:root {
  --page-bg: #0d100d;
  --surface: #121411;
  --surface-raised: #1b1f1a;
  --line: rgba(255, 255, 255, 0.071);
  --line-strong: rgba(255, 255, 255, 0.14);
  --ink: #f3f3ef;
  --ink-soft: #aaa9a0;
  --muted: #9c9e95;
  --action: #17c08a;
  --action-pressed: #12a176;
  --on-action: #06140f;
  --gold: #edb143;
  --danger: #ffb4ab;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  background: var(--page-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 280px;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--ink);
  font-family: "Tajawal", "IBM Plex Sans Arabic", "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.85;
}

a { color: inherit; }

button,
input,
select { font: inherit; }

button,
select { cursor: pointer; }

.skip-link {
  position: fixed;
  z-index: 100;
  inset-block-start: 8px;
  inset-inline-start: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--action);
  color: var(--on-action);
  font-weight: 700;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid var(--action);
  outline-offset: 3px;
}

.site-shell {
  width: min(1480px, 100%);
  margin-inline: auto;
  padding: 18px clamp(14px, 3vw, 42px) 46px;
}

.site-header,
.site-footer,
.panel,
.result-card,
.tafsir-block {
  border: 1px solid var(--line);
  background: var(--surface);
}

.site-header {
  position: sticky;
  z-index: 30;
  inset-block-start: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 12px 18px;
  border-color: var(--line-strong);
  border-radius: 18px;
}

.brand {
  text-decoration: none;
  font-size: 1.12rem;
  font-weight: 800;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.site-nav a {
  min-height: 44px;
  padding: 8px 13px;
  border-radius: 12px;
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: rgba(23, 192, 138, 0.12);
  color: var(--action);
}

.page-intro {
  padding-block: clamp(36px, 7vw, 72px) 28px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p { margin-block-start: 0; }

h1 {
  margin-block-end: 12px;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.35;
}

h2 { line-height: 1.5; }

.page-intro > p:last-child {
  width: min(720px, 100%);
  margin: 0 auto;
  color: var(--ink-soft);
}

.library-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 2.4fr) minmax(230px, 0.85fr);
  grid-template-areas: "index reading source";
  gap: 18px;
  align-items: start;
}

.surah-panel { grid-area: index; }
.reading-panel { grid-area: reading; }
.source-panel { grid-area: source; }

.panel {
  padding: 20px;
  border-radius: 18px;
}

.sticky-panel {
  position: sticky;
  inset-block-start: 92px;
  max-height: calc(100vh - 112px);
  overflow: auto;
}

.panel h2 {
  margin-block-end: 15px;
  font-size: 1.12rem;
}

.field {
  display: grid;
  gap: 7px;
  margin-block-end: 14px;
}

.field label { font-weight: 700; }

select,
input[type="search"] {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  padding: 9px 12px;
}

input[type="search"]::placeholder { color: var(--muted); }

.button,
.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  padding: 9px 15px;
  text-decoration: none;
  font-weight: 800;
}

.button {
  background: var(--action);
  color: var(--on-action);
}

.button:hover { background: var(--action-pressed); }

.button-secondary {
  border: 1px solid rgba(23, 192, 138, 0.42);
  background: transparent;
  color: var(--action);
}

.button[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.45;
}

.text-link {
  padding-inline: 0;
  color: var(--action);
  justify-content: flex-start;
}

.reading-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-block-end: 18px;
  padding-block-end: 15px;
  border-block-end: 1px solid var(--line);
}

.reading-head h2 { margin: 0; font-size: clamp(1.35rem, 4vw, 2rem); }

.chapter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.riyadh-layout .reading-panel { min-width: 0; }
.riyadh-content { display: grid; gap: 14px; }
.riyadh-hadith { scroll-margin-block: 18px; }
.riyadh-hadith > h3 { margin-block-start: 0; }
.riyadh-note-section { margin-block: 14px; }
.riyadh-note-section h4 { margin-block: 0 8px; color: var(--ink); }
.riyadh-note-section p { margin-block: 0 10px; white-space: pre-wrap; line-height: 2; }
.riyadh-source-link { display: inline-block; margin-block-start: 8px; }
.source-note { color: var(--muted); line-height: 1.8; }

.status {
  min-height: 30px;
  margin: 0;
  color: var(--ink-soft);
}

.status[data-state="error"] { color: var(--danger); }

.status[hidden] { display: none; }

.tafsir-list {
  display: grid;
  gap: 14px;
}

.tafsir-block {
  scroll-margin-block-start: 100px;
  padding: clamp(18px, 4vw, 28px);
  border-radius: 16px;
  background: var(--surface-raised);
}

.tafsir-block:target,
.tafsir-block:focus-within { border-color: rgba(23, 192, 138, 0.7); }

.block-heading {
  margin-block-end: 10px;
  color: var(--gold);
  font-size: 1rem;
}

.tafsir-copy {
  color: var(--ink);
  font-family: "Noto Naskh Arabic", "Amiri", "Traditional Arabic", serif;
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  line-height: 2.15;
}

.tafsir-copy > :last-child { margin-block-end: 0; }
.tafsir-copy ul,
.tafsir-copy ol { padding-inline-start: 1.5rem; }
.tafsir-copy blockquote {
  margin-inline: 0;
  padding-inline-start: 16px;
  border-inline-start: 3px solid var(--gold);
  color: var(--ink-soft);
}

.tafsir-copy hr {
  margin-block: 18px;
  border: 0;
  border-block-start: 1px solid var(--line);
}

.block-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-block-start: 18px;
  padding-block-start: 12px;
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.source-details {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.source-details dt {
  margin-block-start: 12px;
  color: var(--muted);
  font-weight: 700;
}

.source-details dd { margin: 2px 0 0; overflow-wrap: anywhere; }

.source-details a { color: var(--action); }

.return-float {
  position: fixed;
  z-index: 25;
  inset-inline-start: clamp(14px, 3vw, 42px);
  inset-block-end: 18px;
}

.search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  width: min(820px, 100%);
  margin: 0 auto 32px;
}

.search-form label {
  grid-column: 1 / -1;
  font-weight: 800;
}

.search-results {
  display: grid;
  gap: 28px;
  width: min(1000px, 100%);
  margin-inline: auto;
}

.result-group[hidden] { display: none; }

.group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-block-end: 12px;
}

.group-head h2 { margin: 0; }
.result-count { color: var(--muted); font-size: 0.9rem; }

.result-list {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.result-card {
  padding: clamp(17px, 4vw, 24px);
  border-radius: 16px;
}

.result-card h3 {
  margin-block-end: 8px;
  color: var(--gold);
  font-size: 1rem;
}

.result-card p {
  margin-block-end: 12px;
  color: var(--ink-soft);
  white-space: pre-line;
}

.result-card .quran-result-text {
  color: var(--ink);
  font-family: "Noto Naskh Arabic", "Amiri", "Traditional Arabic", serif;
  font-size: 1.2rem;
  line-height: 2.05;
}

mark {
  border-radius: 3px;
  background: rgba(237, 177, 67, 0.24);
  color: var(--ink);
  padding-inline: 1px;
}

.empty-state {
  width: min(820px, 100%);
  margin-inline: auto;
  padding: 24px;
  border: 1px dashed var(--line-strong);
  border-radius: 16px;
  color: var(--ink-soft);
  text-align: center;
}

.site-footer {
  margin-block-start: 44px;
  padding: 22px;
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin-block-end: 8px;
}

.site-footer a { color: var(--ink-soft); }

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 980px) {
  .library-layout {
    grid-template-columns: minmax(190px, 0.72fr) minmax(0, 2fr);
    grid-template-areas:
      "index reading"
      "source reading";
  }

  .source-panel { position: static; max-height: none; }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .site-shell { padding-inline: 12px; }

  .site-header {
    position: static;
    display: block;
    padding: 12px;
  }

  .brand { display: block; text-align: center; }
  .site-nav { justify-content: center; margin-block-start: 8px; }
  .site-nav a { padding-inline: 10px; }

  .library-layout {
    display: flex;
    flex-direction: column;
  }

  .surah-panel,
  .reading-panel,
  .source-panel { width: 100%; }

  .surah-panel { order: 1; }
  .reading-panel { order: 2; }
  .source-panel { order: 3; }
  .sticky-panel { position: static; max-height: none; }
  .reading-head { display: block; }
  .reading-head .button { margin-block-start: 10px; }
  .chapter-controls { margin-block-start: 10px; }

  .search-form { grid-template-columns: 1fr; }
  .search-form label { grid-column: auto; }

  .return-float {
    inset-inline: 12px;
    inset-block-end: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media (forced-colors: active) {
  .site-header,
  .site-footer,
  .panel,
  .result-card,
  .tafsir-block { border: 1px solid CanvasText; }
}