:root {
  /* ຄ່າເລີ່ມຕົ້ນ — ຖືກແທນທີ່ດ້ວຍສີທີ່ເລືອກໃນ admin (theme_css() ໃນ inc/layout.php) */
  --brand: #1f5f3f;
  --brand-dark: #143f2a;
  --brand-light: #4c7f65;
  --brand-soft: #edf2ef;
  --brand-rgb: 31, 95, 63;
  --brand-contrast: #fff;
  --brand-contrast-rgb: 255, 255, 255;
  --accent: #f0b429;
  --accent-dark: #cc9923;
  --accent-rgb: 240, 180, 41;
  --accent-contrast: #212529;
  --footer-bg: #1d2a23;
  --footer-text: #dfe7e2;
  --footer-link: #f6d27f;
  --page-bg: #f5f3ee;
  --page-text: #2b2b2b;
  --wood-1: #8a5a2b;
  --wood-2: #6b4220;
  --wood-3: #4a2c13;
  --font: 'Noto Sans Lao', 'Noto Sans Thai', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --bs-success-rgb: var(--brand-rgb);
  --bs-warning-rgb: var(--accent-rgb);
  --bs-link-color-rgb: var(--brand-rgb);
  --bs-link-hover-color-rgb: var(--brand-rgb);
}

body { font-family: var(--font); background: var(--page-bg); color: var(--page-text); }
a { color: var(--brand); }
.site-main { min-height: 60vh; }
.site-nav {
  background: linear-gradient(90deg, var(--brand-dark), var(--brand)); box-shadow: 0 2px 8px rgba(0,0,0,.15);
  --bs-navbar-color: rgba(var(--brand-contrast-rgb), .8);
  --bs-navbar-hover-color: var(--brand-contrast);
  --bs-navbar-brand-color: var(--brand-contrast);
  --bs-navbar-brand-hover-color: var(--brand-contrast);
}
.site-nav .navbar-brand span { font-weight: 600; }
.site-nav .nav-link.active { color: var(--accent) !important; }
.site-footer { background: var(--footer-bg); color: var(--footer-text); }
.site-footer a { color: var(--footer-link); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .btn-outline-light { --bs-btn-color: var(--footer-text); --bs-btn-border-color: var(--footer-text); --bs-btn-hover-bg: var(--footer-text); --bs-btn-hover-color: var(--footer-bg); }
.site-footer .text-white-50 { color: var(--footer-text) !important; opacity: .65; }
body.embed { background: #fff; }

/* Bootstrap success/warning ໃຊ້ສີ theme */
.btn-success {
  --bs-btn-color: var(--brand-contrast); --bs-btn-bg: var(--brand); --bs-btn-border-color: var(--brand);
  --bs-btn-hover-color: var(--brand-contrast); --bs-btn-hover-bg: var(--brand-dark); --bs-btn-hover-border-color: var(--brand-dark);
  --bs-btn-active-color: var(--brand-contrast); --bs-btn-active-bg: var(--brand-dark); --bs-btn-active-border-color: var(--brand-dark);
  --bs-btn-focus-shadow-rgb: var(--brand-rgb);
}
.btn-outline-success {
  --bs-btn-color: var(--brand); --bs-btn-border-color: var(--brand);
  --bs-btn-hover-color: var(--brand-contrast); --bs-btn-hover-bg: var(--brand); --bs-btn-hover-border-color: var(--brand);
  --bs-btn-active-color: var(--brand-contrast); --bs-btn-active-bg: var(--brand); --bs-btn-active-border-color: var(--brand);
}
.btn-warning {
  --bs-btn-color: var(--accent-contrast); --bs-btn-bg: var(--accent); --bs-btn-border-color: var(--accent);
  --bs-btn-hover-color: var(--accent-contrast); --bs-btn-hover-bg: var(--accent-dark); --bs-btn-hover-border-color: var(--accent-dark);
  --bs-btn-active-color: var(--accent-contrast); --bs-btn-active-bg: var(--accent-dark); --bs-btn-active-border-color: var(--accent-dark);
  --bs-btn-focus-shadow-rgb: var(--accent-rgb);
}
.text-bg-success { color: var(--brand-contrast) !important; }
.text-bg-warning { color: var(--accent-contrast) !important; }
.nav-link.active.bg-success { color: var(--brand-contrast) !important; }
.form-control:focus, .form-select:focus { border-color: rgba(var(--brand-rgb), .5); box-shadow: 0 0 0 .25rem rgba(var(--brand-rgb), .2); }

/* ---------- Mobile hamburger + offcanvas menu ---------- */
.hamburger {
  display: flex; flex-direction: column; justify-content: space-between;
  width: 30px; height: 24px; padding: 0; border: 0; background: none; cursor: pointer;
}
.hamburger::before, .hamburger::after, .hamburger span {
  content: ""; display: block; width: 30px; height: 4px; border-radius: 10px; background: var(--brand-contrast);
}
.hamburger::before { transform-origin: 0 0; transition: transform .4s ease-in-out; }
.hamburger::after { transform-origin: 0 100%; transition: transform .4s ease-in-out; }
.hamburger.active span { display: none; }
.hamburger.active::before { transform: rotate(45deg); }
.hamburger.active::after { transform: rotate(-45deg); }
.mobile-menu { max-width: 85%; }
.mobile-menu .offcanvas-header { background: linear-gradient(90deg, var(--brand-dark), var(--brand)); color: var(--brand-contrast); margin-bottom: 1rem; }
.mobile-menu .menu-mobile { background: var(--brand-soft); border-top: 2px solid rgba(0,0,0,.08); }
.mobile-menu .menu-mobile a {
  display: flex; align-items: center; padding: 1rem 1rem 1rem 1.5rem; text-decoration: none;
  color: var(--brand-dark); font-weight: 600; border-bottom: 2px solid rgba(0,0,0,.08);
}
.mobile-menu .menu-mobile a .icon { width: 1.875rem; font-size: 1.2rem; }
.mobile-menu .menu-mobile a .text { flex: 1; padding-left: .75rem; }
.mobile-menu .menu-mobile a .caret { transition: transform .25s; }
.mobile-menu .menu-mobile a:not(.collapsed) .caret { transform: rotate(180deg); }
.mobile-menu .menu-mobile a.active, .mobile-menu .menu-mobile a:hover { background: var(--brand); color: var(--brand-contrast); }
.mobile-menu .submenu { background: #fff; }
.mobile-menu .submenu a { padding: .7rem 1rem .7rem 4.1rem; font-weight: 400; border-bottom-width: 1px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: var(--brand-contrast); padding: 4rem 0 3rem;
  background: radial-gradient(1200px 400px at 10% 0%, rgba(var(--accent-rgb),.25), transparent),
              linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 55%, var(--brand-light) 100%);
  background-size: cover; background-position: center;
}
.hero.has-image { color: #fff; }
.hero .stat-pill { background: rgba(var(--brand-contrast-rgb),.12); border-color: rgba(var(--brand-contrast-rgb),.2); }
.hero.has-image .stat-pill { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.2); }
.hero.has-image::before { content: ""; position: absolute; inset: 0; background: rgba(10,30,20,.55); }
.hero > .container { position: relative; }
.hero h1 { font-weight: 600; text-shadow: 0 2px 6px rgba(0,0,0,.3); }
.hero .search-big { max-width: 640px; }
.hero .search-big .form-control { padding: .8rem 1rem; }
.stat-pill { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); border-radius: 999px; padding: .35rem .9rem; display: inline-block; margin: .2rem; }

.section-title { font-weight: 600; border-left: 5px solid var(--accent); padding-left: .6rem; margin-bottom: 1rem; }

/* ---------- Wooden bookshelf ---------- */
.wood-shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  padding: 18px 18px 0;
  border-radius: 10px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.05) 30px, transparent 60px),
    repeating-linear-gradient(90deg, #5a3618 0 2px, #61391a 2px 7px, #5d3719 7px 11px),
    #5a3618;
  border: 10px solid var(--wood-2);
  border-bottom-width: 14px;
  box-shadow: inset 0 0 30px rgba(0,0,0,.5), 0 8px 20px rgba(0,0,0,.25);
}
.shelf-empty { grid-column: 1 / -1; text-align: center; color: rgba(255,255,255,.7); padding: 3rem 0 4rem; }
.book-item {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
  padding: 14px 10px 30px; text-decoration: none; min-height: 250px;
}
.book-item::after { /* ແຜ່ນໄມ້ຊັ້ນ */
  content: ""; position: absolute; left: -1px; right: -1px; bottom: 0; height: 22px;
  background: linear-gradient(180deg, #b07a43 0, var(--wood-1) 5px, var(--wood-2) 16px, var(--wood-3) 22px);
  box-shadow: 0 6px 8px -2px rgba(0,0,0,.6);
}
.book-cover {
  position: relative; display: block; width: 100%; max-width: 130px; aspect-ratio: 3 / 4.2;
  border-radius: 2px 5px 5px 2px; overflow: hidden; background: #ddd;
  box-shadow: -3px 0 0 rgba(0,0,0,.25) inset, 4px 6px 10px rgba(0,0,0,.55);
  transition: transform .25s ease, box-shadow .25s ease; transform-origin: bottom center; z-index: 1;
}
.book-cover::before { /* ສັນປົກ */
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px; z-index: 2;
  background: linear-gradient(90deg, rgba(0,0,0,.35), rgba(255,255,255,.25) 40%, rgba(0,0,0,.1));
}
.book-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.book-item:hover .book-cover { transform: translateY(-8px) scale(1.05); box-shadow: 8px 14px 18px rgba(0,0,0,.6); }
.book-title {
  position: absolute; left: 6px; right: 6px; bottom: 30px; z-index: 3; opacity: 0; transform: translateY(6px);
  background: rgba(0,0,0,.8); color: #fff; font-size: .78rem; line-height: 1.3; padding: .35rem .45rem; border-radius: 4px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; transition: .2s; pointer-events: none;
}
.book-item:hover .book-title, .book-item:focus .book-title { opacity: 1; transform: none; }
.book-type { position: absolute; top: 6px; right: 6px; background: var(--accent); color: #222; z-index: 3; }
@media (max-width: 575px) {
  .wood-shelf { grid-template-columns: repeat(3, 1fr); padding: 10px 6px 0; border-width: 6px; }
  .book-item { min-height: 180px; padding: 8px 6px 26px; }
}

.shelf-toolbar { background: #fff; border-radius: 10px; padding: .75rem 1rem; box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.shelf-toolbar .btn-type.active { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ---------- Book list ---------- */
.book-row { background: #fff; border-radius: 10px; padding: .75rem; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.book-row img { width: 72px; height: 100px; object-fit: cover; border-radius: 3px; box-shadow: 2px 3px 6px rgba(0,0,0,.25); }
.popular-list .list-group-item { display: flex; gap: .75rem; align-items: center; }
.popular-list img { width: 42px; height: 58px; object-fit: cover; border-radius: 3px; }
.rank { font-weight: 600; width: 1.8rem; height: 1.8rem; border-radius: 50%; background: var(--accent); color: #222; display: inline-flex; align-items: center; justify-content: center; flex: none; }

/* ---------- Book detail ---------- */
.book-detail-cover { width: 100%; max-width: 280px; border-radius: 4px; box-shadow: 8px 10px 22px rgba(0,0,0,.35); }
.meta-table th { width: 140px; color: #666; font-weight: 400; }

.link-banner img { max-height: 70px; width: auto; max-width: 100%; border-radius: 6px; }
.content-page img { max-width: 100%; height: auto; }