/* ===================================================================
   溫哥華自駕之旅 — Professional Dark Theme
   固定深色主題（已移除深/淺色切換）
   =================================================================== */
:root{
  /* dark (default) */
  --bg:#0a0d12;
  --bg-2:#0c1016;
  --surface:#12171f;
  --surface-2:#171d27;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --text:#e8eef4;
  --text-dim:#aeb9c5;
  --muted:#7d8893;
  --gold:#d8b069;
  --gold-soft:rgba(216,176,105,.12);
  --teal:#62b3cc;     /* 市區 city */
  --green:#65b393;    /* 出城 out  */
  --amber:#d9a441;    /* 彈性 flex */
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --shadow-sm:0 6px 18px rgba(0,0,0,.35);
  --radius:16px;
  --radius-sm:11px;
  --maxw:1080px;
  --font-sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif TC","Songti TC",Georgia,"Times New Roman",serif;
}
/* 已取消深/淺色切換，深色為唯一主題 */

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{
  font-family:var(--font-sans);color:var(--text);background:var(--bg);
  line-height:1.78;-webkit-font-smoothing:antialiased;
  transition:background .4s,color .4s;
}
a{color:inherit;text-decoration:none}
b{font-weight:700;color:var(--text)}
::selection{background:var(--gold);color:#0a0d12}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 78%,transparent);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 22px;height:66px;
  display:flex;align-items:center;gap:18px}
.brand{font-family:var(--font-serif);font-weight:900;font-size:1.16rem;color:var(--text);
  letter-spacing:.02em;white-space:nowrap}
.brand span{font-size:.98rem}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{padding:8px 15px;border-radius:999px;font-weight:500;color:var(--text-dim);
  font-size:.93rem;transition:.2s}
.nav-links a:hover{color:var(--gold)}
.nav-cta{border:1px solid var(--border-strong);color:var(--text)!important}
.nav-cta:hover{border-color:var(--gold);color:var(--gold)!important}
.nav-actions{display:flex;align-items:center;gap:8px}
.nav-toggle{background:transparent;border:1px solid var(--border);
  color:var(--text-dim);width:40px;height:40px;border-radius:10px;cursor:pointer;
  font-size:1.15rem;display:none;place-items:center;transition:.2s}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}

/* ===== HERO (always a dark stage) ===== */
.hero{position:relative;min-height:92vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;color:#eef2f7;
  overflow:hidden;padding:90px 22px 120px}
.hero-bg{position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(900px 420px at 50% 86%, rgba(216,176,105,.16), transparent 62%),
    radial-gradient(1000px 520px at 82% 4%, rgba(98,179,204,.08), transparent 60%),
    linear-gradient(180deg,#080a0f 0%,#0b1119 42%,#10202a 76%,#163139 100%);}
.hero-bg::after{content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(1.2px 1.2px at 15% 22%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 28% 13%, rgba(255,255,255,.35), transparent),
    radial-gradient(1.3px 1.3px at 43% 27%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 62% 11%, rgba(255,255,255,.45), transparent),
    radial-gradient(1.2px 1.2px at 78% 23%, rgba(255,255,255,.35), transparent),
    radial-gradient(1px 1px at 88% 15%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 52% 7%, rgba(255,255,255,.3), transparent);
  background-repeat:no-repeat;
  mask-image:linear-gradient(180deg,#000 0%,#000 32%,transparent 58%)}
.hero-mountains{position:absolute;left:0;bottom:-1px;width:100%;height:auto;z-index:0;display:block}
/* optional cover photo: drop images/cover.jpg in the repo and it auto-replaces the illustration */
.hero-photo{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.hero-photo::after{content:"";position:absolute;inset:0;
  background:
    radial-gradient(1050px 540px at 50% 40%, rgba(6,9,13,.52), transparent 70%),
    linear-gradient(180deg, rgba(6,9,13,.5) 0%, rgba(6,9,13,.4) 40%, rgba(6,9,13,.72) 100%);}
.hero-content{position:relative;z-index:1;max-width:840px}
.hero-kicker{font-family:var(--font-sans);letter-spacing:.34em;font-size:.76rem;font-weight:700;
  color:#f1c87e;margin-bottom:22px;text-shadow:0 1px 10px rgba(0,0,0,.6)}
.hero h1{font-family:var(--font-serif);font-size:clamp(2.5rem,7.2vw,4.7rem);font-weight:900;
  line-height:1.08;letter-spacing:.01em;text-shadow:0 2px 5px rgba(0,0,0,.5),0 12px 36px rgba(0,0,0,.42)}
.hero-dates{margin-top:20px;font-size:clamp(1rem,2.4vw,1.2rem);font-weight:600;color:#f3f6f9;
  letter-spacing:.04em;text-shadow:0 1px 9px rgba(0,0,0,.62)}
.hero-sub{margin-top:16px;font-size:1.05rem;color:#e8eef4;text-shadow:0 1px 9px rgba(0,0,0,.66)}
.hero-sub b{color:#fff;font-weight:700}
.nw{white-space:nowrap}
.hero-btns{margin-top:36px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 30px;border-radius:999px;font-weight:700;font-size:.97rem;
  transition:.22s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--gold);color:#0a0d12}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(216,176,105,.32)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#eef2f7}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.hero-stats{margin:52px auto 0;display:flex;gap:0;flex-wrap:wrap;width:fit-content;max-width:100%;
  border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;backdrop-filter:blur(4px)}
.hero-stats div{padding:16px 26px;min-width:104px;border-right:1px solid rgba(255,255,255,.1);
  background:rgba(10,13,18,.36)}
.hero-stats div:last-child{border-right:none}
.hero-stats b{display:block;font-family:var(--font-serif);font-size:1.5rem;font-weight:700;color:#fff}
.hero-stats span{font-size:.78rem;color:#d0d9e2;letter-spacing:.04em}
.hero-scroll{position:absolute;bottom:26px;z-index:1;font-size:1.4rem;color:#cfd8e2;opacity:.6;
  animation:bob 1.9s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ===== SECTIONS ===== */
.section{padding:96px 22px;position:relative}
.section.alt{background:var(--bg-2)}
.container{max-width:var(--maxw);margin:0 auto}
.container.narrow{max-width:720px}
.sec-title{font-family:var(--font-serif);font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;
  color:var(--text);text-align:center;line-height:1.2}
.sec-title::before{content:attr(data-eyebrow);display:block;font-family:var(--font-sans);
  font-size:.72rem;letter-spacing:.34em;font-weight:700;color:var(--gold);
  margin-bottom:16px;text-transform:uppercase}
.sec-lead{text-align:center;color:var(--text-dim);max-width:760px;margin:18px auto 48px;font-size:1.02rem}

/* ===== OVERVIEW TIMELINE ===== */
.timeline-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(186px,1fr));gap:14px}
.day-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:18px;transition:.25s;position:relative;overflow:hidden}
.day-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--border-strong)}
.day-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-sm)}
.day-card.city::before{background:var(--teal)}
.day-card.out::before{background:var(--green)}
.day-card.flex::before{background:var(--amber)}
.d-date{font-family:var(--font-serif);font-weight:700;color:var(--text);font-size:1.08rem}
.d-tag{display:inline-block;margin:9px 0;padding:3px 11px;border-radius:999px;font-size:.74rem;
  font-weight:700;border:1px solid var(--border);letter-spacing:.02em}
.tag-city{color:var(--teal)}
.tag-out{color:var(--green)}
.tag-flex{color:var(--amber)}
.tag-rest{color:var(--muted)}
.day-card p{font-size:.9rem;color:var(--text-dim);margin:0}

.notes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:16px;margin-top:44px}
.note-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;transition:.25s}
.note-card:hover{border-color:var(--border-strong)}
.note-ic{font-size:1.7rem;opacity:.95}
.note-card h4{font-family:var(--font-serif);margin:12px 0 8px;font-size:1.12rem;color:var(--text);font-weight:700}
.note-card p{font-size:.92rem;color:var(--text-dim)}

/* ===== TRIP DAYS ===== */
.trip-day{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 30px;margin-bottom:20px;transition:.25s}
.trip-day:hover{border-color:var(--border-strong)}
.trip-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px;
  padding-bottom:18px;border-bottom:1px solid var(--border)}
.trip-num{font-family:var(--font-serif);background:var(--surface-2);border:1px solid var(--border-strong);
  color:var(--teal);font-weight:700;padding:6px 15px;border-radius:9px;font-size:.92rem}
.trip-num.out{color:var(--green)}
.trip-head h3{flex:1;font-family:var(--font-serif);font-size:1.26rem;color:var(--text);min-width:200px;font-weight:700}
.trip-date{color:var(--muted);font-weight:500;font-size:.92rem;letter-spacing:.03em}
.tl{list-style:none}
.tl li{display:flex;gap:18px;padding:13px 0;border-bottom:1px solid var(--border)}
.tl li:last-child{border-bottom:none}
.tl .t{flex-shrink:0;width:52px;font-weight:700;color:var(--gold);font-size:.86rem;
  padding-top:3px;text-align:right;letter-spacing:.04em}
.tl li div{flex:1;font-size:.96rem;color:var(--text-dim)}
.tl li div b{color:var(--text)}
.maplink{font-weight:700;color:var(--text);border-bottom:1px dashed rgba(216,176,105,.55);
  transition:.18s;cursor:pointer}
.maplink:hover{color:var(--gold);border-bottom-color:var(--gold)}

.addon{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 30px;margin-top:8px}
.addon h4{font-family:var(--font-serif);color:var(--text);margin-bottom:16px;font-weight:700;font-size:1.1rem}
.chip-row{display:flex;gap:10px;flex-wrap:wrap}
.chip{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:8px 16px;
  font-size:.88rem;font-weight:500;color:var(--text-dim);transition:.2s}
.chip:hover{border-color:var(--gold);color:var(--text)}

/* ===== TABS ===== */
.tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.tab{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:12px 26px;
  font-weight:700;cursor:pointer;font-size:.98rem;color:var(--text-dim);transition:.22s;font-family:inherit}
.tab:hover{border-color:var(--border-strong);color:var(--text)}
.tab.active{background:var(--gold);border-color:var(--gold);color:#0a0d12}
.tab-panel{display:none;animation:fade .4s}
.tab-panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ===== COMPARE ===== */
.compare{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 30px;margin-top:14px}
.compare h4{font-family:var(--font-serif);color:var(--text);margin-bottom:18px;font-size:1.16rem;font-weight:700}
.compare table{width:100%;border-collapse:collapse;font-size:.94rem}
.compare th,.compare td{padding:12px 13px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
.compare thead th{background:var(--surface-2);color:var(--gold);font-weight:700;letter-spacing:.02em}
.compare tbody tr:last-child td{border-bottom:none}
.compare td{color:var(--text-dim)}
.compare td:first-child{font-weight:700;color:var(--text);white-space:nowrap}
.reco{margin-top:18px;background:var(--gold-soft);border:1px solid var(--border);
  border-radius:11px;padding:13px 17px;font-size:.96rem;color:var(--text-dim)}
.reco b{color:var(--gold)}

/* ===== INFO ===== */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(252px,1fr));gap:16px}
.info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;transition:.25s}
.info-card:hover{border-color:var(--border-strong)}
.info-card h4{font-family:var(--font-serif);color:var(--text);margin-bottom:15px;font-size:1.12rem;font-weight:700}
.info-card ul{list-style:none}
.info-card li{padding:6px 0 6px 22px;position:relative;font-size:.92rem;color:var(--text-dim)}
.info-card li::before{content:"";position:absolute;left:4px;top:14px;width:6px;height:6px;
  border-radius:50%;background:var(--gold)}
.info-card li b{color:var(--text)}
.callout{margin-top:28px;background:var(--gold-soft);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px 26px;font-size:.97rem;color:var(--text-dim)}
.callout b{color:var(--gold)}

/* ===== CHECKLIST ===== */
.checklist{list-style:none;margin-top:10px}
.checklist li{background:var(--surface);border:1px solid var(--border);border-radius:11px;
  margin-bottom:10px;transition:.2s}
.checklist li:hover{border-color:var(--border-strong)}
.checklist label{display:flex;align-items:center;gap:14px;padding:15px 18px;cursor:pointer;
  font-weight:500;font-size:.98rem;color:var(--text)}
.checklist input{width:21px;height:21px;accent-color:var(--gold);cursor:pointer;flex-shrink:0}
.checklist li:has(input:checked){border-color:var(--gold);background:var(--gold-soft)}
.checklist li:has(input:checked) label{color:var(--muted);text-decoration:line-through}
.progress-wrap{height:10px;background:var(--surface-2);border:1px solid var(--border);
  border-radius:999px;margin-top:22px;overflow:hidden}
.progress{height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--gold),var(--teal));transition:width .45s}
.progress-label{text-align:center;margin-top:11px;font-weight:700;color:var(--gold);
  letter-spacing:.02em;font-size:.95rem}

/* ===== FOOTER ===== */
.footer{background:var(--bg-2);border-top:1px solid var(--border);color:var(--text-dim);
  text-align:center;padding:46px 22px}
.footer p{font-size:.98rem}
.foot-note{font-size:.8rem;color:var(--muted);margin-top:8px}

/* ===== REVEAL ANIM ===== */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}
.reveal.show{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.hero-scroll{animation:none}}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-toggle{display:grid}
  .nav-links{position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--bg-2);border-bottom:1px solid var(--border);padding:10px;gap:4px;margin-left:0;
    max-height:0;overflow:hidden;transition:max-height .3s;box-shadow:var(--shadow)}
  .nav-links.open{max-height:380px}
  .nav-links a{padding:12px 16px}
  .nav-actions{margin-left:auto}
  .section{padding:64px 18px}
  .tl .t{width:44px;font-size:.8rem}
  .hero h1{font-size:min(8vw,2.5rem)}
  .hero-stats{width:100%;flex-wrap:nowrap}
  .hero-stats div{flex:1;min-width:0;padding:11px 5px}
  .hero-stats b{font-size:clamp(.95rem,4.4vw,1.2rem)}
  .hero-stats span{font-size:clamp(.58rem,2.7vw,.74rem)}
  .trip-day{padding:24px 20px}
}