@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;600;700&family=Atkinson+Hyperlegible:wght@400;600;700&family=Source+Sans+3:wght@400;600;700&display=swap');

    :root {
      /* Default theme: Warm Neutral */
      --bg-primary: #0f1419;
      --bg-card: #1a1f27;
      --bg-item: #1c2432;
      --bg-item-old: #0f141c;
      --bg-hover: #242b36;
      --text-primary: #c8cdd7;
      --text-secondary: #8f97a4;
      --text-muted: #7a828c;
      --border-primary: #3a4556;
      --border-card: #242c38;
      --accent: #8b9fc9;
      --accent-bright: #7dc3ff;
      --accent-soft: rgba(139, 159, 201, 0.22);
      --bg-panel-opaque: #1a1f27;
      --dropdown-bg: #1c2432;
      --dropdown-border: #242c38;
      --dropdown-text: #c8cdd7;
    }

    [data-theme="neutral-gray"] {
      --bg-primary: #1a1a1a;
      --bg-card: #252525;
      --bg-item: #252525;
      --bg-item-old: #1f1f1f;
      --bg-hover: #2a2a2a;
      --text-primary: #b8b8b8;
      --text-secondary: #909090;
      --text-muted: #707070;
      --border-primary: #404040;
      --border-card: #303030;
      --accent: #7a7a7a;
      --accent-bright: #9a9a9a;
      --accent-soft: rgba(122, 122, 122, 0.22);
      --bg-panel-opaque: #252525;
      --dropdown-bg: #1f1f1f;
      --dropdown-border: #303030;
      --dropdown-text: #b8b8b8;
    }

    [data-theme="cool-minimal"] {
      --bg-primary: #161b22;
      --bg-card: #0d1117;
      --bg-item: #0d1117;
      --bg-item-old: #0a0e13;
      --bg-hover: #1c2128;
      --text-primary: #d0d5dd;
      --text-secondary: #8b949e;
      --text-muted: #6e7681;
      --border-primary: #30363d;
      --border-card: #21262d;
      --accent: #79c0ff;
      --accent-bright: #79c0ff;
      --accent-soft: rgba(121, 192, 255, 0.25);
      --bg-panel-opaque: #0d1117;
      --dropdown-bg: #0a0e13;
      --dropdown-border: #21262d;
      --dropdown-text: #d0d5dd;
    }

    [data-theme="soft-slate"] {
      --bg-primary: #2f3238;
      --bg-card: rgba(0, 0, 0, 0.25);
      --bg-item: rgba(0, 0, 0, 0.45);
      --bg-item-old: rgba(0, 0, 0, 0.18);
      --bg-hover: rgba(88, 88, 88, 0.45);
      --text-primary: #ececec;
      --text-secondary: #a8adb7;
      --text-muted: #868b96;
      --border-primary: rgba(255, 255, 255, 0.12);
      --border-card: rgba(255, 255, 255, 0.06);
      --accent: #8e9cd6;
      --accent-bright: #6b93e6;
      --accent-soft: rgba(142, 156, 214, 0.24);
      --bg-panel-opaque: #3a3f47;
      --dropdown-bg: #2d3139;
      --dropdown-border: #2f3238;
      --dropdown-text: #ececec;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      background: var(--bg-primary);
      font-family: 'Lato', 'Atkinson Hyperlegible', 'Source Sans 3', -apple-system, system-ui, 'Segoe UI', sans-serif;
      font-weight: 400;
      font-size: 16px;
      line-height: 1.5;
      color: var(--text-primary);
      overflow-x: hidden;
      letter-spacing: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* Layout grid */
    .layout {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 12px;
    }

    .top-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(360px, 1fr));
      gap: 12px;
      align-items: start;
    }

    .feeds-masonry {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      width: 100%;
      grid-auto-flow: dense;
    }

    .feeds-masonry .card {
      display: block;
      width: 100%;
      margin: 0;
    }

    .feed-column {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .drop-zone {
      border: 2px dashed #7dc3ff;
      border-radius: 10px;
      min-height: 80px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #8f97a4;
      font-size: 13px;
      background: rgba(125, 195, 255, 0.05);
      visibility: hidden;
      transition: all 0.2s ease;
    }

    .drop-zone.active {
      visibility: visible;
      background: rgba(125, 195, 255, 0.1);
    }

    .drop-zone.drag-over {
      border-color: #4aa3ff;
      background: rgba(74, 163, 255, 0.15);
      color: #e9edf4;
    }

    .span-2 {
      grid-column: span 2;
    }

    /* Theme selector */
    #themeSelector {
      position: fixed;
      top: 12px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      padding: 6px 12px;
      background: var(--bg-card);
      border: 1px solid var(--border-primary);
      border-radius: 8px;
      color: var(--text-primary);
      font-size: 13px;
      cursor: pointer;
      font-family: inherit;
      transition: all 0.2s;
    }

    #themeSelector:hover {
      border-color: var(--accent-bright);
      box-shadow: 0 0 8px rgba(125, 195, 255, 0.15);
    }

    #themeSelector:focus {
      outline: none;
      border-color: var(--accent-bright);
    }

    #themeSelector option {
      background: var(--bg-card);
      color: var(--text-primary);
    }

    /* Card base styles */
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
      border-radius: 14px;
      display: flex;
      flex-direction: column;
      font-size: 14px;
      line-height: 1.5;
      position: relative;
      color: #e9edf4;
      overflow: visible;
      transition: transform 0.05s ease, box-shadow 0.05s ease;
    }

    .card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 14px;
      position: relative;
      font-weight: 650;
      background: transparent;
      color: inherit;
      border-top-left-radius: 14px;
      border-top-right-radius: 14px;
      cursor: grab;
    }

    .card-header:active {
      cursor: grabbing;
    }

    .feed-card .card-header {
      font-size: 16px;
    }

    .card-header .card-link {
      color: inherit;
      text-decoration: none;
    }

    .card-header .card-link:hover {
      text-decoration: none;
    }

    .feed-count-select {
      background: var(--dropdown-bg);
      border: 1px solid var(--dropdown-border);
      color: var(--dropdown-text);
      font-size: 12px;
      border-radius: 8px;
      padding: 4px 8px;
      outline: none;
      opacity: 0.85;
      transition: opacity 0.2s ease, border-color 0.2s ease;
    }

    .feed-count-select:hover,
    .feed-count-select:focus {
      opacity: 1;
      border-color: var(--border-primary);
    }

    .feed-count-select option {
      background: var(--bg-card);
      color: var(--text-primary);
    }

    /* Hidden settings panel */
    #settingsPanel {
      position: fixed;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: var(--bg-panel-opaque);
      border: 2px solid var(--border-primary);
      border-radius: 12px;
      padding: 24px;
      z-index: 9999;
      max-width: 400px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
      display: none;
    }

    #settingsPanel.visible {
      display: block;
    }

    #settingsPanel h2 {
      margin: 0 0 16px 0;
      color: #e9edf4;
      font-size: 18px;
    }

    #settingsPanel label {
      display: block;
      margin-bottom: 12px;
      color: #d5dbe5;
      font-size: 14px;
    }

    #settingsPanel input {
      width: 100%;
      padding: 8px 12px;
      background: var(--dropdown-bg);
      border: 1px solid var(--dropdown-border);
      border-radius: 6px;
      color: var(--dropdown-text);
      font-family: monospace;
      font-size: 12px;
      box-sizing: border-box;
    }

    #settingsPanel select.settings-select {
      width: 100%;
      padding: 8px 12px;
      background: var(--dropdown-bg);
      border: 1px solid var(--dropdown-border);
      border-radius: 6px;
      color: var(--dropdown-text);
      font-family: inherit;
      font-size: 14px;
      box-sizing: border-box;
    }

    #settingsPanel select.settings-select:focus {
      outline: none;
      border-color: var(--accent-bright);
      box-shadow: 0 0 8px rgba(125, 195, 255, 0.3);
    }

    #settingsPanel input:focus {
      outline: none;
      border-color: var(--accent-bright);
      box-shadow: 0 0 8px rgba(125, 195, 255, 0.3);
    }

    #settingsPanel button {
      margin-right: 8px;
      margin-top: 16px;
      padding: 8px 16px;
      background: #3f5670;
      border: 1px solid #7dc3ff;
      border-radius: 6px;
      color: #e9edf4;
      cursor: pointer;
      font-size: 14px;
    }

    #settingsPanel button:hover {
      background: var(--accent);
      border-color: var(--accent-bright);
    }

    #settingsStatus {
      margin-top: 12px;
      font-size: 12px;
      color: #9ee7ff;
    }

    .card-header::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 4px;
      border-top-left-radius: 14px;
      background: var(--accent, #7dc3ff);
    }

    .card-controls {
      font-size: 11px;
      opacity: 0.8;
    }

    .card-content {
      padding: 10px 12px 8px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      overflow: visible;
    }

    /* Market card */
    .market-card {
      font-size: clamp(12px, 1vw, 14px);
      gap: 12px;
    }

    .market-tickers {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      padding: 0 16px 12px;
    }

    .ticker {
      background: var(--bg-item-old);
      border: 1px solid var(--border-card);
      border-radius: 10px;
      padding: 8px 10px;
    }

    .ticker-title {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      font-size: clamp(20px, 2.2vw, 28px);
      margin-bottom: 6px;
      font-weight: 700;
    }

    .ticker-row {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 10px;
    }

    .value {
      font-size: 12px;
      color: #cbd3dc;
      white-space: nowrap;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      line-height: 1.2;
    }

    .trend {
      height: 30px;
      display: flex;
      align-items: flex-end;
      gap: 2px;
    }

    .bar {
      width: clamp(6px, 0.6vw, 8px);
      background: linear-gradient(to top, #4aa3ff, #6ae3ff);
      border-radius: 3px;
    }

    .bar.down {
      background: linear-gradient(to top, #ff5d5d, #ff9b9b);
    }

    .zones {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      padding: 0 16px 12px;
    }

    .zone {
      background: var(--bg-item-old);
      border: 1px solid var(--border-card);
      border-radius: 10px;
      padding: 8px 10px;
      display: flex;
      flex-direction: column;
      gap: 4px;
      font-size: 12px;
    }

    .zone-title {
      font-size: 11px;
      color: var(--text-secondary);
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    .zone-city {
      font-size: 11px;
      color: var(--text-muted);
    }

    .zone-time {
      font-size: clamp(20px, 2.2vw, 28px);
      line-height: 1.2;
      color: var(--text-primary);
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-weight: 700;
      white-space: nowrap;
    }

    /* Responsive adjustments */
    @media (max-width: 1200px) {
      .top-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .feeds-masonry {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .market-tickers,
      .zones {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 768px) {
      body {
        font-size: 15px;
      }

      .layout {
        padding: 10px;
        gap: 10px;
      }

      /* Hide top promo cards on small screens to focus on feeds */
      .top-grid {
        display: none;
      }

      .feeds-masonry {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .feed-column {
        gap: 10px;
      }

      .card {
        border-radius: 12px;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
      }

      .card-header,
      .recs-header {
        padding: 9px 12px;
      }

      .card-content,
      .recs-items {
        padding: 10px 12px;
      }

      .feed-count-select {
        font-size: 11px;
        padding: 3px 7px;
      }

      .drop-zone {
        min-height: 60px;
        font-size: 12px;
      }

      .item {
        font-size: 14px;
      }

      .meta {
        font-size: 10px;
      }

      /* Slightly tighter trend/ticker spacing if shown in future */
      .market-tickers,
      .zones {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        padding: 0 12px 10px;
        gap: 6px;
      }

      /* Disable drag/drop affordances on mobile */
      .drop-zone {
        display: none;
      }

      .feed-card,
      .feed-card .card-header {
        cursor: default;
      }

      #themeSelector {
        top: 10px;
        left: auto;
        right: 12px;
        transform: none;
      }
    }

    /* Recommendations card */
    .recs-card {
      border: none;
    }

    .recs-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 14px;
      position: relative;
      font-weight: 650;
      background: transparent;
      color: inherit;
      border-top-left-radius: 14px;
      border-top-right-radius: 14px;
      font-size: 14px;
    }

    .lock-icon {
      cursor: pointer;
      font-size: 16px;
      opacity: 0.6;
      transition: opacity 0.2s;
      user-select: none;
    }

    .lock-icon:hover {
      opacity: 1;
    }

    .recs-items {
      padding: 12px 14px;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    .recs-items .item {
      margin: 0;
    }

    /* Feed items */
    .item {
      font-size: 15px;
      line-height: 1.5;
      position: relative;
      padding: 8px 11px;
      --itemBase: var(--bg-item);
      background: var(--itemBase);
      border-radius: 10px;
      border: 1px solid var(--border-card);
      transition: transform 0.05s ease, box-shadow 0.05s ease;
      overflow: visible;
      z-index: 1;
      color: var(--text-primary);
    }

    .feed-card {
      background: var(--bg-card);
      border-color: var(--border-card);
      cursor: grab;
    }

    .feed-card.dragging {
      opacity: 0.65;
    }

    .feed-card.drag-over {
      outline: 2px dashed #7dc3ff;
      outline-offset: 4px;
    }

    .item:not(.old) {
      --itemBase: var(--bg-item);
      background: var(--itemBase);
      border-color: var(--border-primary);
      color: var(--text-primary);
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.26);
    }

    .item:not(.old) a {
      color: var(--text-primary);
    }

    .item.old {
      --itemBase: var(--bg-item-old);
      background: var(--itemBase);
      border-color: var(--border-card);
      color: var(--text-secondary);
      opacity: 0.94;
    }

    .item.old a {
      color: var(--text-secondary);
    }

    .age {
      color: #c7ced9;
      white-space: nowrap;
      font-size: 12px;
      font-weight: 600;
    }

    .item.old .age {
      color: #7f8794;
    }

    .item:hover {
      background:
        linear-gradient(
          90deg,
          var(--itemAccentStrong, rgba(255, 255, 255, 0.24)) 0%,
          var(--itemAccentSoft, rgba(255, 255, 255, 0.14)) 20%,
          transparent 50%
        ),
        var(--itemBase);
      border-color: var(--border-primary);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
    }

    .rank-bar {
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 4px;
      border-radius: 4px 0 0 4px;
      background: var(--rankGrad, linear-gradient(to bottom, #6ae3ff, #4aa3ff));
      opacity: 0.85;
    }

    .item a {
      color: #f5f7fb;
      text-decoration: none;
    }

    .item a:hover {
      text-decoration: none;
    }

    .item-header {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      align-items: center;
      margin-bottom: 4px;
    }

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

    .new-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #9ee7ff;
      box-shadow: 0 0 6px rgba(158, 231, 255, 0.6);
      margin-right: 6px;
      flex-shrink: 0;
    }

    .age {
      color: #9aa3ad;
      white-space: nowrap;
      font-size: 11px;
    }

    .meta {
      display: flex;
      justify-content: space-between;
      font-size: 11px;
      color: #9aa3ad;
      font-weight: 400;
      letter-spacing: 0.02em;
      margin-top: 4px;
    }

    .score {
      font-weight: 600;
      color: #9ee7ff;
      position: relative;
      cursor: help;
    }

    .score-tooltip {
      visibility: hidden;
      position: absolute;
      background: #0d0f14;
      color: #cbd3dc;
      text-align: center;
      padding: 6px 10px;
      border-radius: 6px;
      font-weight: normal;
      font-size: 11px;
      white-space: nowrap;
      z-index: 1000;
      border: 1px solid #555;
      pointer-events: none;
      opacity: 1 !important;
      bottom: 125%;
      left: 50%;
      transform: translateX(-50%);
    }

    .score-tooltip::after {
      content: "";
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%);
      border: 5px solid transparent;
      border-top-color: #0d0f14;
    }

    .score:hover .score-tooltip {
      visibility: visible;
    }

    .muted {
      opacity: 0.5;
    }

    .loading {
      text-align: center;
      padding: 20px;
      color: #9aa3ad;
    }

    .error {
      color: #ff9b9b;
      padding: 10px;
      background: rgba(255, 93, 93, 0.1);
      border-radius: 8px;
      font-size: 12px;
    }

    .error-overlay {
      position: fixed;
      top: 60px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 10000;
      max-width: 600px;
      background: #1a1f27;
      border: 2px solid #ff5d5d;
      border-radius: 12px;
      padding: 16px 20px;
      box-shadow: 0 10px 40px rgba(255, 93, 93, 0.3);
      animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
      from {
        opacity: 0;
        transform: translate(-50%, -20px);
      }
      to {
        opacity: 1;
        transform: translate(-50%, 0);
      }
    }

    .error-overlay-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
    }

    .error-overlay-title {
      color: #ff9b9b;
      font-weight: 600;
      font-size: 14px;
    }

    .error-overlay-close {
      background: none;
      border: none;
      color: #ff9b9b;
      cursor: pointer;
      font-size: 20px;
      padding: 0;
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 4px;
      transition: background 0.2s;
    }

    .error-overlay-close:hover {
      background: rgba(255, 93, 93, 0.2);
    }

    .error-overlay-content {
      color: #d5dbe5;
      font-size: 13px;
      line-height: 1.5;
    }

    .error-overlay-content ul {
      margin: 8px 0 0 0;
      padding-left: 20px;
    }