/* HanRead marketing site — shared styles
   Tokens mirror the app's real design system (cn-text-reader/src/styles.css) */

:root {
  --bg: #faf6f1;
  --card: #fffdfb;
  --fg: #281c17;
  --muted-bg: #f1eae3;
  --muted-fg: #6d6059;
  --accent-bg: #efe2d8;
  --border: #e1d9d1;
  --primary: #c52c2a;
  --primary-fg: #fdf7f0;
  --cat-grammar: #0065b0;
  --cat-words: #007654;
  --cat-compare: #7d45a2;
  --cat-profile: #00717a;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 999px;
  --font-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-serif: 'Source Serif 4', ui-serif, Georgia, serif;
  --font-cn-serif: 'Noto Serif SC', 'Source Serif 4', serif;
  --wrap: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: #9c221f; }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; margin: 0; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.kicker {
  display: inline-block;
  background: var(--accent-bg);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}
.section-head { max-width: 640px; margin: 0 0 40px; }
.section-head .kicker { margin-bottom: 10px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-top: 10px; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--primary); }

/* Nav */
.site-nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(250,246,241,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.site-nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.brand span { font-family: var(--font-serif); font-weight: 600; font-size: 20px; color: var(--fg); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links-primary { display: flex; gap: 32px; }
.nav-links-primary a { font-size: 15px; font-weight: 500; color: var(--muted-fg); }
.nav-links-primary a[aria-current="page"] { font-weight: 600; color: var(--fg); }
.nav-links-cta { display: flex; align-items: center; gap: 10px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; border-radius: var(--radius-full);
  padding: 14px 26px; font-size: 15px; border: none; cursor: pointer;
}
.btn svg { flex-shrink: 0; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { background: #ad2624; color: var(--primary-fg); }
.btn-onred { background: var(--primary-fg); color: var(--primary); }
.btn-onred:hover { background: #fff; color: var(--primary); }
.btn-outline { background: transparent; color: var(--fg); border: 1.5px solid var(--border); }
.btn-outline:hover { background: var(--muted-bg); color: var(--fg); }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-outline.btn-sm { padding: 8.5px 18.5px; }
.link-quiet { font-size: 15px; font-weight: 600; color: var(--fg); }
.back-link { font-size: 13px; font-weight: 600; color: var(--muted-fg); display: inline-flex; align-items: center; gap: 6px; margin-bottom: 18px; }

/* Hero */
.hero { padding: 72px 0 96px; }
.hero-grid { display: flex; align-items: center; gap: 56px; flex-wrap: wrap; }
.hero-copy { flex: 1 1 420px; min-width: 280px; }
.hero-copy h1 { font-size: clamp(2.25rem, 4.6vw, 3.4rem); line-height: 1.12; margin-bottom: 20px; }
.hero-copy p.lead { font-size: 18px; line-height: 1.6; color: var(--muted-fg); max-width: 460px; margin: 0 0 28px; }
.hero-cta-row { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 18px; }
.trust-line { font-size: 13px; color: var(--muted-fg); margin: 0; }
.hero-art { flex: 1 1 320px; min-width: 280px; display: flex; justify-content: center; position: relative; }
.hero-watermark {
  position: absolute; inset: -40px; display: flex; align-items: center; justify-content: center;
  z-index: 0; pointer-events: none;
}
.hero-watermark span { font-family: var(--font-cn-serif); font-weight: 700; font-size: 420px; color: var(--primary); opacity: 0.06; line-height: 1; }
.hero-shot { position: relative; z-index: 1; width: 280px; max-width: 100%; border-radius: 28px; box-shadow: 0 24px 60px -20px rgba(40,28,23,0.35); border: 1px solid var(--border); }

/* Article hero (content pages) */
.article-hero { padding: 64px 0 24px; }
.article-grid { display: flex; gap: 56px; flex-wrap: wrap-reverse; align-items: flex-start; }
.article-copy { flex: 1 1 480px; min-width: 300px; }
.article-copy h1 { font-size: clamp(2rem, 4.2vw, 3rem); line-height: 1.15; margin-bottom: 20px; }
.article-copy p.lead { font-size: 17px; line-height: 1.65; color: var(--muted-fg); margin: 0 0 24px; }
.article-art { flex: 1 1 260px; min-width: 240px; display: flex; justify-content: center; }
.article-shot { width: 260px; max-width: 100%; border-radius: 24px; box-shadow: 0 20px 50px -18px rgba(40,28,23,0.32); border: 1px solid var(--border); }
.prose { max-width: 720px; }
.prose p { font-size: 16px; line-height: 1.75; color: var(--muted-fg); margin: 0 0 16px; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.step-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--accent-bg); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.step-item h3 { font-size: 17px; font-weight: 700; margin: 0 0 8px; font-family: var(--font-sans); }
.step-item p { font-size: 15px; line-height: 1.6; color: var(--muted-fg); margin: 0; }

/* Feature / point cards */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.point-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 28px;
}
.card-sm { border-radius: var(--radius-lg); padding: 24px; }
.card-icon {
  width: 44px; height: 44px; border-radius: 14px; color: var(--primary-fg);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.card h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; font-family: var(--font-sans); }
.card p { font-size: 14.5px; line-height: 1.6; color: var(--muted-fg); margin: 0; }
.card-sm h3 { font-size: 15.5px; }
.card-sm p { font-size: 14px; }
.icon-red { background: var(--primary); }
.icon-blue { background: var(--cat-grammar); }
.icon-jade { background: var(--cat-words); }
.icon-violet { background: var(--cat-compare); }
.icon-teal { background: var(--cat-profile); }

/* Screenshots */
.shot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.shot-item { text-align: center; }
.shot-item img { width: 100%; max-width: 260px; margin: 0 auto 14px; border-radius: 22px; border: 1px solid var(--border); box-shadow: 0 16px 40px -18px rgba(40,28,23,0.3); }
.shot-item p { font-size: 14px; color: var(--muted-fg); margin: 0; }

/* Cross-links */
.cross-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; max-width: 640px; }
.cross-card { display: block; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px 28px; }
.cross-card .eyebrow { display: block; margin-bottom: 8px; }
.cross-card-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.cross-card-row span.title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; color: var(--fg); }
.cross-card-row svg { flex-shrink: 0; }

/* HSK level pills */
.level-row { display: flex; gap: 10px; flex-wrap: wrap; }
.level-pill { background: var(--accent-bg); color: var(--primary); font-size: 13px; font-weight: 700; padding: 7px 14px; border-radius: var(--radius-full); }

/* FAQ */
.faq-item { padding: 22px 0; }
.faq-item + .faq-item { border-top: 1px solid var(--border); }
.faq-item h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; font-family: var(--font-sans); }
.faq-item p { font-size: 15px; line-height: 1.6; color: var(--muted-fg); margin: 0; }

/* Final CTA banner */
.cta-banner {
  position: relative; overflow: hidden; background: var(--primary);
  border-radius: 32px; padding: 64px 40px; text-align: center;
}
.cta-banner-sm { padding: 56px 40px; }
.cta-watermark {
  position: absolute; right: -20px; bottom: -60px; font-family: var(--font-cn-serif);
  font-weight: 700; font-size: 320px; color: var(--primary-fg); opacity: 0.08; line-height: 1; pointer-events: none;
}
.cta-banner h2 { position: relative; font-size: clamp(1.8rem, 3.6vw, 2.6rem); color: var(--primary-fg); margin: 0 0 14px; }
.cta-banner p { position: relative; font-size: 16px; color: #f6d8d6; margin: 0 0 32px; }
.cta-banner .btn { position: relative; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 44px 0; }
.footer-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-about { max-width: 320px; }
.footer-about .brand { margin-bottom: 12px; }
.footer-about .brand img { width: 28px; height: 28px; }
.footer-about .brand span { font-size: 17px; }
.footer-about p { font-size: 13.5px; line-height: 1.6; color: var(--muted-fg); margin: 0; }
.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col p.label { font-size: 12px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted-fg); margin: 0 0 12px; }
.footer-col-links { display: flex; flex-direction: column; gap: 10px; }
.footer-col-links a { font-size: 14px; color: var(--fg); }
.footer-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border); }
.footer-bottom p { font-size: 12.5px; color: var(--muted-fg); margin: 0; }

/* Section spacing */
section { padding: 64px 0; }
.section-tight { padding: 40px 0; }
.section-loose { padding: 80px 0; }
.section-muted { background: var(--muted-bg); }

@media (max-width: 720px) {
  .nav-links-primary { display: none; }
  .steps-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .cross-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .site-nav .wrap { padding: 0 16px; }
  .nav-links-cta { gap: 8px; }
  .nav-links-cta .btn-outline.btn-sm { padding: 9px; }
  .nav-links-cta .btn-outline.btn-sm .btn-label { display: none; }
  .nav-links-cta .btn-primary.btn-sm { padding: 9px 14px; font-size: 13px; gap: 6px; }
}

@media (max-width: 380px) {
  .brand span { display: none; }
}

/* Guides: numbered steps, note callouts, guide hub cards */
.steps-list { counter-reset: step; list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 22px; }
.steps-list li { display: flex; gap: 16px; align-items: flex-start; }
.steps-list li::before {
  counter-increment: step; content: counter(step);
  flex-shrink: 0; width: 30px; height: 30px; margin-top: 1px;
  border-radius: var(--radius-full); background: var(--primary); color: var(--primary-fg);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13.5px;
}
.steps-list p { margin: 0; font-size: 15.5px; line-height: 1.65; color: var(--fg); padding-top: 3px; }
.steps-list code { background: var(--accent-bg); color: var(--primary); padding: 2px 7px; border-radius: 6px; font-size: 0.92em; font-family: ui-monospace, monospace; }

.note-box { background: var(--accent-bg); border-radius: var(--radius-lg); padding: 20px 22px; }
.note-box p { font-size: 14.5px; line-height: 1.6; color: var(--fg); margin: 0; }
.note-box strong { color: var(--primary); }

.guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.guide-card-icon {
  width: 44px; height: 44px; border-radius: 14px; background: var(--accent-bg); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}

/* Reference tables (pronunciation, measure words, etc.) */
.table-subhead { font-size: 13px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--primary); margin: 0 0 12px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); }
.data-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table th { background: var(--muted-bg); font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted-fg); white-space: nowrap; }
.data-table td { color: var(--fg); }
.data-table tr:last-child td { border-bottom: none; }
.data-table .hanzi { font-family: var(--font-cn-serif); font-size: 18px; white-space: nowrap; }
.data-table .pinyin { color: var(--primary); font-weight: 600; white-space: nowrap; }
.table-block + .table-block { margin-top: 28px; }

/* Name generator widget */
.name-gen-panel {
  position: relative; overflow: hidden;
  background: var(--accent-bg); border-radius: var(--radius-xl); padding: 8px;
}
.name-gen-panel-watermark {
  position: absolute; top: -34px; right: -16px; z-index: 0; pointer-events: none;
  font-family: var(--font-cn-serif); font-weight: 700; font-size: 200px; line-height: 1;
  color: var(--primary); opacity: 0.08;
}
.name-gen {
  position: relative; z-index: 1;
  background: var(--card); border: 1px solid var(--border); border-radius: calc(var(--radius-xl) - 6px);
  padding: 32px;
}
.name-gen-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 22px; }
.name-gen-field {
  display: flex; flex-direction: column; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted-fg);
}
.name-gen-field em { font-weight: 500; font-style: normal; text-transform: none; letter-spacing: normal; }
.name-gen-input-wrap { position: relative; }
.name-gen-input-icon {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  color: var(--muted-fg); pointer-events: none; transition: color 0.15s ease;
}
.name-gen-field input {
  font: inherit; font-size: 16px; font-weight: 500; text-transform: none; letter-spacing: normal;
  padding: 13px 16px 13px 42px; border-radius: var(--radius-md);
  border: 1.5px solid var(--border); background: var(--bg); color: var(--fg); width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.name-gen-field input::placeholder { color: var(--muted-fg); opacity: 0.65; }
.name-gen-field input:hover { border-color: #cfc4b8; }
.name-gen-field input:focus {
  outline: none; border-color: var(--primary); background: var(--card);
  box-shadow: 0 0 0 4px rgba(197,44,42,0.12);
}
.name-gen-input-wrap:focus-within .name-gen-input-icon { color: var(--primary); }
.name-gen-actions .btn { width: 100%; justify-content: center; }
.name-gen-error { color: var(--primary); font-size: 13.5px; font-weight: 600; margin: 12px 0 0; }
.name-gen-result { margin-top: 32px; padding-top: 32px; border-top: 1px dashed var(--border); text-align: center; }
.name-gen-seal {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: var(--primary-fg);
  border-radius: 20px; border: 2px solid var(--primary-fg);
  outline: 1.5px solid var(--primary); outline-offset: -9px;
  padding: 22px 30px; transform: rotate(-2deg);
  box-shadow: 0 18px 34px -16px rgba(40,28,23,0.5);
  font-family: var(--font-cn-serif); font-weight: 700; letter-spacing: 0.05em;
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
  animation: nameGenPop 0.4s ease;
}
@keyframes nameGenPop {
  from { opacity: 0; transform: rotate(-2deg) scale(0.9) translateY(6px); }
  to { opacity: 1; transform: rotate(-2deg) scale(1) translateY(0); }
}
.name-gen-pinyin { font-size: 16px; font-weight: 600; color: var(--primary); margin: 18px 0 26px; }
.name-gen-result .table-scroll { text-align: left; }
.name-gen-result-actions { display: flex; justify-content: center; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.name-gen-copied { color: var(--cat-words); }
@media (max-width: 560px) {
  .name-gen-fields { grid-template-columns: 1fr; }
  .name-gen { padding: 22px; }
  .name-gen-panel-watermark { font-size: 140px; }
}