/* ==========================================================================
   Quran AI Bangladesh — premium Islamic UI
   Mobile-first. Layered on top of Bootstrap 5.3 with data-bs-theme support.
   ========================================================================== */

:root {
  --qa-green-900: #063d2a;
  --qa-green-700: #0b6444;
  --qa-green-600: #0d7a52;
  --qa-green-500: #14996a;
  --qa-green-100: #e6f4ee;
  --qa-gold: #c9a227;
  --qa-gold-soft: #f3e6bd;
  --qa-ink: #10241c;
  --qa-body: #f7faf8;
  --qa-surface: #ffffff;
  --qa-line: #e2ece7;
  --qa-muted: #5d6f68;
  --qa-radius: 18px;
  --qa-shadow-sm: 0 2px 10px rgba(6, 61, 42, .06);
  --qa-shadow: 0 14px 40px -18px rgba(6, 61, 42, .35);
  --qa-arabic-size: 1.9rem;
}

[data-bs-theme="dark"] {
  --qa-green-100: #102b21;
  --qa-ink: #e8f3ee;
  --qa-body: #0a1713;
  --qa-surface: #10231c;
  --qa-line: #1d3a30;
  --qa-muted: #96aca3;
  --qa-shadow-sm: 0 2px 10px rgba(0, 0, 0, .35);
  --qa-shadow: 0 18px 44px -20px rgba(0, 0, 0, .8);
}

[data-bs-theme="light"] {
  --bs-primary: var(--qa-green-600);
  --bs-primary-rgb: 13, 122, 82;
  --bs-body-bg: var(--qa-body);
  --bs-body-color: var(--qa-ink);
  --bs-link-color: var(--qa-green-700);
  --bs-link-hover-color: var(--qa-green-900);
}

[data-bs-theme="dark"] {
  --bs-primary: var(--qa-green-500);
  --bs-primary-rgb: 20, 153, 106;
  --bs-body-bg: var(--qa-body);
  --bs-body-color: var(--qa-ink);
  --bs-link-color: #6fd3a8;
  --bs-link-hover-color: #9be8c6;
}

/* ---------- base ---------- */
html { scroll-behavior: smooth; scroll-padding-top: 86px; }

body {
  font-family: "Hind Siliguri", system-ui, -apple-system, "Segoe UI", sans-serif;
  background-color: var(--qa-body);
  color: var(--qa-ink);
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(60rem 30rem at 110% -10%, color-mix(in srgb, var(--qa-green-500) 12%, transparent), transparent 60%),
    radial-gradient(50rem 26rem at -10% 0%, color-mix(in srgb, var(--qa-gold) 10%, transparent), transparent 60%);
  background-repeat: no-repeat;
}

h1, h2, h3, h4, .display-1 {
  font-family: "Noto Serif Bengali", "Hind Siliguri", serif;
  font-weight: 600;
  letter-spacing: -.01em;
}

a { text-decoration: none; }
a:hover { text-decoration: none; }

.narrow { max-width: 940px; }
.page-top { padding-top: 1.75rem; padding-bottom: 3.5rem; }
.section-gap { margin-top: 2.75rem; }

.skip-link {
  position: absolute; top: .5rem; left: .5rem; z-index: 1080;
  background: var(--qa-green-700); color: #fff; padding: .5rem .9rem; border-radius: 10px;
}

.text-gradient {
  background: linear-gradient(120deg, var(--qa-green-700), var(--qa-green-500) 55%, var(--qa-gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.page-head { margin-bottom: 1.5rem; }
.page-title { font-size: clamp(1.6rem, 4.5vw, 2.35rem); margin-bottom: .35rem; }
.page-sub { color: var(--qa-muted); margin-bottom: 0; }

.section-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 1rem;
}
.section-title { font-size: 1.25rem; margin: 0; position: relative; padding-left: .85rem; }
.section-title::before {
  content: ""; position: absolute; left: 0; top: .3em; bottom: .3em; width: 4px; border-radius: 4px;
  background: linear-gradient(var(--qa-green-500), var(--qa-gold));
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1030;
  backdrop-filter: saturate(1.4) blur(14px);
  background: color-mix(in srgb, var(--qa-surface) 88%, transparent);
  border-bottom: 1px solid var(--qa-line);
}
.navbar-brand { font-family: "Noto Serif Bengali", serif; font-weight: 700; color: var(--qa-green-700); }
[data-bs-theme="dark"] .navbar-brand { color: #7fdcb2; }
.navbar-brand img { height: 34px; width: 34px; }
.nav-link { font-weight: 500; color: var(--qa-ink) !important; border-radius: 10px; padding: .45rem .8rem !important; }
.nav-link:hover, .nav-link.active { background: var(--qa-green-100); color: var(--qa-green-700) !important; }
[data-bs-theme="dark"] .nav-link:hover, [data-bs-theme="dark"] .nav-link.active { color: #7fdcb2 !important; }

.btn-icon {
  border: 1px solid var(--qa-line); background: #41414100; color: var(--qa-ink);
  width: 38px; height: 38px; border-radius: 12px; display: inline-flex;
  align-items: center; justify-content: center; transition: .18s ease;
}
.btn-icon:hover { border-color: var(--qa-green-500); color: var(--qa-green-600); transform: translateY(-1px); }
.btn-icon.btn-sm { width: 34px; height: 34px; border-radius: 10px; }
.btn-icon.is-active { background: var(--qa-green-600); border-color: var(--qa-green-600); color: #fff; }

/* ---------- buttons ---------- */
.btn-primary {
  --bs-btn-bg: var(--qa-green-600); --bs-btn-border-color: var(--qa-green-600);
  --bs-btn-hover-bg: var(--qa-green-700); --bs-btn-hover-border-color: var(--qa-green-700);
  --bs-btn-active-bg: var(--qa-green-900); --bs-btn-color: #fff; --bs-btn-hover-color: #fff;
  border-radius: 12px; font-weight: 600;
}
.btn-outline-primary {
  --bs-btn-color: var(--qa-green-700); --bs-btn-border-color: var(--qa-green-600);
  --bs-btn-hover-bg: var(--qa-green-600); --bs-btn-hover-border-color: var(--qa-green-600);
  border-radius: 12px; font-weight: 600;
}
.btn-filter {
  border: 1px solid var(--qa-line); background: var(--qa-surface); color: var(--qa-ink);
  border-radius: 999px; padding: .35rem .9rem; font-size: .9rem; font-weight: 500;
}
.btn-filter.active, .btn-filter:hover { background: var(--qa-green-600); border-color: var(--qa-green-600); color: #fff; }

.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  border: 1px solid var(--qa-line); background: var(--qa-surface); color: var(--qa-ink);
  border-radius: 999px; padding: .4rem .9rem; font-size: .9rem; transition: .18s ease;
}
.chip:hover { border-color: var(--qa-green-500); color: var(--qa-green-700); transform: translateY(-1px); box-shadow: var(--qa-shadow-sm); }
.chip i { color: var(--qa-gold); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; border-radius: 0 0 32px 32px;
  padding: 3rem 0 3.25rem;
  background:
    linear-gradient(160deg, var(--qa-green-900), var(--qa-green-700) 55%, var(--qa-green-600));
  color: #fff;
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .18; pointer-events: none;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,.5) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.5) 0 1px, transparent 1px 22px);
  mask-image: radial-gradient(70% 70% at 50% 30%, #000, transparent 75%);
}
.hero > * { position: relative; z-index: 1; }
.hero h1 { color: #fff; font-size: clamp(1.75rem, 5.5vw, 2.9rem); }
.hero p { color: rgba(255, 255, 255, .84); }
.hero-arabic {
  font-family: "Amiri", serif; font-size: clamp(1.6rem, 6vw, 2.4rem);
  color: var(--qa-gold-soft); direction: rtl;
}
.hero-chips { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.hero .chip { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.28); color: #fff; }
.hero .chip:hover { background: #fff; color: var(--qa-green-700); }
.hero .chip i { color: var(--qa-gold-soft); }

/* ---------- search ---------- */
.search-wrap { position: relative; max-width: 680px; margin: 0 auto; }
.search-wrap .input-group { box-shadow: var(--qa-shadow); border-radius: 16px; overflow: hidden; }
.search-wrap .form-control,
.search-wrap .btn { border: none; padding: .95rem 1.1rem; font-size: 1rem; }
.search-wrap .form-control:focus { box-shadow: none; }
.search-suggest {
  position: absolute; left: 0; right: 0; top: calc(100% + .5rem); z-index: 1040;
  background: var(--qa-surface); border: 1px solid var(--qa-line); border-radius: 16px;
  box-shadow: var(--qa-shadow); max-height: 65vh; overflow-y: auto; text-align: left;
}
.suggest-group-title {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--qa-muted); padding: .65rem 1rem .25rem;
}
.suggest-item { display: block; padding: .6rem 1rem; border-top: 1px solid var(--qa-line); color: var(--qa-ink); }
.suggest-item:first-of-type { border-top: none; }
.suggest-item:hover, .suggest-item.active { background: var(--qa-green-100); }
.suggest-ref { font-size: .78rem; color: var(--qa-green-700); font-weight: 600; }
.suggest-text { font-size: .92rem; color: var(--qa-muted); margin: 0; }
mark { background: var(--qa-gold-soft); color: inherit; padding: 0 .15em; border-radius: 4px; }
[data-bs-theme="dark"] mark { background: rgba(201, 162, 39, .35); color: #fff; }

/* ---------- cards ---------- */
.card-soft, .surah-card, .topic-card, .article-card, .ayah-card, .stat-card, .admin-card, .chat-shell {
  background: var(--qa-surface); border: 1px solid var(--qa-line);
  border-radius: var(--qa-radius); box-shadow: var(--qa-shadow-sm);
}

.surah-card { display: flex; gap: .9rem; padding: 1rem; height: 100%; transition: .2s ease; color: inherit; }
.surah-card:hover { transform: translateY(-3px); box-shadow: var(--qa-shadow); border-color: var(--qa-green-500); }
.surah-no {
  flex: 0 0 46px; height: 46px; display: grid; place-items: center;
  font-weight: 700; color: var(--qa-green-700); background: var(--qa-green-100);
  border-radius: 14px; transform: rotate(45deg);
}
.surah-no span { transform: rotate(-45deg); }
.surah-name { font-weight: 600; margin: 0; }
.surah-meta { font-size: .82rem; color: var(--qa-muted); margin: 0; }
.surah-arabic { font-family: "Amiri", serif; font-size: 1.35rem; color: var(--qa-green-700); margin-left: auto; }
[data-bs-theme="dark"] .surah-arabic, [data-bs-theme="dark"] .surah-no { color: #7fdcb2; }

.topic-card { display: block; padding: 1.25rem; height: 100%; color: inherit; transition: .2s ease; }
.topic-card:hover { transform: translateY(-3px); box-shadow: var(--qa-shadow); border-color: var(--qa-gold); }
.topic-icon {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--qa-green-600), var(--qa-green-500)); color: #fff;
  font-size: 1.2rem; margin-bottom: .75rem;
}

.article-card { overflow: hidden; height: 100%; display: block; color: inherit; transition: .2s ease; }
.article-card:hover { transform: translateY(-3px); box-shadow: var(--qa-shadow); }
.article-card img { width: 100%; height: 160px; object-fit: cover; }
.article-card .p-3 { padding: 1rem; }

.stat-card { padding: 1rem; display: flex; align-items: center; gap: .85rem; }
.stat-card i { font-size: 1.5rem; color: var(--qa-green-600); }
.stat-value { font-size: 1.4rem; font-weight: 700; line-height: 1; }
.stat-label { font-size: .82rem; color: var(--qa-muted); }

/* ---------- ayah ---------- */
.ayah-card { padding: 1.25rem; margin-bottom: 1rem; scroll-margin-top: 100px; }
.ayah-card:target, .ayah-card.is-highlight { border-color: var(--qa-gold); box-shadow: 0 0 0 3px var(--qa-gold-soft); }
.ayah-card-head { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-bottom: .75rem; }
.ayah-badge {
  font-weight: 700; font-size: .85rem; color: var(--qa-green-700);
  background: var(--qa-green-100); border-radius: 999px; padding: .25rem .75rem;
}
[data-bs-theme="dark"] .ayah-badge { color: #7fdcb2; }
.ayah-actions { display: flex; gap: .35rem; }
.ayah-arabic {
  font-family: "Amiri", serif; font-size: var(--qa-arabic-size); line-height: 2.1;
  text-align: right; margin-bottom: .85rem; color: var(--qa-ink);
}
.ayah-bangla { font-size: 1.06rem; line-height: 1.95; margin-bottom: .35rem; }
.ayah-note { font-size: .9rem; color: var(--qa-muted); margin-bottom: 0; }
.ayah-ref { font-size: .85rem; color: var(--qa-muted); margin: .5rem 0 0; }
body.hide-arabic .ayah-arabic { display: none; }
body.hide-bangla .ayah-bangla { display: none; }

.bismillah {
  font-family: "Amiri", serif; font-size: 1.6rem; text-align: center;
  color: var(--qa-green-700); padding: 1rem 0 1.5rem;
}
[data-bs-theme="dark"] .bismillah { color: var(--qa-gold-soft); }

.surah-hero {
  border-radius: var(--qa-radius); padding: 1.75rem 1.25rem; text-align: center; color: #fff;
  background: linear-gradient(150deg, var(--qa-green-900), var(--qa-green-600));
  box-shadow: var(--qa-shadow);
}
.surah-hero h1 { color: #fff; }
.surah-hero .surah-hero-arabic { font-family: "Amiri", serif; font-size: 2.1rem; color: var(--qa-gold-soft); }
.surah-hero .badge { background: rgba(255,255,255,.18); }

.reader-toolbar {
  position: sticky; top: 72px; z-index: 1020; display: flex; flex-wrap: wrap; gap: .5rem;
  align-items: center; padding: .65rem; margin: 1rem 0 1.25rem;
  background: color-mix(in srgb, var(--qa-surface) 92%, transparent);
  border: 1px solid var(--qa-line); border-radius: 14px; backdrop-filter: blur(10px);
}
.reader-toolbar .form-control { max-width: 140px; }

.pager { display: flex; justify-content: space-between; gap: .75rem; margin-top: 2rem; }

/* ---------- chat ---------- */
.chat-avatar {
  width: 54px; height: 54px; border-radius: 18px; display: inline-grid; place-items: center;
  background: linear-gradient(140deg, var(--qa-green-700), var(--qa-green-500)); color: #fff; font-size: 1.5rem;
}
.chat-shell { overflow: hidden; }
.chat-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .75rem 1rem; border-bottom: 1px solid var(--qa-line);
}
.chat-window { padding: 1rem; min-height: 46vh; max-height: 62vh; overflow-y: auto; display: flex; flex-direction: column; gap: .85rem; }
.msg { max-width: 92%; padding: .8rem 1rem; border-radius: 16px; animation: rise .22s ease; }
.msg-user { align-self: flex-end; background: var(--qa-green-600); color: #fff; border-bottom-right-radius: 5px; }
.msg-ai { align-self: flex-start; background: var(--qa-green-100); border-bottom-left-radius: 5px; }
.msg-ai .ayah-card { margin: .75rem 0 0; }
.msg-intro { margin: 0; font-weight: 500; }
.msg-time { font-size: .72rem; opacity: .7; margin-top: .35rem; }
.typing span {
  display: inline-block; width: 7px; height: 7px; margin-right: 3px; border-radius: 50%;
  background: var(--qa-green-600); animation: blink 1.1s infinite;
}
.typing span:nth-child(2) { animation-delay: .18s; }
.typing span:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.chat-suggestions { display: flex; flex-wrap: wrap; gap: .45rem; padding: 0 1rem .75rem; }
.chat-composer { display: flex; gap: .5rem; padding: .75rem 1rem 1rem; border-top: 1px solid var(--qa-line); }
.chat-composer textarea { resize: none; border-radius: 14px; max-height: 140px; }
.chat-composer .btn { border-radius: 14px; padding-inline: 1.1rem; }

/* ---------- share modal / toast ---------- */
.share-card {
  background: linear-gradient(150deg, var(--qa-green-900), var(--qa-green-600));
  color: #fff; border-radius: var(--qa-radius); padding: 1.5rem; text-align: center;
}
.share-arabic { font-family: "Amiri", serif; font-size: 1.6rem; line-height: 2; }
.share-bangla { font-size: 1rem; opacity: .92; }
.share-ref { font-size: .85rem; color: var(--qa-gold-soft); margin: 0; }
.btn-share { border: 1px solid var(--qa-line); border-radius: 12px; font-size: .9rem; }
.btn-share:hover { background: var(--qa-green-100); }

.toast-stack { position: fixed; left: 50%; bottom: 1.25rem; transform: translateX(-50%); z-index: 1090; display: grid; gap: .5rem; }
.toast-mini {
  background: var(--qa-ink); color: var(--qa-body); padding: .6rem 1rem; border-radius: 999px;
  font-size: .9rem; box-shadow: var(--qa-shadow); animation: rise .2s ease;
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: 3rem; padding: 2.5rem 0 1.5rem; color: rgba(255,255,255,.82);
  background: linear-gradient(160deg, var(--qa-green-900), #04241a);
}
.site-footer h2, .site-footer h3 { color: #fff; font-size: 1rem; }
.site-footer a { color: rgba(255,255,255,.8); }
.site-footer a:hover { color: var(--qa-gold-soft); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 1.5rem; padding-top: 1rem; font-size: .85rem; }

/* ---------- article body ---------- */
.article-content { font-size: 1.05rem; line-height: 1.95; }
.article-content h2, .article-content h3 { margin-top: 1.75rem; }
.article-content img { max-width: 100%; border-radius: var(--qa-radius); }
.article-content blockquote {
  border-left: 4px solid var(--qa-green-500); background: var(--qa-green-100);
  padding: .85rem 1rem; border-radius: 0 12px 12px 0;
}

/* ---------- admin ---------- */
.blank-body, .admin-body { background: var(--qa-body); }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.login-card { width: 100%; max-width: 400px; background: var(--qa-surface); border: 1px solid var(--qa-line); border-radius: var(--qa-radius); padding: 2rem; box-shadow: var(--qa-shadow); }

.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px; flex: 0 0 240px; display: flex; flex-direction: column;
  background: linear-gradient(180deg, var(--qa-green-900), #062b1e); color: #fff; position: sticky; top: 0; height: 100vh;
}
.admin-brand { display: block; padding: 1.15rem 1rem; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,.1); }
.admin-nav { padding: .75rem; display: grid; gap: .2rem; }
.admin-nav-link { display: flex; align-items: center; gap: .6rem; padding: .6rem .75rem; border-radius: 10px; color: rgba(255,255,255,.78); font-size: .93rem; }
.admin-nav-link:hover, .admin-nav-link.active { background: rgba(255,255,255,.12); color: #fff; }
.admin-main { flex: 1 1 auto; min-width: 0; }
.admin-topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .85rem 1.25rem; background: var(--qa-surface); border-bottom: 1px solid var(--qa-line);
  position: sticky; top: 0; z-index: 10;
}
.admin-content { padding: 1.25rem; }
.admin-card { padding: 1.1rem; }
.rich-editor { min-height: 220px; overflow-y: auto; }
.rich-editor:focus { outline: none; border-color: var(--qa-green-500); }

@media (max-width: 767.98px) {
  :root { --qa-arabic-size: 1.6rem; }
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; flex: none; height: auto; position: static; }
  .admin-nav { grid-auto-flow: column; overflow-x: auto; grid-auto-columns: max-content; }
  .admin-sidebar form { display: none; }
  .reader-toolbar { top: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}