/* gstdetails.css — extracted verbatim from gstdetails.html's original inline <style>; logic/behavior unchanged, only relocated */
/* --- CSS VARIABLES & PREMIUM DASHBOARD THEME --- */
    :root {
      --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      --card-bg: rgba(30, 41, 59, 0.7);
      --card-border: rgba(255, 255, 255, 0.08);
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --primary: #6366f1;
      --accent-3: #f59e0b;
      --accent-5: #10b981;
      --accent-12: #0ea5e9;
      --accent-18: #8b5cf6;
      --accent-28: #f43f5e;
      --accent-40: #ef4444;
      --shadow: rgba(0, 0, 0, 0.4);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    }

    body {
      background: var(--bg-gradient);
      color: var(--text-main);
      min-height: 100vh;
      padding: 40px 20px;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .container {
      max-width: 900px;
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 25px;
    }

    /* --- GLASSMORPHISM HEADER CARD --- */
    .header-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--card-border);
      border-radius: 20px;
      padding: 30px;
      text-align: center;
      box-shadow: 0 8px 32px 0 var(--shadow);
    }

    .header-card h1 {
      font-size: 28px;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 10px;
      background: linear-gradient(to right, #a5b4fc, #6366f1);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .header-card p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.6;
    }

    /* --- LIVE FILTER / SEARCH BAR --- */
    .search-box {
      width: 100%;
      padding: 14px 20px;
      font-size: 16px;
      background: rgba(15, 23, 42, 0.6);
      border: 2px solid var(--card-border);
      border-radius: 12px;
      color: var(--text-main);
      outline: none;
      transition: all 0.3s ease;
    }

    .search-box:focus {
      border-color: var(--primary);
      box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
    }

    /* --- DYNAMIC SLAB CARDS --- */
    .slab-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--card-border);
      border-radius: 20px;
      padding: 25px;
      box-shadow: 0 8px 32px 0 var(--shadow);
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 20px;
      align-items: start;
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .slab-card:hover {
      transform: translateY(-2px);
    }

    .slab-badge {
      padding: 15px;
      border-radius: 12px;
      text-align: center;
      font-weight: 800;
      font-size: 22px;
      color: #fff;
      box-shadow: inset 0 0 10px rgba(255,255,255,0.1);
    }

    /* Custom Colors for Badges */
    .badge-3 { background: var(--accent-3); }
    .badge-5 { background: var(--accent-5); }
    .badge-12 { background: var(--accent-12); }
    .badge-18 { background: var(--accent-18); }
    .badge-28 { background: var(--accent-28); }
    .badge-40 { background: var(--accent-40); }

    .slab-badge span {
      display: block;
      font-size: 12px;
      font-weight: 500;
      margin-top: 4px;
      opacity: 0.9;
    }

    .slab-details h2 {
      font-size: 18px;
      margin-bottom: 10px;
      color: #fff;
    }

    .slab-details ul {
      list-style-type: none;
    }

    .slab-details li {
      font-size: 14px;
      line-height: 1.6;
      color: var(--text-muted);
      margin-bottom: 8px;
      position: relative;
      padding-left: 20px;
    }

    .slab-details li::before {
      content: "•";
      color: var(--primary);
      font-weight: bold;
      font-size: 18px;
      position: absolute;
      left: 0;
      top: -2px;
    }

    .slab-details strong {
      color: var(--text-main);
    }

    /* --- IMPORTANT PRO-TIPS SECTION --- */
    .pro-tips {
      background: rgba(99, 102, 241, 0.1);
      border: 1px solid rgba(99, 102, 241, 0.2);
      border-radius: 16px;
      padding: 20px;
    }

    .pro-tips h3 {
      font-size: 16px;
      color: #a5b4fc;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pro-tips p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* --- FOOTER BUTTON STYLES --- */
    .footer-actions {
      display: flex;
      justify-content: flex-start;
      margin-top: 10px;
    }

    .back-btn {
      padding: 14px 24px;
      background: #10b981;
      color: white;
      border: none;
      border-radius: 12px;
      font-weight: 700;
      font-size: 15px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
      transition: all 0.2s ease;
    }

    .back-btn:hover {
      background: #059669;
      transform: translateY(-2px);
    }

    /* --- RESPONSIVE BREAKPOINTS --- */
    @media (max-width: 640px) {
      .slab-card {
        grid-template-columns: 1fr;
        gap: 15px;
      }
      .slab-badge {
        padding: 10px;
        font-size: 18px;
      }
      .footer-actions {
        justify-content: center;
      }
      .back-btn {
        width: 100%;
        justify-content: center;
      }
    }