/* 1. Basic page settings */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      --bg: #0b1020;
      --panel: #131b30;
      --text: #f5f7ff;
      --muted: #a6b0ca;
      --accent: #8b7cff;
      --cyan: #53d9e8;
    }

    body {
      font-family: Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
    }

    button, input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    button:focus-visible, input:focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 3px;
    }

    /* 2. Top navigation */
    header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 6%;
  border-bottom: 1px solid #27304a;
}

.logo {
  font-size: clamp(1rem, 3vw, 1.3rem);
  font-weight: bold;
}

.status {
  color: var(--muted);
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}

    .logo {
      font-size: 1.3rem;
      font-weight: bold;
    }

    .logo span {
      color: var(--cyan);
    }

    .status {
      color: var(--muted);
      font-size: 0.85rem;
    }

    /* 3. Main introduction section */
    main {
      max-width: 1200px;
      margin: auto;
      padding: 38px 6%;
    }

    .hero {
      padding: 34px;
      border: 1px solid #34365d;
      border-radius: 24px;
      background:
        radial-gradient(ellipse at top right, #3d347b 0%, transparent 48%),
        linear-gradient(135deg, #182344, #11172b);
    }

    .eyebrow {
      color: var(--cyan);
      text-transform: uppercase;
      letter-spacing: 2px;
      font-size: 0.8rem;
    }

    h1 {
      margin: 15px 0;
      font-size: clamp(2rem, 5vw, 3.6rem);
      line-height: 1.1;
    }

    .hero p {
      max-width: 620px;
      color: var(--muted);
      line-height: 1.7;
    }

    /* 4. Search field */
    .search-area {
      display: flex;
      gap: 10px;
      margin-top: 24px;
      max-width: 650px;
    }

    .search-area input {
      flex: 1;
      min-width: 0;
      padding: 14px;
      border: 1px solid #394363;
      border-radius: 12px;
      background: #0b1020;
      color: white;
    }

    .primary-btn {
      border: 0;
      border-radius: 12px;
      padding: 14px 18px;
      background: var(--accent);
      color: white;
      font-weight: bold;
      transition: transform 0.2s, opacity 0.2s;
    }

    .primary-btn:hover {
      transform: translateY(-2px);
      opacity: 0.9;
    }

    /* 5. Category filters */
    .section-heading {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin: 36px 0 18px;
    }

    .section-heading p {
      margin-top: 7px;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .filters {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-bottom: 22px;
    }

    .filter-btn {
      padding: 9px 15px;
      border: 1px solid #343e5c;
      border-radius: 999px;
      background: var(--panel);
      color: var(--text);
    }

    .filter-btn.active {
      background: var(--accent);
      border-color: var(--accent);
    }

    /* 6. Show cards */
    .show-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .show-card {
      overflow: hidden;
      border: 1px solid #28334e;
      border-radius: 18px;
      background: var(--panel);
      transition: transform 0.2s, border-color 0.2s;
    }

    .show-card:hover {
      transform: translateY(-5px);
      border-color: var(--accent);
    }

    .poster {
      min-height: 165px;
      display: grid;
      place-items: center;
      font-size: 3.6rem;
      background: linear-gradient(135deg, #43387d, #166276);
    }

    .poster.pink {
      background: linear-gradient(135deg, #762d65, #d77b66);
    }

    .poster.gold {
      background: linear-gradient(135deg, #6d4b22, #9b8745);
    }

    .card-content {
      padding: 17px;
    }

    .genre {
      color: var(--cyan);
      font-size: 0.8rem;
    }

    .card-content h3 {
      margin: 9px 0;
    }

    .card-content p {
      min-height: 42px;
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.5;
    }

    .card-actions {
      display: flex;
      gap: 8px;
      margin-top: 16px;
    }

    .card-actions button {
      flex: 1;
      padding: 10px 8px;
      border: 1px solid #414b69;
      border-radius: 9px;
      background: transparent;
      color: white;
    }

    .card-actions .details-btn {
      background: #28264c;
      border-color: #514a87;
    }

    .empty {
      grid-column: 1 / -1;
      padding: 35px;
      text-align: center;
      color: var(--muted);
    }

    /* 7. Details popup */
    dialog {
      width: min(90%, 480px);
      margin: auto;
      padding: 25px;
      border: 1px solid #4c5680;
      border-radius: 18px;
      background: var(--panel);
      color: var(--text);
    }

    dialog::backdrop {
      background: #000b;
    }

    dialog h2 {
      margin-bottom: 12px;
    }

    dialog p {
      margin: 12px 0 20px;
      color: var(--muted);
      line-height: 1.6;
    }

    /* 8. Footer and mobile layout */
    footer {
      padding: 25px 6%;
      border-top: 1px solid #27304a;
      text-align: center;
      color: var(--muted);
      font-size: 0.85rem;
      line-height: 1.7;
    }

    @media (max-width: 800px) {
      .show-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 520px) {
      header {
        padding: 17px 5%;
      }

      main {
        padding: 25px 5%;
      }

      .hero {
        padding: 22px;
      }

      .show-grid {
        grid-template-columns: 1fr;
      }

      .search-area {
        flex-direction: column;
      }

      .section-heading {
        align-items: flex-start;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        scroll-behavior: auto !important;
        transition: none !important;
      }
    }