/*
 * Giao diện các trang tĩnh SEO/GEO của Chùa Sen (không JavaScript, không style nội tuyến).
 * Cùng bảng màu với ứng dụng: nền nâu đen, chữ kem, điểm nhấn vàng ánh nến.
 * Độ tương phản (WCAG): chữ kem #f5ead9 / nền #140d08 ≈ 15:1; chữ phụ #c4b198 ≈ 8:1;
 * vàng #e0b25c ≈ 9:1; chữ nâu #140d08 trên nút vàng ≈ 9:1.
 */
:root {
  color-scheme: dark;
  --bg: #140d08;
  --bg-elev: #1b120b;
  --surface: #221810;
  --surface-2: #2d2016;
  --border: rgb(236 200 140 / 0.2);
  --text: #f5ead9;
  --text-muted: #c4b198;
  --gold: #e0b25c;
  --gold-strong: #f3c973;
  --font-sans:
    system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', Arial, sans-serif;
  --font-serif:
    'Iowan Old Style', 'Palatino Linotype', Palatino, 'Noto Serif', 'Source Serif 4', Georgia,
    'Times New Roman', serif;
  --measure: 44rem;
  --tap: 44px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg)
    radial-gradient(60rem 28rem at 50% -8rem, rgb(224 178 92 / 0.12), transparent);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.75;
  overflow-wrap: break-word;
}

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: max(1rem, env(safe-area-inset-left, 0px))
    max(1rem, env(safe-area-inset-right, 0px));
}

main.wrap {
  flex: 1 0 auto;
  padding-block: 0.5rem 3rem;
}

a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--gold-strong);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--gold-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

img {
  max-width: 100%;
  height: auto;
}

/* ---- Bỏ qua tới nội dung ---- */
.skip {
  position: absolute;
  left: 0.5rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--gold);
  color: var(--bg);
  font-family: var(--font-sans);
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
}

.skip:focus {
  top: 0.5rem;
  color: var(--bg);
}

/* ---- Đầu trang ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgb(27 18 11 / 0.85);
  font-family: var(--font-sans);
}

.site-header__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.75rem;
  padding-block: 0.5rem;
}

.brand {
  margin-right: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: var(--tap);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand:hover {
  color: var(--gold-strong);
}

.brand img {
  border-radius: 8px;
}

/* Điện thoại: hàng trên là logo + nút Vào chùa, hàng dưới là các liên kết. */
.site-nav {
  order: 3;
  flex: 1 0 100%;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0 0.6rem;
  color: var(--text);
  font-size: 1rem;
  text-decoration: none;
  border-radius: 8px;
}

.site-nav a:not(.btn):hover,
.site-nav a[aria-current='page'] {
  color: var(--gold-strong);
  text-decoration: underline;
  text-underline-offset: 0.3em;
}

/* ---- Nút ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0.5rem 1.4rem;
  background: var(--gold);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  border-radius: 999px;
}

.btn:hover {
  background: var(--gold-strong);
  color: var(--bg);
}

.btn--small {
  padding-inline: 1rem;
}

.cta {
  margin: 1.5rem 0;
}

/* ---- Đường dẫn (breadcrumb) ---- */
.crumbs {
  padding-block: 0.9rem 0.25rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.crumbs ol {
  display: flex;
  /* Một dòng duy nhất: các mục trước giữ nguyên, mục hiện tại co lại và cắt bằng dấu … khi tiêu đề dài. */
  flex-wrap: nowrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.crumbs li {
  flex: none;
}

.crumbs li + li::before {
  content: '›';
  margin-right: 0.5rem;
  color: var(--text-muted);
}

.crumbs li[aria-current='page'] {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.crumbs a {
  color: var(--text-muted);
}

.crumbs a:hover {
  color: var(--gold-strong);
}

/* ---- Chữ ---- */
h1,
h2,
.brand,
.site-footer h2 {
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  margin: 1rem 0 0.75rem;
  font-size: clamp(1.75rem, 1.35rem + 2vw, 2.5rem);
  color: var(--gold-strong);
}

h2 {
  margin: 2.5rem 0 0.75rem;
  padding-top: 0.5rem;
  font-size: clamp(1.35rem, 1.15rem + 1vw, 1.7rem);
  color: var(--gold);
  scroll-margin-top: 1rem;
}

p,
ul,
ol {
  margin: 0 0 1.1rem;
}

ul,
ol {
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.45rem;
}

li::marker {
  color: var(--gold);
}

.lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text);
}

.subtitle {
  margin: -0.25rem 0 1rem;
  color: var(--text-muted);
  font-style: italic;
}

.meta {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.note {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ---- Hỏi đáp ---- */
.faq details {
  margin-bottom: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.faq summary {
  position: relative;
  display: block;
  min-height: var(--tap);
  padding: 0.7rem 2.75rem 0.7rem 1rem;
  font-weight: 600;
  line-height: 1.45;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: '+';
  position: absolute;
  top: 0.55rem;
  right: 1rem;
  color: var(--gold);
  font-family: var(--font-sans);
  font-size: 1.4rem;
  line-height: 1.3;
}

.faq details[open] > summary::after {
  content: '−';
}

.faq details > p {
  margin: 0;
  padding: 0 1rem 1rem;
}

/* ---- Toàn văn kinh ---- */
.sutra {
  margin-block: 1rem 1.5rem;
  padding: 0.25rem 1.1rem 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.sutra h2 {
  margin-top: 1rem;
}

.sutra .line {
  margin: 0 0 0.3rem;
  font-size: 1.25rem;
  line-height: 1.8;
}

.sutra .line--numbered {
  display: flex;
  gap: 0.75rem;
}

.sutra .no {
  flex: 0 0 2.25rem;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  line-height: 2.6;
  text-align: right;
  user-select: none;
}

.sutra .text {
  flex: 1 1 auto;
  min-width: 0;
}

/* ---- Danh sách ---- */
.cards {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.card {
  margin-bottom: 1rem;
  padding: 0.25rem 1.1rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.card h2 {
  margin-top: 0.75rem;
  font-size: 1.4rem;
}

.card h2 a {
  text-decoration: none;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  list-style: none;
}

.link-list li {
  margin: 0;
}

.link-list a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  text-decoration: none;
}

/* ---- Chân trang ---- */
.site-footer {
  flex-shrink: 0;
  padding-block: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.65;
}

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

.site-footer__title {
  margin-bottom: 0.4rem;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1.125rem;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.5rem 1.5rem;
  margin-block: 1rem;
}

.site-footer h2 {
  margin: 0 0 0.4rem;
  padding: 0;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer li {
  margin: 0;
}

.site-footer li a {
  display: inline-block;
  padding-block: 0.3rem;
}

.site-footer__privacy,
.site-footer__copy {
  margin: 0.4rem 0 0;
  font-size: 0.875rem;
}

@media (min-width: 40rem) {
  body {
    font-size: 1.1875rem;
  }

  .site-header__bar {
    flex-wrap: nowrap;
  }

  .site-nav {
    order: 0;
    flex: 0 1 auto;
  }
}

/* ---- In ra giấy: chỉ giữ nội dung, nền trắng chữ đen ---- */
@media print {
  :root {
    color-scheme: light;
  }

  body {
    display: block;
    background: #fff;
    color: #000;
    font-size: 12pt;
    line-height: 1.6;
  }

  .skip,
  .site-header,
  .crumbs,
  .cta,
  .more,
  .site-footer__cols,
  .site-footer__privacy {
    display: none;
  }

  .wrap {
    max-width: none;
    padding-inline: 0;
  }

  h1,
  h2,
  .lead,
  .subtitle,
  .meta,
  .note {
    color: #000;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  .sutra,
  .card,
  .faq details {
    border: 0;
    background: none;
    padding-inline: 0;
  }

  .sutra .line {
    font-size: 13pt;
    break-inside: avoid;
  }

  .sutra .no {
    color: #444;
  }

  .site-footer {
    border-top: 1px solid #999;
    background: none;
    color: #000;
    padding-block: 0.5rem 0;
  }

  .site-footer__title {
    color: #000;
  }

  h1,
  h2 {
    break-after: avoid;
  }
}