:root {
  --ink: #202b35;
  --muted: #62707c;
  --page: #f5f6f7;
  --surface: #fff;
  --line: #d5dbe0;
  --blue: #166396;
  --blue-dark: #114f78;
  --blue-pale: #eaf2f7;
  --danger: #9b3630;
  --surface-hover: #f6fafc;
  --menu-surface: #e8eef2;
  --secondary-hover: #ddebf3;
  --input: #fff;
  --input-line: #bec8cf;
  --table-head: #f0f3f5;
  --table-heading: #53616b;
  --tag-ink: #345d76;
  --tag-line: #d6e5ee;
  --notice-ink: #455864;
  --notice-line: #cfdae1;
  --danger-pale: #fff3f2;
  --danger-line: #d8b5b1;
  --visited: #edf8ed;
  --visited-line: #b9ddba;
  --visited-hover: #e3f4e3;
  --visited-hover-line: #8ec891;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--page);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --ink: #e7edf1;
  --muted: #aab6bf;
  --page: #111820;
  --surface: #182127;
  --line: #34414b;
  --blue: #7bb9df;
  --blue-dark: #acd8f0;
  --blue-pale: #1e3544;
  --danger: #ffaaa2;
  --surface-hover: #202c34;
  --menu-surface: #223947;
  --secondary-hover: #29495c;
  --input: #121a20;
  --input-line: #53616b;
  --table-head: #202b33;
  --table-heading: #bdc8d0;
  --tag-ink: #b4d9ed;
  --tag-line: #38586b;
  --notice-ink: #c5d5df;
  --notice-line: #3e5a6c;
  --danger-pale: #3b2527;
  --danger-line: #7a4549;
  --visited: #193524;
  --visited-line: #397447;
  --visited-hover: #24492f;
  --visited-hover-line: #5a9c67;
  color-scheme: dark;
}

* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; line-height: 1.45; background: var(--page); }
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
button, input, select { font: inherit; }
button { cursor: pointer; }

.site-header { position: sticky; z-index: 20; top: 0; background: var(--surface); border-bottom: 1px solid var(--line); }
.header-inner { width: min(1120px, calc(100% - 2rem)); min-height: 72px; margin: auto; display: flex; justify-content: space-between; align-items: center; gap: .75rem; }
.header-actions { display: flex; align-items: center; gap: .45rem; }
.mobile-menu-toggle { display: none; }
.header-checkin { display: inline-flex; align-items: center; min-height: 2.25rem; padding: .45rem .7rem; color: #fff; border: 1px solid var(--blue); border-radius: 3px; background: var(--blue); font-size: .9rem; font-weight: 650; text-decoration: none; white-space: nowrap; }
.header-checkin:hover { color: #fff; border-color: var(--blue-dark); background: var(--blue-dark); }
.main-nav { display: flex; align-items: center; gap: .1rem; margin-left: auto; overflow-x: auto; }
.main-nav a, .nav-logout { display: inline-block; padding: .45rem .6rem; color: var(--ink); border: 0; background: transparent; text-decoration: none; font-size: .9rem; }
.main-nav a:hover, .nav-logout:hover { color: var(--blue); text-decoration: underline; text-underline-offset: .2em; }
.main-nav form { margin: 0; }
.main-nav .nav-cta { color: #fff; background: var(--blue); text-decoration: none; }
.main-nav .nav-cta:hover { color: #fff; background: var(--blue-dark); text-decoration: none; }
.user-pill { padding: .3rem .6rem; color: var(--muted); font-size: .85rem; }
.theme-toggle { width: 2.1rem; min-height: 2.1rem; padding: 0; color: var(--muted); border: 0; background: transparent; font-size: 1rem; line-height: 1; }
.theme-toggle:hover { color: var(--blue); background: var(--surface-hover); }
.mobile-menu { display: none; }

.site-content { width: min(1120px, calc(100% - 2rem)); margin: auto; padding: 2.25rem 0 3.5rem; }
h1, h2, h3 { margin: 0; color: var(--ink); line-height: 1.2; font-weight: 650; }
h1 { font-size: clamp(1.8rem, 4vw, 2.45rem); }
h1 small { color: var(--muted); font-size: .45em; font-weight: 400; white-space: nowrap; }
h2 { font-size: 1.25rem; }
p { margin: .45rem 0; }
.eyebrow { margin: 0 0 .45rem; color: var(--muted); font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.lede, .catalog-meta { max-width: 50rem; color: var(--muted); }
.page-heading, .catalog-intro { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1.3rem; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin: 2rem 0 .7rem; }

.card, .form-card, .table-card, .notice { background: var(--surface); border: 1px solid var(--line); border-radius: 4px; }
.card, .form-card { padding: 1.25rem; }
.table-card { overflow: hidden; }
.notice { padding: 1rem; color: var(--muted); }
.button, button:not(.nav-logout):not(.theme-toggle):not(.mobile-menu-toggle) { display: inline-flex; justify-content: center; align-items: center; min-height: 2.5rem; padding: .48rem .8rem; color: #fff; border: 1px solid var(--blue); border-radius: 3px; background: var(--blue); font-weight: 650; text-decoration: none; }
.button:hover, button:not(.nav-logout):not(.theme-toggle):not(.mobile-menu-toggle):hover { color: #fff; border-color: var(--blue-dark); background: var(--blue-dark); }
.button.secondary { color: var(--blue); border-color: var(--blue); background: var(--blue-pale); }
.button.secondary:hover { color: var(--blue-dark); background: var(--secondary-hover); }
.button.ghost { color: var(--ink); border-color: var(--line); background: var(--surface); }
.button.ghost:hover { color: var(--blue); background: var(--surface-hover); }
.button.danger { min-height: 2rem; padding: .3rem .5rem; color: var(--danger); border-color: var(--danger-line); background: var(--surface); font-size: .84rem; }
.button.danger:hover { color: var(--danger); background: var(--danger-pale); }
.button-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }

label { display: block; margin-bottom: .35rem; font-size: .88rem; font-weight: 650; }
input:not([type="checkbox"]), select { width: 100%; min-height: 2.55rem; padding: .5rem .6rem; color: var(--ink); border: 1px solid var(--input-line); border-radius: 3px; background: var(--input); }
input:not([type="checkbox"]):focus, select:focus { outline: 2px solid rgba(22, 99, 150, .22); outline-offset: 1px; border-color: var(--blue); }
.field, .form-stack > p { margin: 0; }
.form-stack { display: grid; gap: 1rem; }
.field-error, .errorlist { margin: .3rem 0 0; padding: 0; color: var(--danger); list-style: none; font-size: .86rem; }
fieldset { margin: 0; padding: 0; border: 0; }
legend { margin-bottom: .45rem; font-size: .88rem; font-weight: 650; }
.choice-grid { display: flex; flex-wrap: wrap; gap: .4rem; }
.choice-grid label { display: inline-flex; align-items: center; gap: .3rem; margin: 0; padding: .4rem .5rem; border: 1px solid var(--line); font-weight: 400; }
.choice-grid input { accent-color: var(--blue); }

.hero { padding: 0 0 1.25rem; border-bottom: 1px solid var(--line); }
.hero h1 { max-width: 20ch; }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; margin-top: 1.2rem; }
.quick-card { display: flex; flex-direction: column; gap: .5rem; min-height: 8.5rem; padding: 1rem; color: var(--ink); border: 1px solid var(--line); border-radius: 4px; background: var(--surface); text-decoration: none; }
.quick-card:hover { color: var(--ink); border-color: var(--blue); background: var(--surface-hover); }
.quick-card span { color: var(--muted); font-size: .9rem; }
.quick-number { color: var(--blue) !important; font-size: 1.45rem !important; font-weight: 700; }
.auth-shell { width: min(100%, 28rem); margin: 4vh auto; }
.auth-footer { color: var(--muted); font-size: .9rem; }

.search-panel { display: grid; grid-template-columns: minmax(16rem, 1.5fr) minmax(12rem, .8fr); gap: 1rem; }
.search-panel .service-field { grid-column: 1 / -1; }
.checkin-filters { margin: 0 0 1.25rem; }
.checkin-filters summary { color: var(--ink); cursor: pointer; font-size: 1.05rem; font-weight: 650; }
.checkin-filters[open] summary { margin-bottom: .7rem; }
.checkin-secondary-filters { display: flex; flex-wrap: wrap; align-items: end; gap: .8rem; }
.compact-field { width: min(11rem, 100%); }
.compact-field label, .compact-service-field legend, .all-checkins-choice label { color: var(--muted); font-size: .78rem; font-weight: 600; }
.compact-field select { min-height: 2.1rem; font-size: .88rem; }
.compact-choices { gap: .25rem; }
.compact-choices label { padding: .28rem .38rem; font-size: .8rem; }
.all-checkins-choice { align-self: end; }
.all-checkins-choice label { display: inline-flex; align-items: center; gap: .3rem; margin: 0; }
.filter-panel { display: flex; flex-wrap: wrap; align-items: end; gap: 1rem; margin-top: 1.25rem; }
.filter-panel .search-actions { margin-left: auto; }
.search-actions { display: flex; align-items: end; gap: .6rem; }
.result-meta { display: flex; justify-content: space-between; gap: 1rem; margin: 1.25rem 0 .65rem; color: var(--muted); font-size: .9rem; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: .7rem .8rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { color: var(--table-heading); background: var(--table-head); font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .035em; white-space: nowrap; }
th a { color: inherit; text-decoration: none; }
th a:hover { color: var(--blue); text-decoration: underline; }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 650; }
.visit-marker { width: 2.2rem; padding-right: .15rem; padding-left: .45rem; text-align: center; }
.visit-marker-icon { color: #24813c; font-size: 1rem; font-weight: 750; }
.station-name-cell { font-weight: 650; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
code { color: var(--blue-dark); font-size: .84em; }
.tag { display: inline-block; margin: 0 .15rem .15rem 0; padding: .14rem .38rem; color: var(--tag-ink); background: var(--blue-pale); border: 1px solid var(--tag-line); border-radius: 2px; font-size: .76rem; }
.match { color: var(--muted); font-size: .84rem; }
.pagination { display: flex; justify-content: space-between; gap: 1rem; margin-top: .9rem; }
.pagination a { padding: .45rem .55rem; border: 1px solid var(--line); background: var(--surface); text-decoration: none; }
.station-list-action { margin-top: 2rem; }
.collapsible-section { margin: 1.1rem 0; }
.collapsible-section summary { color: var(--ink); cursor: pointer; font-size: 1.25rem; font-weight: 650; }
.collapsible-section .table-card { margin-top: .7rem; }

.station-card { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem; margin-bottom: 1rem; border: 1px solid var(--line); border-left: 4px solid var(--blue); background: var(--surface); }
.station-card p { color: var(--muted); }
.privacy-note { padding: .75rem .9rem; margin: 0 0 1rem; color: var(--notice-ink); border: 1px solid var(--notice-line); background: var(--blue-pale); font-size: .9rem; }
.search-line { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .6rem; }
.nearby { margin-top: 1rem; }
.nearby-status { min-height: 1.3rem; color: var(--muted); font-size: .9rem; }
.result-list { display: grid; gap: .4rem; margin: .8rem 0 0; padding: 0; list-style: none; }
.result-list a { display: block; padding: .7rem .8rem; border: 1px solid var(--line); background: var(--surface); text-decoration: none; }
.result-list a:hover { background: var(--surface-hover); border-color: var(--blue); }
.result-list .station-result { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .15rem .8rem; }
.station-result-name { grid-column: 1 / -1; color: var(--blue); font-weight: 650; }
.station-result-details { min-width: 0; color: var(--muted); font-size: .9rem; }
.station-result-distance { align-self: end; color: var(--muted); font-size: .85rem; white-space: nowrap; }
.result-list a.station-result.is-visited { border-color: var(--visited-line); background: var(--visited); }
.result-list a.station-result.is-visited:hover { border-color: var(--visited-hover-line); background: var(--visited-hover); }
.result-empty { padding: .7rem .8rem; color: var(--muted); border: 1px solid var(--line); background: var(--surface); }
.empty-state { padding: 2.5rem 1.25rem; text-align: center; color: var(--muted); }

.stat-hero { display: flex; justify-content: space-between; align-items: end; gap: 1rem; padding: 1.25rem; border: 1px solid var(--line); border-left: 4px solid var(--blue); background: var(--surface); }
.stat-hero p { color: var(--muted); }
.stat-numbers { display: flex; gap: 1.5rem; }
.stat-number { display: grid; gap: .1rem; }
.stat-number strong { color: var(--blue); font-size: 1.65rem; }
.stat-number span { color: var(--muted); font-size: .8rem; }

@media (max-width: 720px) {
  .header-inner, .site-content { width: min(100% - 1.2rem, 1120px); }
  .header-inner { min-height: 76px; }
  .header-actions { gap: .35rem; }
  .header-checkin { min-height: 3.8rem; padding-right: .9rem; padding-left: .9rem; font-size: 1rem; }
  .mobile-menu-toggle { display: inline-flex; flex-direction: column; justify-content: center; align-items: center; width: 3.8rem; min-height: 3.8rem; padding: 0; gap: .42rem; color: var(--ink); border: 1px solid var(--line); border-radius: 3px; background: var(--surface); }
  .mobile-menu-toggle:hover { color: var(--blue); border-color: var(--blue); background: var(--surface-hover); }
  .mobile-menu-toggle span { width: 1.7rem; height: 2px; background: currentColor; }
  .main-nav { display: none; }
  .theme-toggle { margin-left: auto; }
  .mobile-menu:not([hidden]) { position: fixed; z-index: 10; top: 76px; bottom: 0; left: 0; display: flex; flex-direction: column; width: max-content; max-width: calc(100vw - .6rem); padding: .65rem; border-right: 1px solid var(--line); background: var(--menu-surface); box-shadow: .45rem .55rem 1.1rem rgba(0, 0, 0, .2); }
  .mobile-menu a, .mobile-menu .nav-logout { display: flex; align-items: center; width: 100%; min-height: 3.1rem; padding: .7rem .8rem; color: var(--ink); border: 1px solid var(--line); border-radius: 3px; background: var(--surface); text-align: left; text-decoration: none; white-space: nowrap; }
  .mobile-menu a:hover, .mobile-menu .nav-logout:hover { color: var(--blue); background: var(--surface-hover); }
  .mobile-menu form { margin: auto 0 0; padding-top: .35rem; border-top: 1px solid var(--line); }
  .site-content { padding-top: 1.5rem; }
  .page-heading, .catalog-intro, .stat-hero { align-items: flex-start; flex-direction: column; }
  .quick-grid, .search-panel { grid-template-columns: 1fr; }
  .quick-card { align-items: center; justify-content: center; gap: .35rem; min-height: 6.7rem; text-align: center; }
  .quick-card strong { font-size: 1.25rem; }
  .quick-card .quick-number { font-size: 1.4rem !important; }
  .station-card { flex-direction: column; }
  .stat-numbers { width: 100%; justify-content: space-between; }
  .search-line { grid-template-columns: 1fr; }
  th, td { padding: .65rem; }
}

@media (min-width: 721px) and (max-width: 950px) {
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
}