:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: var(--tg-theme-secondary-bg-color, #f2f6f4);
  --card: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #12211c);
  --hint: var(--tg-theme-hint-color, #68766f);
  --accent: var(--tg-theme-button-color, #16895b);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --line: color-mix(in srgb, var(--hint) 24%, transparent);
  --soft: color-mix(in srgb, var(--accent) 10%, var(--card));
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--text); }
button, input { font: inherit; }
button, label { -webkit-tap-highlight-color: transparent; }
.screen {
  width: min(100%, 540px);
  min-height: 100vh;
  margin: 0 auto;
  padding: calc(22px + var(--tg-content-safe-area-inset-top, 0px)) 16px calc(28px + var(--tg-content-safe-area-inset-bottom, 0px));
}
.eyebrow { margin: 0 0 6px; color: var(--accent); font-size: 12px; font-weight: 850; letter-spacing: .1em; }
h1 { margin: 0; font-size: 28px; line-height: 1.18; letter-spacing: -.025em; }
.intro { margin: 9px 0 22px; color: var(--hint); font-size: 14px; line-height: 1.55; }
form { display: grid; gap: 12px; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.operator-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; border-radius: 14px; background: color-mix(in srgb, var(--hint) 11%, transparent); }
.operator-picker legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.operator-picker label { cursor: pointer; }
.operator-picker input { position: absolute; opacity: 0; pointer-events: none; }
.operator-picker span { display: grid; min-height: 42px; place-items: center; border-radius: 11px; color: var(--hint); }
.operator-picker input:checked + span { background: var(--card); color: var(--text); box-shadow: 0 2px 10px rgba(10, 35, 25, .09); font-weight: 800; }
.card { padding: 18px; border: 1px solid var(--line); border-radius: 19px; background: var(--card); box-shadow: 0 8px 24px rgba(10, 35, 25, .045); }
.section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.section-heading > div { display: flex; align-items: center; gap: 8px; }
.section-heading h2 { margin: 0; font-size: 17px; }
.step { display: grid; width: 27px; height: 27px; place-items: center; border-radius: 9px; background: var(--soft); color: var(--accent); font-size: 11px; font-weight: 850; }
.text-button { padding: 7px 0 7px 10px; border: 0; background: none; color: var(--accent); font-size: 13px; font-weight: 700; }
.field { display: grid; gap: 6px; min-width: 0; }
.field > span, .field-label { color: var(--hint); font-size: 12px; font-weight: 700; }
.field input { width: 100%; min-height: 48px; padding: 0 12px; border: 1px solid var(--line); border-radius: 12px; outline: none; background: var(--card); color: var(--text); }
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--soft); }
.route-fields { display: grid; grid-template-columns: 1fr 28px 1fr; align-items: end; gap: 5px; }
.route-arrow { align-self: center; padding-top: 18px; text-align: center; color: var(--accent); font-weight: 800; }
.quick-stations { display: flex; gap: 7px; margin-top: 12px; overflow-x: auto; scrollbar-width: none; }
.quick-stations::-webkit-scrollbar { display: none; }
.quick-stations button { flex: 0 0 auto; padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); color: var(--text); font-size: 12px; }
.full { margin-bottom: 12px; }
.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.check-row { display: flex; gap: 10px; margin-top: 13px; cursor: pointer; }
.check-row input { width: 19px; height: 19px; accent-color: var(--accent); }
.check-row span { display: grid; gap: 3px; font-size: 13px; }
.check-row small, .passenger-row small { color: var(--hint); }
.choice-group { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 17px; }
.choice-group:first-of-type { margin-top: 0; }
.choice-group legend { grid-column: 1 / -1; margin-bottom: 7px; color: var(--hint); font-size: 12px; font-weight: 700; }
.choice-group label { cursor: pointer; }
.choice-group input { position: absolute; opacity: 0; pointer-events: none; }
.choice-group label > span { display: grid; min-height: 53px; align-content: center; gap: 2px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 12px; font-size: 13px; }
.choice-group small { color: var(--hint); font-size: 10px; }
.choice-group input:checked + span { border-color: var(--accent); background: var(--soft); box-shadow: inset 0 0 0 1px var(--accent); color: var(--accent); font-weight: 750; }
.passenger-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 19px; }
.passenger-row > div:first-child { display: grid; gap: 3px; }
.stepper { display: grid; grid-template-columns: 38px 54px 38px; align-items: center; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.stepper button { height: 40px; border: 0; background: var(--soft); color: var(--accent); font-size: 20px; }
.stepper output { text-align: center; font-size: 13px; font-weight: 800; }
.notice { display: grid; gap: 4px; padding: 14px 16px; border-radius: 15px; background: var(--soft); color: var(--accent); font-size: 13px; }
.notice span { color: var(--hint); line-height: 1.45; }
.error { min-height: 20px; margin: 0; color: #c53d3d; font-size: 13px; text-align: center; }
.error:empty { min-height: 0; }
.submit-button { display: grid; place-items: center; width: 100%; min-height: 52px; border: 0; border-radius: 14px; background: var(--accent); color: var(--accent-text); font-weight: 850; }
.submit-button[disabled] { opacity: .5; }
[hidden] { display: none !important; }

/* ---------- screens ---------- */
.view { display: grid; gap: 12px; }
.view > header { display: block; }
.boot { padding: 80px 0; color: var(--hint); text-align: center; font-size: 14px; }
.stack { display: grid; gap: 8px; }
.button-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ghost-button { display: grid; place-items: center; min-height: 48px; padding: 0 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); color: var(--text); font-size: 14px; font-weight: 700; text-decoration: none; }
.danger-button { min-height: 46px; border: 1px solid color-mix(in srgb, #c53d3d 40%, transparent); border-radius: 13px; background: var(--card); color: #c53d3d; font-weight: 750; }
.hint-line { margin: 0 0 4px; color: var(--hint); font-size: 12px; line-height: 1.5; }
.version { margin: 4px 0 0; color: var(--hint); font-size: 11px; text-align: center; }

/* ---------- status cards ---------- */
.status-card { display: grid; gap: 9px; }
.status-card.warn { border-color: color-mix(in srgb, #c9902a 45%, transparent); }
.status-head { display: flex; align-items: center; gap: 8px; }
.status-head h2 { margin: 0; font-size: 15px; }
.status-line { margin: 0; font-size: 17px; font-weight: 800; letter-spacing: -.01em; }
.status-meta { margin: 0; color: var(--hint); font-size: 12.5px; line-height: 1.5; }
.pulse { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
@media (prefers-reduced-motion: no-preference) { .pulse { animation: pulse 1.6s ease-in-out infinite; } }
@keyframes pulse { 50% { opacity: .25; } }

/* ---------- train picker ---------- */
.train { display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 11px; width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); color: var(--text); text-align: left; }
.train[aria-pressed="true"] { border-color: var(--accent); background: var(--soft); box-shadow: inset 0 0 0 1px var(--accent); }
.train .tick { display: grid; width: 21px; height: 21px; place-items: center; border: 1px solid var(--line); border-radius: 7px; color: transparent; font-size: 12px; font-weight: 900; }
.train[aria-pressed="true"] .tick { border-color: var(--accent); background: var(--accent); color: var(--accent-text); }
.train .label { min-width: 0; font-size: 14px; font-weight: 700; overflow-wrap: anywhere; }
.train .seat { flex: 0 0 auto; padding: 4px 9px; border-radius: 999px; background: color-mix(in srgb, var(--hint) 14%, transparent); color: var(--hint); font-size: 11px; font-weight: 750; white-space: nowrap; }
.train .seat.soldout { background: color-mix(in srgb, #c53d3d 13%, transparent); color: #c53d3d; }
.empty-line { margin: 0; padding: 18px 0; color: var(--hint); font-size: 13px; text-align: center; }

/* ---------- summary ---------- */
.summary { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; margin: 0; }
.summary dt { color: var(--hint); font-size: 12.5px; font-weight: 700; white-space: nowrap; }
.summary dd { margin: 0; font-size: 13.5px; font-weight: 650; text-align: right; overflow-wrap: anywhere; }

/* ---------- favourites and accounts ---------- */
.row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; }
.row .title { font-size: 14px; font-weight: 750; }
.row .sub { margin-top: 3px; color: var(--hint); font-size: 12px; }
.row .actions { display: flex; gap: 6px; }
.chip-button { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); color: var(--text); font-size: 12px; font-weight: 700; }
.chip-button.danger { border-color: color-mix(in srgb, #c53d3d 40%, transparent); color: #c53d3d; }

/* ---------- blocking spinner ---------- */
.blocker { position: fixed; inset: 0; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 62%, transparent); }
.spinner { width: 30px; height: 30px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; }
@media (prefers-reduced-motion: no-preference) { .spinner { animation: spin .8s linear infinite; } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 350px) { .card { padding: 15px; } .choice-group { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: no-preference) { .card, .submit-button { transition: transform .15s ease; } .submit-button:active { transform: scale(.985); } }