/*
 * Supported layout modes: only the current immersive/default layout is maintained.
 * Legacy alternate layout toggles were removed along with unused `layout-modern.css`.
 */
:root {
  color-scheme: light;
  --jr-green: #2f9e44;
  --jr-green-soft: rgba(47, 158, 68, 0.2);
  --bg-deep: #f4f8f5;
  --bg-overlay: rgba(255, 255, 255, 0.7);
  --glass: rgba(255, 255, 255, 0.75);
  --glass-strong: rgba(255, 255, 255, 0.92);
  --layer-medium: rgba(255, 255, 255, 0.85);
  --layer-soft: rgba(255, 255, 255, 0.6);
  --text-primary: #1f3b37;
  --text-muted: rgba(31, 59, 55, 0.6);
  --text-subtle: rgba(31, 59, 55, 0.35);
  --shadow-xl: 0 24px 48px rgba(31, 59, 55, 0.15);
  --shadow-soft: 0 18px 36px rgba(31, 59, 55, 0.12);
  --shadow-elevated: 0 12px 24px rgba(31, 59, 55, 0.15);
  --border-subtle: rgba(31, 59, 55, 0.08);
  --control-ghost: rgba(47, 158, 68, 0.12);
  --control-ghost-active: rgba(47, 158, 68, 0.25);
  --control-ghost-outline: rgba(47, 158, 68, 0.25);
  --surface-card-start: rgba(255, 255, 255, 0.92);
  --surface-card-end: rgba(215, 233, 225, 0.85);
  --surface-chip: rgba(255, 255, 255, 0.95);
  --surface-chip-secondary: rgba(221, 238, 229, 0.92);
  --surface-pill: rgba(255, 255, 255, 0.95);
  --surface-pill-accent: rgba(221, 238, 229, 0.92);
  --surface-floating: rgba(255, 255, 255, 0.95);
  --surface-floating-strong: rgba(255, 255, 255, 0.9);
  --overlay-gradient-start: rgba(255, 255, 255, 0.35);
  --overlay-gradient-end: rgba(244, 248, 245, 0.85);
  --map-line-color: rgba(47, 158, 68, 0.35);
  --map-dot-bg: rgba(255, 255, 255, 0.9);
  --map-label-bg: rgba(255, 255, 255, 0.95);
  --scrim-color: rgba(31, 59, 55, 0.25);
  --panel-shadow: 20px 0 45px rgba(31, 59, 55, 0.15);
  --pill-button-bg: var(--jr-green);
  --pill-button-text: #ffffff;
  --pill-button-shadow: 0 14px 28px rgba(47, 158, 68, 0.25);
  --pill-button-shadow-strong: 0 18px 32px rgba(47, 158, 68, 0.35);
  --pill-button-ghost-bg: rgba(255, 255, 255, 0.6);
  --pill-button-ghost-border: var(--border-subtle);
  --audio-pill-shadow: 0 14px 28px rgba(47, 158, 68, 0.25);
  --audio-pill-shadow-strong: 0 18px 32px rgba(47, 158, 68, 0.35);
  --transition-fast: 200ms ease;
  --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

body.theme-dark {
  color-scheme: dark;
  background: radial-gradient(circle at top, rgba(47, 158, 68, 0.18), transparent 60%),
    linear-gradient(180deg, #0f201b 0%, #020a07 100%);
  --bg-deep: #020a07;
  --bg-overlay: rgba(10, 23, 20, 0.65);
  --glass: rgba(18, 30, 27, 0.82);
  --glass-strong: rgba(18, 30, 27, 0.9);
  --layer-medium: rgba(16, 26, 24, 0.85);
  --layer-soft: rgba(16, 26, 24, 0.6);
  --text-primary: #e6f2ed;
  --text-muted: rgba(230, 242, 237, 0.65);
  --text-subtle: rgba(230, 242, 237, 0.35);
  --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.5);
  --shadow-soft: 0 18px 36px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 12px 24px rgba(0, 0, 0, 0.5);
  --border-subtle: rgba(230, 242, 237, 0.12);
  --control-ghost: rgba(47, 158, 68, 0.28);
  --control-ghost-active: rgba(47, 158, 68, 0.5);
  --control-ghost-outline: rgba(47, 158, 68, 0.5);
  --surface-card-start: rgba(24, 40, 35, 0.95);
  --surface-card-end: rgba(18, 32, 27, 0.9);
  --surface-chip: rgba(26, 42, 36, 0.95);
  --surface-chip-secondary: rgba(20, 34, 29, 0.92);
  --surface-pill: rgba(24, 40, 35, 0.95);
  --surface-pill-accent: rgba(18, 32, 28, 0.92);
  --surface-floating: rgba(24, 40, 35, 0.95);
  --surface-floating-strong: rgba(24, 40, 35, 0.9);
  --overlay-gradient-start: rgba(15, 32, 27, 0.65);
  --overlay-gradient-end: rgba(7, 20, 16, 0.88);
  --map-line-color: rgba(108, 191, 133, 0.55);
  --map-dot-bg: rgba(18, 30, 27, 0.95);
  --map-label-bg: rgba(24, 40, 35, 0.95);
  --scrim-color: rgba(0, 0, 0, 0.55);
  --panel-shadow: 20px 0 45px rgba(0, 0, 0, 0.45);
  --pill-button-shadow: 0 14px 28px rgba(0, 0, 0, 0.5);
  --pill-button-shadow-strong: 0 18px 32px rgba(0, 0, 0, 0.6);
  --pill-button-ghost-bg: rgba(24, 40, 35, 0.8);
  --pill-button-ghost-border: rgba(230, 242, 237, 0.16);
  --audio-pill-shadow: 0 14px 28px rgba(0, 0, 0, 0.5);
  --audio-pill-shadow-strong: 0 18px 32px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', 'Roboto', 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background: radial-gradient(circle at top, rgba(47, 158, 68, 0.12), transparent 60%),
    linear-gradient(180deg, #f9fdfb 0%, var(--bg-deep) 100%);
  overflow: hidden;
}

button {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
[role='button']:focus-visible {
  outline: 2px solid var(--jr-green);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  isolation: isolate;
}

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 2rem;
  gap: 1.25rem;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: var(--layer-medium);
  box-shadow: var(--shadow-elevated);
}

.top-bar__group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.search-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: var(--glass);
  box-shadow: inset 0 0 0 1px var(--border-subtle);
}

.search-wrapper input[type='search'] {
  background: transparent;
  border: none;
  color: var(--text-primary);
  padding: 0.35rem 0.5rem;
  width: min(240px, 28vw);
}

.search-wrapper input::placeholder {
  color: var(--text-muted);
}

.ghost-button {
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  background: var(--control-ghost);
  color: var(--text-primary);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.ghost-button:hover,
.ghost-button[aria-pressed='true'],
.ghost-button[aria-expanded='true'] {
  background: var(--control-ghost-active);
  box-shadow: 0 0 0 1px var(--control-ghost-outline);
}

.ghost-button:active {
  transform: scale(0.97);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: var(--glass);
  box-shadow: inset 0 0 0 1px var(--border-subtle);
}

.volume-control__icon {
  font-size: 0.95rem;
  filter: drop-shadow(0 2px 4px rgba(31, 59, 55, 0.25));
}

.volume-control__slider {
  appearance: none;
  width: clamp(120px, 12vw, 160px);
  height: 0.35rem;
  border-radius: 999px;
  --volume-fill: 0.8;
  background: linear-gradient(
      90deg,
      rgba(47, 158, 68, 0.85) 0%,
      rgba(47, 158, 68, 0.85) calc(var(--volume-fill) * 100%),
      rgba(47, 158, 68, 0.25) calc(var(--volume-fill) * 100%),
      rgba(47, 158, 68, 0.25) 100%
    );
  outline: none;
  position: relative;
}

.volume-control__slider::-webkit-slider-thumb {
  appearance: none;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid rgba(47, 158, 68, 0.9);
  box-shadow: 0 6px 14px rgba(47, 158, 68, 0.35);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.volume-control__slider::-moz-range-thumb {
  width: 1.1rem;
  height: 1.1rem;
  border: 2px solid rgba(47, 158, 68, 0.9);
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 6px 14px rgba(47, 158, 68, 0.35);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.volume-control__slider::-webkit-slider-thumb:active,
.volume-control__slider::-moz-range-thumb:active {
  transform: scale(0.92);
}

.volume-control__slider::-webkit-slider-runnable-track,
.volume-control__slider::-moz-range-track {
  height: 0.35rem;
  border-radius: 999px;
  background: transparent;
}

.station-viewport {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 5rem 2.5rem 7rem;
  overflow: hidden;
}

.station-background {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: saturate(0.85) brightness(0.9) blur(3px);
  opacity: 0;
  transform: scale(1.08);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

body.theme-dark .station-background {
  filter: saturate(0.8) brightness(0.55) blur(3px);
}

.station-background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--overlay-gradient-start), var(--overlay-gradient-end));
}

.station-background.is-active {
  opacity: 1;
}

.app[data-motion='forward'] .station-background {
  transform: scale(1.12) translateY(-30px);
}

.app[data-motion='backward'] .station-background {
  transform: scale(1.12) translateY(30px);
}

.station-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at center, var(--bg-overlay), var(--bg-deep));
}

.station-preview {
  position: absolute;
  width: 100%;
  text-align: center;
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-subtle);
  font-weight: 600;
  pointer-events: none;
  opacity: 0.4;
  filter: blur(1px);
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.station-preview--previous {
  top: 2.5rem;
}

.station-preview--next {
  bottom: 2.8rem;
}

.app[data-motion='forward'] .station-preview--previous,
.app[data-motion='forward'] .station-preview--next {
  transform: translateY(-20px);
  opacity: 0.2;
}

.app[data-motion='backward'] .station-preview--previous,
.app[data-motion='backward'] .station-preview--next {
  transform: translateY(20px);
  opacity: 0.2;
}

.station-direction {
  position: absolute;
  top: 50%;
  right: clamp(1rem, 6vw, 3rem);
  transform: translateY(-50%);
  color: var(--text-subtle);
  opacity: 0.55;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 6;
  text-align: right;
}

.station-direction__rail {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(1.4rem, 1.8rem);
  column-gap: 1.25rem;
  row-gap: 1.35rem;
  align-items: center;
}

.station-direction__item {
  grid-column: 1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.station-direction__indicator {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: stretch;
  min-width: 1.4rem;
  min-height: calc(var(--direction-travel, 0px) + 3rem);
  pointer-events: none;
}

.station-direction__line {
  position: relative;
  width: 0.28rem;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(47, 158, 68, 0.35), rgba(47, 158, 68, 0.15));
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.station-direction__line::before {
  content: '';
  position: absolute;
  inset: -120% 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.9) 35%,
    rgba(47, 158, 68, 0.9) 55%,
    rgba(255, 255, 255, 0.85) 75%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 100% 200%;
}

.station-direction__line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.45), transparent 70%);
  mix-blend-mode: screen;
  opacity: 0.65;
}

.station-direction__shuttle {
  position: absolute;
  top: 0;
  left: 50%;
  width: 1.4rem;
  height: 1.4rem;
  transform: translate(-50%, var(--shuttle-offset, 0));
  display: flex;
  align-items: center;
  justify-content: center;
}

.station-direction__shuttle::before {
  content: '';
  width: 0.85rem;
  height: 1.15rem;
  background: linear-gradient(180deg, #c6ff95 0%, #2f9e44 55%, #0f5f2a 100%);
  clip-path: polygon(50% 100%, 0 42%, 30% 42%, 30% 0, 70% 0, 70% 42%, 100% 42%);
  filter: drop-shadow(0 4px 8px rgba(15, 56, 36, 0.35));
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.app[data-direction='forward'] .station-direction__shuttle::before {
  transform: rotate(0deg);
}

.app[data-direction='backward'] .station-direction__shuttle::before {
  transform: rotate(180deg);
}

.station-direction__text {
  display: grid;
  gap: 0.15rem;
}

.station-direction__label {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.station-direction__name {
  font-size: 0.9rem;
  color: var(--text-primary);
  letter-spacing: 0.12em;
}

.station-content {
  position: relative;
  z-index: 5;
  max-width: min(760px, 90vw);
  text-align: center;
  display: grid;
  gap: 2rem;
  transition: transform var(--transition-slow);
}

.app[data-motion='forward'] .station-content {
  transform: translateY(38px);
}

.app[data-motion='backward'] .station-content {
  transform: translateY(-38px);
}

.station-name__jp {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-size: clamp(3.2rem, 8vw, 5.8rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  display: block;
  color: var(--text-primary);
  text-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
}

.station-name__en {
  display: block;
  font-size: clamp(1.75rem, 3.5vw, 2.8rem);
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.station-info {
  margin: 0 auto;
  padding: 1.8rem 2.25rem;
  border-radius: 1.75rem;
  background: linear-gradient(135deg, var(--surface-card-start), var(--surface-card-end));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-xl);
}

.station-info__heading {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.station-info p {
  margin: 0;
  line-height: 1.7;
  color: var(--text-primary);
}

.transfer-lines {
  display: grid;
  gap: 0.85rem;
}

.transfer-lines__heading {
  margin: 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.transfer-lines__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.transfer-lines__empty {
  margin: 0;
  color: var(--text-muted);
  font-style: italic;
}

.transfer-chip {
  position: relative;
  display: grid;
  place-items: center;
  width: 4.2rem;
  height: 4.2rem;
  padding: 0;
  border-radius: 1.4rem;
  background: var(--surface-floating);
  box-shadow: inset 0 0 0 1px var(--border-subtle), 0 8px 16px rgba(31, 59, 55, 0.12);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  overflow: visible;
}

.transfer-chip__icon {
  width: 3.1rem;
  height: 3.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.transfer-chip__icon svg,
.transfer-chip__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.transfer-chip__tooltip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.65rem);
  transform: translate(-50%, 8px);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: var(--surface-floating);
  color: var(--text-primary);
  font-size: 0.75rem;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 12px 24px rgba(31, 59, 55, 0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.transfer-chip:hover,
.transfer-chip:focus-visible {
  transform: translateY(-6px);
  background: var(--surface-floating-strong);
  box-shadow: inset 0 0 0 1px var(--jr-green-soft), 0 14px 28px rgba(31, 59, 55, 0.16);
}

.transfer-chip:hover .transfer-chip__tooltip,
.transfer-chip:focus-visible .transfer-chip__tooltip,
.transfer-chip.is-tooltip-visible .transfer-chip__tooltip {
  opacity: 1;
  transform: translate(-50%, 0);
}

.transfer-chip[data-tooltip-position='below'] .transfer-chip__tooltip {
  top: calc(100% + 0.65rem);
  bottom: auto;
  transform: translate(-50%, -8px);
}

.transfer-chip[data-tooltip-position='below']:hover .transfer-chip__tooltip,
.transfer-chip[data-tooltip-position='below']:focus-visible .transfer-chip__tooltip,
.transfer-chip[data-tooltip-position='below'].is-tooltip-visible .transfer-chip__tooltip {
  transform: translate(-50%, 0);
}

.audio-pill {
  position: fixed;
  bottom: clamp(1.5rem, 5vw, 3rem);
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  gap: 0.8rem;
  padding: 1rem 1.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--surface-pill), var(--surface-pill-accent));
  box-shadow: var(--audio-pill-shadow);
  backdrop-filter: blur(24px);
  z-index: 25;
  width: min(520px, 92vw);
}

.audio-pill__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
}

.pill-button {
  width: 54px;
  height: 54px;
  border-radius: 999px;
  background: var(--pill-button-bg);
  color: var(--pill-button-text);
  font-weight: 700;
  font-size: 1.1rem;
  display: grid;
  place-items: center;
  box-shadow: var(--pill-button-shadow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.pill-button--wide {
  min-width: 150px;
  padding: 0 1.2rem;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

.pill-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--pill-button-shadow-strong);
}

.pill-button:active {
  transform: scale(0.95);
}

.pill-button[aria-pressed='true'] {
  background: var(--surface-floating);
  color: var(--text-primary);
}

.pill-button--map {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0 1.1rem;
  width: auto;
  background: var(--pill-button-bg);
  color: var(--pill-button-text);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pill-button__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
}

.pill-button__icon circle {
  stroke: currentColor;
}

.audio-pill__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0 0.5rem;
  text-align: center;
}

.track-label {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.map-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-columns: auto;
  pointer-events: none;
  opacity: 0;
  transition: opacity 300ms ease;
  z-index: 40;
}

.map-overlay.is-visible {
  opacity: 1;
  pointer-events: all;
}

.map-overlay__scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim-color);
}

.map-overlay__panel {
  position: relative;
  width: min(420px, 86vw);
  height: 100vh;
  background: linear-gradient(180deg, var(--glass-strong), var(--surface-pill-accent));
  box-shadow: var(--panel-shadow);
  padding: 2rem 2.2rem;
  transform: translateX(-100%);
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.map-overlay.is-visible .map-overlay__panel {
  transform: translateX(0);
}

.map-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.map-overlay__header h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.map-overlay__line {
  flex: 1;
  position: relative;
  overflow-y: auto;
  border-radius: 1.75rem;
  background: var(--glass);
  box-shadow: inset 0 0 0 1px var(--border-subtle);
  padding: 2.5rem 0.5rem;
  scroll-behavior: smooth;
  overflow-x: hidden;
  scrollbar-width: none;
}

.map-overlay__line::-webkit-scrollbar {
  display: none;
}

#mapLine {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 3rem 0;
}

#mapLine::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  border-radius: 999px;
  background: var(--map-line-color);
}

.map-node {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  gap: 0.5rem;
  text-align: center;
  width: 100%;
  background: none;
  color: var(--text-muted);
}

.map-node::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 4px solid var(--map-line-color);
  background: var(--map-dot-bg);
  transition: transform 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.map-node::after {
  content: '';
  position: absolute;
  top: -1.9rem;
  bottom: -1.9rem;
  left: 50%;
  width: 4px;
  transform: translateX(-50%);
  background: var(--map-line-color);
  z-index: -1;
  opacity: 0.6;
}

.map-node:first-child::after {
  top: 50%;
}

.map-node:last-child::after {
  bottom: 50%;
}

.map-node__label {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--map-label-bg);
  box-shadow: var(--shadow-elevated);
  color: var(--text-primary);
  opacity: 1;
  transform: none;
  transition: transform 220ms ease;
}

.map-node__label span:first-child {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.map-node__label span:last-child {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.map-node:hover::before,
.map-node:focus-visible::before {
  transform: scale(1.35);
  border-color: var(--jr-green);
  box-shadow: 0 0 18px rgba(47, 158, 68, 0.35);
}

.map-node:hover .map-node__label,
.map-node:focus-visible .map-node__label,
.map-node.is-active .map-node__label {
  transform: translateY(-2px);
}

.map-node.is-active::before {
  border-color: var(--jr-green);
  box-shadow: 0 0 0 8px rgba(47, 158, 68, 0.15), 0 0 32px rgba(47, 158, 68, 0.2);
  animation: halo 2.6s ease-in-out infinite;
}

@keyframes halo {
  0%,
  100% {
    box-shadow: 0 0 0 8px rgba(47, 158, 68, 0.15), 0 0 32px rgba(47, 158, 68, 0.2);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(47, 158, 68, 0.25), 0 0 48px rgba(47, 158, 68, 0.25);
  }
}

@media (max-width: 1024px) {
  .top-bar {
    flex-wrap: wrap;
    padding: 0.75rem 1.5rem;
  }

  .top-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.75rem;
  }

  .volume-control {
    width: 100%;
    justify-content: center;
  }

  .volume-control__slider {
    width: min(240px, 60vw);
  }

  .search-wrapper input[type='search'] {
    width: min(220px, 45vw);
  }
}

@media (max-width: 768px) {
  body {
    overflow: hidden;
  }

  .top-actions {
    gap: 0.5rem;
  }

  .volume-control {
    order: 5;
    justify-content: space-between;
    padding: 0.5rem 0.8rem;
  }

  .volume-control__slider {
    width: 100%;
  }

  .station-viewport {
    padding: 5rem 1.5rem 9.5rem;
  }

  .station-info {
    padding: 1.4rem 1.5rem;
  }

  .transfer-lines__list {
    gap: 0.6rem;
  }

  .transfer-chip {
    width: 3.6rem;
    height: 3.6rem;
    border-radius: 1.1rem;
  }

  .transfer-chip__icon {
    width: 2.7rem;
    height: 2.7rem;
  }

  .audio-pill {
    width: calc(100vw - 2.5rem);
    padding: 0.9rem 1.1rem;
  }

  .audio-pill__controls {
    justify-content: space-between;
  }

  .pill-button {
    width: 50px;
    height: 50px;
  }

  .pill-button--wide {
    min-width: 0;
    padding: 0 0.9rem;
  }

  .station-direction {
    display: none;
  }

  .pill-button--map {
    padding: 0 0.9rem;
    font-size: 0.85rem;
  }

  .map-overlay__panel {
    width: min(360px, 92vw);
  }
}

@media (max-width: 520px) {
  .top-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .top-bar__group {
    width: 100%;
    justify-content: space-between;
  }

  .search-wrapper {
    flex: 1;
  }

  .station-name__jp {
    font-size: clamp(2.6rem, 11vw, 4.1rem);
  }

  .station-name__en {
    letter-spacing: 0.2em;
  }

  .audio-pill__meta {
    flex-direction: column;
    align-items: center;
  }
}