:root {
  color-scheme: light;
  --bg: #edf2f6;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.97);
  --border: rgba(17, 24, 39, 0.1);
  --text: #102033;
  --muted: #4a6074;
  --accent: #d81d32;
  --accent-deep: #a90d20;
  --train-active: #006400;
  --train-scheduled: #374151;
  --activity-active-bg: rgba(0, 100, 0, 0.12);
  --activity-active-text: #006400;
  --activity-scheduled-bg: rgba(55, 65, 81, 0.12);
  --activity-scheduled-text: #374151;
  --activity-complete-bg: rgba(71, 85, 105, 0.14);
  --activity-complete-text: #475569;
  --shadow: 0 24px 60px rgba(16, 32, 51, 0.16);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(109, 176, 255, 0.28), transparent 32%),
    linear-gradient(180deg, #f8fbfd 0%, var(--bg) 100%);
  color: var(--text);
}

body {
  padding: 18px;
}

.app-shell {
  position: relative;
  height: calc(100vh - 36px);
  display: grid;
  grid-template-columns: minmax(340px, 420px) minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 18px;
}

.app-loading-screen {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(248, 251, 253, 0.94) 0%, rgba(237, 242, 246, 0.96) 100%);
  backdrop-filter: blur(12px);
}

.app-loading-card {
  width: min(100%, 420px);
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 28px 24px;
  border: 1px solid rgba(16, 32, 51, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 20px 48px rgba(16, 32, 51, 0.16);
  text-align: center;
}

.app-loading-spinner {
  width: 52px;
  height: 52px;
  border: 4px solid rgba(16, 32, 51, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: app-loading-spin 0.9s linear infinite;
}

.app-loading-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}

.app-loading-message {
  margin: 0;
  max-width: 30ch;
  color: var(--muted);
  line-height: 1.45;
}

.app-loading-retry {
  border: 1px solid rgba(16, 32, 51, 0.12);
  border-radius: 999px;
  background: white;
  color: var(--text);
  padding: 10px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.app-loading-retry:hover,
.app-loading-retry:focus-visible {
  border-color: rgba(16, 32, 51, 0.22);
  outline: none;
}

@keyframes app-loading-spin {
  to {
    transform: rotate(360deg);
  }
}

.app-shell:not(.detail-visible) {
  grid-template-columns: 1fr;
}

.app-shell.detail-visible.station-detail-visible {
  grid-template-columns: minmax(460px, 620px) minmax(0, 1fr);
}

.topbar,
.detail-panel,
.map-panel,
.install-links-bar,
.install-help-section,
.install-help-header {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.topbar {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  padding: 14px 18px;
}

h1 {
  margin: 0;
  font-size: clamp(1.2rem, 3.8vw, 2.35rem);
  line-height: 1.05;
  white-space: nowrap;
}

.train-picker {
  display: grid;
  gap: 6px;
  max-width: min(50vw, 520px);
}

.provider-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.provider-toggle input {
  margin: 0;
}

.manual-train-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  max-width: min(50vw, 520px);
}

.picker-label,
.panel-heading h2,
.schedule-label,
.kv dt {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.train-picker select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel-strong);
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
}

.manual-train-input,
.manual-train-submit {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel-strong);
  font: inherit;
}

.manual-train-input {
  min-width: 0;
  padding: 10px 12px;
  color: var(--text);
}

.manual-train-submit {
  padding: 10px 14px;
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.status-banner {
  max-width: min(50vw, 520px);
  padding: 10px 12px;
  border: 1px solid rgba(169, 13, 32, 0.18);
  border-radius: 14px;
  background: rgba(216, 29, 50, 0.08);
  color: var(--accent-deep);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
}

.install-links-bar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 10px 16px;
}

.install-links-link {
  color: var(--accent-deep);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.install-links-link:hover,
.install-links-link:focus-visible {
  text-decoration: underline;
}

.detail-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  overflow: hidden;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
}

.panel-heading h2 {
  margin: 0;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.share-link-button {
  border: 1px solid rgba(16, 32, 51, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  padding: 6px 10px;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.share-link-button:hover {
  border-color: rgba(16, 32, 51, 0.2);
  background: white;
}

.share-link-button:active {
  transform: translateY(1px);
}

.train-detail {
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  padding: 10px 12px 12px;
}

.empty-state {
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
}

.detail-header {
  display: grid;
  gap: 2px;
}

.detail-top {
  display: flex;
  justify-content: flex-start;
  align-items: start;
  gap: 12px;
}

.detail-number {
  font-size: 1.1rem;
  font-weight: 800;
}

.detail-route,
.detail-updated {
  font-size: 0.88rem;
}

.detail-updated {
  margin-left: auto;
  text-align: right;
}

.detail-activity-wrap {
  align-self: center;
}

.detail-activity {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 6.5rem;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.detail-activity-active {
  background: var(--activity-active-bg);
  color: var(--activity-active-text);
}

.detail-activity-scheduled {
  background: var(--activity-scheduled-bg);
  color: var(--activity-scheduled-text);
}

.detail-activity-complete {
  background: var(--activity-complete-bg);
  color: var(--activity-complete-text);
}

.detail-route,
.detail-updated,
.schedule-meta,
.kv dt,
.map-callout-route,
.map-callout-row span {
  color: var(--muted);
}

.kv {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.kv div {
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 14px;
  background: white;
  padding: 8px 10px;
}

.kv dd {
  margin: 4px 0 0;
  font-weight: 700;
  font-size: 0.95rem;
}

.detail-station-link,
.map-callout-station-button {
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  text-align: left;
  cursor: pointer;
}

.detail-station-link:hover,
.detail-station-link:focus-visible,
.map-callout-station-button:hover,
.map-callout-station-button:focus-visible {
  text-decoration: underline;
  outline: none;
}

.schedule-panel-heading {
  flex: 0 0 auto;
  margin-top: 2px;
}

.pill {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
}

.schedule-table-wrap {
  flex: 1 1 auto;
  min-height: 9.5rem;
  overflow: auto;
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 14px;
  background: white;
}

.schedule-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.83rem;
}

.schedule-table th,
.schedule-table td {
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.schedule-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(248, 251, 253, 0.98);
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.schedule-table-row td {
  border-bottom: 1px solid rgba(16, 32, 51, 0.06);
}

.schedule-table-row:last-child td {
  border-bottom: 0;
}

.schedule-station-cell {
  font-weight: 700;
}

.schedule-station-button {
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: inherit;
  text-align: left;
  cursor: pointer;
}

.schedule-station-button:hover,
.schedule-station-button:focus-visible {
  text-decoration: underline;
  outline: none;
}

.schedule-station-button-static {
  cursor: default;
}

.schedule-station-button-static:hover,
.schedule-station-button-static:focus-visible {
  text-decoration: none;
}

.schedule-status-cell {
  white-space: nowrap;
}

.schedule-table-row.visited {
  background: rgba(16, 32, 51, 0.05);
  color: rgba(16, 32, 51, 0.48);
}

.schedule-table-row.upcoming {
  background: rgba(216, 29, 50, 0.08);
}

.schedule-table-row.upcoming .schedule-station-cell,
.schedule-table-row.upcoming .schedule-status-cell {
  color: var(--accent-deep);
}

.station-detail-header {
  margin-bottom: 2px;
}

.station-address {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.25;
}

.station-address-button {
  display: block;
  width: 100%;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.station-address-button:hover,
.station-address-button:focus-visible {
  text-decoration: underline;
  outline: none;
}

.station-schedule-wrap {
  min-height: 12rem;
}

.station-schedule-table {
  font-size: 0.8rem;
  table-layout: fixed;
}

.station-schedule-table th,
.station-schedule-table td {
  padding: 7px 6px;
}

.station-schedule-table .station-train-col,
.station-schedule-table .station-train-cell {
  width: 8rem;
  min-width: 8rem;
  text-align: left;
}

.station-schedule-table .station-time-col,
.station-schedule-table .station-schedule-time-cell {
  width: 6.25rem;
  min-width: 6.25rem;
}

.station-schedule-table .station-next-col,
.station-schedule-table .station-next-cell,
.station-schedule-table .station-final-col,
.station-schedule-table .station-final-cell {
  width: 24%;
  word-break: break-word;
}

.station-schedule-time-cell {
  white-space: nowrap;
}

.station-time-primary {
  display: block;
  white-space: nowrap;
}

.station-time-offset {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.2;
  white-space: nowrap;
}

.station-train-link {
  display: block;
  width: 100%;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.station-train-link-active {
  color: var(--train-active);
}

.station-train-link-scheduled {
  color: var(--train-scheduled);
  font-weight: 700;
}

.station-train-link-static {
  cursor: default;
}

.station-train-link-static:hover,
.station-train-link-static:focus-visible {
  text-decoration: none;
}

.station-train-link:hover,
.station-train-link:focus-visible {
  text-decoration: underline;
  outline: none;
}

.station-direction-row th {
  padding: 8px 6px 5px;
  border-top: 1px solid color-mix(in srgb, var(--line) 86%, transparent);
}

.station-direction-cell {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
}

.station-direction-toggle {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: center;
  width: 100%;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  text-transform: inherit;
  cursor: pointer;
}

.station-direction-title {
  min-width: 0;
}

.station-direction-meta,
.station-direction-action {
  white-space: nowrap;
}

.station-direction-meta {
  color: var(--text);
  font-size: 0.64rem;
  letter-spacing: 0.04em;
}

.station-direction-action {
  color: var(--accent-deep);
  font-size: 0.66rem;
}

.station-direction-toggle:hover .station-direction-title,
.station-direction-toggle:focus-visible .station-direction-title {
  text-decoration: underline;
}

.station-direction-toggle:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent-deep) 45%, transparent);
  outline-offset: 2px;
}

.schedule-empty {
  padding: 16px 10px;
}

.schedule-comment {
  color: var(--accent-deep);
}

.map-panel {
  min-width: 0;
  padding: 12px;
  min-height: 0;
}

.app-shell:not(.detail-visible) .map-panel {
  grid-column: 1 / -1;
}

#map {
  width: 100%;
  height: 100%;
  min-height: 420px;
  border-radius: 14px;
}

.map-callout {
  min-width: 210px;
  padding: 0;
  color: var(--text);
  line-height: 1.2;
}

.map-callout-header {
  font-size: 0.88rem;
  font-weight: 800;
  padding: 2px 18px 2px 0;
}

.map-callout-header-button {
  width: 100%;
  border: 0;
  margin: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.map-callout-header-button:hover,
.map-callout-header-button:focus-visible {
  text-decoration: underline;
  outline: none;
}

.map-callout-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.76rem;
}

.map-callout-table td {
  padding: 2px 0;
  vertical-align: top;
}

.map-callout-key {
  color: var(--muted);
  padding-right: 8px;
  white-space: nowrap;
}

.map-callout-value {
  font-weight: 700;
}

.map-callout-station-button {
  display: inline;
}

.low-speed {
  color: #b91c1c;
}

.install-help-body {
  height: auto;
  min-height: 100%;
}

.install-help-shell {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.install-help-header {
  padding: 18px 22px;
}

.install-help-header h1 {
  margin-bottom: 8px;
}

.install-help-back {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent-deep);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.install-help-back:hover,
.install-help-back:focus-visible {
  text-decoration: underline;
}

.install-help-intro,
.install-help-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.install-help-section {
  overflow: hidden;
}

.install-help-section-body {
  padding: 16px 18px 18px;
}

.install-help-steps {
  margin: 0;
  padding-left: 1.4rem;
  color: var(--text);
  line-height: 1.6;
}

.install-help-ios-steps {
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

.install-help-step-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 18px;
  background: var(--panel-strong);
}

.install-help-step-number {
  color: var(--accent-deep);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.install-help-step-text {
  margin-top: 6px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
}

.install-help-step-image {
  width: 100%;
  max-width: 360px;
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(16, 32, 51, 0.12);
}

@media (max-width: 900px) {
  .app-shell {
    height: auto;
    min-height: calc(100vh - 24px);
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(320px, 46vh);
    gap: 12px;
  }

  .app-shell.detail-visible.station-detail-visible {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(320px, 46vh);
  }

  body {
    padding: 12px 0;
  }

  .topbar {
    align-items: stretch;
    padding: 12px 14px;
  }

  .train-picker {
    max-width: none;
  }

  .manual-train-form {
    max-width: none;
  }

  .status-banner {
    max-width: none;
    font-size: 0.84rem;
  }

  .detail-panel {
    min-height: 0;
  }

  .map-panel {
    padding: 10px;
  }

  h1 {
    font-size: clamp(1rem, 5vw, 1.45rem);
  }

  .panel-heading {
    padding: 8px 10px;
  }

  .panel-actions {
    flex-wrap: wrap;
    justify-content: end;
  }

  .install-links-bar {
    gap: 12px;
    padding: 9px 12px;
  }

  .install-links-link {
    font-size: 0.8rem;
  }

  .share-link-button {
    padding: 5px 8px;
    font-size: 0.74rem;
  }

  .train-detail {
    gap: 8px;
    padding: 8px 10px 10px;
  }

  .app-shell.station-detail-visible .train-detail {
    padding-left: 0;
    padding-right: 0;
  }

  .app-shell.station-detail-visible .station-detail-header {
    padding-left: 10px;
    padding-right: 10px;
  }

  .detail-top {
    gap: 8px;
  }

  .detail-number {
    font-size: 1rem;
  }

  .detail-route,
  .detail-updated,
  .kv dd {
    font-size: 0.84rem;
  }

  .detail-activity {
    min-width: 5.75rem;
    padding: 0.24rem 0.58rem;
    font-size: 0.67rem;
  }

  .station-address {
    font-size: 0.78rem;
  }

  .kv {
    gap: 6px;
    margin: 8px 0 10px;
  }

  .kv div {
    padding: 7px 8px;
  }

  .schedule-table-wrap {
    min-height: 8.75rem;
    max-height: 11rem;
  }

  .schedule-table {
    font-size: 0.77rem;
  }

  .schedule-table th,
  .schedule-table td {
    padding: 7px 8px;
  }

  .station-schedule-table {
    font-size: 0.73rem;
  }

  .station-schedule-table th,
  .station-schedule-table td {
    padding: 6px 1px;
  }

  .station-schedule-table .station-train-col,
  .station-schedule-table .station-train-cell {
    width: 6.2rem;
    min-width: 6.2rem;
  }

  .station-schedule-table .station-time-col,
  .station-schedule-table .station-schedule-time-cell {
    width: 5.2rem;
    min-width: 5.2rem;
  }

  .station-schedule-table .station-next-col,
  .station-schedule-table .station-next-cell,
  .station-schedule-table .station-final-col,
  .station-schedule-table .station-final-cell {
    width: 22%;
  }

  .station-time-offset {
    font-size: 0.66rem;
  }

  .station-direction-row th {
    padding: 7px 1px 4px;
  }

  .station-direction-cell {
    font-size: 0.64rem;
  }

  .station-direction-toggle {
    gap: 5px;
  }

  .station-direction-meta,
  .station-direction-action {
    font-size: 0.58rem;
  }

  .install-help-header,
  .install-help-section-body {
    padding-left: 14px;
    padding-right: 14px;
  }

  .install-help-step-card {
    padding: 12px;
  }

  #map {
    min-height: 300px;
  }
}