1rem; color: var(--muted); font-weight: 500; margin-bottom: 10px; }
mark { background: var(--accent-soft); color: inherit; border-radius: 3px; padding: 0 2px; }

/* report table */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 10px 14px; text-align: start; border-top: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; background: var(--bg); border-top: 0; }
td.n { font-variant-numeric: tabular-nums; white-space: nowrap; }
td .bad { color: var(--warn); }

/* player */
.player { position: fixed; inset: auto 0 0 0; z-index: 25; background: var(--surface); border-top: 1px solid var(--line); box-shadow: 0 -8px 24px rgba(0,0,0,.08);
  padding-bottom: env(safe-area-inset-bottom, 0px); }
.player .wrap { display: grid; grid-template-columns: auto 1fr auto auto; gap: 14px; align-items: center; padding-block: 10px; }
.player .ctrl { display: flex; gap: 6px; align-items: center; }
.player .big { width: 46px; height: 46px; border-radius: 50%; background: var(--brand); color: var(--surface); border: 0; display: grid; place-items: center; cursor: pointer; }
.player .big svg, .player .icon-btn svg { width: 20px; height: 20px; }
.player .icon-btn { width: 36px; height: 36px; border-radius: 10px; }
.player .info { min-width: 0; }
.player .info b { display: block; font-size: .92rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player .info a { font-size: .78rem; color: var(--muted); display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player .bar { display: flex; align-items: center; gap: 10px; font-size: .75rem; color: var(--muted); margin-top: 2px; }
.player input[type=range] { flex: 1; min-width: 0; accent-color: var(--brand); direction: ltr; }
.speed { border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 3px 8px; font-size: .8rem; cursor: pointer; }
.player .err { color: var(--warn); font-size: .78rem; }
@media (max-width: 600px) {
  .player .wrap { grid-template-columns: auto 1fr auto; gap: 10px; padding-block: 8px; }
  .player .side { display: none; }
  #pPrev { display: none; }
  .player .big { width: 42px; height: 42px; }
}

footer.site { padding-block: 40px; color: var(--muted); font-size: .85rem; border-top: 1px solid var(--line); margin-top: 48px; }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer.site a { color: var(--brand); }

.skeleton { padding: 80px 0; text-align: center; color: var(--muted); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@media (max-width: 760px) { .searchbox kbd { display: none; } }

body.has-player { padding-bottom: 110px; }
/* ---------- mobile: menu drawer, bottom nav ---------- */
.burger, .bottom-nav { display: none; }
.scrim { position: fixed; inset: 0; z-index: 40; background: rgba(5, 15, 16, .45); }
.drawer { position: fixed; z-index: 41; top: 0; bottom: 0; right: 0; width: min(86vw, 340px); background: var(--surface); border-inline-end: 1px solid var(--line);
  box-shadow: -12px 0 32px rgba(0, 0, 0, .18); overflow-y: auto; display: flex; flex-direction: column; gap: 4px;
  padding: calc(env(safe-area-inset-top, 0px) + 12px) max(16px, env(safe-area-inset-right, 0px)) calc(env(safe-area-inset-bottom, 0px) + 16px) 16px;
  animation: slideIn .2s ease; }
@keyframes slideIn { from { transform: translateX(100%); } to { transform: none; } }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 8px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.drawer-title { font-family: var(--f-display); font-size: 1.1rem; }
.drawer-links a, .drawer-sections a { display: flex; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 10px; font-size: .95rem; }
.drawer-links a:hover, .drawer-sections a:hover { background: var(--surface-2); }
.drawer-links a[aria-current="page"] { background: var(--brand-soft); color: var(--brand); }
.drawer-sections a span:last-child { color: var(--muted); font-size: .82rem; }
.drawer-label { font-size: .78rem; color: var(--muted); letter-spacing: .03em; padding: 14px 12px 4px; }
.drawer-foot { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 16px; }
body.no-scroll { overflow: hidden; }

@media (max-width: 760px) {
  .burger { display: grid; }
  .top .wrap { gap: 10px; }
  .bottom-nav { display: grid; grid-template-columns: repeat(5, 1fr); position: fixed; inset: auto 0 0 0; z-index: 26;
    background: var(--surface); border-top: 1px solid var(--line);
    padding: 4px max(8px, env(safe-area-inset-right, 0px)) calc(env(safe-area-inset-bottom, 0px) + 4px) max(8px, env(safe-area-inset-left, 0px)); }
  .bottom-nav a { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 0; font-size: .7rem; color: var(--muted); border-radius: 10px; }
  .bottom-nav svg { width: 22px; height: 22px; }
  .bottom-nav a[aria-current="page"] { color: var(--brand); }
  .bottom-nav a[aria-current="page"] svg { background: var(--brand-soft); border-radius: 999px; padding: 2px 12px; width: 46px; box-sizing: content-box; height: 22px; margin-block: -2px; }
  .player { bottom: calc(58px + env(safe-area-inset-bottom, 0px)); padding-bottom: 0; box-shadow: 0 -4px 16px rgba(0,0,0,.08); }
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)); }
  body.has-player { padding-bottom: calc(150px + env(safe-area-inset-bottom, 0px)); }
  footer.site { margin-top: 24px; }
}
@media (prefers-reduced-motion: reduce) { .drawer { animation: none; } }