/* Vietnam '26 — design system per ui-ux-pro-max: adventure orange + map teal, Be Vietnam Pro */
:root {
  --color-primary: #EA580C;
  --color-primary-deep: #C2410C;   /* 4.5:1-safe on light bg for small text */
  --color-on-primary: #FFFFFF;
  --color-secondary: #0891B2;
  --color-secondary-deep: #0E7490;
  --color-accent: #D97706;
  --color-background: #FFF7ED;
  --color-surface: #FFFFFF;
  --color-foreground: #0F172A;
  --color-muted-text: #57534E;
  --color-muted: #FDF4F0;
  --color-border: #FCEAE1;
  --color-ring: #EA580C;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15,23,42,.05), 0 8px 24px -12px rgba(194,65,12,.25);
  --space-1: 8px; --space-2: 16px; --space-3: 24px; --space-4: 40px; --space-5: 64px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  font-family: 'Be Vietnam Pro', 'Noto Sans', system-ui, sans-serif;
  font-size: 16px; line-height: 1.5;
  background: var(--color-background);
  color: var(--color-foreground);
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 var(--space-3); }
.section { padding: var(--space-5) 0; }
h1, h2 { line-height: 1.15; letter-spacing: -.02em; }
h2 { font-size: clamp(26px, 3.5vw, 36px); font-weight: 800; margin: 0 0 var(--space-2); }
.lede { color: var(--color-muted-text); max-width: 62ch; margin: 0 0 var(--space-3); }
a { color: var(--color-secondary-deep); }
.ic { width: 20px; height: 20px; flex: none; }

:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 2px; border-radius: 4px; }

/* ---------- nav ---------- */
.topnav {
  position: sticky; top: 0; z-index: 1100;
  background: rgba(255,247,237,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: .06em; color: var(--color-primary-deep); text-decoration: none; font-size: 17px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 2px; }
.nav-links a {
  color: var(--color-foreground); text-decoration: none; font-weight: 500; font-size: 14px;
  padding: 8px 12px; border-radius: 999px; transition: background .2s, color .2s;
}
.nav-links a:hover { background: var(--color-muted); color: var(--color-primary-deep); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: #431407; color: #fff; }
.hero-art { position: absolute; inset: 0; }
.hero-art svg { width: 100%; height: 100%; }
.hero-inner { position: relative; padding-top: 88px; padding-bottom: 96px; max-width: 1080px; }
.kicker { text-transform: uppercase; letter-spacing: .14em; font-size: 13px; font-weight: 600; color: #fed7aa; margin: 0 0 var(--space-2); }
.hero h1 { font-size: clamp(34px, 6vw, 62px); font-weight: 800; margin: 0 0 var(--space-2); text-shadow: 0 2px 18px rgba(0,0,0,.35); }
.hero .accent { color: #fbbf24; }
.hero .sub { max-width: 56ch; font-size: 18px; color: #ffedd5; text-shadow: 0 1px 12px rgba(0,0,0,.45); margin: 0 0 var(--space-3); }
.stat-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.stat {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(4px); border-radius: var(--radius); padding: 10px 18px; text-align: center;
}
.stat strong { display: block; font-size: 20px; }
.stat span { font-size: 12.5px; color: #ffedd5; }

/* ---------- snapshot cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-2); }
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: var(--space-2) var(--space-3);
  box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-2px); }
.card h3 { display: flex; align-items: center; gap: 8px; margin: 0 0 6px; font-size: 15px; color: var(--color-primary-deep); }
.card p { margin: 0; font-size: 14px; color: var(--color-muted-text); }
.callout {
  display: flex; gap: 12px; margin-top: var(--space-3);
  background: #ECFEFF; border: 1px solid #A5F3FC; border-radius: var(--radius);
  padding: var(--space-2) var(--space-3); color: #164E63; font-size: 14.5px;
}
.callout .ic { color: var(--color-secondary-deep); margin-top: 2px; }

.badge { display: inline-block; padding: 1px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-adv { background: #FFEDD5; color: #9A3412; border: 1px solid #FED7AA; }
.badge-gen { background: #CFFAFE; color: #155E75; border: 1px solid #A5F3FC; }
.badge-whole { background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.badge-flex { background: #FEF9C3; color: #854D0E; border: 1px solid #FDE68A; }

/* ---------- chips ---------- */
.chip {
  font: inherit; font-size: 14px; font-weight: 500; cursor: pointer;
  border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-foreground);
  border-radius: 999px; padding: 8px 16px; min-height: 40px;
  transition: background .18s, color .18s, border-color .18s;
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary-deep); }
.chip.is-on { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); }

/* ---------- map ---------- */
.map-section { padding-bottom: 0; }
.map-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--space-2); }
#leafletMap { height: min(72vh, 620px); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); z-index: 10; }
.map-note { font-size: 13px; color: var(--color-muted-text); padding-top: 10px; padding-bottom: var(--space-4); }
.leaflet-popup-content { font-family: 'Be Vietnam Pro', system-ui, sans-serif; font-size: 13.5px; line-height: 1.45; }
.leaflet-popup-content h4 { margin: 0 0 4px; font-size: 15px; color: var(--color-primary-deep); }
.leaflet-popup-content .plinks { margin-top: 8px; display: flex; gap: 10px; flex-wrap: wrap; }
.leaflet-popup-content .plinks a { font-weight: 600; }
.pin { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50% 50% 50% 4px; transform: rotate(-45deg); border: 2px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.35); }
.pin svg { transform: rotate(45deg); width: 15px; height: 15px; color: #fff; }
.pin-1 { background: var(--color-primary); }
.pin-2 { background: var(--color-secondary); }

/* ---------- timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ''; position: absolute; left: 22px; top: 8px; bottom: 8px; width: 3px; background: linear-gradient(var(--color-primary), var(--color-secondary)); border-radius: 2px; }
.tl-item { position: relative; padding: 0 0 var(--space-2) 64px; }
.day-dot {
  position: absolute; left: 4px; top: 4px; width: 39px; height: 39px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; font-size: 15px; color: #fff;
  background: var(--color-primary); border: 3px solid var(--color-background); z-index: 2;
}
.tl-item.base2 .day-dot { background: var(--color-secondary); }
.day-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.day-head {
  width: 100%; text-align: left; font: inherit; cursor: pointer; border: 0; background: none;
  display: flex; align-items: center; gap: 10px; padding: 14px 18px; min-height: 44px;
}
.day-head:hover { background: var(--color-muted); }
.day-head h3 { margin: 0; font-size: 16.5px; flex: 1; }
.day-head .chev { transition: transform .2s; color: var(--color-muted-text); }
.tl-item.open .chev { transform: rotate(180deg); }
.day-body { display: none; padding: 4px 18px 16px; border-top: 1px dashed var(--color-border); }
.tl-item.open .day-body { display: block; }
.day-body p { margin: 10px 0; font-size: 14.5px; }
.tracks { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2); margin: 10px 0; }
.track { border-radius: 10px; padding: 10px 14px; font-size: 14px; }
.track-adv { background: #FFF1E5; border: 1px solid #FED7AA; }
.track-gen { background: #ECFEFF; border: 1px solid #A5F3FC; }
.track strong { display: block; margin-bottom: 4px; font-size: 13px; }
.day-actions { margin-top: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  font: inherit; font-size: 14px; font-weight: 600; text-decoration: none;
  background: var(--color-secondary); color: #fff; border: 0; border-radius: 999px;
  padding: 9px 18px; min-height: 40px; transition: background .18s;
}
.btn:hover { background: var(--color-secondary-deep); }

/* ---------- activities ---------- */
.act-filters { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-bottom: var(--space-3); }
.act-filters > div { display: flex; flex-wrap: wrap; gap: 8px; }
.act-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-2); }
.act-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 14px 18px; box-shadow: var(--shadow); }
.act-card h3 { margin: 0 0 4px; font-size: 15.5px; }
.act-card .meta { font-size: 13px; color: var(--color-muted-text); margin: 0 0 6px; }
.act-card .cost { font-weight: 700; color: var(--color-primary-deep); font-size: 14px; }
.act-card .note { font-size: 13px; color: var(--color-muted-text); margin: 6px 0 0; }
.act-card .badge { margin-top: 8px; }

/* ---------- budget ---------- */
.budget-section { background: #431407; color: #FFF7ED; }
.budget-section h2 { color: #fff; }
.budget-section .lede { color: #fed7aa; }
.budget-toggle { display: flex; gap: 8px; margin-bottom: var(--space-3); }
.budget-section .chip { background: transparent; color: #ffedd5; border-color: #7c2d12; }
.budget-section .chip.is-on { background: var(--color-accent); border-color: var(--color-accent); color: #431407; font-weight: 700; }
.budget-tables { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); align-items: start; }
.btable { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius); overflow: hidden; color: var(--color-foreground); box-shadow: var(--shadow); }
.btable th { text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; background: var(--color-muted); color: var(--color-primary-deep); padding: 10px 14px; }
.btable td { padding: 9px 14px; border-top: 1px solid var(--color-border); font-size: 14px; }
.btable .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.btable .sub { font-size: 12.5px; color: var(--color-muted-text); display: block; }
.btable label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.btable input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--color-primary); margin-top: 1px; cursor: pointer; }
.budget-total {
  margin-top: var(--space-3); background: var(--color-accent); color: #431407;
  border-radius: var(--radius); padding: var(--space-2) var(--space-3);
  display: flex; flex-wrap: wrap; gap: 8px 32px; align-items: baseline; justify-content: space-between;
}
.budget-total strong { font-size: clamp(20px, 3vw, 28px); font-variant-numeric: tabular-nums; }
.budget-total span { font-weight: 600; }

/* ---------- food ---------- */
.food-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-2); }
.food-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 12px 16px; }
.food-card .cost { font-weight: 800; color: var(--color-primary-deep); font-size: 17px; }
.food-card h3 { margin: 2px 0 4px; font-size: 14.5px; }
.food-card p { margin: 0; font-size: 13px; color: var(--color-muted-text); }

/* ---------- checklist ---------- */
.check-section { background: var(--color-muted); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.progress-wrap { height: 14px; background: #FCE7DB; border-radius: 999px; overflow: hidden; max-width: 560px; }
.progress { height: 100%; width: 0; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); border-radius: 999px; transition: width .35s ease; }
.progress-label { font-size: 14px; font-weight: 600; color: var(--color-primary-deep); margin: 8px 0 var(--space-3); }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 10px; }
.checklist li { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 10px; }
.checklist label { display: flex; gap: 12px; padding: 12px 14px; cursor: pointer; align-items: flex-start; min-height: 44px; }
.checklist input { width: 20px; height: 20px; accent-color: var(--color-primary); margin-top: 1px; flex: none; cursor: pointer; }
.checklist .when { display: block; font-size: 12.5px; color: var(--color-muted-text); }
.checklist li.done { opacity: .62; }
.checklist li.done .txt { text-decoration: line-through; }

/* ---------- rooms / tables ---------- */
.table-scroll { overflow-x: auto; }
.rooms td:first-child { font-weight: 700; white-space: nowrap; }

/* ---------- footer ---------- */
.footer { background: #431407; color: #ffedd5; padding: var(--space-4) 0; }
.footer .fine { font-size: 13px; color: #fdba74; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .budget-tables { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .nav-links a { padding: 8px 9px; font-size: 13px; }
  .tracks { grid-template-columns: 1fr; }
  .hero-inner { padding-top: 56px; padding-bottom: 72px; }
}

/* ---------- explore modal ---------- */
#placeModal {
  border: 0; padding: 0; margin: auto;
  width: min(680px, calc(100vw - 32px));
  max-height: min(86vh, 900px);
  border-radius: var(--radius); overflow: hidden auto;
  background: var(--color-surface); color: var(--color-foreground);
  box-shadow: 0 24px 80px -12px rgba(15,23,42,.45);
}
#placeModal::backdrop { background: rgba(15,23,42,.55); backdrop-filter: blur(3px); }
.pm-media { position: relative; background: linear-gradient(135deg, var(--color-primary), var(--color-secondary)); min-height: 90px; }
.pm-media img { display: block; width: 100%; height: min(320px, 38vh); object-fit: cover; }
.pm-media .credit {
  position: absolute; right: 8px; bottom: 8px; font-size: 11px;
  background: rgba(15,23,42,.62); color: #fff; padding: 2px 8px; border-radius: 999px;
}
.pm-media .credit a { color: #fff; }
.pm-close {
  position: absolute; top: 12px; right: 12px; z-index: 5; cursor: pointer;
  width: 40px; height: 40px; border-radius: 50%; border: 0;
  display: grid; place-items: center;
  background: rgba(15,23,42,.55); color: #fff; transition: background .18s;
}
.pm-close:hover { background: rgba(15,23,42,.8); }
.pm-body { padding: var(--space-2) var(--space-3) var(--space-3); }
.pm-body h3 { margin: 0 0 6px; font-size: 22px; letter-spacing: -.01em; }
.pm-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.pm-blurb { font-weight: 600; font-size: 14.5px; margin: 0 0 8px; color: var(--color-primary-deep); }
.pm-more { font-size: 14.5px; margin: 0 0 10px; }
.pm-wiki {
  background: var(--color-muted); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 10px 14px; font-size: 13.5px; color: var(--color-muted-text);
  margin-bottom: 12px;
}
.pm-wiki .src { display: block; margin-top: 6px; font-size: 12px; }
.pm-links { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
.pm-links a {
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
  font-size: 13.5px; font-weight: 600; color: var(--color-secondary-deep);
  border: 1px solid var(--color-border); border-radius: 999px; padding: 7px 14px; min-height: 38px;
  transition: border-color .18s, background .18s;
}
.pm-links a:hover { border-color: var(--color-secondary); background: #ECFEFF; }
.pm-actions { margin-top: 10px; }

/* activity cards become clickable + thumbnails */
.act-card { padding: 0; overflow: hidden; text-align: left; display: flex; flex-direction: column; }
.act-card .thumb { width: 100%; height: 132px; object-fit: cover; display: block; }
.act-card .inner { padding: 12px 16px 14px; }
button.act-card { font: inherit; color: inherit; cursor: pointer; border: 1px solid var(--color-border); transition: transform .2s, box-shadow .2s, border-color .2s; }
button.act-card:hover { transform: translateY(-2px); border-color: var(--color-primary); }
.act-card .explore { display: inline-flex; align-items: center; gap: 5px; margin-top: 8px; font-size: 13px; font-weight: 700; color: var(--color-secondary-deep); }

/* day place chips */
.place-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 2px; }
.place-chip {
  font: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--color-muted); color: var(--color-primary-deep);
  border: 1px solid var(--color-border); border-radius: 999px; padding: 6px 13px; min-height: 36px;
  transition: background .18s, border-color .18s;
}
.place-chip:hover { border-color: var(--color-primary); background: #FFEDD5; }

/* map popup more-info */
.popup-more {
  font: inherit; font-size: 13px; font-weight: 700; cursor: pointer;
  background: var(--color-primary); color: #fff; border: 0; border-radius: 999px;
  padding: 6px 14px; margin-top: 4px;
}
.popup-more:hover { background: var(--color-primary-deep); }