/* ── Muṣḥaf Study — design tokens ─────────────────────────────── */
:root {
  --chrome: #0e3b31;        /* deep Madinah green (cover leather) */
  --chrome-2: #14594a;
  --chrome-3: #1d6f5d;
  --paper: #f8f3e6;         /* mushaf ivory */
  --paper-2: #f1ead7;
  --ink: #29241b;
  --ink-soft: #4c4437;
  --muted: #7b7261;
  --gold: #b98f2e;
  --gold-soft: #d9c48a;
  --gold-wash: rgba(185, 143, 46, 0.26);
  --green-wash: rgba(20, 89, 74, 0.1);
  --serif: "New York", ui-serif, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --arabic: "Geeza Pro", "Al Nile", "Scheherazade New", "Amiri", serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--chrome);
  background-image: radial-gradient(ellipse at 50% -10%, var(--chrome-2), var(--chrome) 65%);
  color: var(--ink);
  font-family: var(--serif);
  min-height: 100vh;
}
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--gold-soft); outline-offset: 2px; }

/* ── header ───────────────────────────────────────────────────── */
header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 18px 10px;
  color: var(--paper);
}
.h-label {
  font-family: var(--sans); font-size: 10.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold-soft);
}
.h-surah { font-size: 17px; font-style: italic; text-align: center; flex: 1; }
.h-left { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
/* Juz switcher — hidden entirely until more than one juz has been built. */
#juzsel {
  font-family: var(--sans); font-size: 11px; letter-spacing: 0.04em;
  color: var(--paper); background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.22); border-radius: 5px;
  padding: 3px 6px; max-width: 190px;
}
#juzsel:focus-visible { outline: 2px solid var(--gold); outline-offset: 1px; }
#juzsel option { color: #14201d; background: var(--paper); }   /* readable dropdown */
.h-right { display: flex; align-items: center; gap: 10px; }
.h-page { font-family: var(--sans); font-size: 12px; opacity: 0.85; white-space: nowrap; }
.nav-btn {
  background: rgba(248, 243, 230, 0.08); border: 1px solid rgba(217, 196, 138, 0.4);
  color: var(--gold-soft); width: 34px; height: 34px; border-radius: 50%;
  font-size: 16px; line-height: 1;
}
.nav-btn:active { background: rgba(217, 196, 138, 0.25); }

/* progress: known-root coverage of this juz */
.coverage { height: 3px; background: rgba(248,243,230,0.12); margin: 0 18px; border-radius: 2px; overflow: hidden; }
.coverage > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--gold), var(--gold-soft)); transition: width 0.4s ease; }
.coverage-note {
  text-align: center; font-family: var(--sans); font-size: 10.5px;
  color: rgba(248,243,230,0.65); padding: 5px 0 0; letter-spacing: 0.04em;
}

/* ── layout ───────────────────────────────────────────────────── */
main { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 14px; max-width: 1120px; margin: 0 auto; }
@media (min-width: 1000px) {
  main { grid-template-columns: minmax(0, 560px) minmax(300px, 1fr); align-items: start; }
  #sheet { position: sticky; top: 14px; }
}

/* ── the page (signature element) ─────────────────────────────── */
.leaf {
  background: var(--paper);
  border-radius: 6px;
  padding: 18px 16px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0,0,0,0.3);
  position: relative;
}
.frame {
  border: 1px solid var(--gold);
  outline: 1px solid var(--gold-soft);
  outline-offset: 3px;
  border-radius: 3px;
  padding: 14px 12px;
}
.mushaf { direction: rtl; }
.mushaf .line { display: flex; justify-content: space-between; align-items: baseline; }
.mushaf .line.center, .mushaf.opening .line { justify-content: center; gap: 0.15em; }
.mushaf .line.header { justify-content: center; margin: 2px 0; }
.mushaf span.g { color: var(--ink); }
.mushaf span.w { border-radius: 4px; padding: 0 1px; transition: background 0.15s; }
.mushaf span.w.sel { background: var(--gold-wash); box-shadow: 0 0 0 2px var(--gold-wash); }
.mushaf span.w.flash { background: var(--green-wash); }
.mushaf span.end { color: var(--gold); }
.mushaf span.hdr { color: var(--chrome-2); }
.mushaf span.pause { color: var(--ink-soft); }
.mushaf span.orn { color: var(--gold); }
.mushaf.opening { padding: 6vmin 0; }
.pg-foot {
  text-align: center; font-family: var(--sans); font-size: 10.5px;
  color: var(--muted); letter-spacing: 0.2em; margin-top: 12px;
}

/* ── tabs & cards ─────────────────────────────────────────────── */
.tabs { display: flex; gap: 6px; margin-top: 14px; }
.chrome-tabs { max-width: 1120px; margin: 12px auto 0; padding: 0 14px; }
.tab {
  flex: 1; background: transparent; border: 1px solid rgba(217,196,138,0.45);
  color: var(--gold-soft); border-radius: 999px; padding: 7px 4px;
  font-family: var(--sans); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
}
.tab[aria-selected="true"] { background: var(--gold-soft); color: var(--chrome); border-color: var(--gold-soft); font-weight: 600; }
.card {
  background: var(--paper); border-radius: 6px; padding: 20px 20px 22px;
  margin-top: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  font-size: 15.5px; line-height: 1.62;
}
.card h2 { font-size: 13px; font-family: var(--sans); letter-spacing: 0.16em; text-transform: uppercase; color: var(--chrome-2); margin-bottom: 10px; }
.card h3 { font-size: 16px; margin: 4px 0 8px; }
.card p + p { margin-top: 10px; }
.badge {
  display: inline-block; font-family: var(--sans); font-size: 10px; letter-spacing: 0.1em;
  text-transform: uppercase; border: 1px solid var(--gold); color: var(--gold);
  border-radius: 999px; padding: 2px 9px; vertical-align: 2px; margin-left: 8px;
}
.badge.ok { border-color: var(--chrome-3); color: var(--chrome-3); }

.note { border-top: 1px solid rgba(123,114,97,0.25); padding: 13px 0 2px; margin-top: 13px; }
.note-ref {
  font-family: var(--sans); font-size: 11px; color: var(--paper);
  background: var(--chrome-2); border-radius: 4px; padding: 2px 7px;
  border: none; letter-spacing: 0.05em;
}
.note-ar { font-family: var(--arabic); font-size: 21px; direction: rtl; color: var(--chrome-2); margin: 6px 0 2px; }
.note b.t { display: block; font-size: 15px; margin: 2px 0 4px; }
.note p { font-size: 14.5px; color: var(--ink-soft); }

.ayah-row { border-top: 1px solid rgba(123,114,97,0.25); padding: 11px 0; }
.ayah-row:first-of-type { border-top: 0; }
.ayah-row .ref { font-family: var(--sans); font-size: 11px; color: var(--gold); letter-spacing: 0.05em; }
.attrib { font-family: var(--sans); font-size: 11px; color: var(--muted); margin-top: 12px; }

/* ── stacked tafsir voices (Jalālayn / al-Kashshāf / Ibn ʿĀshūr) ── */
.tafsir-src { margin-top: 12px; }
.tafsir-src-title {
  font-family: var(--sans); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--chrome-2); margin-bottom: 4px;
}
.tafsir-en { font-size: 14.5px; color: var(--ink-soft); }
.tafsir-ar {
  font-family: var(--arabic); direction: rtl; text-align: justify;
  font-size: 19px; line-height: 1.95; color: var(--ink);
}
.tafsir-banner {
  font-family: var(--sans); font-size: 11px; line-height: 1.4;
  color: #8a2f22; background: rgba(138, 47, 34, 0.08);
  border: 1px solid rgba(138, 47, 34, 0.32); border-radius: 5px;
  padding: 5px 9px; margin-bottom: 7px;
}
.tafsir-banner::before { content: "⚠ "; }
.intisaf {
  background: var(--green-wash); color: var(--chrome-2);
  border-radius: 4px; padding: 0 4px;
  box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.tafsir-more {
  margin-top: 6px; font-family: var(--sans); font-size: 11px; letter-spacing: 0.05em;
  color: var(--gold); background: none; border: none; padding: 2px 0;
  text-decoration: underline; text-underline-offset: 2px;
}

/* ── word sheet ───────────────────────────────────────────────── */
#sheet { display: none; }
#sheet.open { display: block; }
.sheet-card { background: var(--paper); border-radius: 8px; padding: 20px; box-shadow: 0 12px 36px rgba(0,0,0,0.35); }
.sheet-top { display: flex; justify-content: space-between; align-items: flex-start; }
.w-ar { font-family: var(--arabic); font-size: 40px; line-height: 1.25; direction: rtl; color: var(--ink); }
.w-tr { font-style: italic; color: var(--muted); font-size: 15px; }
.w-en { font-size: 19px; margin-top: 4px; }
.close-x { background: none; border: none; color: var(--muted); font-size: 22px; padding: 2px 6px; }
.w-grid { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin-top: 14px; font-size: 14px; }
.w-grid dt { font-family: var(--sans); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); padding-top: 3px; }
.w-grid dd .ar { font-family: var(--arabic); font-size: 19px; }
.root-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--green-wash); border: 1px solid var(--chrome-3);
  border-radius: 999px; padding: 3px 12px;
}
.root-chip .ar { color: var(--chrome-2); font-weight: 600; }
.root-freq { font-family: var(--sans); font-size: 11px; color: var(--chrome-2); }
.know-btn {
  margin-top: 14px; width: 100%; border-radius: 999px; padding: 10px;
  font-family: var(--sans); font-size: 13px; letter-spacing: 0.06em;
  border: 1.5px solid var(--chrome-2); background: transparent; color: var(--chrome-2);
}
.know-btn.on { background: var(--chrome-2); color: var(--paper); }
.occ { margin-top: 14px; }
.occ h4 { font-family: var(--sans); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.occ-list { display: flex; flex-wrap: wrap; gap: 6px; }
.occ-list button {
  font-family: var(--sans); font-size: 11.5px; border: 1px solid rgba(123,114,97,0.4);
  background: var(--paper-2); color: var(--ink-soft); border-radius: 5px; padding: 3px 8px;
}
.occ-list button.here { border-color: var(--gold); color: var(--gold); }

/* bottom sheet on narrow screens */
@media (max-width: 999px) {
  #sheet.open {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
    padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
    animation: rise 0.22s ease;
  }
  .sheet-card { max-height: 62vh; overflow-y: auto; border-radius: 14px 14px 8px 8px; }
}
@keyframes rise { from { transform: translateY(24px); opacity: 0.4; } }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ── ayah (sentence) breakdown ────────────────────────────────── */
.ayabd { margin-top: 16px; border-top: 1px solid rgba(123,114,97,0.25); padding-top: 12px; }
.ayabd h4 { font-family: var(--sans); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.bd-flow { display: flex; flex-wrap: wrap; direction: rtl; gap: 6px; }
.bd-w {
  border: 1px solid rgba(123,114,97,0.3); background: var(--paper-2);
  border-radius: 7px; padding: 5px 8px 4px; text-align: center;
  min-width: 52px; max-width: 128px; cursor: pointer;
}
.bd-w:active { background: var(--green-wash); }
.bd-w.cur { border-color: var(--gold); background: var(--gold-wash); }
.bd-ar { font-family: var(--arabic); font-size: 20px; line-height: 1.4; color: var(--ink); }
.bd-en { font-family: var(--sans); font-size: 10px; color: var(--ink-soft); line-height: 1.25; direction: ltr; }
.bd-tr { font-size: 13.5px; font-style: italic; color: var(--ink-soft); margin-top: 10px; }
@media (min-width: 1000px) {
  .sheet-card { max-height: calc(100vh - 28px); overflow-y: auto; }
}