@layer components {
  .course-overview {
    min-inline-size: 0;
  }

  .course-overview__elevation {
    min-block-size: 340px;
    min-inline-size: 0;
  }

  .course-overview__map {
    border: 1px solid var(--color-ink-lighter);
    border-radius: var(--radius);
    box-sizing: border-box;
    block-size: 100%;
    min-inline-size: 0;
    position: relative;
    overflow: hidden;
    z-index: 0; /* Create stacking context to keep map controls below bottom bar */
  }

  .course-overview__viewer {
    display: grid;
    gap: 0.75rem;
  }

  .course-overview__tabs {
    display: inline-flex;
    gap: 0.35rem;
    padding: 0.25rem;
    border: 1px solid color-mix(in srgb, var(--color-ink-lighter) 72%, transparent);
    border-radius: 999px;
    background: color-mix(in srgb, var(--color-canvas) 92%, var(--color-ink-lightest) 8%);
    inline-size: fit-content;
    max-inline-size: 100%;
  }

  .course-overview__tab {
    align-items: center;
    appearance: none;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--color-ink-subtle);
    cursor: pointer;
    display: inline-flex;
    font-size: var(--text-small);
    font-weight: 700;
    justify-content: center;
    line-height: 1;
    padding: 0.7rem 1rem;
    transition: background 140ms ease, color 140ms ease, box-shadow 140ms ease;
  }

  .course-overview__tab:hover,
  .course-overview__tab:focus-visible {
    color: var(--color-ink);
    outline: none;
  }

  .course-overview__tab--active {
    background: color-mix(in srgb, var(--color-link) 86%, white 14%);
    box-shadow: 0 8px 18px oklch(var(--lch-black) / 0.12);
    color: white;
  }

  .course-overview__viewer-panel {
    block-size: clamp(22rem, 42vw, 30rem);
  }

  .course-overview__viewer-panel[hidden] {
    display: none;
  }

  .course-overview__terrain {
    border: 1px solid var(--color-ink-lighter);
    border-radius: var(--radius);
    box-sizing: border-box;
    block-size: 100%;
    min-inline-size: 0;
    overflow: hidden;
    position: relative;
    background:
      radial-gradient(circle at 15% 18%, color-mix(in srgb, #f1d6ad 45%, transparent) 0%, transparent 34%),
      linear-gradient(180deg, #f7f0e4 0%, #eee4d4 100%);
  }

  .course-overview__terrain--with-controls {
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-ink-lighter) 45%, transparent);
  }

  .course-overview__terrain canvas {
    display: block;
    inline-size: 100%;
    block-size: 100%;
  }

  .terrain-viewer__controls {
    position: absolute;
    inset: 0.8rem auto auto 0.8rem;
    z-index: 3;
    display: grid;
    gap: 0.45rem;
    min-inline-size: 11rem;
    padding: 0.65rem;
    border: 1px solid color-mix(in srgb, var(--color-canvas) 35%, var(--color-ink-lighter));
    border-radius: 0.9rem;
    background: color-mix(in srgb, var(--color-canvas) 82%, transparent);
    backdrop-filter: blur(14px);
    box-shadow: 0 20px 36px oklch(var(--lch-black) / 0.12);
  }

  .terrain-viewer__title {
    color: var(--color-ink);
    font-size: var(--text-x-small);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .terrain-viewer__mode-group,
  .terrain-viewer__provider-group,
  .terrain-viewer__tool-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .terrain-viewer__provider-group {
    padding-bottom: 0.1rem;
    border-bottom: 1px solid color-mix(in srgb, var(--color-ink-lighter) 55%, transparent);
  }

  .terrain-viewer__chip {
    appearance: none;
    border: 1px solid color-mix(in srgb, var(--color-ink-lighter) 75%, transparent);
    border-radius: 999px;
    background: color-mix(in srgb, var(--color-canvas) 88%, transparent);
    color: var(--color-ink);
    cursor: pointer;
    font-size: var(--text-x-small);
    font-weight: 700;
    line-height: 1;
    padding: 0.45rem 0.7rem;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
  }

  .terrain-viewer__chip:hover {
    transform: translateY(-1px);
  }

  .terrain-viewer__chip.is-active {
    background: color-mix(in srgb, var(--color-link) 88%, white 12%);
    border-color: color-mix(in srgb, var(--color-link) 55%, white 45%);
    color: white;
  }

  .terrain-viewer__hint {
    border-radius: 999px;
    background: color-mix(in srgb, var(--color-link) 12%, var(--color-canvas) 88%);
    color: var(--color-ink);
    font-size: var(--text-x-small);
    font-weight: 700;
    line-height: 1;
    padding: 0.45rem 0.7rem;
    white-space: nowrap;
  }

  .terrain-viewer__attribution {
    position: absolute;
    inset: auto 0.8rem 0.8rem auto;
    z-index: 3;
    box-sizing: border-box;
    inline-size: fit-content;
    max-inline-size: min(26rem, calc(100% - 1.6rem));
    padding: 0.45rem 0.6rem;
    border-radius: 0.7rem;
    background: color-mix(in srgb, var(--color-canvas) 84%, transparent);
    color: var(--color-ink-subtle);
    font-size: 0.68rem;
    line-height: 1.35;
    text-align: right;
    white-space: normal;
    overflow-wrap: anywhere;
    backdrop-filter: blur(12px);
  }

  .course-overview__terrain--loading,
  .course-overview__terrain--fallback {
    align-items: center;
    color: var(--color-ink-subtle);
    display: flex;
    font-size: var(--text-small);
    justify-content: center;
    padding: 1rem;
    text-align: center;
  }

  .course-overview__terrain--fallback {
    background: color-mix(in srgb, var(--color-canvas) 82%, #f1d6ad 18%);
    color: var(--color-ink);
    font-weight: 700;
    text-shadow: 0 1px 0 color-mix(in srgb, white 70%, transparent);
  }

  .terrain-viewer__loading {
    display: grid;
    gap: 0.35rem;
    max-inline-size: 24rem;
  }

  .terrain-viewer__loading-title {
    color: var(--color-ink);
    font-size: var(--text-small);
    font-weight: 700;
  }

  .terrain-viewer__loading-detail {
    font-size: var(--text-x-small);
    line-height: 1.5;
  }

  @media (max-width: 640px) {
    .course-overview__viewer-panel {
      block-size: 24rem;
    }

    .course-overview__tabs {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      inline-size: 100%;
    }

    .terrain-viewer__controls {
      inset: 0.6rem auto auto 0.6rem;
      min-inline-size: 9.5rem;
      padding: 0.55rem;
    }

    .terrain-viewer__attribution {
      inset: auto 0.6rem 0.6rem 0.6rem;
      max-inline-size: none;
      text-align: left;
    }
  }

  .course-overview__gesture-hint {
    --hint-bg: color-mix(in srgb, var(--color-canvas) 88%, var(--color-ink-lightest) 12%);
    --hint-border: color-mix(in srgb, var(--color-ink-lighter) 70%, transparent);

    position: absolute;
    inset: auto 0.75rem 0.75rem auto;
    padding: 0.45rem 0.65rem;
    border-radius: 0.65rem;
    background: var(--hint-bg);
    border: 1px solid var(--hint-border);
    box-shadow: 0 10px 24px oklch(var(--lch-black) / 0.08);
    font-size: var(--text-x-small);
    color: var(--color-ink);
    display: grid;
    gap: 0.15rem;
    pointer-events: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 140ms ease, transform 140ms ease;
    z-index: 4;
  }

  .course-overview__gesture-hint.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .gesture-hint__line {
    display: none;
    white-space: nowrap;
  }

  .course-overview__gesture-hint[data-mode="desktop"] .gesture-hint__line--desktop,
  .course-overview__gesture-hint[data-mode="mobile"] .gesture-hint__line--mobile {
    display: block;
  }

  .course-overview__gesture-hint:not([data-mode]) .gesture-hint__line {
    display: block;
  }

  /* Elevation profile gesture hint */
  .elevation-profile__gesture-hint {
    --hint-bg: color-mix(in srgb, var(--color-canvas) 88%, var(--color-ink-lightest) 12%);
    --hint-border: color-mix(in srgb, var(--color-ink-lighter) 70%, transparent);

    position: absolute;
    inset: auto 0.75rem 0.75rem auto;
    padding: 0.45rem 0.65rem;
    border-radius: 0.65rem;
    background: var(--hint-bg);
    border: 1px solid var(--hint-border);
    box-shadow: 0 10px 24px oklch(var(--lch-black) / 0.08);
    font-size: var(--text-x-small);
    color: var(--color-ink);
    display: grid;
    gap: 0.15rem;
    pointer-events: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 140ms ease, transform 140ms ease;
    z-index: 4;
  }

  .elevation-profile__gesture-hint.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .elevation-profile__gesture-hint .gesture-hint__line {
    display: none;
    white-space: nowrap;
  }

  .elevation-profile__gesture-hint[data-mode="desktop"] .gesture-hint__line--desktop,
  .elevation-profile__gesture-hint[data-mode="mobile"] .gesture-hint__line--mobile {
    display: block;
  }

  .elevation-profile__gesture-hint:not([data-mode]) .gesture-hint__line {
    display: block;
  }

  .station-profile-card--plan .station-profile-card__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    justify-content: center;
    margin-top: 3px;
    width: 100%;
  }

  .station-profile-card--plan .station-profile-card__badge {
    align-items: center;
    background: color-mix(in srgb, var(--color-link) 10%, white);
    border: 1px solid color-mix(in srgb, var(--color-link) 24%, #cbd5e1);
    border-radius: 999px;
    color: #0f172a;
    display: inline-flex;
    font-size: 7px;
    font-weight: 600;
    line-height: 1.15;
    padding: 2px 6px;
    white-space: nowrap;
  }

  .course-overview__plan-popup {
    display: grid;
    gap: 0.25rem;
    font-size: var(--text-x-small);
    min-inline-size: 12rem;
  }

  .course-overview__plan-popup strong {
    font-size: var(--text-small);
  }

  .course-overview__plan-popup ul {
    margin: 0;
    padding-inline-start: 1rem;
  }

  .course-overview__plan-popup-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .course-overview__plan-popup-badges span {
    background: color-mix(in srgb, var(--color-link) 10%, white);
    border: 1px solid color-mix(in srgb, var(--color-link) 28%, #d1d5db);
    border-radius: 999px;
    color: #111827;
    font-size: var(--text-x-small);
    font-weight: 600;
    padding: 0.1rem 0.4rem;
  }
}