/**
 * World Theme
 */

@layer theme {
  :root {
    /* Typography */
    --font-family-base:
      'Inter', 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI',
      'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;

    /* Font size overrides (mobile-first) */
    --f4: 1rem;
    --f5: 0.875rem;
    --f6: 0.75rem;
    --f7: 0.625rem;

    /* Spacing */
    --s5: 2rem;
    --s6: 3rem;

    /* Border radius */
    --br-sm: 6px;
    --br-base: 10px;
    --br-lg: 20px;
    --br-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    /* Primary: steel blue (from manifest theme_color #6baed6) */
    --primaryH: 207;
    --primaryS: 55%;
    --primaryL: 62%;

    /* Border: lighter shade of primary */
    --borderH: 207;
    --borderS: 55%;
    --borderL: 80%;
  }

  :root {
    --header-height: 56px;
    --footer-height: 64px;
    --main-padding: 0;
  }

  html {
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  /* ── Map page height chain ──────────────────────────────────────────────── */

  /* Fix body height when map is visible so map fills remaining space */
  body:has(r-home) {
    height: 100dvh;
    overflow: hidden;
  }

  body:has(r-home) > main {
    overflow: hidden;
  }

  r-home {
    display: block;
    height: 100%;
    overflow: hidden;
  }

  r-home #map {
    height: 100%;
    background-color: #6baed6;
  }

  /* ── Header ───────────────────────────────────────────────────────────── */

  header {
    display: flex;
    align-items: center;
    gap: var(--s2);
    height: var(--header-height);
    padding: 0 var(--container-padding);
    border-bottom: 1px solid currentColor;
  }

  header strong {
    flex: 1;
    font-size: var(--f4);
    font-weight: var(--fw-semibold);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  #header-back[hidden] {
    display: none;
  }

  #header-back {
    display: flex;
    align-items: center;
    gap: var(--s1);
    font-size: var(--f6);
    font-weight: var(--fw-medium);
    color: var(--primary);
    text-decoration: none;
    padding: var(--s1) var(--s2);
    border-radius: var(--br-sm);
    white-space: nowrap;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
  }

  #header-back:hover {
    opacity: 0.7;
  }

  /* ── Fixed bottom tab bar ──────────────────────────────────────────────── */

  footer[fixed] {
    padding: 0;
    height: var(--footer-height);
  }

  ui-bottom-bar img {
    width: 24px;
    height: 24px;
  }

  /* ── Page host elements ────────────────────────────────────────────────── */

  r-search,
  r-settings,
  r-settings-downloads,
  r-settings-about,
  r-bookmarks {
    display: block;
    padding: var(--s4) var(--s3);
    max-width: 600px;
    margin: 0 auto;
    box-sizing: border-box;
  }

  /* ── Generic settings sections ──────────────────────────────────────────── */

  r-settings section,
  r-settings-downloads section,
  r-settings-about section {
    margin-bottom: var(--s5);
  }

  r-settings h2,
  r-settings-downloads h2,
  r-settings-about h2 {
    font-size: var(--f4);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--s3);
  }

  r-settings section > p,
  r-settings-downloads section > p,
  r-settings-about section > p {
    opacity: 0.6;
    margin-bottom: var(--s3);
    font-size: var(--f5);
  }

  /* ── Settings nav links (to sub-pages) ────────────────────────────────── */

  .settings-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--s2);
  }

  .settings-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s3);
    border: 1px solid currentColor;
    border-radius: var(--br-base);
    text-decoration: none;
    color: inherit;
    font-weight: var(--fw-medium);
    font-size: var(--f5);
    transition: opacity var(--transition-fast);
  }

  .settings-nav-link:hover {
    opacity: 0.7;
  }

  .settings-nav-link-meta {
    font-size: var(--f6);
    opacity: 0.5;
    font-weight: var(--fw-normal);
    margin-top: 2px;
  }

  /* ── Data actions (import/export) ────────────────────────────────────── */

  .action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--s2);
    padding: var(--s3);
    border: 1px solid currentColor;
    border-radius: var(--br-base);
    text-decoration: none;
    color: inherit;
    font-weight: var(--fw-medium);
    transition: opacity var(--transition-base);
    width: 100%;
    box-sizing: border-box;
    background: transparent;
    font-size: var(--f5);
  }

  .action:hover {
    opacity: 0.7;
    transform: none;
  }

  .settings-data-actions {
    display: flex;
    gap: var(--s3);
  }

  .settings-data-status {
    margin-top: var(--s3);
    font-size: var(--f6);
    opacity: 0.8;
  }

  .settings-data-status--error {
    color: var(--error);
  }

  /* ── Downloads page ─────────────────────────────────────────────────────── */

  .tile-list {
    display: flex;
    flex-direction: column;
    gap: var(--s2);
  }

  .tile-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s3);
    padding: var(--s3);
    border: 1px solid currentColor;
    border-radius: var(--br-base);
  }

  .tile-item-info {
    flex: 1;
    min-width: 0;
  }

  .tile-item-name {
    font-weight: var(--fw-semibold);
    font-size: var(--f5);
    display: block;
  }

  .tile-item-meta {
    font-size: var(--f6);
    opacity: 0.6;
    margin-top: 2px;
  }

  .tile-item-action {
    display: flex;
    align-items: center;
    gap: var(--s2);
    flex-shrink: 0;
  }

  .tile-status-cached {
    font-size: var(--f6);
    font-weight: var(--fw-medium);
    color: var(--success);
    white-space: nowrap;
  }

  /* ── Search page ────────────────────────────────────────────────────────── */

  .search-input-wrap {
    margin-bottom: var(--s3);
  }

  .search-input-wrap input[type='search'] {
    width: 100%;
    padding: var(--s2) var(--s3);
    border-radius: var(--br-full);
    font-size: var(--f5);
    box-sizing: border-box;
    margin: 0;
  }

  .search-section-title {
    font-size: var(--f6);
    font-weight: var(--fw-semibold);
    opacity: 0.45;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: var(--s3) 0 var(--s1) 0;
    padding: 0;
  }

  .search-history-list {
    display: flex;
    flex-direction: column;
    gap: var(--s2);
  }

  .search-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s3) var(--s3);
    gap: var(--s3);
    cursor: pointer;
    background: transparent;
    border: 1px solid currentColor;
    border-radius: var(--br-base);
    color: inherit;
    text-align: left;
    font-size: var(--f5);
    width: 100%;
    min-width: 0;
    transition: opacity var(--transition-fast);
  }

  .search-history-item:hover {
    opacity: 0.6;
    transform: none;
  }

  .search-history-item > span {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .search-history-item > img {
    flex-shrink: 0;
    opacity: 0.35;
  }

  .search-empty {
    padding: var(--s5) var(--s3);
    text-align: center;
    opacity: 0.5;
    font-size: var(--f5);
  }

  .search-history-clear {
    display: flex;
    justify-content: flex-end;
    padding: var(--s1) 0 var(--s2);
  }

  /* ── Bookmarks page ─────────────────────────────────────────────────────── */

  .bm-toolbar {
    display: flex;
    gap: var(--s2);
    margin-bottom: var(--s4);
  }

  .bm-empty {
    padding: var(--s5) var(--s3);
    text-align: center;
    opacity: 0.5;
    font-size: var(--f5);
  }

  .bm-empty--folder {
    padding: var(--s3);
  }

  .bm-folder {
    margin-bottom: var(--s2);
    border: 1px solid currentColor;
    border-radius: var(--br-base);
    overflow: hidden;
  }

  .bm-folder-header {
    display: flex;
    align-items: center;
    gap: var(--s2);
    padding: var(--s3);
    cursor: pointer;
    user-select: none;
  }

  .bm-folder-header:hover {
    opacity: 0.7;
  }

  .bm-folder-toggle {
    font-size: var(--f5);
    flex-shrink: 0;
  }

  .bm-folder-name {
    flex: 1;
    font-weight: var(--fw-semibold);
    font-size: var(--f5);
  }

  .bm-folder-count {
    font-size: var(--f6);
    opacity: 0.5;
    flex-shrink: 0;
  }

  .bm-folder-body {
    border-top: 1px solid currentColor;
    padding: var(--s2) 0;
  }

  .bm-section {
    margin-bottom: var(--s2);
  }

  .bm-section-title {
    font-size: var(--f6);
    font-weight: var(--fw-semibold);
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--s2);
    padding: 0 var(--s3);
  }

  .bm-item {
    display: flex;
    align-items: center;
    gap: var(--s2);
    padding: var(--s2) var(--s3);
  }

  .bm-item-info {
    flex: 1;
    min-width: 0;
  }

  .bm-item-name {
    display: block;
    font-size: var(--f5);
    font-weight: var(--fw-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .bm-item-coords {
    display: block;
    font-size: var(--f6);
    opacity: 0.5;
    margin-top: 1px;
  }

  .bm-item-actions {
    display: flex;
    align-items: center;
    gap: var(--s1);
    flex-shrink: 0;
  }

  .bm-item-folder {
    font-size: var(--f6);
    max-width: 90px;
  }

  .bm-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--br-sm);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
  }

  .bm-icon-btn:hover {
    opacity: 1;
    transform: none;
  }

  .bm-icon-btn img {
    width: 16px;
    height: 16px;
  }

  .bm-add-form {
    margin-top: var(--s3);
    padding: var(--s3);
    border: 1px solid currentColor;
    border-radius: var(--br-base);
    display: flex;
    flex-direction: column;
    gap: var(--s2);
  }

  .bm-coord-row {
    display: flex;
    gap: var(--s2);
  }

  .bm-coord-row input {
    flex: 1;
    min-width: 0;
  }

  .bm-form-actions {
    display: flex;
    gap: var(--s2);
  }

  .bm-btn-danger {
    margin-left: auto;
    color: var(--error);
  }

  /* ── Bookmark edit dialog ───────────────────────────────────────────────── */

  .bm-dialog {
    padding: var(--s4);
    min-width: min(320px, 90vw);
    display: flex;
    flex-direction: column;
    gap: var(--s3);
  }

  .bm-dialog-title {
    font-size: var(--f4);
    font-weight: var(--fw-semibold);
    margin: 0;
  }

  .bm-dialog form {
    display: flex;
    flex-direction: column;
    gap: var(--s3);
  }

  .bm-dialog .bm-form-actions {
    margin-top: var(--s1);
  }

  .bm-dialog textarea {
    resize: vertical;
    min-height: 60px;
    font-family: inherit;
    font-size: var(--f5);
  }

  .bm-dialog-coords {
    font-size: var(--f6);
    opacity: 0.5;
    margin: 0;
    font-variant-numeric: tabular-nums;
  }
}