* { box-sizing: border-box; }
:root { font-family: system-ui, -apple-system, "Noto Sans TC", sans-serif; line-height: 1.6; color: var(--on-surface); background: var(--surface); color-scheme: light; }
body { margin: 0; }
a { color: var(--primary); text-underline-offset: .2em; }
button, input { font: inherit; }
button, a, summary, input { -webkit-tap-highlight-color: transparent; }
button, summary { cursor: pointer; }
a, button, summary { touch-action: manipulation; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.3; letter-spacing: -.04em; margin: .75rem 0 1.25rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
.icon { flex-shrink: 0; vertical-align: middle; }
.topbar, main, footer { width: min(1120px, calc(100% - 3rem)); margin: auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; min-height: 88px; border-bottom: 1px solid var(--outline-variant); }
.brand, nav a, .action, button, .eyebrow, .trip-meta span { display: inline-flex; align-items: center; gap: .5rem; }
.brand { font-weight: 750; text-decoration: none; color: var(--on-surface); }
.brand > .icon { width: 28px; height: 28px; color: var(--primary); }
nav { display: flex; gap: .5rem; }
nav a, button { min-height: 44px; padding: .5rem 1rem; border: 0; border-radius: 24px; background: transparent; text-decoration: none; color: var(--on-surface-variant); justify-content: center; }
nav a[aria-current="page"] { color: var(--on-primary-container); background: var(--primary-container); font-weight: 650; }
nav a:hover, button:hover:not(:disabled) { background: var(--surface-container-high); }
button:disabled { opacity: .4; cursor: default; }
.intro { padding: 3rem 0; }
.eyebrow { font-size: .8rem; letter-spacing: .06em; font-weight: 700; color: var(--primary); }
.trip-meta { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; font-size: .85rem; color: var(--on-surface-variant); }
.layout { display: grid; grid-template-columns: 172px minmax(0, 1fr); gap: 3rem; align-items: start; }
.day-nav { position: sticky; top: 1.5rem; max-height: calc(100dvh - 3rem); overflow: auto; }
.day-nav nav { flex-direction: column; gap: .25rem; }
.day-nav .eyebrow { padding: 0 .75rem .75rem; }
.day-nav a { justify-content: space-between; padding: .5rem .75rem; font-size: .85rem; }
.day-nav a span { font-variant-numeric: tabular-nums; color: var(--on-surface-variant); }
.day, #accommodations, .location-group { margin-bottom: 3rem; scroll-margin-top: 1.5rem; }
.section-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; gap: 1rem; }
.section-heading > span { color: var(--on-surface-variant); font-size: .85rem; font-variant-numeric: tabular-nums; }
.primary { --tone: var(--primary); --tone-container: var(--primary-container); --on-tone: var(--on-primary-container); }
.secondary { --tone: var(--secondary); --tone-container: var(--secondary-container); --on-tone: var(--on-secondary-container); }
.tertiary { --tone: var(--tertiary); --tone-container: var(--tertiary-container); --on-tone: var(--on-tertiary-container); }
.accent { --tone: var(--accent); --tone-container: var(--accent-container); --on-tone: var(--on-accent-container); }
.event { background: var(--surface-container-low); border: 1px solid var(--outline-variant); border-radius: 16px; margin-bottom: .75rem; overflow: clip; scroll-margin-top: 1.5rem; }
.event summary { display: flex; align-items: center; gap: 1rem; padding: 1.25rem; list-style: none; }
.event summary::-webkit-details-marker { display: none; }
.category-icon { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; border-radius: 12px; background: var(--tone-container); color: var(--on-tone); }
.event-heading { flex: 1; min-width: 0; }
.event-title { display: block; font-weight: 650; }
.event-time { display: block; color: var(--on-surface-variant); font-size: .78rem; font-variant-numeric: tabular-nums; margin-top: .25rem; }
.chevron { color: var(--on-surface-variant); }
.event[open] .chevron { transform: rotate(180deg); }
.event-body { padding: 0 1.25rem 1.25rem; }
.event-body p { margin-top: 1rem; white-space: pre-line; }
.badge { display: inline-block; color: var(--on-tone); background: var(--tone-container); font-size: .75rem; border-radius: 6px; padding: .15rem .5rem; }
.notes { border-left: 3px solid var(--accent); padding: .75rem 1rem; background: var(--accent-container); color: var(--on-accent-container); border-radius: 0 8px 8px 0; font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
.action { min-height: 44px; margin-top: .75rem; font-size: .85rem; font-weight: 650; text-decoration: none; }
.action:hover { text-decoration: underline; }
.event.is-active { border-color: var(--secondary); border-left: 4px solid var(--secondary); }
.event.is-active .event-title::after { content: "進行中"; font-size: .7rem; display: inline-block; margin-left: .5rem; padding: .1rem .5rem; background: var(--secondary-container); color: var(--on-secondary-container); border-radius: 6px; }
.tracker { border-radius: 20px; background: var(--primary-container); color: var(--on-primary-container); padding: 1.5rem; margin-bottom: 2.5rem; }
.tracker-heading, .tracker-controls { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.tracker-heading .eyebrow, .tracker button { color: var(--on-primary-container); }
.tracker button { padding: .5rem .75rem; font-size: .8rem; }
.tracked-title { display: block; color: inherit; font-size: 1.35rem; font-weight: 700; text-decoration: none; margin-top: .75rem; }
#tracked-time, #remaining, #counter { font-size: .8rem; }
.tracker-controls { border-top: 1px solid var(--primary); margin-top: 1rem; padding-top: .5rem; }
progress { display: block; width: 100%; height: 8px; margin: 1rem 0 .5rem; accent-color: var(--primary); }
.accommodation { padding: 1.25rem 0; border-bottom: 1px solid var(--outline-variant); }
.accommodation h3 { margin: .5rem 0; }
.accommodation p { font-size: .85rem; color: var(--on-surface-variant); }
.map-tools { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.search-field { display: flex; align-items: center; gap: .75rem; border: 1px solid var(--outline); border-radius: 28px; background: var(--surface-container-low); padding: .25rem 1rem; flex: 1; max-width: 480px; color: var(--on-surface-variant); }
input { min-width: 0; width: 100%; min-height: 44px; border: 0; background: transparent; color: var(--on-surface); }
input::placeholder { color: var(--on-surface-variant); }
#search-status { font-size: .85rem; color: var(--on-surface-variant); margin: 1.25rem 0 2rem; }
.locations { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.location { display: flex; align-items: start; gap: 1rem; border: 1px solid var(--outline-variant); background: var(--surface-container-low); border-radius: 16px; padding: 1.25rem; }
.location > div { min-width: 0; }
.location p { margin-top: .5rem; font-size: .85rem; }
footer { display: flex; justify-content: space-between; border-top: 1px solid var(--outline-variant); padding: 2rem 0; margin-top: 2rem; color: var(--on-surface-variant); font-size: .8rem; }
.skip-link { position: absolute; left: 1rem; top: -100px; padding: .75rem; background: var(--surface); z-index: 1; }
.skip-link:focus { top: 1rem; }
.event-title, .location h3, .location p, .accommodation h3, .accommodation p { overflow-wrap: anywhere; }
@media (max-width: 767px) {
  .topbar, main, footer { width: calc(100% - 2rem); }
  .topbar { min-height: 72px; }
  .topbar nav a { padding: .5rem .75rem; }
  .brand { font-size: .9rem; }
  .intro { padding: 2rem 0; }
  .layout { display: block; }
  .day-nav { position: static; max-height: none; margin-bottom: 2rem; }
  .day-nav nav { flex-direction: row; overflow-x: auto; gap: .5rem; padding: .25rem; }
  .day-nav .eyebrow { display: none; }
  .day-nav a { flex-shrink: 0; gap: .5rem; border: 1px solid var(--outline-variant); }
  .tracker { padding: 1rem; }
  .event summary { padding: 1rem; gap: .75rem; }
  .event-body { padding: 0 1rem 1rem; }
  .category-icon { width: 36px; height: 36px; }
  .event-time { font-size: .72rem; }
  .map-tools { flex-direction: column; align-items: stretch; }
  .search-field { max-width: none; }
  .map-tools nav { justify-content: flex-end; }
  .locations { grid-template-columns: 1fr; }
}
@media print {
  .topbar, .day-nav, .tracker, footer, .map-tools, .skip-link, #search-status { display: none !important; }
  .layout { display: block; }
  .event { break-inside: avoid; }
}