*, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --bg: #0f0f0f;
      --card-bg: #1a1a1a;
      --text: #e0e0e0;
      --text-secondary: #888;
      --link-bg: #222;
      --link-hover: #2a2a2a;
      --link-border: #333;
      --accent: #888;
      --switcher-bg: #1a1a1a;
      --switcher-border: #333;
      --shadow: rgba(0, 0, 0, 0.3);
    }

    [data-theme="light"] {
      --bg: #f5f5f5;
      --card-bg: #ffffff;
      --text: #1a1a1a;
      --text-secondary: #666;
      --link-bg: #ffffff;
      --link-hover: #f0f0f0;
      --link-border: #ddd;
      --accent: #555;
      --switcher-bg: #ffffff;
      --switcher-border: #ddd;
      --shadow: rgba(0, 0, 0, 0.08);
    }

    [data-theme="colorful"] {
      --bg: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
      --card-bg: rgba(255, 255, 255, 0.15);
      --text: #fff;
      --text-secondary: rgba(255, 255, 255, 0.7);
      --link-bg: rgba(255, 255, 255, 0.15);
      --link-hover: rgba(255, 255, 255, 0.25);
      --link-border: rgba(255, 255, 255, 0.2);
      --accent: #ffd700;
      --switcher-bg: rgba(255, 255, 255, 0.15);
      --switcher-border: rgba(255, 255, 255, 0.2);
      --shadow: rgba(0, 0, 0, 0.15);
    }

    [data-theme="neon"] {
      --bg: #0a0a0f;
      --card-bg: #0f0f1a;
      --text: #e0e0ff;
      --text-secondary: #7878aa;
      --link-bg: #0f0f1a;
      --link-hover: #15152a;
      --link-border: #1a1a3a;
      --accent: #00ffaa;
      --switcher-bg: #0f0f1a;
      --switcher-border: #1a1a3a;
      --shadow: rgba(0, 255, 170, 0.1);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 2rem 1rem;
      transition: background 0.4s, color 0.4s;
    }

    [data-theme="colorful"] body {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
      background-attachment: fixed;
    }

    .container {
      width: 100%;
      max-width: 480px;
    }

    /* Theme Switcher */
    .theme-switcher {
      display: flex;
      gap: 0.5rem;
      justify-content: center;
      margin-bottom: 2rem;
      background: var(--switcher-bg);
      border: 1px solid var(--switcher-border);
      border-radius: 2rem;
      padding: 0.35rem;
      box-shadow: 0 2px 8px var(--shadow);
      transition: background 0.4s, border-color 0.4s;
    }

    .theme-btn {
      border: none;
      background: none;
      cursor: pointer;
      padding: 0.4rem 0.7rem;
      border-radius: 1.5rem;
      font-size: 0.75rem;
      color: var(--text-secondary);
      transition: all 0.3s;
      white-space: nowrap;
    }

    .theme-btn:hover {
      color: var(--text);
    }

    .theme-btn.active {
      background: var(--link-border);
      color: var(--text);
    }

    [data-theme="neon"] .theme-btn.active {
      background: rgba(0, 255, 170, 0.15);
      color: #00ffaa;
      box-shadow: 0 0 10px rgba(0, 255, 170, 0.2);
    }

    /* Profile */
    .profile {
      text-align: center;
      margin-bottom: 2rem;
    }

    .avatar {
      width: 96px;
      height: 96px;
      border-radius: 50%;
      margin-bottom: 1rem;
      border: 3px solid var(--link-border);
      object-fit: cover;
      transition: border-color 0.4s;
    }

    [data-theme="neon"] .avatar {
      border-color: #00ffaa;
      box-shadow: 0 0 20px rgba(0, 255, 170, 0.3);
    }

    .profile h1 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 0.35rem;
    }

    .profile p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: color 0.4s;
    }

    /* Section Headers */
    .section-label {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--text-secondary);
      margin-bottom: 0.75rem;
      padding-left: 0.25rem;
      transition: color 0.4s;
    }

    [data-theme="neon"] .section-label {
      color: var(--accent);
    }

    /* Links */
    .links {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      margin-bottom: 2rem;
    }

    .link-item {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      padding: 0.85rem 1.1rem;
      background: var(--link-bg);
      border: 1px solid var(--link-border);
      border-radius: 0.75rem;
      text-decoration: none;
      color: var(--text);
      transition: all 0.25s;
      box-shadow: 0 1px 3px var(--shadow);
    }

    .link-item:hover {
      background: var(--link-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px var(--shadow);
    }

    [data-theme="neon"] .link-item:hover {
      border-color: #00ffaa;
      box-shadow: 0 0 15px rgba(0, 255, 170, 0.15);
    }

    .link-icon {
      width: 20px;
      height: 20px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .link-icon svg {
      width: 20px;
      height: 20px;
      fill: var(--text-secondary);
      transition: fill 0.4s;
    }

    [data-theme="neon"] .link-icon svg {
      fill: var(--accent);
    }

    .link-text {
      flex: 1;
    }

    .link-text .title {
      font-size: 0.9rem;
      font-weight: 600;
    }

    .link-text .subtitle {
      font-size: 0.75rem;
      color: var(--text-secondary);
      transition: color 0.4s;
    }

    .link-arrow {
      color: var(--text-secondary);
      font-size: 0.85rem;
      transition: color 0.4s;
    }

    /* Footer */
    footer {
      text-align: center;
      margin-top: auto;
      padding-top: 2rem;
      color: var(--text-secondary);
      font-size: 0.75rem;
      transition: color 0.4s;
    }

    /* Age Gate */
    .age-gate {
      position: fixed;
      inset: 0;
      z-index: 9999;
      background: #0f0f0f;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }
    .age-gate.hidden { display: none; }
    .age-gate-card {
      background: #1a1a1a;
      border: 1px solid #333;
      border-radius: 1rem;
      padding: 2.5rem;
      max-width: 380px;
      width: 100%;
      text-align: center;
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }
    .age-gate-card h2 {
      font-size: 1.25rem;
      color: #e0e0e0;
      margin-bottom: 0.5rem;
    }
    .age-gate-card p {
      color: #888;
      font-size: 0.85rem;
      margin-bottom: 1.5rem;
      line-height: 1.4;
    }
    .age-gate-card .dob-fields {
      display: flex;
      gap: 0.5rem;
      justify-content: center;
      margin-bottom: 1.25rem;
    }
    .age-gate-card select {
      padding: 0.6rem 0.5rem;
      background: #111;
      border: 1px solid #333;
      border-radius: 0.5rem;
      color: #e0e0e0;
      font-size: 0.85rem;
      outline: none;
      cursor: pointer;
      transition: border-color 0.2s;
    }
    .age-gate-card select:focus { border-color: #555; }
    .age-gate-card .age-submit {
      width: 100%;
      padding: 0.75rem;
      background: #e0e0e0;
      color: #111;
      border: none;
      border-radius: 0.5rem;
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s;
    }
    .age-gate-card .age-submit:hover { background: #fff; }
    .age-gate-card .age-submit:disabled {
      background: #333;
      color: #666;
      cursor: not-allowed;
    }
    .age-gate-card .age-error {
      color: #ff6b6b;
      font-size: 0.8rem;
      margin-top: 0.75rem;
      display: none;
    }

    /* 21+ Confirmation Modal */
    .age-modal-overlay {
      position: fixed;
      inset: 0;
      z-index: 10000;
      background: rgba(0, 0, 0, 0.7);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }
    .age-modal-overlay.visible {
      display: flex;
    }
    .age-modal {
      background: #1a1a1a;
      border: 1px solid #333;
      border-radius: 1rem;
      padding: 2rem;
      max-width: 360px;
      width: 100%;
      text-align: center;
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    }
    .age-modal h2 {
      font-size: 1.15rem;
      color: #e0e0e0;
      margin-bottom: 0.5rem;
    }
    .age-modal p {
      color: #888;
      font-size: 0.85rem;
      margin-bottom: 1.5rem;
      line-height: 1.4;
    }
    .age-modal-buttons {
      display: flex;
      gap: 0.75rem;
    }
    .age-modal-btn {
      flex: 1;
      padding: 0.7rem;
      border: none;
      border-radius: 0.5rem;
      font-size: 0.85rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s;
    }
    .age-modal-yes {
      background: #e0e0e0;
      color: #111;
    }
    .age-modal-yes:hover { background: #fff; }
    .age-modal-no {
      background: #333;
      color: #ccc;
    }
    .age-modal-no:hover { background: #444; }