:root {
    --navy: #0a1628;
    --navy-light: #132337;
    --teal: #00b4d8;
    --teal-dark: #0096c7;
    --gold: #c9a227;
    --white: #ffffff;
    --off-white: #f4f7fa;
    --gray: #64748b;
    --dark-gray: #334155;
    --success: #10b981;
    --danger: #ef4444;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'Manrope', system-ui, sans-serif;
    color: var(--dark-gray);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
  }

  h1, h2, h3, h4 {
    font-family: 'Sora', sans-serif;
    font-weight: 700;
    color: var(--navy);
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
  }

  img {
    max-width: 100%;
    display: block;
  }

  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ========== HEADER ========== */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: all 0.3s ease;
  }

  header.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 78px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .logo-icon {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--teal), var(--teal-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: white;
    font-size: 14px;
    letter-spacing: 0;
  }

  .logo-text {
    display: flex;
    flex-direction: column;
  }

  .logo-text strong {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    line-height: 1.1;
  }

  .logo-text span {
    color: var(--teal);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
  }

  nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
  }

  nav a {
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
  }

  nav a:hover,
  nav a.active {
    color: var(--teal);
  }

  nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--teal);
    transition: width 0.3s ease;
  }

  nav a:hover::after,
  nav a.active::after {
    width: 100%;
  }

  .header-cta {
    background: var(--teal);
    color: white;
    padding: 10px 22px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
  }

  .header-cta:hover {
    background: var(--teal-dark);
    transform: translateY(-1px);
  }

  .mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
  }

  .mobile-toggle span {
    width: 26px;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
  }

  /* ========== HERO ========== */
  .hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a1628 0%, #0f2744 50%, #0a1628 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 78px;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
      radial-gradient(ellipse at 20% 50%, rgba(0,180,216,0.12) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 20%, rgba(201,162,39,0.08) 0%, transparent 40%);
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,180,216,0.15);
    border: 1px solid rgba(0,180,216,0.3);
    color: var(--teal);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 28px;
  }

  .hero h1 {
    font-size: clamp(2.6rem, 5.5vw, 4.2rem);
    color: white;
    line-height: 1.15;
    margin-bottom: 24px;
  }

  .hero h1 span {
    color: var(--teal);
  }

  .hero p {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    max-width: 560px;
    margin-bottom: 40px;
    font-weight: 400;
  }

  .hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
  }

  .btn-primary {
    background: var(--teal);
    color: white;
  }

  .btn-primary:hover {
    background: var(--teal-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,180,216,0.35);
  }

  .btn-outline {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255,255,255,0.35);
  }

  .btn-outline:hover {
    border-color: var(--teal);
    color: var(--teal);
  }

  .hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .stat-item h3 {
    font-size: 2.4rem;
    color: white;
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    margin-bottom: 4px;
  }

  .stat-item h3 span {
    color: var(--teal);
  }

  .stat-item p {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin: 0;
  }

  /* ========== SECTION COMMON ========== */
  section {
    padding: 100px 0;
  }

  .section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 60px;
  }

  .section-header .label {
    display: inline-block;
    color: var(--teal);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .section-header h2 {
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    margin-bottom: 16px;
  }

  .section-header p {
    color: var(--gray);
    font-size: 1.05rem;
  }

  /* ========== ABOUT ========== */
  .about {
    background: var(--off-white);
  }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }

  .about-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
  }

  .about-content p {
    color: var(--gray);
    margin-bottom: 18px;
  }

  .about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
  }

  .feature-card {
    background: white;
    padding: 22px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
  }

  .feature-card h4 {
    font-size: 1rem;
    margin-bottom: 6px;
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
  }

  .feature-card p {
    font-size: 0.875rem;
    color: var(--gray);
    margin: 0;
  }

  .about-visual {
    background: linear-gradient(145deg, var(--navy), #1a365d);
    border-radius: 20px;
    padding: 48px 40px;
    color: white;
    position: relative;
    overflow: hidden;
  }

  .about-visual::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0,180,216,0.2), transparent 70%);
  }

  .about-visual h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 12px;
  }

  .about-visual p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 28px;
  }

  .mission-box {
    background: rgba(255,255,255,0.08);
    border-left: 4px solid var(--teal);
    padding: 20px 24px;
    border-radius: 0 10px 10px 0;
    font-style: italic;
    color: rgba(255,255,255,0.9);
    font-size: 1.05rem;
  }

  /* ========== SERVICES ========== */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
  }

  .service-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 36px 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(10,22,40,0.1);
    border-color: var(--teal);
  }

  .service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(0,180,216,0.15), rgba(0,180,216,0.05));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 22px;
  }

  .service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-family: 'Manrope', sans-serif;
    font-weight: 650;
  }

  .service-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
  }

  .service-card a {
    color: var(--teal);
    font-weight: 600;
    font-size: 0.9rem;
  }

  .service-card a:hover {
    color: var(--teal-dark);
  }

  /* ========== VESSELS REGISTER ========== */
  .vessels {
    background: var(--off-white);
  }

  .register-box {
    background: white;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  }

  .register-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 24px;
    border-bottom: 1px solid #e2e8f0;
    align-items: center;
  }

  .search-input {
    flex: 1;
    min-width: 220px;
    padding: 12px 18px;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
  }

  .search-input:focus {
    border-color: var(--teal);
  }

  .filter-select {
    padding: 12px 16px;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: inherit;
    background: white;
    cursor: pointer;
    outline: none;
  }

  .filter-select:focus {
    border-color: var(--teal);
  }

  .table-wrapper {
    overflow-x: auto;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
  }

  thead {
    background: var(--navy);
    color: white;
  }

  th {
    padding: 16px 18px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
  }

  td {
    padding: 14px 18px;
    border-bottom: 1px solid #f1f5f9;
    white-space: nowrap;
  }

  tbody tr:hover {
    background: #f8fafc;
  }

  .badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
  }

  .badge-yacht {
    background: #e0f2fe;
    color: #0369a1;
  }

  .badge-cargo {
    background: #fef3c7;
    color: #b45309;
  }

  .badge-tanker {
    background: #fce7f3;
    color: #be185d;
  }

  .badge-barge {
    background: #d1fae5;
    color: #047857;
  }

  .no-results {
    text-align: center;
    padding: 48px;
    color: var(--gray);
  }

  /* ========== DIGITAL TOOLBOX ========== */
  .toolbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
  }

  .tool-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
  }

  .tool-card:hover {
    border-color: var(--teal);
    box-shadow: 0 12px 30px rgba(0,180,216,0.12);
  }

  .tool-card .icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
  }

  .tool-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-family: 'Manrope', sans-serif;
    font-weight: 650;
  }

  .tool-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .tool-card .btn {
    width: 100%;
    justify-content: center;
  }

  /* Modal */
  .modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,22,40,0.7);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
  }

  .modal-overlay.active {
    display: flex;
  }

  .modal {
    background: white;
    border-radius: 16px;
    width: 100%;
    max-width: 480px;
    padding: 36px;
    position: relative;
    animation: modalIn 0.3s ease;
  }

  @keyframes modalIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .modal h3 {
    margin-bottom: 8px;
  }

  .modal p {
    color: var(--gray);
    margin-bottom: 24px;
    font-size: 0.95rem;
  }

  .modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
  }

  .form-group {
    margin-bottom: 18px;
  }

  .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--navy);
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
  }

  .form-group input:focus,
  .form-group textarea:focus {
    border-color: var(--teal);
  }

  .form-result {
    margin-top: 20px;
    padding: 16px;
    border-radius: 8px;
    display: none;
    font-size: 0.9rem;
  }

  .form-result.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    display: block;
  }

  .form-result.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
    display: block;
  }

  /* ========== NEWS ========== */
  .news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
  }

  .news-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    transition: all 0.3s ease;
  }

  .news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 35px rgba(0,0,0,0.08);
  }

  .news-image {
    height: 180px;
    background: linear-gradient(135deg, var(--navy), #1e3a5f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    font-size: 3rem;
  }

  .news-body {
    padding: 24px;
  }

  .news-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--gray);
  }

  .news-meta .tag {
    color: var(--teal);
    font-weight: 600;
  }

  .news-body h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-family: 'Manrope', sans-serif;
    font-weight: 650;
    line-height: 1.4;
  }

  .news-body p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 16px;
  }

  .news-body a {
    color: var(--teal);
    font-weight: 600;
    font-size: 0.875rem;
  }

  /* ========== ORGANISATION ========== */
  .org {
    background: var(--off-white);
  }

  .leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
  }

  .leader-card {
    background: white;
    border-radius: 14px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
  }

  .leader-card:hover {
    border-color: var(--teal);
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  }

  .leader-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--navy), var(--teal));
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    font-weight: 700;
  }

  .leader-card h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    font-family: 'Manrope', sans-serif;
    font-weight: 650;
  }

  .leader-card .role {
    color: var(--teal);
    font-size: 0.85rem;
    font-weight: 500;
  }

  /* ========== CONTACT ========== */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
  }

  .contact-info p {
    color: var(--gray);
    margin-bottom: 28px;
  }

  .contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }

  .contact-item .icon-box {
    width: 44px;
    height: 44px;
    background: rgba(0,180,216,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
  }

  .contact-item h5 {
    font-size: 0.95rem;
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
    margin-bottom: 2px;
  }

  .contact-item span {
    color: var(--gray);
    font-size: 0.9rem;
  }

  .contact-form-box {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 36px;
  }

  .contact-form-box h3 {
    margin-bottom: 24px;
    font-size: 1.3rem;
  }

  /* ========== FOOTER ========== */
  footer {
    background: var(--navy);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 32px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
  }

  .footer-brand .logo {
    margin-bottom: 18px;
  }

  .footer-brand p {
    font-size: 0.9rem;
    max-width: 300px;
    margin-bottom: 20px;
  }

  .footer-col h4 {
    color: white;
    font-size: 0.95rem;
    font-family: 'Manrope', sans-serif;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
  }

  .footer-col ul {
    list-style: none;
  }

  .footer-col li {
    margin-bottom: 10px;
  }

  .footer-col a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
  }

  .footer-col a:hover {
    color: var(--teal);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
  }

  /* ========== RESPONSIVE ========== */
  @media (max-width: 900px) {
    nav {
      display: none;
    }

    nav.open {
      display: block;
      position: absolute;
      top: 78px;
      left: 0;
      width: 100%;
      background: var(--navy);
      padding: 24px;
      border-top: 1px solid rgba(255,255,255,0.1);
    }

    nav.open ul {
      flex-direction: column;
      gap: 18px;
    }

    .mobile-toggle {
      display: flex;
    }

    .header-cta {
      display: none;
    }

    .about-grid,
    .contact-grid {
      grid-template-columns: 1fr;
    }

    .hero-stats {
      gap: 28px;
      flex-wrap: wrap;
    }

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

  @media (max-width: 600px) {
    .footer-grid {
      grid-template-columns: 1fr;
    }

    .about-features {
      grid-template-columns: 1fr;
    }

    .hero-buttons {
      flex-direction: column;
    }

    .btn {
      width: 100%;
      justify-content: center;
    }
  }