html, body { height: 100%; box-sizing: border-box; margin: 0; }
    * { font-family: 'Plus Jakarta Sans', sans-serif; box-sizing: border-box; }
    body {
      background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 25%, #2d1b4e 50%, #1a1f3a 75%, #0a0e27 100%);
      background-attachment: fixed;
      position: relative;
      overflow-x: hidden;
      min-height: 100vh;
    }
    main { position: relative; z-index: 2; }
    .card-gradient {
      background: linear-gradient(180deg, rgba(30, 41, 59, 0.85), rgba(15, 23, 42, 0.95));
      position: relative;
      overflow: hidden;
    }
    .card-gradient::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(600px at var(--card-mouse-x, 50%) var(--card-mouse-y, 50%),
        rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.1), transparent 70%);
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .feature-card {
      transition: all 0.3s ease;
      border: 1px solid rgba(59, 130, 246, 0.2);
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }
    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(600px at var(--card-mouse-x, 50%) var(--card-mouse-y, 50%),
        rgba(139, 92, 246, 0.25), rgba(59, 130, 246, 0.1), transparent 70%);
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 40px rgba(59, 130, 246, 0.25), 0 0 40px rgba(139, 92, 246, 0.2);
      border-color: rgba(139, 92, 246, 0.5);
    }
    .feature-card:hover::before { opacity: 1; }
    .feature-card.active {
      outline: 2px solid #8b5cf6;
      border-color: #8b5cf6;
      box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
    }
    .query-section { display: none; animation: fadeIn 0.3s ease-out; }
    .query-section.active { display: block; }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .input-field {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid rgba(59, 130, 246, 0.2);
      transition: all 0.3s ease;
    }
    .input-field:focus {
      background: rgba(15, 23, 42, 0.95);
      border-color: #3b82f6;
      outline: none;
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    }
    .btn-primary {
      background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
      transition: all 0.3s ease;
      cursor: pointer;
    }
    .btn-primary:hover:not(:disabled) {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
    }
    .btn-primary:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }
    .result-card { background: rgba(15, 23, 42, 0.9); border: 1px solid rgba(59, 130, 246, 0.2); }
    .result-hidden { display: none; }
    .error-toast {
      position: fixed;
      bottom: 1rem;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(239, 68, 68, 0.95);
      backdrop-filter: blur(10px);
      color: white;
      padding: 1rem 1.5rem;
      border-radius: 0.75rem;
      box-shadow: 0 4px 20px rgba(239, 68, 68, 0.3);
      z-index: 50;
      animation: slideUp 0.3s ease-out;
    }
    @keyframes slideUp {
      from { opacity: 0; transform: translateX(-50%) translateY(20px); }
      to { opacity: 1; transform: translateX(-50%) translateY(0); }
    }
    .gradient-text {
      background: linear-gradient(90deg, #3b82f6 0%, #8b5cf6 25%, #3b82f6 50%, #8b5cf6 75%, #3b82f6 100%);
      background-size: 200% 100%;
      animation: titleGradientShift 8s ease infinite;
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    @keyframes titleGradientShift {
      0% { background-position: 0% center; }
      50% { background-position: 100% center; }
      100% { background-position: 0% center; }
    }
    *::-webkit-scrollbar { width: 10px; height: 10px; }
    *::-webkit-scrollbar-thumb {
      background: rgba(148, 163, 184, 0.25);
      border-radius: 999px;
      border: 2px solid rgba(15,23,42,0.7);
    }
    *::-webkit-scrollbar-track { background: rgba(15,23,42,0.2); }
    .global-search {
      position: relative;
      width: min(38vw, 320px);
      z-index: 70;
    }
    .global-search-input {
      width: 100%;
      height: 42px;
      padding: 0 0.95rem 0 2.75rem;
      border-radius: 12px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.16);
      color: white;
      backdrop-filter: blur(10px);
      transition: all 0.2s ease;
    }
    .global-search-input::placeholder {
      color: rgba(226, 232, 240, 0.72);
    }
    .global-search-input:focus {
      outline: none;
      background: rgba(255,255,255,0.14);
      border-color: rgba(147, 197, 253, 0.45);
      box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
    }
    .global-search-icon {
      position: absolute;
      left: 0.9rem;
      top: 50%;
      transform: translateY(-50%);
      color: rgba(191, 219, 254, 0.92);
      pointer-events: none;
      z-index: 2;
    }
    .global-search-results {
      position: absolute;
      top: calc(100% + 0.65rem);
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.96);
      border: 1px solid rgba(148, 163, 184, 0.16);
      border-radius: 18px;
      box-shadow: 0 24px 50px rgba(2, 6, 23, 0.42);
      overflow: hidden;
      z-index: 65;
    }
    .global-search-results.hidden {
      display: none;
    }
    .global-search-item {
      width: 100%;
      border: 0;
      background: transparent;
      color: white;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0.9rem 1rem;
      text-align: left;
      transition: background 0.2s ease;
    }
    .global-search-item:hover,
    .global-search-item.active {
      background: rgba(59, 130, 246, 0.12);
    }
    .global-search-kicker {
      display: block;
      font-size: 0.68rem;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      color: rgba(148, 163, 184, 0.88);
      margin-bottom: 0.12rem;
    }
    .global-search-route {
      font-size: 0.74rem;
      color: rgba(148, 163, 184, 0.9);
    }
    .global-search-empty {
      padding: 0.95rem 1rem;
      color: rgba(148, 163, 184, 0.95);
      font-size: 0.92rem;
    }
    .search-focus-overlay {
      position: fixed;
      inset: 0;
      background: rgba(7, 11, 24, 0.26);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      opacity: 1;
      transition: opacity 0.22s ease;
      z-index: 45;
      pointer-events: none;
    }
    .search-focus-overlay.hidden {
      display: none;
    }
    @media (max-width: 900px) {
      .global-search {
        width: min(100%, 220px);
      }
      .global-search-input {
        height: 40px;
      }
    }
    @media (max-width: 640px) {
      header {
        height: auto !important;
      }
      .global-search {
        display: none;
      }
      .global-search.mobile-open {
        display: block;
        position: absolute;
        top: calc(100% + 10px);
        left: 16px;
        right: 16px;
        width: auto;
        z-index: 70;
      }
      .global-search-results {
        max-height: min(60vh, 380px);
        overflow-y: auto;
      }
      main {
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
        padding-top: 5.5rem !important;
      }
      #hero-block {
        margin-bottom: 1.1rem !important;
      }
      #hero-title {
        font-size: 2rem !important;
        line-height: 1.08 !important;
      }
      #hero-subtitle {
        font-size: 0.98rem !important;
      }
      #home-tab .card-gradient,
      #content-tab .card-gradient,
      #help-tab .card-gradient,
      .query-section.card-gradient {
        padding: 1.15rem !important;
        border-radius: 1.35rem !important;
      }
      #cards-container {
        grid-template-columns: 1fr !important;
      }
      .feature-card {
        min-height: 0;
      }
      #error-toast {
        left: 0.75rem !important;
        right: 0.75rem !important;
        width: auto;
        transform: translateY(0) !important;
      }
    }