/* ChainLine Travel — design tokens ------------------------------------- */
:root{
  color-scheme: light;
  --black:#0a0a0a; --near-black:#141414; --white:#fafafa; --paper:#f4f3f0;
  --gray-100:#ececea; --gray-200:#d8d6d2; --gray-300:#8b8883; --gray-400:#5e5b58; --gray-500:#3a3835;
  --hairline: rgba(10,10,10,0.12);
  --display:"Space Grotesk","Helvetica Neue",Arial,sans-serif;
  --body:"Inter","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono","SF Mono",ui-monospace,monospace;
  --accent:#b3541e; --accent-soft: rgba(179,84,30,0.1); --accent-fg:#fff;
  --surface-page:var(--white); --surface-raised:var(--paper); --surface-sunken:var(--gray-100);
  --surface-inverse:var(--black); --text-primary:var(--black); --text-secondary:var(--gray-400);
  --text-on-inverse:var(--white); --border-subtle:var(--hairline);
  --budget-color:#16a34a; --mid-color:#b3541e; --luxury-color:#7c3aed;
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --black:#fafafa; --white:#0a0a0a; --paper:#141414;
  --gray-100:#1c1c1a; --gray-200:#2a2a27; --gray-300:#5e5b58; --gray-400:#9a9792; --gray-500:#cecac4;
  --hairline: rgba(255,255,255,0.12);
  --accent:#e0793a; --accent-soft: rgba(224,121,58,0.14); --accent-fg:#0a0a0a;
  --surface-page:var(--white); --surface-raised:var(--paper); --surface-sunken:var(--gray-100);
  --surface-inverse:var(--black); --text-primary:var(--black); --text-secondary:var(--gray-400);
  --text-on-inverse:var(--white); --border-subtle:var(--hairline);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --black:#fafafa; --white:#0a0a0a; --paper:#141414;
    --gray-100:#1c1c1a; --gray-200:#2a2a27; --gray-300:#5e5b58; --gray-400:#9a9792; --gray-500:#cecac4;
    --hairline: rgba(255,255,255,0.12);
    --accent:#e0793a; --accent-soft: rgba(224,121,58,0.14); --accent-fg:#0a0a0a;
  }
}

*,*::before,*::after{ box-sizing:border-box; }
*{ touch-action: manipulation; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--surface-page); color:var(--text-primary);
  font-family:var(--body); font-size:15px; line-height:1.5; overflow-x:hidden;
  transition: background .2s ease, color .2s ease;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
.container{ max-width:1180px; margin:0 auto; padding:0 24px; }
.italic{ font-style:italic; color:var(--text-secondary); }

/* ── buttons ─────────────────────────────────────────────────────────── */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 22px; border-radius:2px; font-family:var(--mono); font-size:11px;
  letter-spacing:.06em; text-transform:uppercase; font-weight:500; text-decoration:none;
  border:1px solid transparent; cursor:pointer; white-space:nowrap;
}
.btn-primary{ background:var(--black); color:var(--white); }
.btn-primary:hover{ background:var(--accent); }
.btn-outline{ background:transparent; color:var(--text-primary); border-color:var(--border-subtle); }
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); }
.btn-ghost{ background:transparent; color:var(--text-on-inverse); border-color:rgba(255,255,255,.3); }
.icon-btn{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--border-subtle);
  background:transparent; color:var(--text-primary); display:flex; align-items:center; justify-content:center;
  cursor:pointer; flex:0 0 auto;
}
.icon-btn:hover{ border-color:var(--accent); color:var(--accent); }
.i-moon{ display:none; }
[data-theme="dark"] .i-sun{ display:none; }
[data-theme="dark"] .i-moon{ display:block; }

/* ── topbar / header ─────────────────────────────────────────────────── */
.topbar{
  background:var(--black); color:var(--white); text-align:center; padding:7px 12px;
  font-family:var(--mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase;
}
.site-header{
  position:sticky; top:0; z-index:40; display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px 24px; background:color-mix(in oklab, var(--surface-page) 88%, transparent);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--border-subtle);
}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--text-primary); }
.brand-mark{
  width:30px; height:30px; border-radius:6px; background:var(--black); color:var(--white);
  display:flex; align-items:center; justify-content:center; font-family:var(--display); font-weight:700; font-size:13px;
}
.brand-word{ font-family:var(--display); font-weight:600; font-size:16px; }
.brand-word em{ font-style:normal; color:var(--accent); }
.site-nav{ display:flex; gap:26px; font-family:var(--mono); font-size:11px; letter-spacing:.05em; text-transform:uppercase; }
.site-nav a{ text-decoration:none; color:var(--text-secondary); }
.site-nav a:hover{ color:var(--text-primary); }
.header-actions{ display:flex; align-items:center; gap:10px; }
.header-actions .btn-ghost{ color:var(--text-primary); border-color:var(--border-subtle); }
@media (max-width:860px){ .site-nav{ display:none; } }

/* ── hero ────────────────────────────────────────────────────────────── */
.hero{ position:relative; padding:64px 24px 56px; overflow:hidden; }
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-scrim{ position:absolute; inset:0; background:linear-gradient(180deg, rgba(10,10,10,.45) 0%, rgba(10,10,10,.72) 45%, rgba(10,10,10,.92) 75%, var(--surface-page) 100%); }
.hero-inner{ position:relative; z-index:1; max-width:920px; margin:0 auto; color:var(--white); text-align:center; }
.eyebrow{ font-family:var(--mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:14px; }
.hero h1{ font-family:var(--display); font-size:clamp(30px,5.2vw,52px); line-height:1.08; font-weight:600; margin:0 0 18px; letter-spacing:-.01em; }
.hero h1 em{ font-style:normal; color:var(--gray-200); }
.hero-lede{ font-size:16px; color:rgba(255,255,255,.82); max-width:640px; margin:0 auto 34px; line-height:1.6; }

.search-widget{
  background:var(--surface-page); border-radius:6px; padding:16px; text-align:left;
  box-shadow:0 20px 60px rgba(0,0,0,.35); max-width:840px; margin:0 auto;
}
.sw-row{ display:flex; gap:10px; align-items:flex-end; flex-wrap:wrap; }
.sw-row + .sw-row{ margin-top:10px; }
.sw-field{ display:flex; flex-direction:column; gap:6px; flex:1 1 160px; min-width:140px; }
.sw-field span{ font-family:var(--mono); font-size:9px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-secondary); }
.sw-field input{
  border:1px solid var(--border-subtle); border-radius:3px; padding:11px 12px; font-family:var(--body);
  font-size:14px; background:var(--surface-raised); color:var(--text-primary);
}
.sw-field input:focus{ outline:2px solid var(--accent); outline-offset:1px; }
.sw-narrow{ flex:0 0 120px; }
.sw-swap{
  width:38px; height:44px; border:1px solid var(--border-subtle); background:var(--surface-raised); border-radius:3px;
  color:var(--text-primary); cursor:pointer; display:flex; align-items:center; justify-content:center; flex:0 0 auto;
}
.sw-swap:hover{ color:var(--accent); border-color:var(--accent); }
.stepper{ display:flex; align-items:center; justify-content:space-between; border:1px solid var(--border-subtle); border-radius:3px; background:var(--surface-raised); padding:4px 6px; height:42px; }
.stepper button{ width:26px; height:26px; border-radius:3px; border:none; background:transparent; color:var(--text-primary); font-size:16px; cursor:pointer; }
.stepper button:hover{ background:var(--accent-soft); color:var(--accent); }
.stepper span{ font-family:var(--mono); font-size:14px; min-width:16px; text-align:center; }
.sw-submit{ flex:0 0 auto; height:44px; }

.hero-providers{ margin-top:22px; display:flex; align-items:center; justify-content:center; gap:8px; flex-wrap:wrap; font-size:11px; color:rgba(255,255,255,.6); }
.provider-chip{
  font-family:var(--mono); font-size:10px; letter-spacing:.04em; text-transform:uppercase; padding:4px 9px;
  border:1px solid rgba(255,255,255,.25); border-radius:20px; color:rgba(255,255,255,.85);
}

/* ── sections / typography ──────────────────────────────────────────── */
.section{ padding:64px 0; }
.section-pad-sm{ padding:32px 0; }
.section-label{
  font-family:var(--mono); font-size:10px; letter-spacing:.1em; text-transform:uppercase; color:var(--text-secondary);
  margin-bottom:10px;
}
.display-l{ font-family:var(--display); font-size:clamp(26px,4vw,40px); line-height:1.12; font-weight:600; margin:0 0 16px; letter-spacing:-.01em; }
.display-m{ font-family:var(--display); font-size:clamp(22px,3vw,30px); line-height:1.16; font-weight:600; margin:0 0 12px; }
.section-lede{ color:var(--text-secondary); max-width:680px; line-height:1.65; margin:0 0 28px; }

.trip-meta{ background:var(--surface-raised); border-top:1px solid var(--border-subtle); border-bottom:1px solid var(--border-subtle); }
.stat-row{ display:flex; gap:36px; flex-wrap:wrap; margin:28px 0 30px; padding-top:20px; border-top:1px solid var(--border-subtle); }
.stat{ display:flex; flex-direction:column; gap:2px; }
.stat b{ font-family:var(--display); font-size:26px; }
.stat span{ font-family:var(--mono); font-size:10px; letter-spacing:.06em; text-transform:uppercase; color:var(--text-secondary); }

.tier-toggle{ display:inline-flex; border:1px solid var(--border-subtle); border-radius:30px; padding:3px; background:var(--surface-page); }
.tier-btn{
  border:none; background:transparent; padding:9px 20px; border-radius:24px; font-family:var(--mono);
  font-size:11px; letter-spacing:.05em; text-transform:uppercase; color:var(--text-secondary); cursor:pointer;
}
.tier-btn.is-active{ background:var(--black); color:var(--white); }

/* ── timeline ────────────────────────────────────────────────────────── */
.timeline-section{ padding-top:44px; }
.timeline{ position:relative; padding-left:26px; border-left:2px solid var(--border-subtle); display:flex; flex-direction:column; gap:34px; }
.tl-leg-head{ display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-bottom:10px; position:relative; }
.tl-leg-head::before{
  content:""; position:absolute; left:-32px; top:6px; width:10px; height:10px; border-radius:50%;
  background:var(--accent); border:3px solid var(--surface-page); box-shadow:0 0 0 1px var(--border-subtle);
}
.tl-leg-tag{ font-family:var(--mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); }
.tl-leg-head h3{ font-family:var(--display); font-size:19px; margin:0; font-weight:600; }
.tl-leg-date{ font-family:var(--mono); font-size:11px; color:var(--text-secondary); margin-left:auto; }
.tl-day{ background:var(--surface-raised); border:1px solid var(--border-subtle); border-radius:6px; padding:18px 20px; }
.tl-day-num{ font-family:var(--mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-secondary); margin-bottom:8px; }
.tl-day-body p{ margin:0 0 10px; line-height:1.65; font-size:14px; }
.tl-day-body p:last-child{ margin-bottom:0; }
.tl-day-body b{ color:var(--text-primary); }
.tl-day-body-media{ display:flex; gap:18px; align-items:flex-start; }
.tl-day-text{ flex:1; }
.tl-thumb{ width:130px; height:130px; object-fit:cover; border-radius:6px; flex:0 0 auto; }
@media (max-width:640px){ .tl-day-body-media{ flex-direction:column; } .tl-thumb{ width:100%; height:150px; } }

/* ── flight cards ────────────────────────────────────────────────────── */
.flight-cards{ display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:18px; }
.flight-card{ border:1px solid var(--border-subtle); border-radius:8px; padding:22px; background:var(--surface-page); display:flex; flex-direction:column; gap:14px; }
.fc-route{ display:flex; align-items:center; gap:10px; font-family:var(--display); font-size:17px; font-weight:600; }
.fc-route svg{ color:var(--text-secondary); flex:0 0 auto; }
.fc-meta{ display:flex; gap:14px; flex-wrap:wrap; font-family:var(--mono); font-size:11px; color:var(--text-secondary); text-transform:uppercase; letter-spacing:.03em; }
.fc-airlines{ font-size:13px; color:var(--text-secondary); line-height:1.5; }
.fc-price{ margin-top:auto; display:flex; align-items:baseline; justify-content:space-between; gap:10px; padding-top:12px; border-top:1px solid var(--border-subtle); }
.fc-price b{ font-family:var(--display); font-size:22px; }
.fc-price span{ font-family:var(--mono); font-size:10px; color:var(--text-secondary); text-transform:uppercase; }
.fc-links{ display:flex; gap:8px; flex-wrap:wrap; }
.fc-links a{ flex:1 1 auto; text-align:center; }

/* ── stays ───────────────────────────────────────────────────────────── */
.stay-city{ margin-bottom:40px; }
.stay-city:last-child{ margin-bottom:0; }
.stay-city h3{ font-family:var(--display); font-size:20px; font-weight:600; display:flex; align-items:baseline; gap:10px; margin:0 0 16px; }
.stay-nights{ font-family:var(--mono); font-size:11px; color:var(--text-secondary); text-transform:uppercase; font-weight:400; }
.stay-cards{ display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:18px; }
.stay-card{ border:1px solid var(--border-subtle); border-radius:8px; overflow:hidden; background:var(--surface-page); display:flex; flex-direction:column; transition:opacity .2s ease, transform .2s ease; }
.stay-card.is-hidden{ display:none; }
.stay-card-img{ aspect-ratio:4/3; background:var(--surface-sunken); position:relative; overflow:hidden; }
.stay-card-img img{ width:100%; height:100%; object-fit:cover; }
.stay-tier-pill{
  position:absolute; top:10px; left:10px; font-family:var(--mono); font-size:9px; letter-spacing:.08em; text-transform:uppercase;
  padding:4px 9px; border-radius:20px; color:#fff; font-weight:600;
}
.stay-tier-pill.budget{ background:var(--budget-color); }
.stay-tier-pill.mid{ background:var(--mid-color); }
.stay-tier-pill.luxury{ background:var(--luxury-color); }
.stay-card-body{ padding:16px; display:flex; flex-direction:column; gap:8px; flex:1; }
.stay-card-body h4{ font-family:var(--display); font-size:15px; font-weight:600; margin:0; }
.stay-card-body p{ margin:0; font-size:13px; color:var(--text-secondary); line-height:1.5; }
.stay-price{ display:flex; align-items:baseline; justify-content:space-between; margin-top:auto; padding-top:10px; }
.stay-price b{ font-family:var(--display); font-size:18px; }
.stay-price span{ font-family:var(--mono); font-size:10px; color:var(--text-secondary); text-transform:uppercase; }
.stay-card .btn{ width:100%; margin-top:2px; }

/* ── explore rome ────────────────────────────────────────────────────── */
.museum-feature{ display:grid; grid-template-columns:1fr 1fr; gap:0; border:1px solid var(--border-subtle); border-radius:8px; overflow:hidden; margin-bottom:44px; }
.museum-feature img{ width:100%; height:100%; object-fit:cover; min-height:260px; }
.museum-copy{ padding:28px 30px; display:flex; flex-direction:column; gap:10px; justify-content:center; }
.museum-copy h3{ font-family:var(--display); font-size:24px; font-weight:600; margin:0; }
.museum-copy p{ margin:0; font-size:14px; line-height:1.65; color:var(--text-secondary); }
.museum-alt{ padding:12px 14px; background:var(--surface-raised); border-radius:6px; border:1px solid var(--border-subtle); }
.museum-copy .btn{ align-self:flex-start; margin-top:6px; }
@media (max-width:760px){ .museum-feature{ grid-template-columns:1fr; } .museum-feature img{ min-height:200px; } }

.restaurants-head{ font-family:var(--display); font-size:18px; font-weight:600; margin:0 0 16px; }
.restaurant-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:14px; }
.restaurant-card{ border:1px solid var(--border-subtle); border-radius:8px; padding:18px; background:var(--surface-page); }
.restaurant-card h4{ font-family:var(--display); font-size:15px; font-weight:600; margin:0 0 4px; }
.restaurant-card .rc-hood{ font-family:var(--mono); font-size:10px; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); margin-bottom:8px; display:block; }
.restaurant-card p{ margin:0; font-size:13px; color:var(--text-secondary); line-height:1.55; }

/* ── price summary ──────────────────────────────────────────────────── */
.summary-section{ padding-top:20px; }
.summary-card{ background:var(--surface-inverse); color:var(--text-on-inverse); border-radius:10px; padding:32px 30px; }
.summary-head h3{ font-family:var(--display); font-size:22px; font-weight:600; margin:0 0 4px; }
.summary-head p{ margin:0 0 20px; color:rgba(250,250,250,.6); font-size:13px; }
.summary-lines{ display:flex; flex-direction:column; gap:8px; padding:16px 0; border-top:1px solid rgba(255,255,255,.15); border-bottom:1px solid rgba(255,255,255,.15); margin-bottom:16px; }
.summary-line{ display:flex; justify-content:space-between; font-size:13px; color:rgba(250,250,250,.82); }
.summary-line b{ color:#fff; font-weight:500; }
.summary-total{ display:flex; align-items:baseline; justify-content:space-between; }
.summary-total span{ font-family:var(--mono); font-size:12px; text-transform:uppercase; letter-spacing:.05em; color:rgba(250,250,250,.7); }
.summary-total b{ font-family:var(--display); font-size:30px; }
.summary-note{ margin:18px 0 0; font-size:11px; color:rgba(250,250,250,.45); line-height:1.5; }

/* ── footer ──────────────────────────────────────────────────────────── */
.site-footer{ border-top:1px solid var(--border-subtle); padding:48px 0; background:var(--surface-raised); }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr; gap:40px; }
.footer-brand{ margin-bottom:12px; }
.site-footer p{ font-size:13px; color:var(--text-secondary); line-height:1.6; max-width:440px; }
.footer-label{ font-family:var(--mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--text-secondary); margin-bottom:10px; }
.credits-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:5px; font-size:12px; color:var(--text-secondary); }
.site-footer a{ text-decoration:none; }
.site-footer a:hover{ color:var(--accent); }
@media (max-width:700px){ .footer-grid{ grid-template-columns:1fr; } }

/* ── mobile ──────────────────────────────────────────────────────────── */
@media (max-width:640px){
  .container{ padding:0 16px; }
  .site-header{ padding:12px 16px; }
  .header-actions .btn-ghost{ display:none; }
  .brand-word{ font-size:14px; }
  .brand-mark{ width:26px; height:26px; font-size:11px; }
  .hero{ padding:44px 16px 40px; }
  .sw-row{ flex-direction:column; align-items:stretch; }
  .sw-narrow{ flex:1 1 auto; }
  .sw-swap{ align-self:center; transform:rotate(90deg); }
  .sw-submit{ width:100%; }
  .stat-row{ gap:22px; }
  .museum-feature{ border-radius:6px; }
  .fc-links{ flex-direction:column; }
  .fc-links a{ width:100%; }
}