:root {
      --navy-900: #03192c;
      --navy-800: #0b2545;
      --navy-600: #1f3f66;
      --teal-500: #278ea5;
      --accent-500: #f4a261;
      --accent-300: #ffd4a3;
      --gray-100: #f8fafc;
      --gray-200: #eef2f6;
      --gray-400: #b8c2cf;
      --text-800: #1f2937;
      --text-500: #5d6680;
    }

    [data-theme="dark"] {
      --navy-900: #f8fafc;
      --navy-800: #eef2f6;
      --navy-600: #cbd5e1;
      --gray-100: #0f172a;
      --gray-200: #1e293b;
      --gray-400: #475569;
      --text-800: #f1f5f9;
      --text-500: #cbd5e1;
    }

    [data-theme="dark"] body {
      background: var(--gray-100);
      color: var(--text-800);
    }

    [data-theme="dark"] .site-header {
      background: var(--gray-200);
      border-bottom-color: var(--gray-400);
    }

    [data-theme="dark"] .brand-text span,
    [data-theme="dark"] .brand-text strong {
      color: var(--text-800);
    }

    [data-theme="dark"] .nav-links a {
      color: var(--text-800);
    }

    [data-theme="dark"] .gallery-section {
      color: var(--text-800);
    }

    [data-theme="dark"] .gallery-item {
      background: var(--gray-200);
    }

    [data-theme="dark"] .gallery-item-placeholder {
      background: linear-gradient(135deg, var(--gray-200), var(--gray-100));
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--gray-100);
      color: var(--text-800);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    .wrapper {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .site-header .wrapper {
      width: 100%;
      max-width: none;
      margin: 0;
      padding: 0;
    }

    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--gray-200);
      position: sticky;
      top: 0;
      z-index: 50;
      box-shadow: 0 12px 30px rgba(3, 25, 44, 0.07);
      padding: 1rem 0 1.75rem;
    }

    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 0 1.75rem;
      padding-left: 0.5rem;
    }

    .brand-block {
      display: flex;
      align-items: center;
      gap: 0.85rem;
    }

    .brand-icon {
      width: 70px;
      height: 70px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }
    .brand-icon img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      border-radius: 12px;
    }

    .brand-text span {
      display: block;
      font-size: 0.85rem;
      letter-spacing: 0.04em;
      font-weight: 600;
      color: var(--navy-900);
      margin-bottom: -0.42rem;
    }

    .brand-text strong {
      font-size: 0.6rem;
      letter-spacing: 0.3em;
      text-transform: uppercase;
      color: var(--text-500);
      margin-top: -0.57rem;
    }

    .nav-links {
      list-style: none;
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }

    .nav-links a {
      text-decoration: none;
      font-weight: 500;
      color: var(--navy-600);
      font-size: 0.95rem;
      transition: color 0.2s ease;
    }

    .nav-links a:hover {
      color: var(--teal-500);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    .pill {
      border-radius: 999px;
      padding: 0.35rem 1rem;
      font-weight: 500;
      font-size: 0.9rem;
    }

    .pill-outline {
      border: 1px solid var(--gray-200);
      color: var(--navy-800);
    }

    .pill-solid {
      background: var(--accent-500);
      color: var(--navy-900);
      box-shadow: 0 12px 22px rgba(244, 162, 97, 0.35);
    }

    .theme-toggle {
      background: transparent;
      border: 1px solid var(--gray-200);
      border-radius: 8px;
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      cursor: pointer;
      transition: all 0.2s ease;
      font-size: 1.2rem;
      color: var(--text-800);
    }

    .theme-toggle:hover {
      background: var(--gray-100);
      border-color: var(--teal-500);
    }

    [data-theme="dark"] .theme-toggle {
      border-color: var(--gray-400);
      color: var(--text-800);
    }

    [data-theme="dark"] .theme-toggle:hover {
      background: var(--gray-200);
    }

    main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2.5rem 1.5rem 4rem;
    }

    .back-button {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 1.5rem;
      padding: 0.5rem 1rem;
      background: #fff;
      border: 1px solid var(--gray-200);
      border-radius: 8px;
      color: var(--navy-600);
      font-weight: 500;
      font-size: 0.9rem;
      transition: all 0.2s ease;
      text-decoration: none;
    }

    .back-button:hover {
      background: var(--gray-100);
      border-color: var(--teal-500);
      color: var(--teal-500);
      transform: translateX(-3px);
    }

    .page-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .page-header h1 {
      font-size: clamp(2rem, 4vw, 2.8rem);
      color: var(--navy-900);
      margin-bottom: 0.5rem;
    }

    .page-header p {
      color: var(--text-500);
      font-size: 1.1rem;
    }

    .gallery-section {
      margin-bottom: 4rem;
      scroll-margin-top: 100px;
    }

    .section-title {
      font-size: 1.8rem;
      color: var(--navy-900);
      margin-bottom: 1.5rem;
      padding-bottom: 0.5rem;
      border-bottom: 3px solid var(--accent-500);
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 1.5rem;
      margin-top: 1.5rem;
    }

    .gallery-item {
      background: #fff;
      border-radius: 18px;
      overflow: hidden;
      box-shadow: 0 8px 25px rgba(3, 25, 44, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      cursor: pointer;
    }

    .gallery-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 35px rgba(3, 25, 44, 0.15);
    }

    .gallery-item-placeholder {
      width: 100%;
      height: 220px;
      background: linear-gradient(135deg, var(--gray-200), var(--gray-100));
      display: grid;
      place-items: center;
      color: var(--text-500);
      font-weight: 500;
    }

    .gallery-item img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }

    .gallery-item-caption {
      padding: 1rem;
      text-align: center;
      color: var(--navy-600);
      font-size: 0.9rem;
    }

    footer {
      text-align: center;
      padding: 0.5rem 1rem 0.6rem;
      color: #fff;
      background: var(--navy-900);
      border-top: 3px solid var(--accent-500);
      font-size: 0.8rem;
    }

    footer a {
      color: var(--accent-500);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    footer a:hover {
      color: var(--accent-300);
      text-decoration: underline;
    }

    .footer-credit {
      margin-top: 0.25rem;
      font-size: 0.75rem;
      color: rgba(255, 255, 255, 0.7);
    }

    .scroll-to-top {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      width: 50px;
      height: 50px;
      background: var(--accent-500);
      color: var(--navy-900);
      border: none;
      border-radius: 50%;
      font-size: 1.5rem;
      cursor: pointer;
      display: none;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 25px rgba(244, 162, 97, 0.4);
      transition: all 0.3s ease;
      z-index: 1000;
    }

    .scroll-to-top:hover {
      background: var(--accent-300);
      transform: translateY(-3px);
      box-shadow: 0 12px 35px rgba(244, 162, 97, 0.5);
    }

    .scroll-to-top.show {
      display: flex;
    }

    [data-theme="dark"] .scroll-to-top {
      background: var(--teal-500);
      color: #fff;
    }

    [data-theme="dark"] .scroll-to-top:hover {
      background: var(--navy-600);
    }

    @media (max-width: 960px) {
      .nav-bar {
        flex-wrap: wrap;
      }

      .nav-links {
        flex-wrap: wrap;
        justify-content: center;
      }

      .nav-links li:not(:last-child)::after {
        display: none;
      }
    }