/* Holy Catalpa 官網共用樣式
   配色：C Modern Eucalyptus（Rain 2026-09-22 揀）
   相片：Unsplash 免費授權（可商用、唔使署名），來源見 ../README.md */
:root {
  --primary: #5F7A72; --secondary: #B7C6BE; --bg: #F0F4F1; --text: #2C3A39; --accent: #A98F6A;
}
:root {
  --muted: color-mix(in srgb, var(--text) 64%, var(--bg));
  --line: color-mix(in srgb, var(--text) 14%, var(--bg));
  --surface: color-mix(in srgb, var(--bg) 55%, white);
  --on-primary: color-mix(in srgb, var(--bg) 94%, white);
  --display: "Noto Serif TC", "Songti TC", serif;
  --body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --latin: "Cormorant Garamond", Georgia, serif;
  color-scheme: light;
}
html[lang="en"] {
  --display: "Cormorant Garamond", Georgia, serif;
  --body: "Figtree", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 16px/1.8 var(--body);
  padding-inline: 20px;
  -webkit-font-smoothing: antialiased;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.wrap { max-width: 1120px; margin-inline: auto; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
img { max-width: 100%; }
.eyebrow { font: 500 12px/1.4 var(--body); letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
html[lang="zh-Hant"] .eyebrow { letter-spacing: .3em; }

/* Header */
header.site {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  margin-inline: -20px; padding: 14px 20px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; }
.mark { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.mono {
  width: 40px; height: 40px; object-fit: contain; flex: none; display: block;
  border: 0; background: none; box-shadow: none;
}
.about-logo { width: min(220px, 78%); height: auto; display: block; margin: 0 0 22px; border: 0; }
.mark-text { display: flex; flex-direction: column; line-height: 1.2; }
.mark-text b { font: 600 14px/1.2 "Figtree", var(--body); letter-spacing: .16em; text-transform: uppercase; color: var(--primary); }
.mark-text span { font: 500 11px/1.4 var(--body); color: var(--muted); letter-spacing: .3em; }
.nav-group { display: flex; align-items: center; gap: 8px 22px; flex-wrap: wrap; }
nav.site { display: flex; gap: 6px 20px; flex-wrap: wrap; font-size: 14px; }
nav.site a { text-decoration: none; color: var(--muted); }
nav.site a:hover { color: var(--primary); }
.lang { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); border-left: 1px solid var(--line); padding-left: 18px; }
.lang a { text-decoration: none; }
.lang [aria-current="true"] { color: var(--primary); font-weight: 600; }

/* Hero */
.hero {
  margin-inline: -20px; padding: 120px 20px 112px; color: var(--on-primary);
  background:
    linear-gradient(90deg,
      color-mix(in srgb, var(--primary) 92%, #1f2b28) 0%,
      color-mix(in srgb, var(--primary) 80%, transparent) 48%,
      color-mix(in srgb, var(--primary) 30%, transparent) 100%),
    var(--primary) url("img/hero.jpg") center 40% / cover no-repeat;
}
.hero h1 {
  font: 600 clamp(32px, 5.4vw, 60px)/1.3 var(--display);
  margin: 20px 0 28px; max-width: 16em; text-wrap: balance; letter-spacing: .02em;
}
html[lang="en"] .hero h1 { font-weight: 500; font-size: clamp(42px, 6.6vw, 76px); line-height: 1.08; letter-spacing: 0; }
.hero p { max-width: 36em; font-size: 17px; margin: 0; color: color-mix(in srgb, var(--on-primary) 86%, var(--primary)); }
.hero .eyebrow { color: color-mix(in srgb, var(--accent) 80%, var(--on-primary)); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  padding: 12px 22px; font: 500 15px/1.2 var(--body); border: 1px solid var(--on-primary);
  transition: background .2s ease, color .2s ease;
}
.btn.solid { background: var(--on-primary); color: var(--primary); }
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--text); }

/* Sections */
section.block { padding-block: 96px; }
section.block + section.block { border-top: 1px solid var(--line); }
.head { display: grid; grid-template-columns: 1fr 1.4fr; gap: 16px 48px; align-items: end; margin-bottom: 48px; }
.head h2 { font: 600 clamp(26px, 3.4vw, 38px)/1.3 var(--display); color: var(--primary); margin: 12px 0 0; text-wrap: balance; }
html[lang="en"] .head h2 { font-weight: 500; font-size: clamp(32px, 4vw, 46px); line-height: 1.1; }
.head p { margin: 0; color: var(--muted); max-width: 34em; }

/* Business areas */
.areas { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--primary); }
.areas article { padding: 28px 24px 8px 0; }
.areas article + article { padding-left: 24px; border-left: 1px solid var(--line); }
.areas h3 { font: 600 21px/1.35 var(--display); color: var(--primary); margin: 0; }
html[lang="en"] .areas h3 { font-weight: 600; font-size: 24px; line-height: 1.2; }
.areas .en { font: 500 13px/1.5 "Figtree", sans-serif; color: var(--muted); letter-spacing: .04em; margin: 4px 0 16px; }
.areas ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 15px; }
.areas li::before { content: ""; display: inline-block; width: 5px; height: 5px; background: var(--accent); margin-right: 10px; vertical-align: middle; transform: translateY(-2px); }

/* Brands & projects: 每個項目用自己嘅品牌色 */
.brands { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.brand { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); text-decoration: none; }
.brand-face {
  background: var(--b-bg); color: var(--b-fg);
  aspect-ratio: 16 / 9; max-width: 100%; padding: 22px; display: flex; flex-direction: column; justify-content: flex-end;
}
.brand-face .kind { font: 500 11px/1.4 "Figtree", sans-serif; letter-spacing: .16em; text-transform: uppercase; opacity: .8; }
.brand-face b { font: 600 26px/1.15 var(--b-font, var(--latin)); margin-top: 6px; }
.brand-face b small { font: 500 16px/1.2 var(--body); margin-left: 8px; opacity: .85; }
.brand-body { padding: 18px 22px 22px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.brand-body p { margin: 0; font-size: 15px; color: var(--muted); }
.brand-body .go { margin-top: auto; font-size: 14px; font-weight: 500; color: var(--primary); }
.brand-body .go.soon { color: var(--muted); font-weight: 400; }
a.brand:hover .go { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 4px; }
a.brand { transition: transform .18s ease-out, box-shadow .18s ease-out; }
a.brand:hover, a.brand:focus-visible { transform: translateY(-3px); box-shadow: 0 14px 30px -22px var(--text); }
section[id] { scroll-margin-top: 90px; }
@media (prefers-reduced-motion: reduce) { a.brand { transition: none; } a.brand:hover { transform: none; } }

/* 網站設計作品頁（works.html，Rain 過去參與製作） */
.page-head { margin-inline: -20px; padding: 64px 20px 56px; background: var(--primary); color: var(--on-primary); }
.page-head .back { font-size: 14px; text-decoration: none; color: color-mix(in srgb, var(--on-primary) 80%, var(--primary)); }
.page-head .back:hover { color: var(--on-primary); }
.page-head h1 { font: 600 clamp(30px, 4.4vw, 48px)/1.25 var(--display); margin: 18px 0 8px; }
html[lang="en"] .page-head h1 { font-weight: 500; font-size: clamp(38px, 5vw, 58px); line-height: 1.1; }
.page-head p { margin: 0; color: color-mix(in srgb, var(--on-primary) 84%, var(--primary)); }
.works-page .wrap { display: grid; gap: 72px; }
.work-row { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: start; }
.work-info h2 { font: 600 28px/1.2 var(--latin); color: var(--primary); margin: 0 0 10px; }
.work-info p { margin: 0 0 4px; color: var(--muted); }
.work-info .year { font-variant-numeric: tabular-nums; }
.work-full { display: inline-block; margin-top: 18px; font-size: 14px; font-weight: 500; color: var(--primary); text-underline-offset: 4px; text-decoration-color: var(--accent); }
.frame { border: 1px solid var(--line); background: var(--surface); box-shadow: 0 18px 40px -24px color-mix(in srgb, var(--text) 45%, transparent); }
.frame-bar { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: color-mix(in srgb, var(--text) 18%, var(--bg)); }
.frame-hint { margin: 0; padding: 10px 14px; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line); }
.frame-view { max-height: 560px; overflow-y: auto; overscroll-behavior: contain; }
.frame-view img { display: block; width: 100%; height: auto; }

/* About */
.about { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; }
.about .lead { font: 600 clamp(24px, 3vw, 34px)/1.45 var(--display); color: var(--primary); margin: 12px 0 0; text-wrap: balance; }
html[lang="en"] .about .lead { font-weight: 500; font-size: clamp(30px, 3.6vw, 42px); line-height: 1.15; }
.about .prose p { margin: 0 0 18px; max-width: 34em; }
.about .core {
  margin-top: 28px; padding: 22px 24px; background: var(--surface); border-left: 3px solid var(--accent);
  font: 600 18px/1.6 var(--display); color: var(--primary);
}
html[lang="en"] .about .core { font-size: 21px; line-height: 1.35; }

.photo { display: block; width: 100%; max-width: 100%; height: auto; object-fit: cover; margin-top: 32px; }
.about .photo { aspect-ratio: 4 / 5; }
.contact .photo { aspect-ratio: 3 / 2; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; }
.topics { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 32px; }
.topics a { text-decoration: none; padding: 10px 18px; border: 1px solid var(--primary); color: var(--primary); font-size: 15px; }
.topics a:hover { background: var(--primary); color: var(--on-primary); }
dl.details { margin: 0; display: grid; grid-template-columns: 7em 1fr; gap: 12px 20px; font-size: 15px; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; }

footer.site { padding-block: 32px 44px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
footer.site .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* 預覽用配色切換（正式版會拎走） */
.preview-picker { margin-inline: -20px; padding: 12px 20px; background: #111; color: #f2f2f2; font: 500 14px/1.3 var(--body); }
.preview-picker .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.preview-picker button {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  font: 500 14px/1 "Figtree", var(--body); color: #f2f2f2; background: transparent;
  padding: 9px 14px; border: 1px solid #555;
}
.preview-picker button[aria-pressed="true"] { background: #f2f2f2; color: #111; border-color: #f2f2f2; }
.preview-picker .sw { display: inline-flex; }
.preview-picker .sw i { width: 14px; height: 14px; }

@media (max-width: 960px) {
  .areas { grid-template-columns: repeat(2, 1fr); }
  .areas article:nth-child(3) { padding-left: 0; border-left: 0; }
  .areas article:nth-child(n+3) { border-top: 1px solid var(--line); }
  .brands { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  section.block { padding-block: 64px; }
  .hero { padding-block: 64px 60px; }
  .head, .about, .contact { grid-template-columns: 1fr; gap: 20px; }
  .areas, .brands, .work-row { grid-template-columns: 1fr; }
  .work-row { gap: 20px; }
  /* 手機唔做框內捲動（容易以為頁面卡住），改做固定比例預覽，睇全圖撳連結 */
  .frame-hint { display: none; }
  .frame-view { max-height: none; overflow: hidden; aspect-ratio: 4 / 3; }
  .frame-view img { height: 100%; object-fit: cover; object-position: top; }
  /* 手機選單：品牌一行，選單一行可以橫向捲 */
  header.site { padding-block: 10px 4px; }
  .nav-group { width: 100%; flex-wrap: nowrap; gap: 12px; }
  nav.site { flex: 1; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; gap: 20px; }
  nav.site::-webkit-scrollbar { display: none; }
  nav.site a { white-space: nowrap; min-height: 44px; display: inline-flex; align-items: center; }
  .lang { flex: none; min-height: 44px; }
  section[id] { scroll-margin-top: 120px; }
  .page-head { padding-block: 44px 40px; }
  .brand-face { aspect-ratio: 21 / 9; }
  .hero { background:
    linear-gradient(180deg, color-mix(in srgb, var(--primary) 88%, #1f2b28), color-mix(in srgb, var(--primary) 72%, transparent)),
    var(--primary) url("img/hero.jpg") 70% center / cover no-repeat; }
  .about .photo { aspect-ratio: 16 / 10; }
  .areas article, .areas article + article { padding: 22px 0 14px; border-left: 0; }
  .areas article + article { border-top: 1px solid var(--line); }
  .lang { border-left: 0; padding-left: 0; }
  dl.details { grid-template-columns: 1fr; gap: 2px; }
  dl.details dd { margin-bottom: 10px; }
}