:root {
  --trip-max: 760px;
}

.trip-body { background: var(--bg); }
.trip-app-shell { width: min(var(--trip-max), 100%); min-height: 100dvh; margin: 0 auto; padding: 18px 16px 24px; display: flex; flex-direction: column; }
.trip-topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line-soft); }
.trip-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.trip-brand-mark { width: 30px; height: 30px; display: flex; align-items: end; gap: 3px; padding: 7px; border: 1px solid var(--accent); border-radius: 8px; }
.trip-brand-mark i { width: 4px; border-radius: 3px 3px 0 0; background: var(--accent); }
.trip-brand-mark i:nth-child(1) { height: 8px; opacity: .55; }
.trip-brand-mark i:nth-child(2) { height: 14px; }
.trip-brand-mark i:nth-child(3) { height: 10px; opacity: .75; }
.trip-brand strong, .trip-brand small { display: block; }
.trip-brand strong { font-size: 14px; letter-spacing: -.02em; }
.trip-brand small, .trip-data-status { color: var(--faint); font: 600 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; text-transform: uppercase; }
.trip-brand small { margin-top: 2px; color: var(--accent); }
.trip-data-status { display: inline-flex; align-items: center; gap: 6px; letter-spacing: .04em; text-transform: none; white-space: nowrap; }
.trip-data-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(100, 214, 162, .1); }

.trip-main { flex: 1; min-height: 0; display: flex; flex-direction: column; padding-top: 28px; }
.trip-screen { width: 100%; }
#trip-result-screen { min-height: 0; display: flex; flex: 1; flex-direction: column; overflow: hidden; }
.trip-result-fixed { flex: 0 0 auto; }
.trip-result-scroll { min-height: 0; flex: 1 1 auto; overflow-y: auto; overscroll-behavior: contain; padding: 0 2px 16px 0; scrollbar-width: thin; }
.trip-result-scroll .trip-arrivals-card { margin-top: 14px; }
.trip-intro, .trip-result-context { padding: 0 2px 20px; }
.trip-kicker { margin: 0 0 8px; color: var(--accent); font: 600 10px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .13em; text-transform: uppercase; }
.trip-intro h1, .trip-result-context h1 { max-width: 15ch; margin: 0; color: var(--text); font-size: clamp(32px, 9vw, 54px); line-height: .98; letter-spacing: -.055em; }
.trip-intro > p:last-child, .trip-result-context > p:last-child { max-width: 48ch; margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.45; }
.trip-result-context { display: block; }
.trip-context-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 7px; }
.trip-context-heading .trip-kicker { margin: 0; }
.trip-result-context h1 { max-width: 30ch; font-size: clamp(22px, 5.6vw, 34px); line-height: 1.02; letter-spacing: -.045em; }
.trip-result-context > p:last-child { margin-top: 8px; }
.trip-route-number { color: var(--amber); font-weight: 700; }

.trip-step-card { display: grid; gap: 1px; overflow: hidden; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--line-soft); }
.trip-step-block { padding: 18px 16px; background: var(--surface); }
.trip-step-block + .trip-step-block { border-top: 1px solid var(--line-soft); }
.trip-step-heading { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 11px; }
.trip-step-heading > span { color: var(--accent); font: 700 11px ui-monospace, SFMono-Regular, Menlo, monospace; }
.trip-step-heading label, .trip-step-heading small { display: block; }
.trip-step-heading label { color: var(--text); font-size: 14px; font-weight: 700; }
.trip-step-heading small { margin-top: 3px; color: var(--muted); font-size: 11px; }
.trip-input { width: 100%; min-height: 50px; border: 1px solid var(--line); border-radius: 9px; outline: none; background: var(--surface-raised); color: var(--text); padding: 10px 12px; font-size: 16px; }
.trip-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.trip-stop-search-row { display: grid; grid-template-columns: minmax(0, 1fr) 50px; gap: 8px; }
.trip-icon-button { min-height: 50px; border: 1px solid var(--line); border-radius: 9px; background: transparent; color: var(--accent); font-size: 22px; }
.trip-icon-button:hover, .trip-icon-button:focus-visible { border-color: var(--accent); background: var(--accent-soft); outline: none; }
.trip-choice-list { max-height: 290px; margin-top: 7px; overflow-y: auto; overscroll-behavior: contain; }
.trip-choice { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; border: 0; border-bottom: 1px solid var(--line-soft); background: transparent; color: var(--text); padding: 12px 2px; text-align: left; }
.trip-choice:hover, .trip-choice:focus-visible { background: var(--accent-soft); outline: none; }
.trip-choice strong, .trip-choice small { display: block; }
.trip-choice strong { font-size: 13px; }
.trip-choice small { margin-top: 4px; color: var(--muted); font-size: 11px; line-height: 1.35; }
.trip-choice-arrow { color: var(--accent); font-size: 18px; }
.trip-empty { margin: 0; padding: 10px 2px 2px; color: var(--muted); font-size: 11px; line-height: 1.45; }
.trip-error { margin: 12px 2px 0; color: var(--red); font-size: 12px; }
.trip-source-note { margin: 14px 2px 0; color: var(--faint); font-size: 10px; line-height: 1.45; }

.trip-back-button { margin: 0; border: 0; background: transparent; color: var(--accent); padding: 3px 0; font-size: 11px; }
.trip-back-button:hover, .trip-back-button:focus-visible { color: var(--accent); outline: none; }
.trip-arrivals-card, .trip-alerts-card { overflow: hidden; }
.trip-health-section { overflow: hidden; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); }
.trip-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 12px 8px; border-bottom: 1px solid var(--line-soft); }
.trip-section-heading h2 { margin: 0; color: var(--text); font-size: 13px; letter-spacing: -.02em; }
.trip-section-heading small { display: block; margin-top: 2px; color: var(--muted); font-size: 9px; }
.trip-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 15px 16px; border-bottom: 1px solid var(--line-soft); }
.trip-card-heading p { margin: 0; color: var(--faint); font: 600 10px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.trip-card-heading small { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; }
.trip-health-badge { flex: 0 0 auto; border: 1px solid rgba(100, 214, 162, .4); border-radius: 999px; padding: 4px 7px; color: var(--green); font: 600 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .04em; text-transform: uppercase; }
.trip-health-badge.is-watch { border-color: rgba(243, 183, 91, .45); color: var(--amber); }
.trip-health-badge.is-risk { border-color: rgba(239, 117, 111, .45); color: var(--red); }
.trip-health-badge.is-loading { border-color: var(--line); color: var(--muted); }

.trip-signal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; margin: 10px 0; }
.trip-health-section .trip-signal-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 5px; margin: 0; padding: 6px; }
.trip-signal-card { min-height: 88px; border: 1px solid var(--line-soft); border-radius: 10px; background: var(--surface); padding: 12px; text-align: left; }
.trip-health-section .trip-signal-card { min-height: 52px; padding: 7px 5px; border-radius: 8px; text-align: center; }
.trip-signal-card span, .trip-signal-card small { display: block; }
.trip-signal-card span { color: var(--muted); font-size: 10px; white-space: nowrap; }
.trip-signal-card strong { display: block; margin-top: 4px; color: var(--text); font: 700 18px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.05em; }
.trip-signal-card small { margin-top: 6px; color: var(--faint); font-size: 10px; line-height: 1.25; }
.trip-health-section .trip-signal-card small { display: none; }
.trip-signal-card.is-empty { border-color: rgba(29, 42, 46, .8); background: rgba(12, 20, 22, .55); opacity: .62; }
.trip-signal-card.is-empty strong { color: var(--faint); font-size: 18px; }
.trip-signal-card.is-empty small { color: var(--faint); }
.trip-signal-card-action { width: 100%; border: 1px solid var(--line-soft); cursor: pointer; }
.trip-signal-card-action:hover, .trip-signal-card-action:focus-visible { border-color: var(--accent); background: var(--accent-soft); outline: none; }
.trip-signal-card-action strong { color: var(--amber); }
.trip-signal-grid.is-muted { gap: 5px; opacity: .72; }
.trip-signal-grid.is-muted .trip-signal-card { min-height: 52px; padding: 7px 5px; background: transparent; }
.trip-signal-grid.is-muted .trip-signal-card span { color: var(--faint); font-size: 10px; }
.trip-signal-grid.is-muted .trip-signal-card strong { margin-top: 4px; color: var(--faint); font-size: 15px; }
.trip-signal-grid.is-muted .trip-signal-card small { margin-top: 3px; font-size: 9px; }
.trip-arrivals-list { padding: 0 16px; }
.trip-arrival-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line-soft); }
.trip-arrival-row.is-first { margin-inline: -16px; padding-inline: 16px; background: rgba(56, 196, 199, .06); }
.trip-arrival-route strong, .trip-arrival-route small { display: block; }
.trip-arrival-route strong { color: var(--amber); font: 700 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
.trip-arrival-route small { max-width: 34ch; margin-top: 4px; overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.trip-arrival-time { color: var(--text); font: 700 14px ui-monospace, SFMono-Regular, Menlo, monospace; text-align: right; white-space: nowrap; }
.trip-arrival-row.is-first { padding-block: 16px; }
.trip-arrival-route { min-width: 0; flex: 1 1 auto; }
.trip-arrival-time { flex: 0 0 auto; }
.trip-arrival-row.is-first .trip-arrival-time { font-size: clamp(22px, 7vw, 30px); letter-spacing: -.07em; }
.trip-arrival-time small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .03em; }
.trip-arrival-time.has-gps { color: var(--accent); }
.trip-alerts-card { min-height: 200px; }
.trip-alerts-list { padding: 18px 16px; }
.trip-alert-empty { display: grid; gap: 7px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.trip-alert-empty strong { color: var(--text); font-size: 16px; }
.trip-alert-item { padding: 14px 0; border-bottom: 1px solid var(--line-soft); }
.trip-alert-item strong { color: var(--text); font-size: 14px; }
.trip-alert-item p { margin: 5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.trip-footer { display: flex; justify-content: space-between; gap: 12px; margin-top: 28px; padding-top: 12px; border-top: 1px solid var(--line-soft); color: var(--faint); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }

@media (min-width: 680px) {
  .trip-app-shell { padding: 26px 24px 30px; }
  .trip-main { padding-top: 46px; }
  .trip-step-card { grid-template-columns: 1fr 1fr; }
  .trip-step-block + .trip-step-block { border-top: 0; border-left: 1px solid var(--line-soft); }
  .trip-signal-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 440px) {
  .trip-app-shell { padding-inline: 12px; }
  .trip-data-status { font-size: 0; }
  .trip-data-status i { width: 7px; height: 7px; }
  .trip-footer { align-items: flex-start; flex-direction: column; }
}