/* 油祥農場介紹網站：深色夜空主題。色彩、圓角、間距集中在 :root */
:root {
  color-scheme: dark;
  --bg: #0b1026;
  --bg-2: #141a3d;
  --card: rgba(255, 255, 255, 0.055);
  --card-hover: rgba(255, 255, 255, 0.09);
  --card-border: rgba(255, 255, 255, 0.12);
  --card-border-strong: rgba(255, 255, 255, 0.22);
  --text: #eef0ff;
  --muted: #c0c5e6;
  --dim: #9298c2;
  --accent: #ff9ec4;
  --accent-2: #ffd88a;
  --violet: #c58cff;
  --link: #ffc4dc;
  --good: #8be3b0;
  --bad: #ff9a8f;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(3, 5, 20, 0.35);
  --focus: 0 0 0 3px rgba(255, 216, 138, 0.6);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --header-h: 64px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); background: var(--bg-2); }
body {
  margin: 0;
  font-family: "Noto Sans TC", system-ui, -apple-system, "Microsoft JhengHei", sans-serif;
  color: var(--text);
  /* 底色延伸到整頁（不用 fixed，避免長頁面下方露出白底） */
  background-color: var(--bg-2);
  background-image: radial-gradient(1200px 700px at 80% -10%, #2b2a6b 0%, transparent 60%),
                    radial-gradient(900px 600px at -10% 40%, rgba(197, 140, 255, 0.10) 0%, transparent 60%),
                    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 900px);
  background-repeat: no-repeat;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 8px; }
code {
  background: rgba(255, 158, 196, 0.14);
  color: var(--accent);
  padding: 0.1em 0.45em;
  border-radius: 6px;
  font-size: 0.95em;
}
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 50; padding: 8px 14px; border-radius: 10px;
  background: var(--accent-2); color: #1b1035; font-weight: 700;
}
.skip-link:focus { top: 12px; }

/* ---------- 銀河星空（canvas 由 site.js 繪製；不支援時保留下方 CSS 漸層與星點） ---------- */
.sky {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden;
  background:
    radial-gradient(ellipse 120% 80% at 50% 120%, rgba(60, 40, 120, 0.35) 0%, transparent 60%),
    linear-gradient(180deg, #050816 0%, #0a0f2a 45%, #120f33 100%);
}
.sky::before {
  /* canvas 載入前的備用星點 */
  content: ""; position: absolute; inset: 0; opacity: 0.6;
  background-image:
    radial-gradient(1px 1px at 10% 20%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 30% 70%, #fff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 55% 15%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 70% 45%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 85% 80%, #fff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 92% 25%, #fff 50%, transparent 51%);
}
.sky.ready::before { display: none; }
.galaxy { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
/* 星雲：大片柔和色霧，捲動時由 JS 以較慢速度位移 */
.nebula {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.55; will-change: transform;
  mix-blend-mode: screen;
}
.nebula-a {
  width: 60vw; height: 60vw; left: -18vw; top: 8vh;
  background: radial-gradient(circle, rgba(120, 80, 255, 0.45) 0%, rgba(80, 40, 160, 0.18) 45%, transparent 70%);
}
.nebula-b {
  width: 55vw; height: 55vw; right: -15vw; top: 55vh;
  background: radial-gradient(circle, rgba(255, 110, 180, 0.30) 0%, rgba(90, 160, 255, 0.14) 50%, transparent 72%);
}
/* 月亮：捲動時以較慢速度移動（視差），不會蓋住內容 */
.moon {
  position: fixed; top: 96px; right: 7vw; z-index: 0; pointer-events: none; will-change: transform;
  width: 120px; height: 120px; border-radius: 50%;
  background:
    radial-gradient(circle at 62% 38%, rgba(0, 0, 0, 0.06) 0 10%, transparent 11%),
    radial-gradient(circle at 40% 64%, rgba(0, 0, 0, 0.07) 0 8%, transparent 9%),
    radial-gradient(circle at 30% 30%, #fffbea 0%, var(--accent-2) 58%, #e3ad55 100%);
  box-shadow: 0 0 50px 14px rgba(255, 216, 138, 0.25), 0 0 140px 50px rgba(255, 216, 138, 0.08);
}

/* ---------- 頂部導覽（固定、捲動後加上背景） ---------- */
.topbar, main, .footer { position: relative; z-index: 1; }
.topbar {
  position: sticky; top: 0; z-index: 20; transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
  border-bottom: 1px solid transparent;
}
.topbar.scrolled {
  background: rgba(11, 16, 38, 0.78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--card-border); box-shadow: 0 6px 20px rgba(3, 5, 20, 0.3);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: 1120px; margin: 0 auto; padding: 0 20px; min-height: var(--header-h);
}
.brand { font-weight: 900; font-size: 1.2rem; color: var(--text); letter-spacing: 0.04em; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand-moon { color: var(--accent-2); }
.nav { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
.nav a {
  position: relative; color: var(--muted); font-weight: 500; font-size: 0.94rem; padding: 6px 11px; border-radius: 999px;
  transition: color 0.15s, background-color 0.15s;
}
.nav a:hover { color: var(--text); text-decoration: none; background: var(--card); }
.nav a.active { color: var(--text); background: rgba(255, 158, 196, 0.14); }
.nav a.active::after {
  content: ""; position: absolute; left: 50%; bottom: 1px; width: 14px; height: 2px; margin-left: -7px;
  border-radius: 2px; background: var(--accent);
}
.nav .nav-cta {
  margin-left: 8px; color: #1b1035; font-weight: 700;
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet) 100%);
}
.nav .nav-cta:hover { color: #1b1035; background: linear-gradient(135deg, #ffb3d1 0%, #d3a5ff 100%); }
.menu-btn {
  display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--card-border); border-radius: 12px;
  background: var(--card); cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.menu-btn span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--text); transition: transform 0.2s, opacity 0.2s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 版面 ---------- */
main { max-width: 1120px; margin: 0 auto; padding: 0 20px 56px; }

.hero {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr); gap: 40px; align-items: center;
  padding: 72px 0 36px;
}
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: 0.08em; margin: 0 0 10px; font-size: 0.95rem; }
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.5rem); line-height: 1.18; margin: 0 0 18px; font-weight: 900; letter-spacing: 0.01em;
  text-shadow: 0 0 30px rgba(160, 170, 255, 0.25);
}
.grad {
  background: linear-gradient(120deg, #fff 0%, var(--accent) 45%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tagline { color: var(--muted); font-size: 1.08rem; margin: 0 0 28px; max-width: 620px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; min-height: 46px; padding: 11px 22px; border-radius: 999px;
  border: 1px solid var(--card-border-strong); background: var(--card); color: var(--text); font-weight: 700;
  transition: transform 0.15s var(--ease), border-color 0.15s, background-color 0.15s, box-shadow 0.15s;
}
.btn:hover { text-decoration: none; border-color: var(--accent); background: var(--card-hover); transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet) 100%);
  border: none; color: #1b1035; box-shadow: 0 8px 24px rgba(255, 158, 196, 0.25);
}
.btn-primary:hover { background: linear-gradient(135deg, #ffb3d1 0%, #d3a5ff 100%); box-shadow: 0 10px 28px rgba(255, 158, 196, 0.35); }
.btn-ghost { background: transparent; }

/* 首頁右側：即時統計卡 */
.hero-card {
  position: relative; padding: 22px 22px 18px; border-radius: 22px; border: 1px solid var(--card-border);
  background: linear-gradient(160deg, rgba(36, 42, 92, 0.92), rgba(20, 26, 61, 0.92));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: var(--shadow);
}
.hero-card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.hero-card-head h2 { margin: 0; font-size: 1.05rem; color: var(--muted); font-weight: 700; }
.hero-card-foot { margin: 12px 0 0; font-size: 0.82rem; color: var(--dim); }
.quick-stats { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.quick-stats li {
  display: grid; grid-template-columns: 40px auto 1fr; align-items: center; gap: 4px 12px;
  padding: 12px 14px; border-radius: 14px; background: rgba(11, 16, 38, 0.45); border: 1px solid var(--card-border);
}
.qs-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--card); font-size: 1.25rem; }
.quick-stats strong { font-size: 1.7rem; color: var(--accent-2); font-weight: 900; font-variant-numeric: tabular-nums; line-height: 1.2; }
.quick-stats span:last-child { color: var(--muted); }

/* 即時狀態標籤：文字＋圓點，不只靠顏色 */
.live {
  display: inline-flex; align-items: center; gap: 7px; padding: 3px 11px; border-radius: 999px; white-space: nowrap;
  font-size: 0.8rem; font-weight: 700; color: var(--muted); background: var(--card); border: 1px solid var(--card-border);
}
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--dim); }
.live.ok { color: var(--good); border-color: rgba(139, 227, 176, 0.35); }
.live.ok::before { background: var(--good); animation: pulse 2.4s ease-in-out infinite; }
.live.bad { color: var(--bad); border-color: rgba(255, 154, 143, 0.4); }
.live.bad::before { background: var(--bad); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* 數字載入中：骨架閃爍；載入失敗時保留舊值但淡化 */
strong.loading {
  color: transparent !important; min-width: 3.2em; display: inline-block; border-radius: 8px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.16) 50%, rgba(255, 255, 255, 0.06) 100%);
  background-size: 200% 100%; animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.stale strong { opacity: 0.45; }

/* ---------- 服務連結 ---------- */
#services { padding-top: 8px; }
.service-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.service {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: var(--radius-sm);
  background: var(--card); border: 1px solid var(--card-border); color: var(--text);
  transition: border-color 0.15s, background-color 0.15s, transform 0.15s var(--ease);
}
.service:hover { text-decoration: none; border-color: var(--accent); background: var(--card-hover); transform: translateY(-1px); }
.service-icon { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 12px; background: rgba(255, 158, 196, 0.12); font-size: 1.25rem; }
.service strong { display: block; }
.service small { display: block; color: var(--dim); font-size: 0.85rem; line-height: 1.4; }

/* ---------- 區塊 ---------- */
.section { padding: 64px 0 8px; }
.kicker { margin: 0 0 4px; color: var(--accent-2); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.18em; }
.kicker::before { content: "✦ "; color: var(--violet); }
.section h2 { font-size: 1.7rem; margin: 0 0 12px; font-weight: 900; line-height: 1.35; }
.section-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.section-head h2 { margin: 0; }
.lead { color: var(--muted); margin: 0 0 24px; max-width: 760px; }
.note { color: var(--muted); font-size: 0.95rem; }
.callout {
  margin: 18px 0 0; padding: 12px 16px; border-radius: var(--radius-sm); border: 1px dashed var(--card-border-strong);
  background: rgba(255, 216, 138, 0.06);
}

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.cards-3 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.cards-2 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 20px; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: transform 0.18s var(--ease), border-color 0.18s, background-color 0.18s, box-shadow 0.18s;
}
.card:hover { transform: translateY(-3px); border-color: var(--card-border-strong); background: var(--card-hover); box-shadow: var(--shadow); }
.card-icon {
  display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 12px; border-radius: 13px;
  background: linear-gradient(145deg, rgba(255, 158, 196, 0.18), rgba(197, 140, 255, 0.14));
  border: 1px solid var(--card-border); font-size: 1.3rem;
}
.card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }

/* ---------- 操作手冊 ---------- */
.guide-tools { display: flex; gap: 8px; }
.chip-btn {
  min-height: 36px; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--card-border-strong);
  background: var(--card); color: var(--muted); font: inherit; font-size: 0.88rem; font-weight: 700; cursor: pointer;
}
.chip-btn:hover { color: var(--text); border-color: var(--accent); }
.guide-list { display: grid; gap: 10px; }
.guide {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  transition: border-color 0.15s, background-color 0.15s;
}
.guide[open] { border-color: var(--card-border-strong); background: rgba(255, 255, 255, 0.07); }
.guide summary {
  display: flex; align-items: center; gap: 10px; cursor: pointer; padding: 16px 20px; font-weight: 700; font-size: 1.06rem;
  list-style: none; border-radius: var(--radius);
}
.guide summary:hover { color: #fff; }
.guide summary::-webkit-details-marker { display: none; }
.guide summary::after {
  content: ""; margin-left: auto; width: 10px; height: 10px; flex: none; border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent); transform: rotate(45deg) translate(-2px, -2px); transition: transform 0.2s var(--ease);
}
.guide[open] summary::after { transform: rotate(-135deg) translate(-2px, -2px); }
.guide-body { padding: 0 20px 16px; border-top: 1px solid var(--card-border); padding-top: 14px; }
.guide ul, .guide ol { margin: 0 0 12px; padding-left: 22px; color: var(--muted); }
.guide li { margin: 5px 0; }
.guide li::marker { color: var(--accent); }
.guide b { color: var(--text); }
.guide p { color: var(--muted); margin: 0 0 10px; }
.table-scroll { overflow-x: auto; margin: 8px 0 12px; border: 1px solid var(--card-border); border-radius: var(--radius-sm); }
.guide-table { width: 100%; border-collapse: collapse; font-size: 0.94rem; }
.guide-table th, .guide-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--card-border); white-space: nowrap; }
.guide-table td:last-child { white-space: normal; min-width: 140px; }
.guide-table th { color: var(--accent-2); font-weight: 700; background: rgba(255, 216, 138, 0.06); font-size: 0.86rem; }
.guide-table td { color: var(--muted); }
.guide-table tbody tr:last-child td { border-bottom: 0; }
.guide-table tbody tr:hover td { background: rgba(255, 255, 255, 0.04); color: var(--text); }

/* 手冊資料來源提示：即時（✓）或使用預設值（⚠），以文字與符號區分 */
.data-source {
  margin: -8px 0 18px; padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.88rem;
  color: var(--dim); background: var(--card); border: 1px solid var(--card-border); max-width: 760px;
}
.data-source.ok { color: var(--good); border-color: rgba(139, 227, 176, 0.3); }
.data-source.warn { color: var(--accent-2); border-color: rgba(255, 216, 138, 0.35); }
.tag {
  display: inline-block; padding: 1px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700;
  color: var(--dim); border: 1px solid var(--card-border);
}
.tag-on { color: var(--good); border-color: rgba(139, 227, 176, 0.4); background: rgba(139, 227, 176, 0.08); }
.quick-table td:first-child { color: var(--text); font-weight: 700; }
.music-guide { margin-top: 20px; }

/* ---------- 開始使用 ---------- */
.steps { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.steps li {
  position: relative; display: flex; gap: 14px; align-items: flex-start; padding: 18px; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--card-border);
}
.steps li > span {
  flex: none; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--violet) 100%); color: #1b1035; font-weight: 900;
}
.steps p { margin: 4px 0 0; color: var(--muted); font-size: 0.94rem; }
.commands { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.commands > div { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 20px; }
.commands h3 { margin: 0 0 8px; }
.commands ul { margin: 0; padding-left: 18px; color: var(--muted); }
.commands li { margin: 4px 0; }

/* ---------- 狀態 ---------- */
.status-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); gap: 12px; }
.status-card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: 14px; padding: 16px 18px;
}
.status-card span { display: block; color: var(--muted); font-size: 0.9rem; }
.status-card strong { font-size: 1.6rem; color: var(--accent-2); font-variant-numeric: tabular-nums; line-height: 1.4; }
.status-card strong.small-value { font-size: 1.05rem; color: var(--text); }
#status-note.error { color: var(--bad); }

/* ---------- 頁尾 ---------- */
.footer { margin-top: 40px; border-top: 1px solid var(--card-border); background: rgba(11, 16, 38, 0.5); }
.footer-inner {
  max-width: 1120px; margin: 0 auto; padding: 28px 20px; display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 12px 24px; color: var(--dim); font-size: 0.9rem;
}
.footer-inner p { margin: 0; width: 100%; }
.footer .brand { font-size: 1rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.footer-nav a { color: var(--muted); }

/* ---------- 響應式 ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-top: 48px; }
  .moon { width: 80px; height: 80px; top: 84px; right: 18px; }
}
@media (max-width: 820px) {
  .menu-btn { display: inline-flex; }
  .topbar { background: rgba(11, 16, 38, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
  .nav {
    position: absolute; left: 12px; right: 12px; top: calc(var(--header-h) - 4px); display: none;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 10px; border-radius: 16px;
    background: rgba(17, 22, 52, 0.97); border: 1px solid var(--card-border); box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 11px 14px; font-size: 1rem; }
  .nav a.active::after { display: none; }
  .nav .nav-cta { margin: 6px 0 0; text-align: center; }
}
@media (max-width: 600px) {
  main { padding: 0 16px 40px; }
  .topbar-inner { padding: 0 16px; }
  .section { padding-top: 48px; }
  .section h2 { font-size: 1.45rem; }
  .actions .btn { flex: 1 1 auto; justify-content: center; }
  .guide summary { padding: 14px 16px; font-size: 1rem; }
  .guide-body { padding: 12px 16px 14px; }
  .cards-2 { grid-template-columns: minmax(0, 1fr); }
  .status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 尊重「減少動態效果」偏好 */
@media (prefers-reduced-motion: reduce) {
  .nebula, .moon { will-change: auto; }
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}