:root {
      --bg: #121212;
      --bg-card: #1a1a1a;
      --bg-hover: #222;
      --purple: #7B2FF7;
      --purple-dim: rgba(123, 47, 247, 0.15);
      --purple-glow: rgba(123, 47, 247, 0.3);
      --text: #e8e8e8;
      --text-dim: #888;
      --text-muted: #666;
      --border: #2a2a2a;
      --border-purple: rgba(123, 47, 247, 0.3);
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      min-height: 100vh;
    }
    a { color: var(--purple); text-decoration: none; transition: color 0.2s; }
    a:hover { color: #9b5ff7; }

    /* Header */
    .header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1rem 2rem;
      border-bottom: 1px solid var(--border-purple);
      background: var(--bg);
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(12px);
      background: rgba(18, 18, 18, 0.92);
    }
    .header-left {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .header-icon,
    .header-icon-img {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .header-icon {
      background: var(--purple);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #fff;
    }
    .header-icon-img {
      object-fit: cover;
      display: block;
    }
    .header-title {
      font-family: 'Syne', sans-serif;
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    .header-title .accent { color: var(--purple); }
    .header-clock {
      font-size: 0.9rem;
      color: var(--text-dim);
      font-variant-numeric: tabular-nums;
      text-align: right;
      line-height: 1.3;
    }
    .header-clock .label {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--text-muted);
      display: block;
    }
    .header-clock .time {
      font-size: 1.1rem;
      font-weight: 500;
      color: var(--text);
    }

    /* Separator */
    .section-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--purple), transparent);
      opacity: 0.4;
      margin: 0;
    }

    /* Bond Bar */
    .bond-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--border);
      border-bottom: 1px solid var(--border);
    }
    .bond-card {
      background: var(--bg-card);
      padding: 0.75rem 1rem;
      text-align: center;
      transition: background 0.2s;
    }
    .bond-card:hover { background: var(--bg-hover); }
    .bond-card .label {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--text-muted);
    }
    .bond-card .yield {
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--text);
      margin-top: 2px;
    }
    .bond-card .change {
      font-size: 0.8rem;
      font-weight: 500;
    }
    .change.up { color: #4ade80; }
    .change.down { color: #f87171; }

    /* Main Content */
    .main-grid {
      display: grid;
      grid-template-columns: 180px 1fr 300px;
      gap: 2px;
      background: var(--border);
      min-height: calc(100vh - 130px);
    }

    .main-grid.sub {
      grid-template-columns: 200px 1fr;
    }

    /* Nav */
    .nav-col {
      background: var(--bg);
      padding: 2rem 1rem;
      border-right: 1px solid var(--border);
    }
    .nav-col nav { display: flex; flex-direction: column; gap: 0.25rem; position: sticky; top: 100px; }
    .nav-col nav a {
      display: block;
      padding: 0.6rem 1rem;
      border-radius: 6px;
      color: var(--text-dim);
      font-family: 'Syne', sans-serif;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      transition: all 0.2s;
      border: 1px solid transparent;
    }
    .nav-col nav a:hover {
      color: #fff;
      border-color: var(--purple);
      text-shadow: 0 0 8px var(--purple-glow);
      box-shadow: 0 0 12px rgba(139, 92, 246, 0.15);
    }
    .nav-col nav a.active {
      color: #fff;
      background: var(--purple-dim);
      border-color: var(--purple);
      text-shadow: 0 0 8px var(--purple-glow);
    }
    .nav-col .nav-brand-small {
      display: none;
    }

    /* Center Column */
    .center-col {
      background: var(--bg);
      padding: 2rem;
    }
    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 1.5rem;
      margin-bottom: 2rem;
      transition: border-color 0.2s;
    }
    .article-card:hover { border-color: var(--border-purple); }
    .article-card .date {
      font-size: 0.78rem;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }
    .article-card h2 {
      font-family: 'Syne', sans-serif;
      font-size: 1.4rem;
      margin: 0.5rem 0 0.75rem;
      line-height: 1.3;
      color: var(--text);
    }
    .article-card p {
      color: var(--text-dim);
      font-size: 0.92rem;
      line-height: 1.7;
      margin-bottom: 1rem;
    }
    .article-card .read-more {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-weight: 600;
      font-size: 0.85rem;
      color: var(--purple);
      border-bottom: 1px solid transparent;
      transition: border-color 0.2s;
    }
    .article-card .read-more:hover { border-bottom-color: var(--purple); }
    .article-card .read-more::after {
      content: "→";
      transition: transform 0.2s;
    }
    .article-card .read-more:hover::after { transform: translateX(4px); }

    .section-title {
      font-family: 'Syne', sans-serif;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--purple);
      margin-bottom: 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 1px solid var(--border-purple);
    }

    /* News Feed */
    .news-list { display: flex; flex-direction: column; gap: 0.75rem; }
    .news-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 1rem 1.25rem;
      transition: border-color 0.2s;
    }
    .news-item:hover { border-color: var(--border-purple); }
    .news-item .news-title {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text);
      line-height: 1.4;
      display: block;
      margin-bottom: 0.3rem;
    }
    .news-item .news-source {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    /* Right Column */
    .right-col {
      background: var(--bg);
      padding: 2rem;
      border-left: 1px solid var(--border);
    }
    .right-section { margin-bottom: 2rem; }

    /* Video Thumbnail */
    .video-thumb {
      position: relative;
      width: 100%;
      padding-top: 177.78%; /* 9:16 = 16/9 * 100 */
      max-height: 560px;
      overflow: hidden;
      border-radius: 10px;
      background: var(--bg-card);
      border: 1px solid var(--border);
    }
    .video-thumb iframe {
      position: absolute;
      top: -50px;
      left: 0;
      width: 100%;
      height: calc(100% + 50px);
      border: 0;
      border-radius: 10px;
    }
    .video-label-below {
      margin-top: 0.5rem;
      font-size: 0.78rem;
      color: var(--text-muted);
      text-align: center;
    }

    /* Twitter Embed */
    .tweet-placeholder {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 1.25rem;
    }
    .tweet-placeholder .tweet-header {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 0.75rem;
    }
    .tweet-placeholder .tweet-avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      object-fit: cover;
      flex-shrink: 0;
    }
    .tweet-placeholder .tweet-name {
      font-weight: 600;
      font-size: 0.85rem;
    }
    .tweet-placeholder .tweet-handle {
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .tweet-placeholder .tweet-body {
      font-size: 0.9rem;
      color: var(--text-dim);
      line-height: 1.6;
    }
    .tweet-placeholder .tweet-time {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 0.5rem;
    }

    /* Header Nav */
    .header-nav {
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      padding: 0.5rem 1rem;
      border-bottom: 1px solid var(--border);
      font-size: 0.82rem;
      flex-wrap: wrap;
      background: var(--bg);
    }
    .header-nav a {
      color: var(--text-dim);
      font-weight: 500;
      padding: 0.3rem 0;
      border-bottom: 2px solid transparent;
      transition: color 0.2s, border-color 0.2s;
    }
    .header-nav a:hover,
    .header-nav a.active {
      color: var(--text);
      border-bottom-color: var(--purple);
    }

    /* Footer */
    .footer {
      border-top: 1px solid var(--border-purple);
      padding: 2rem;
      text-align: center;
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .footer .footer-links {
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      margin-bottom: 0.75rem;
    }
    .footer .footer-links a {
      color: var(--text-dim);
      font-size: 0.82rem;
    }
    .footer .footer-links a:hover { color: var(--purple); }

    /* Side pages */
    .side-page {
      max-width: 800px;
      margin: 0 auto;
      padding: 3rem 2rem;
    }
    .side-page h1 {
      font-family: 'Syne', sans-serif;
      font-size: 2rem;
      margin-bottom: 1rem;
    }
    .side-page p {
      color: var(--text-dim);
      font-size: 1rem;
      line-height: 1.8;
    }
    .side-page .back-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      margin-bottom: 2rem;
      font-size: 0.9rem;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .main-grid {
        grid-template-columns: 1fr;
      }
      .nav-col {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 1rem;
      }
      .nav-col nav {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        position: static;
        gap: 0.25rem;
      }
      .nav-col nav a {
        border: 1px solid transparent;
        font-size: 0.78rem;
        padding: 0.4rem 0.75rem;
      }
      .nav-col nav a:hover {
        border-color: var(--purple);
        text-shadow: 0 0 6px var(--purple-glow);
      }
      .nav-col nav a.active {
        border-color: var(--purple);
        text-shadow: 0 0 6px var(--purple-glow);
        background: var(--purple-dim);
      }
      .right-col {
        border-left: none;
        border-top: 1px solid var(--border);
      }
      .bond-bar {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .header { padding: 0.75rem 1rem; }
      .header-title { font-size: 1.1rem; }
      .header-icon,
      .header-icon-img { width: 32px; height: 32px; }
      .header-icon { font-size: 1rem; }
      .center-col { padding: 1.25rem; }
      .right-col { padding: 1.25rem; }
      .bond-bar { grid-template-columns: repeat(2, 1fr); }
      .bond-card { padding: 0.5rem; }
      .bond-card .yield { font-size: 1rem; }
    }

    /* Mobile: stack sidebar nav above content, full-width videos */
    @media (max-width: 700px) {
      .main-grid {
        grid-template-columns: 1fr !important;
      }
      .nav-col {
        padding: 0.4rem 0;
      }
      .nav-col nav {
        display: flex;
        flex-wrap: wrap;
        gap: 0.3rem;
        justify-content: center;
      }
      .nav-col nav a {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
        letter-spacing: 0.03em;
        text-transform: uppercase;
      }
    }