:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --card-2:#f8fafc;
  --text:#10131a;
  --muted:#6b7280;
  --border:#e6e9ef;
  --accent:#356dff;
  --accent-soft:rgba(53,109,255,.10);
  --green:#22a06b;
  --orange:#e68a17;
  --red:#d74f4f;
  --shadow:0 14px 40px rgba(15,23,42,.07);
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bottom:env(safe-area-inset-bottom,0px);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Microsoft YaHei",Inter,system-ui,sans-serif;
}

html[data-theme="dark"]{
  --bg:#0b0f19;
  --card:#121824;
  --card-2:#0f1520;
  --text:#f4f7fb;
  --muted:#9aa4b2;
  --border:#252d3b;
  --accent:#5f89ff;
  --accent-soft:rgba(95,137,255,.12);
  --green:#51c58d;
  --orange:#ffb14d;
  --red:#ff7878;
  --shadow:0 16px 44px rgba(0,0,0,.24);
}

*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}
body{min-height:100dvh;overflow-x:hidden}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}

.app-shell{min-height:100dvh;background:var(--bg)}
.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:calc(14px + var(--safe-top)) clamp(18px,3vw,36px) 14px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid color-mix(in srgb,var(--border) 70%,transparent)}
.topbar h1{margin:2px 0 0;font-size:24px;letter-spacing:-.03em}
.eyebrow{margin:0;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.icon-btn{width:40px;height:40px;border-radius:13px;border:1px solid var(--border);background:var(--card);color:var(--text)}

.view-stack{position:relative}
.life-view{display:none;min-height:calc(100dvh - 80px);padding-bottom:calc(110px + var(--safe-bottom))}
.life-view.is-active{display:block}
.content-wrap{width:min(1160px,calc(100% - 32px));margin:0 auto;padding:24px 0 40px}
.card{background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow)}
.muted{color:var(--muted)}

.trip-hero{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:24px}
.trip-hero h2{font-size:34px;margin:6px 0 6px;letter-spacing:-.04em}
.trip-hero p{margin-bottom:0}
.status-pill{display:inline-flex;padding:7px 11px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.07em}

.section-block{margin-top:24px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
.section-head h2{margin:5px 0 0;font-size:22px;letter-spacing:-.03em}
.big3-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.big3-item{padding:16px;border:1px solid var(--border);background:var(--card);border-radius:18px;display:flex;gap:12px;align-items:flex-start}
.big3-index{width:28px;height:28px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-weight:800;flex:0 0 auto}
.big3-item h3{margin:1px 0 5px;font-size:16px}
.big3-item p{margin:0;font-size:13px;color:var(--muted)}

.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}
.stat-card{padding:17px;border:1px solid var(--border);border-radius:18px;background:var(--card)}
.stat-label{font-size:12px;color:var(--muted);font-weight:700}
.stat-value{font-size:22px;font-weight:850;margin-top:8px;letter-spacing:-.03em}

.timeline-card{padding:22px;margin-top:24px}
.secondary-btn{border:1px solid color-mix(in srgb,var(--accent) 32%,var(--border));background:var(--accent-soft);color:var(--accent);border-radius:13px;padding:10px 14px;font-weight:750}
.timeline{position:relative;margin-top:6px}
.timeline::before{content:"";position:absolute;left:91px;top:29px;bottom:29px;width:2px;background:var(--border);transform:translateX(-50%)}
.timeline-row{display:grid;grid-template-columns:76px 30px minmax(0,1fr);gap:0 0;position:relative;padding:9px 0}
.timeline-time{padding-top:13px;color:var(--accent);font-weight:800;font-size:13px;line-height:1.25}
.timeline-axis{display:flex;justify-content:center;padding-top:16px;position:relative;z-index:2}
.timeline-dot{width:13px;height:13px;border-radius:50%;background:var(--card);border:3px solid var(--accent);box-shadow:0 0 0 4px var(--card)}
.timeline-content{border:1px solid var(--border);border-radius:18px;padding:14px 15px;background:var(--card-2)}
.timeline-content h3{margin:0 0 4px;font-size:16px}
.timeline-content p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}
.timeline-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.meta-chip{padding:5px 8px;border-radius:999px;border:1px solid var(--border);background:var(--card);font-size:11px;color:var(--muted);font-weight:700}

.placeholder-card,.ai-card{padding:24px}
.placeholder-card h2,.ai-card h2{font-size:30px;margin:6px 0 10px;letter-spacing:-.04em}
.day-list,.booking-list{display:grid;gap:10px;margin-top:20px}
.day-row,.booking-row{padding:14px 15px;border:1px solid var(--border);border-radius:16px;background:var(--card-2);display:flex;align-items:center;justify-content:space-between;gap:14px}
.day-row strong,.booking-row strong{display:block}
.day-row span,.booking-row span{font-size:12px;color:var(--muted)}
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px}
.quick-chip{padding:13px;border-radius:15px;border:1px solid var(--border);background:var(--card-2);color:var(--text);text-align:left;font-weight:700}
.ai-input-shell{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:18px}
.ai-input-shell input{border:1px solid var(--border);background:var(--card-2);color:var(--text);border-radius:15px;padding:13px 14px}
.ai-input-shell button{border:0;border-radius:14px;padding:0 16px;background:var(--accent);color:white;font-weight:800}

.bottom-nav{position:fixed;left:50%;bottom:calc(14px + var(--safe-bottom));transform:translateX(-50%);z-index:100;width:min(620px,calc(100vw - 28px));display:grid;grid-template-columns:repeat(5,1fr);gap:4px;padding:6px;background:color-mix(in srgb,var(--card) 89%,transparent);border:1px solid color-mix(in srgb,var(--border) 80%,transparent);border-radius:20px;backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);box-shadow:0 16px 50px rgba(15,23,42,.14)}
.bottom-nav a{display:flex;flex-direction:column;gap:3px;align-items:center;justify-content:center;height:48px;border-radius:14px;text-decoration:none;color:var(--muted);font-size:17px;transition:background .16s ease,color .16s ease,transform .12s ease}
.bottom-nav a b{font-size:11px}
.bottom-nav a.is-active{background:var(--accent-soft);color:var(--accent)}
.bottom-nav a:active{transform:scale(.96)}

@media(max-width:720px){
  .topbar{padding-left:16px;padding-right:16px}
  .content-wrap{width:calc(100% - 20px);padding-top:14px}
  .trip-hero{padding:18px;border-radius:20px}
  .trip-hero h2{font-size:28px}
  .big3-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline-card{padding:15px;border-radius:20px}
  .timeline-head{align-items:flex-end}
  .timeline::before{left:68px}
  .timeline-row{grid-template-columns:54px 28px minmax(0,1fr)}
  .timeline-time{font-size:12px}
  .bottom-nav{left:8px;right:8px;bottom:calc(8px + var(--safe-bottom));width:auto;transform:none;border-radius:18px;padding:5px}
  .bottom-nav a{height:46px}
}

@media(max-width:390px){
  .section-head{align-items:flex-start;flex-direction:column}
  .timeline-head .secondary-btn{width:100%}
  .timeline::before{left:62px}
  .timeline-row{grid-template-columns:49px 26px minmax(0,1fr)}
  .quick-grid{grid-template-columns:1fr}
}