/* ============================================================
   sierra.css — SIERRA SEA「Editorial」Skin  v2.0（上一版，未經整靚打磨）
   ------------------------------------------------------------
   用法：project.skin = "sierra"
   設計語言：雜誌編輯式 — 0 圓角、髮絲線、大留白、襯線展示字、
   全幅相片 hero、編號大行特色、滿版 4 欄圖輯
   預約頁：跟返平時嘅預約欄表格樣式（唔做特別客製）
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@500;600;700;900&display=swap');

html[data-skin="sierra"] {
  --bg: #F7F5F0;
  --bg-soft: #EFEBE2;
  --surface: #FFFFFF;
  --text: #2A3433;
  --ink: #14201F;
  --muted: #6E7A78;
  --sea: #1F4E4A;
  --sea-deep: #123634;
  --gold: #B98A46;
  --gold-deep: #9A7134;
  --border: #DED9CF;
  --border-strong: #C6BFB1;
  --radius: 0px;
  --shadow-flat: none;

  --primary: var(--ink);
  --accent: var(--gold);
  --on-accent: #FFFFFF;
  --hero-bg: var(--ink);
  --hero-text: #FFFFFF;
  --footer-bg: #0E1717;
  --footer-brand: #FFFFFF;
  --footer-muted: rgba(247, 245, 240, 0.62);
  --font: "Noto Sans HK", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  --font-display: "Noto Serif TC", "Playfair Display", "Songti TC", "PingFang TC", serif;
}

html[data-skin="sierra"] body {
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}
html[data-skin="sierra"] ::selection { background: rgba(185, 138, 70, 0.28); }
html[data-skin="sierra"] a { color: var(--ink); }

html[data-skin="sierra"] h1,
html[data-skin="sierra"] h2,
html[data-skin="sierra"] h3,
html[data-skin="sierra"] h4,
html[data-skin="sierra"] .hero-title,
html[data-skin="sierra"] .section-title,
html[data-skin="sierra"] .cta-heading,
html[data-skin="sierra"] .gate-title {
  font-family: var(--font-display);
  color: var(--ink);
  letter-spacing: 0;
  font-weight: 700;
}

html[data-skin="sierra"] .container { max-width: 1220px; padding-inline: 28px; }

/* ---------- section 節奏：大留白 + 髮絲分隔 ---------- */
html[data-skin="sierra"] .section { padding: 108px 0; border-bottom: 1px solid var(--border); }
html[data-skin="sierra"] .section-head { margin-bottom: 60px; max-width: 760px; }
html[data-skin="sierra"] .section-head .section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
html[data-skin="sierra"] .section-head .section-title::after {
  content: ""; display: block; width: 56px; height: 2px;
  margin: 1em 0 0; background: var(--gold);
}
html[data-skin="sierra"] .section-sub { color: var(--muted); font-size: 1rem; max-width: 660px; margin: 0; }
html[data-skin="sierra"] .eyebrow {
  color: var(--gold-deep);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 14px;
}

/* ---------- 按鈕：方角、大寫字距 ---------- */
html[data-skin="sierra"] .btn {
  border-radius: 0;
  padding: 15px 30px;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  transition: background .25s, color .25s, border-color .25s;
}
html[data-skin="sierra"] .btn-accent,
html[data-skin="sierra"] .hero .btn-primary,
html[data-skin="sierra"] .gate .btn-primary,
html[data-skin="sierra"] .cta-btn {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}
html[data-skin="sierra"] .btn-accent:hover,
html[data-skin="sierra"] .cta-btn:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
html[data-skin="sierra"] .btn-ghost { background: transparent; color: var(--ink); border-color: var(--border-strong); }
html[data-skin="sierra"] .btn-ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- navbar ---------- */
html[data-skin="sierra"] .navbar {
  background: rgba(247, 245, 240, 0.94);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--border);
}
html[data-skin="sierra"] .nav-inner { height: 84px; }
html[data-skin="sierra"] .brand { color: var(--ink); font-family: var(--font-display); font-size: 1.3rem; letter-spacing: 0.16em; }
html[data-skin="sierra"] .brand::before { background: var(--gold); }
html[data-skin="sierra"] .brand-logo { height: 40px; }
html[data-skin="sierra"] .nav-link {
  color: var(--text);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}
html[data-skin="sierra"] .nav-link:hover { color: var(--gold-deep); }
html[data-skin="sierra"] .nav-link.active { color: var(--ink); box-shadow: inset 0 -2px 0 var(--gold); }
html[data-skin="sierra"] .nav-toggle-bar { background: var(--ink); }

/* ---------- hero：全幅相片（深底白字） ---------- */
html[data-skin="sierra"] .hero {
  background: var(--ink);
  color: #fff;
  border-radius: 0;
  position: relative;
  overflow: hidden;
}
html[data-skin="sierra"] .hero[style*="background-image"] {
  min-height: 78vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
}
html[data-skin="sierra"] .hero[style*="background-image"]::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,23,23,.62) 0%, rgba(14,23,23,.38) 45%, rgba(14,23,23,.72) 100%);
  z-index: 0;
}
html[data-skin="sierra"] .hero-inner { position: relative; z-index: 1; }
html[data-skin="sierra"] .hero .eyebrow { color: rgba(255,255,255,.82); }
html[data-skin="sierra"] .hero-title { color: #fff; font-size: clamp(2.6rem, 6.4vw, 5.1rem); line-height: 1.06; letter-spacing: 0.01em; }
html[data-skin="sierra"] .hero-sub { color: rgba(255,255,255,.86); max-width: 640px; font-size: 1.02rem; line-height: 1.9; }
html[data-skin="sierra"] .hero .btn-primary { background: var(--gold); border-color: var(--gold); }
html[data-skin="sierra"] .hero .btn-ghost { color: #fff; border-color: rgba(255,255,255,.55); background: transparent; }
html[data-skin="sierra"] .hero .btn-ghost:hover { background: #fff; border-color: #fff; color: var(--ink); }

html[data-skin="sierra"] .hero.split { background: var(--ink); color: #fff; }
html[data-skin="sierra"] .hero.split .hero-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 0; align-items: stretch; padding: 0; }
html[data-skin="sierra"] .hero.split .hero-copy { padding: 96px 60px 96px 0; }
html[data-skin="sierra"] .hero.split .hero-title { color: #fff; }
html[data-skin="sierra"] .hero.split .hero-sub { color: rgba(255,255,255,.84); }
html[data-skin="sierra"] .hero-frame { margin: 0; border: 0; box-shadow: none; }
html[data-skin="sierra"] .hero-frame img { border-radius: 0; width: 100%; height: 100%; object-fit: cover; }
html[data-skin="sierra"] .hero-frame figcaption { color: rgba(255,255,255,.6); font-size: 0.74rem; letter-spacing: 0.08em; }

html[data-skin="sierra"] .hero.sub {
  background: var(--bg-soft);
  color: var(--ink);
  padding: 92px 0 76px;
  border-bottom: 1px solid var(--border);
}
html[data-skin="sierra"] .hero.sub .hero-inner { max-width: 1220px; }
html[data-skin="sierra"] .hero.sub .hero-title { color: var(--ink); font-size: clamp(2.1rem, 4.2vw, 3.2rem); }
html[data-skin="sierra"] .hero.sub .hero-sub { color: var(--muted); }
html[data-skin="sierra"] .hero.sub .eyebrow { color: var(--gold-deep); }
html[data-skin="sierra"] .hero.sub .btn-ghost { color: var(--ink); border-color: var(--border-strong); }

/* ---------- 特色區：編號大行 ---------- */
html[data-skin="sierra"] .features-grid { display: block; border-top: 1px solid var(--border); counter-reset: sierra-feature; }
html[data-skin="sierra"] .feature-card {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  box-shadow: none;
  padding: 34px 0;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 26px;
  align-items: start;
  position: relative;
  counter-increment: sierra-feature;
}
html[data-skin="sierra"] .feature-card::before {
  content: counter(sierra-feature, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold);
  line-height: 1;
  padding-top: 4px;
}
html[data-skin="sierra"] .feature-card:hover { background: transparent; transform: none; }
html[data-skin="sierra"] .feature-icon { color: var(--sea); }
html[data-skin="sierra"] .feature-icon svg { width: 26px; height: 26px; stroke-width: 1.25; }
html[data-skin="sierra"] .card-title { font-family: var(--font-display); font-size: 1.32rem; margin: 0 0 8px; }
html[data-skin="sierra"] .card-text { color: var(--muted); margin: 0; }
html[data-skin="sierra"] .card-link { color: var(--gold-deep); letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.76rem; font-weight: 700; }
html[data-skin="sierra"] .card { border-radius: 0; border: 1px solid var(--border); box-shadow: none; background: var(--surface); }

/* ---------- 圖輯：滿版 4 欄、0 gap ---------- */
html[data-skin="sierra"] .gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }
html[data-skin="sierra"] .gallery-item { border-radius: 0; overflow: hidden; position: relative; }
html[data-skin="sierra"] .gallery-item img { border-radius: 0; width: 100%; height: 300px; object-fit: cover; transition: transform .7s ease; }
html[data-skin="sierra"] .gallery-item:hover img { transform: scale(1.05); }

/* ---------- 表格：編輯式髮絲線 ---------- */
html[data-skin="sierra"] .table-wrap { border: 0; border-top: 1px solid var(--ink); border-radius: 0; overflow: visible; }
html[data-skin="sierra"] .data-table { width: 100%; border-collapse: collapse; background: transparent; }
html[data-skin="sierra"] .data-table thead th {
  background: transparent;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 16px 14px;
  text-align: left;
}
html[data-skin="sierra"] .data-table td { border-bottom: 1px solid var(--border); padding: 18px 14px; background: transparent; }
html[data-skin="sierra"] .data-table tbody tr:nth-child(odd) { background: transparent; }
html[data-skin="sierra"] .data-table tbody tr:hover { background: rgba(31, 78, 74, 0.04); }
html[data-skin="sierra"] .data-table td:first-child { color: var(--ink); font-weight: 700; }

/* ---------- 長文 ---------- */
html[data-skin="sierra"] .text-body { max-width: 780px; }
html[data-skin="sierra"] .text-body p { color: var(--text); margin-bottom: 1.35em; }
html[data-skin="sierra"] .text-body .text-lead { font-family: var(--font-display); font-size: 1.36rem; line-height: 1.7; color: var(--ink); }

/* ---------- 預約表單：跟返平時樣式（沿用 forge.css 標準卡／欄位，只保留必要修正） ---------- */
html[data-skin="sierra"] .booking-note:empty { display: none; }
html[data-skin="sierra"] .section-sub:empty { display: none; }
html[data-skin="sierra"] .field-status.err { color: #A8433A; }

/* ---------- 聯絡卡 ---------- */
html[data-skin="sierra"] .contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--border); }
html[data-skin="sierra"] .contact-card {
  border: 0; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border);
  border-radius: 0; background: transparent; padding: 40px 32px; box-shadow: none;
}
html[data-skin="sierra"] .contact-card .feature-icon { color: var(--gold-deep); }
html[data-skin="sierra"] .contact-card .contact-main { font-family: var(--font-display); font-size: 1.1rem; color: var(--ink); }
html[data-skin="sierra"] .contact-card .contact-note { color: var(--muted); font-size: 0.86rem; }
html[data-skin="sierra"] .contact-wa-link { color: var(--gold-deep); letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.76rem; font-weight: 700; }

/* ---------- CTA band ---------- */
html[data-skin="sierra"] .cta-band { background: var(--sea-deep); color: #fff; border: 0; padding: 84px 0; }
html[data-skin="sierra"] .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
html[data-skin="sierra"] .cta-heading { color: #fff; font-size: clamp(1.7rem, 3vw, 2.4rem); }
html[data-skin="sierra"] .cta-text { color: rgba(255,255,255,.78); max-width: 560px; }
html[data-skin="sierra"] .cta-btn { background: var(--gold); border-color: var(--gold); color: #fff; }

/* ---------- footer ---------- */
html[data-skin="sierra"] .footer { background: var(--footer-bg); color: #fff; padding: 76px 0 40px; }
html[data-skin="sierra"] .footer .brand { color: #fff; font-family: var(--font-display); letter-spacing: 0.18em; }
html[data-skin="sierra"] .footer .brand::before { background: var(--gold); }
html[data-skin="sierra"] .footer-tagline { color: var(--footer-muted); }
html[data-skin="sierra"] .footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding-top: 26px; margin-top: 40px; }
html[data-skin="sierra"] .footer-copy { color: rgba(255,255,255,.72); font-size: 0.82rem; letter-spacing: 0.06em; }
html[data-skin="sierra"] .footer-disclaimer { color: rgba(255,255,255,.42); font-size: 0.72rem; line-height: 1.75; }

/* ---------- gate ---------- */
html[data-skin="sierra"] .gate { background: var(--ink); }
html[data-skin="sierra"] .gate-title { color: #fff; letter-spacing: 0.08em; }
html[data-skin="sierra"] .gate-sub { color: rgba(255,255,255,.7); }
html[data-skin="sierra"] .gate-kicker { color: var(--gold); letter-spacing: 0.24em; text-transform: uppercase; }

/* ---------- 浮動掣：帶文字（WhatsApp查詢 / 填寫預約表格） ---------- */
html[data-skin="sierra"] .float-stack { gap: 8px; align-items: flex-end; right: 24px; bottom: 24px; }
html[data-skin="sierra"] .float-btn,
html[data-skin="sierra"] .float-wa,
html[data-skin="sierra"] .float-booking {
  width: auto;
  height: auto;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  background: var(--ink);
  color: #fff;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: background .25s ease, transform .25s ease;
}
html[data-skin="sierra"] .float-wa { background: #1FA855; border-color: #1FA855; }
html[data-skin="sierra"] .float-booking { background: var(--gold); border-color: var(--gold); color: #fff; }
html[data-skin="sierra"] .float-btn svg { width: 20px; height: 20px; flex: none; }
/* 文字常駐顯示（唔再靠 hover tooltip） */
html[data-skin="sierra"] .float-btn-label {
  position: static;
  transform: none;
  opacity: 1;
  pointer-events: auto;
  background: transparent;
  color: inherit;
  padding: 0;
  border-radius: 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}
html[data-skin="sierra"] .float-btn-label::after { display: none; }
html[data-skin="sierra"] .float-btn:hover { transform: translateY(-2px); background: var(--sea); border-color: var(--sea); }
html[data-skin="sierra"] .float-wa:hover { background: #178C46; border-color: #178C46; }
html[data-skin="sierra"] .float-booking:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
@media (max-width: 768px) {
  html[data-skin="sierra"] .float-stack { right: 14px; bottom: 14px; gap: 6px; }
  html[data-skin="sierra"] .float-btn { min-height: 42px; padding: 0 15px; font-size: 0.75rem; }
  html[data-skin="sierra"] .float-btn-label { font-size: 0.75rem; }
  html[data-skin="sierra"] .float-btn svg { width: 18px; height: 18px; }
}

/* ---------- 響應式 ---------- */
@media (max-width: 1100px) {
  html[data-skin="sierra"] .hero.split .hero-copy { padding: 72px 36px 72px 0; }
  html[data-skin="sierra"] .hero.split .hero-title { font-size: clamp(2.2rem, 5vw, 3.4rem); }
}
@media (max-width: 992px) {
  html[data-skin="sierra"] .section { padding: 78px 0; }
  html[data-skin="sierra"] .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  html[data-skin="sierra"] .hero.split .hero-inner { grid-template-columns: 1fr; }
  html[data-skin="sierra"] .hero.split .hero-copy { padding: 68px 0 44px; }
  html[data-skin="sierra"] .hero-frame img { height: 320px; }
  html[data-skin="sierra"] .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  html[data-skin="sierra"] .nav-inner { height: 68px; }
  html[data-skin="sierra"] .nav-links { background: var(--bg); border-bottom: 1px solid var(--border); }
  html[data-skin="sierra"] .section { padding: 60px 0; }
  html[data-skin="sierra"] .feature-card { grid-template-columns: 46px 1fr; gap: 16px; }
  html[data-skin="sierra"] .feature-card::before { font-size: 1.2rem; }
  html[data-skin="sierra"] .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  html[data-skin="sierra"] .gallery-item img { height: 210px; }
  html[data-skin="sierra"] .cta-inner { flex-direction: column; align-items: flex-start; }
  html[data-skin="sierra"] .cta-btn { width: 100%; text-align: center; }
}
@media (max-width: 600px) {
  html[data-skin="sierra"] .hero-title { font-size: clamp(2.1rem, 9vw, 2.9rem); }
  html[data-skin="sierra"] .gallery-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 993px) {
  html[data-skin="sierra"] .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}