:root {
  --ink: #16302c;
  --ink-soft: #526460;
  --green: #0b6257;
  --green-deep: #074a43;
  --green-light: #e2f0eb;
  --cream: #f6f2e9;
  --paper: #fffdf8;
  --gold: #c49a4a;
  --gold-soft: #eadcbf;
  --line: #dedbd1;
  --white: #fff;
  --danger: #8d3e35;
  --shadow: 0 18px 50px rgba(22, 48, 44, 0.11);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", Inter, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--white);
  background: var(--green);
  border-radius: 8px;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(222, 219, 209, 0.78);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(18px);
}
.header-inner, .section-inner, .footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}
.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(196, 154, 74, 0.55);
  border-radius: 50% 50% 48% 48%;
  color: var(--paper);
  background: var(--green);
  font: 700 24px/1 Tahoma, serif;
  box-shadow: inset 0 0 0 4px var(--green), inset 0 0 0 5px rgba(255,255,255,.18);
}
.brand strong { display: block; font-family: Georgia, "Times New Roman", serif; font-size: 18px; line-height: 1.15; }
.brand small { display: block; margin-top: 3px; color: var(--ink-soft); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 34px; }
.main-nav a {
  position: relative;
  padding: 28px 0 24px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 650;
}
.main-nav a:hover, .main-nav a:focus, .main-nav a.active { color: var(--green); }
.main-nav a.active::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 17px;
  left: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gold);
}
.service-state { display: flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.state-dot { width: 8px; height: 8px; border-radius: 50%; background: #b7aea0; box-shadow: 0 0 0 4px rgba(183,174,160,.15); }
.service-state.online .state-dot { background: #2f9b75; box-shadow: 0 0 0 4px rgba(47,155,117,.14); }
.service-state.offline { color: var(--danger); }
.service-state.offline .state-dot { background: var(--danger); }

.hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgba(246, 242, 233, .94), rgba(246, 242, 233, .94)),
    repeating-linear-gradient(45deg, transparent 0 19px, rgba(11,98,87,.045) 20px 21px);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .32;
  background-image: radial-gradient(circle at center, rgba(196,154,74,.28) 1px, transparent 1.5px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  width: min(900px, calc(100% - 40px));
  margin: 0 auto;
  padding: 92px 0 72px;
  text-align: center;
}
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { color: var(--gold); }
.hero h1 {
  max-width: 760px;
  margin: 18px auto 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(48px, 7vw, 78px);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -.045em;
}
.hero h1 em { color: var(--green); font-weight: 500; text-decoration: none; }
.hero-copy { max-width: 640px; margin: 0 auto; color: var(--ink-soft); font-size: 17px; }
.ornament { position: absolute; border: 1px solid rgba(196,154,74,.2); border-radius: 50%; }
.ornament::before, .ornament::after { content: ""; position: absolute; inset: 12%; border: 1px solid rgba(11,98,87,.09); border-radius: 36% 64% 40% 60%; transform: rotate(24deg); }
.ornament::after { inset: 27%; transform: rotate(66deg); }
.ornament-one { width: 310px; height: 310px; top: 95px; left: -180px; }
.ornament-two { width: 260px; height: 260px; right: -145px; bottom: 56px; }

.search-shell {
  position: relative;
  max-width: 810px;
  margin: 42px auto 0;
  padding: 12px;
  border: 1px solid rgba(11,98,87,.18);
  border-radius: 22px;
  background: rgba(255,253,248,.95);
  box-shadow: 0 22px 70px rgba(26,58,52,.13), 0 2px 8px rgba(26,58,52,.06);
  text-align: left;
}
.search-shell:focus-within { border-color: rgba(11,98,87,.45); box-shadow: 0 22px 70px rgba(26,58,52,.16), 0 0 0 4px rgba(11,98,87,.07); }
.mode-tabs { display: flex; gap: 4px; width: fit-content; margin: -49px auto 18px; padding: 4px; border: 1px solid rgba(11,98,87,.16); border-radius: 999px; background: rgba(255,253,248,.96); box-shadow: 0 8px 24px rgba(22,48,44,.08); }
.mode-tabs button { min-height: 34px; padding: 0 16px; border: 0; border-radius: 999px; color: var(--ink-soft); background: transparent; cursor: pointer; font-size: 12px; font-weight: 750; }
.mode-tabs button:hover { color: var(--green); }
.mode-tabs button.active { color: var(--white); background: var(--green); box-shadow: 0 4px 10px rgba(11,98,87,.18); }
.search-field { position: relative; display: flex; align-items: center; min-height: 64px; padding: 0 16px; }
.search-icon { position: relative; flex: 0 0 auto; width: 21px; height: 21px; margin-right: 14px; border: 2px solid var(--green); border-radius: 50%; }
.search-icon::after { content: ""; position: absolute; width: 8px; height: 2px; right: -6px; bottom: -3px; border-radius: 2px; background: var(--green); transform: rotate(45deg); }
.search-field textarea { width: 100%; min-height: 30px; max-height: 130px; padding: 4px 0; resize: none; overflow-y: auto; border: 0; outline: none; color: var(--ink); background: transparent; font: 500 20px/1.5 Tahoma, Arial, sans-serif; }
.search-field textarea::placeholder { color: #8b9691; font: 400 15px/1.5 "Segoe UI", Arial, sans-serif; }
kbd { flex: 0 0 auto; min-width: 26px; padding: 3px 7px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; color: #89918e; background: #faf8f1; font: 12px/1.3 "Segoe UI", sans-serif; text-align: center; }
.search-actions { display: flex; justify-content: space-between; gap: 12px; padding-top: 10px; border-top: 1px solid #ece8de; }
.filter-button, .primary-button { min-height: 48px; border-radius: 12px; cursor: pointer; font-weight: 750; }
.filter-button { display: inline-flex; align-items: center; gap: 9px; max-width: 55%; padding: 0 14px; overflow: hidden; border: 0; color: var(--ink-soft); background: transparent; }
.filter-button:hover { color: var(--green); background: var(--green-light); }
.filter-button span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.primary-button { display: inline-flex; min-width: 174px; align-items: center; justify-content: center; gap: 20px; padding: 0 20px; border: 0; color: white; background: var(--green); box-shadow: 0 7px 16px rgba(11,98,87,.2); }
.primary-button:hover { background: var(--green-deep); transform: translateY(-1px); }
.primary-button:disabled { opacity: .65; cursor: wait; transform: none; }
.button-arrow { color: var(--gold-soft); font-size: 20px; transition: transform .2s ease; }
.primary-button:hover .button-arrow { transform: translateX(-4px); }
.filter-popover { position: absolute; z-index: 8; left: 12px; bottom: -154px; width: min(360px, calc(100% - 24px)); padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); box-shadow: var(--shadow); }
.filter-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.filter-heading button { padding: 3px 0; border: 0; color: var(--green); background: transparent; cursor: pointer; font-size: 12px; font-weight: 700; }
.filter-popover label { display: block; margin-bottom: 5px; color: var(--ink-soft); font-size: 12px; }
.filter-popover select { width: 100%; height: 43px; padding: 0 34px 0 11px; border: 1px solid var(--line); border-radius: 9px; outline: 0; color: var(--ink); background: white; }
.filter-popover select:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(11,98,87,.08); }
.suggestions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 9px; margin-top: 22px; color: var(--ink-soft); font-size: 12px; }
.suggestions button { padding: 6px 13px; border: 1px solid rgba(11,98,87,.15); border-radius: 999px; color: var(--green); background: rgba(255,255,255,.5); cursor: pointer; font: 500 14px/1.2 Tahoma, sans-serif; }
.suggestions button:hover { border-color: var(--gold); background: var(--white); }
.trust-line { display: flex; flex-wrap: wrap; justify-content: center; gap: 30px; margin-top: 48px; color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.trust-line span { display: inline-flex; align-items: center; gap: 7px; }
.trust-line b { display: grid; width: 18px; height: 18px; place-items: center; border-radius: 50%; color: var(--green); background: var(--green-light); font-size: 11px; }

.results-section { padding: 84px 0; background: #f8f6ef; }
.results-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.section-kicker, .dialog-kicker { display: block; margin-bottom: 9px; color: var(--gold); font-size: 11px; font-weight: 850; letter-spacing: .15em; }
.results-heading h2, .library-header h2, .method-intro h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(31px, 4vw, 44px); font-weight: 500; line-height: 1.12; letter-spacing: -.025em; }
.results-meta { flex: 0 0 auto; padding-bottom: 6px; color: var(--ink-soft); font-size: 13px; }
.results-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 30px; align-items: start; }
.results-list { display: grid; gap: 16px; }
.result-card { position: relative; overflow: hidden; padding: 24px 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.result-card::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 3px; background: var(--gold); opacity: 0; }
.result-card:hover { transform: translateY(-2px); border-color: rgba(196,154,74,.55); box-shadow: 0 14px 36px rgba(22,48,44,.08); }
.result-card:hover::before { opacity: 1; }
.result-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.result-book { margin: 0; color: var(--green); font: 700 17px/1.55 Tahoma, Arial, sans-serif; text-align: right; }
.result-author { margin: 4px 0 0; color: var(--ink-soft); font: 400 13px/1.5 Tahoma, Arial, sans-serif; text-align: right; }
.score-badge { flex: 0 0 auto; padding: 5px 9px; border-radius: 999px; color: var(--green); background: var(--green-light); font-size: 10px; font-weight: 800; letter-spacing: .04em; }
.arabic-quote { position: relative; margin: 21px 0 19px; padding: 20px 22px; border: 0; border-radius: 12px; color: #213733; background: #f4f1e7; font: 500 20px/2.05 Tahoma, Arial, sans-serif; text-align: right; white-space: pre-wrap; }
.arabic-quote mark { padding: 0 2px; border-radius: 3px; color: inherit; background: #f5d991; }
.result-citation { display: flex; flex-wrap: wrap; gap: 8px; }
.citation-chip { padding: 5px 9px; border: 1px solid #e5e0d5; border-radius: 7px; color: var(--ink-soft); background: #fbfaf5; font-size: 11px; }
.result-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 19px; padding-top: 16px; border-top: 1px solid #ece8de; }
.text-button { padding: 8px 11px; border: 0; border-radius: 8px; color: var(--green); background: transparent; cursor: pointer; font-size: 12px; font-weight: 750; }
.text-button:hover { background: var(--green-light); }
.source-guide { position: sticky; top: 106px; padding: 28px; border-radius: var(--radius); color: #f6f1e7; background: var(--green-deep); box-shadow: var(--shadow); }
.guide-mark { display: block; height: 38px; color: var(--gold); font: 54px/1 Georgia, serif; }
.source-guide h3 { margin: 9px 0; font-family: Georgia, serif; font-size: 23px; font-weight: 500; }
.source-guide p { margin: 0; color: rgba(255,255,255,.72); font-size: 13px; }
.guide-rule { height: 1px; margin: 22px 0; background: rgba(255,255,255,.15); }
.source-guide .guide-note { color: var(--gold-soft); font-size: 11px; font-weight: 700; letter-spacing: .03em; }
.answer-card { padding: 34px 36px; border: 1px solid rgba(11,98,87,.24); border-radius: var(--radius); background: var(--paper); box-shadow: 0 16px 42px rgba(22,48,44,.08); }
.answer-card-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; color: var(--ink-soft); font-size: 11px; font-weight: 700; }
.answer-status { display: inline-flex; width: fit-content; align-items: center; gap: 7px; padding: 6px 10px; border-radius: 999px; color: var(--danger); background: rgba(141,62,53,.08); font-size: 10px; font-weight: 850; letter-spacing: .08em; }
.answer-status.verified { color: var(--green); background: var(--green-light); }
.answer-status.verified::before { content: "✓"; display: grid; width: 15px; height: 15px; place-items: center; border-radius: 50%; color: var(--white); background: var(--green); font-size: 9px; }
.answer-card h3 { max-width: 760px; margin: 0 0 18px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(27px, 3.5vw, 38px); font-weight: 500; line-height: 1.2; }
.answer-copy { color: #2a3e3a; font-size: 16px; line-height: 1.8; }
.answer-copy p { margin: 0 0 13px; }
.answer-copy p:last-child { margin-bottom: 0; }
.inline-citation { display: inline-block; padding: 0 5px; border-radius: 5px; color: var(--green); background: var(--green-light); font-size: .8em; font-weight: 850; }
.answer-caveat { margin: 24px 0 0; padding: 14px 16px; border-left: 3px solid var(--gold); color: var(--ink-soft); background: #faf7ed; font-size: 12px; }
.insufficient-answer { border-color: rgba(141,62,53,.2); }
.insufficient-answer .answer-status { margin-bottom: 18px; }
.citation-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 22px 0 3px; padding: 15px 2px 5px; color: var(--ink-soft); font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.citation-heading b { color: var(--green); font-size: 11px; letter-spacing: 0; }
.citation-card { box-shadow: none; }
.citation-number { display: block; margin-bottom: 5px; color: var(--gold); font: 700 11px/1.2 "Segoe UI", sans-serif; letter-spacing: .1em; text-align: right; }
.citation-relevance { margin: -5px 0 17px; color: var(--ink-soft); font-size: 13px; }
.empty-state, .error-state { padding: 46px 28px; border: 1px dashed #d3cec2; border-radius: var(--radius); background: var(--paper); text-align: center; }
.empty-state b, .error-state b { display: block; margin-bottom: 8px; font-family: Georgia, serif; font-size: 22px; font-weight: 500; }
.empty-state p, .error-state p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.error-state { border-color: rgba(141,62,53,.25); }

.library-section { padding: 90px 0 100px; background: var(--paper); }
.library-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.library-header p { margin: 12px 0 0; color: var(--ink-soft); }
.stats-row { display: flex; gap: 12px; }
.stats-row div { min-width: 108px; padding: 14px 16px; border-left: 1px solid var(--line); }
.stats-row strong { display: block; font-family: Georgia, serif; font-size: 25px; font-weight: 500; }
.stats-row span { color: var(--ink-soft); font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.book-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.catalog-toolbar { display: flex; align-items: flex-end; gap: 16px; margin: -7px 0 25px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: #faf8f1; }
.catalog-toolbar > label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.catalog-toolbar > div { flex: 1; display: flex; gap: 9px; }
.catalog-toolbar input { width: 100%; min-height: 44px; padding: 0 14px; border: 1px solid #d8d2c6; border-radius: 9px; color: var(--ink); background: var(--white); font: inherit; }
.catalog-toolbar input:focus { outline: 2px solid rgba(11,98,87,.18); border-color: var(--green); }
.catalog-toolbar button, .catalog-more { min-height: 44px; padding: 0 18px; border: 0; border-radius: 9px; color: var(--white); background: var(--green); cursor: pointer; font-weight: 800; }
.catalog-toolbar > span { min-width: 150px; padding-bottom: 12px; color: var(--ink-soft); font-size: 12px; text-align: right; }
.catalog-more { display: block; margin: 25px auto 0; }
.catalog-more[hidden] { display: none; }
.book-card { min-height: 230px; display: flex; flex-direction: column; padding: 23px; border: 1px solid var(--line); border-radius: 15px; background: #faf8f1; transition: border-color .2s ease, transform .2s ease; }
.book-card:hover { transform: translateY(-2px); border-color: rgba(196,154,74,.65); }
.book-number { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; color: #8a928f; font-size: 10px; font-weight: 800; letter-spacing: .09em; }
.book-number b { width: 28px; height: 1px; background: var(--gold); }
.book-card h3 { margin: 0; font: 700 19px/1.65 Tahoma, Arial, sans-serif; text-align: right; }
.book-card p { margin: 8px 0 0; color: var(--ink-soft); font: 400 13px/1.6 Tahoma, Arial, sans-serif; text-align: right; }
.book-card button { align-self: flex-start; margin-top: auto; padding: 7px 0; border: 0; color: var(--green); background: transparent; cursor: pointer; font-size: 12px; font-weight: 800; }
.book-card button:hover { color: var(--gold); }
.book-skeleton { height: 230px; border-radius: 15px; background: linear-gradient(100deg, #f1eee5 20%, #f8f6ef 40%, #f1eee5 60%); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }

.method-section { padding: 90px 0; color: var(--white); background: var(--ink); }
.method-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: center; }
.section-kicker.light { color: var(--gold-soft); }
.method-intro h2 { max-width: 500px; color: #fffdf8; }
.method-intro p { max-width: 500px; margin: 19px 0 0; color: rgba(255,255,255,.62); }
.method-steps { margin: 0; padding: 0; list-style: none; }
.method-steps li { display: grid; grid-template-columns: 50px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.method-steps li:first-child { border-top: 1px solid rgba(255,255,255,.12); }
.method-steps > li > span { padding-top: 3px; color: var(--gold); font: 600 12px/1.3 Georgia, serif; }
.method-steps h3 { margin: 0 0 4px; color: #fffdf8; font: 500 21px/1.3 Georgia, serif; }
.method-steps p { margin: 0; color: rgba(255,255,255,.6); font-size: 13px; }

footer { padding: 32px 0; border-top: 1px solid #e8e2d6; background: var(--cream); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand .brand-mark { width: 36px; height: 36px; font-size: 20px; }
.footer-inner p { margin: 0; color: var(--ink-soft); font-size: 12px; }
.footer-inner > a { color: var(--green); font-size: 12px; font-weight: 750; text-decoration: none; }

.source-dialog { width: min(840px, calc(100% - 28px)); max-height: min(88vh, 900px); padding: 0; overflow: hidden; border: 1px solid #d7d1c4; border-radius: 20px; color: var(--ink); background: var(--paper); box-shadow: 0 30px 100px rgba(4,34,30,.35); }
.source-dialog::backdrop { background: rgba(10,35,31,.66); backdrop-filter: blur(5px); }
.dialog-topbar { position: sticky; top: 0; z-index: 2; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 23px 25px; border-bottom: 1px solid var(--line); background: rgba(255,253,248,.96); }
.dialog-topbar h2 { margin: 0; font: 700 18px/1.5 Tahoma, Arial, sans-serif; text-align: right; }
.dialog-kicker { margin-bottom: 4px; }
.dialog-close { flex: 0 0 auto; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); background: transparent; cursor: pointer; font-size: 26px; line-height: 1; }
.dialog-close:hover { border-color: var(--green); color: var(--green); }
#dialog-content { max-height: calc(88vh - 94px); overflow-y: auto; padding: 26px; }
.source-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.source-body, .source-foot { padding: 24px; border-radius: 12px; background: #f4f1e8; font: 500 20px/2 Tahoma, Arial, sans-serif; text-align: right; white-space: pre-wrap; }
.source-foot { margin-top: 14px; border-right: 3px solid var(--gold); background: #faf7ed; font-size: 17px; }
.source-label { display: block; margin: 20px 0 7px; color: var(--ink-soft); font-size: 11px; font-weight: 800; letter-spacing: .1em; }

.toast { position: fixed; z-index: 100; right: 22px; bottom: 22px; max-width: min(360px, calc(100% - 44px)); padding: 12px 16px; border-radius: 10px; color: var(--white); background: var(--ink); box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .2s ease, transform .2s ease; font-size: 13px; }
.toast.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .main-nav { display: none; }
  .results-grid { grid-template-columns: 1fr; }
  .source-guide { position: static; }
  .book-grid { grid-template-columns: repeat(2, 1fr); }
  .library-header { align-items: flex-start; flex-direction: column; }
  .method-grid { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  .header-inner, .section-inner, .footer-inner, .hero-inner { width: min(100% - 28px, 1180px); }
  .header-inner { min-height: 66px; }
  .brand-mark { width: 37px; height: 37px; font-size: 21px; }
  .brand strong { font-size: 16px; }
  .brand small { display: none; }
  .service-state span:last-child { display: none; }
  .hero { min-height: 650px; }
  .hero-inner { padding-top: 74px; }
  .hero h1 { font-size: 46px; }
  .hero-copy { font-size: 15px; }
  .search-shell { margin-top: 32px; padding: 9px; }
  .mode-tabs { margin-top: -46px; }
  .search-field { min-height: 62px; padding: 0 12px; }
  .search-icon { margin-right: 12px; }
  .search-field textarea { font-size: 18px; }
  kbd { display: none; }
  .filter-button { max-width: 48%; padding: 0 10px; font-size: 12px; }
  .primary-button { min-width: 148px; padding: 0 15px; gap: 12px; }
  .trust-line { gap: 12px 19px; margin-top: 36px; }
  .results-section, .library-section, .method-section { padding: 64px 0; }
  .results-heading { align-items: flex-start; flex-direction: column; }
  .result-card { padding: 19px; }
  .answer-card { padding: 24px 21px; }
  .answer-card-top { align-items: flex-start; flex-direction: column; }
  .arabic-quote { padding: 18px; font-size: 18px; }
  .source-guide { padding: 22px; }
  .stats-row { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
  .stats-row div { min-width: 0; padding: 11px; }
  .stats-row strong { font-size: 21px; }
  .book-grid { grid-template-columns: 1fr; }
  .catalog-toolbar { align-items: stretch; flex-direction: column; }
  .catalog-toolbar > div { width: 100%; }
  .catalog-toolbar > span { padding: 0; text-align: left; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .footer-inner p { max-width: 300px; }
  .dialog-topbar, #dialog-content { padding: 18px; }
  .source-body, .source-foot { padding: 18px; font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}