:root {
      --primary: #005cba;
      --primary-light: rgba(0, 92, 186, 0.2);
      --on-primary: #ffffff;
      --background: #000000;
      --surface: #000000;
      --surface-container-low: #050505;
      --surface-container-high: #1a1a1a;
      --on-surface: #f8f9fa;
      --on-surface-variant: #c1c6d5;
      --outline: #414753;
      --border-subtle: rgba(255,255,255,0.05);
      --border-light: rgba(255,255,255,0.1);
    }

    * { box-sizing: border-box; }

    body {
      font-family: 'Inter', sans-serif;
      background-color: var(--background);
      color: var(--on-surface);
    }

    h1, h2, h3, h4, h5, .font-headline {
      font-family: 'Manrope', sans-serif;
      color: #ffffff;
    }

    .material-symbols-outlined {
      font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
      vertical-align: middle;
    }

    a { text-decoration: none; }

    /* ── Navbar ── */
    .navbar-custom {
      background: rgba(0,0,0,0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      height: 80px;
    }
    .navbar-custom .navbar-brand {
      font-family: 'Manrope', sans-serif;
      font-weight: 800;
      font-size: 1.4rem;
      color: #fff !important;
      letter-spacing: -0.03em;
    }
    .navbar-custom .navbar-brand span { color: var(--primary); }
    .navbar-custom .nav-link {
      font-family: 'Manrope', sans-serif;
      font-weight: 700;
      color: var(--on-surface-variant) !important;
      transition: color 0.2s;
      letter-spacing: -0.02em;
    }
    .navbar-custom .nav-link:hover,
    .navbar-custom .nav-link.active {
      color: #fff !important;
      border-bottom: 2px solid var(--primary);
      padding-bottom: calc(0.5rem - 2px);
    }
    .navbar-custom .nav-link.active { color: var(--primary) !important; }
    .navbar-custom .navbar-toggler { border-color: rgba(255,255,255,0.3); }
    .navbar-custom .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* Search */
    .search-wrapper { position: relative; }
    .search-wrapper .material-symbols-outlined {
      position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
      color: var(--on-surface-variant); font-size: 18px;
    }
    .search-input {
      padding: 0.5rem 1rem 0.5rem 2.4rem;
      background: var(--surface-container-high);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      color: #fff;
      font-size: 0.875rem;
      width: 240px;
      outline: none;
    }
    .search-input:focus { box-shadow: 0 0 0 2px var(--primary); }

    .btn-account {
      background: transparent; border: none; color: #fff;
      font-weight: 700; transition: color 0.2s;
    }
    .btn-account:hover { color: var(--primary); }

    .btn-primary-custom {
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 0.6rem 1.5rem;
      border-radius: 8px;
      font-weight: 700;
      transition: filter 0.2s, transform 0.2s;
    }
    .btn-primary-custom:hover { filter: brightness(1.15); transform: scale(0.96); }

    /* ── Hero ── */
    .hero-section {
      position: relative;
      height: 819px;
      display: flex;
      align-items: center;
      overflow: hidden;
      background: #000;
    }
    .hero-bg {
      position: absolute; inset: 0; z-index: 0;
    }
    .hero-bg img {
      width: 100%; height: 100%; object-fit: cover;
      opacity: 0.4; filter: grayscale(100%);
    }
    .hero-gradient {
      position: absolute; inset: 0;
      background: linear-gradient(to right, #000 0%, rgba(0,0,0,0.8) 55%, transparent 100%);
    }
    .hero-content {
      position: relative; z-index: 10; width: 100%;
    }
    .hero-eyebrow {
      color: var(--primary);
      font-weight: 700;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      font-size: 0.8rem;
    }
    .hero-title {
      font-size: clamp(2.5rem, 5vw, 3.75rem);
      font-weight: 800;
      line-height: 1.1;
      color: #fff;
      max-width: 640px;
    }
    .hero-subtitle {
      color: var(--on-surface-variant);
      font-size: 1.15rem;
      line-height: 1.7;
      max-width: 560px;
    }
    .btn-outline-hero {
      border: 1px solid rgba(255,255,255,0.3);
      background: transparent;
      color: #fff;
      padding: 0.9rem 2rem;
      border-radius: 8px;
      font-weight: 700;
      font-size: 1rem;
      transition: background 0.2s;
    }
    .btn-outline-hero:hover { background: rgba(255,255,255,0.1); color: #fff; }

    /* ── Product Grid ── */
    .section-product { background: #000; padding: 6rem 0; }
    .section-title { font-size: 2.25rem; font-weight: 800; color: #fff; }
    .section-sub { color: var(--on-surface-variant); max-width: 560px; margin: 0 auto; }

    .category-card {
      background: var(--surface-container-low);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      padding: 2rem 1rem;
      text-align: center;
      transition: border-color 0.2s;
      height: 100%;
    }
    .category-card:hover { border-color: rgba(0, 92, 186, 0.5); }
    .category-card .material-symbols-outlined { font-size: 2.5rem; color: var(--primary); display: block; margin-bottom: 1rem; }
    .category-card h3 { font-weight: 700; color: #fff; font-size: 1rem; margin: 0; }

    /* ── Service Section ── */
    .section-service { background: #000; padding: 6rem 0; border-top: 1px solid var(--border-subtle); }

    .icon-box {
      background: var(--primary-light);
      padding: 0.75rem;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .icon-box .material-symbols-outlined { color: var(--primary); font-size: 1.5rem; }

    .service-image-wrap {
      position: relative;
    }
    .service-image-wrap img { border-radius: 16px; box-shadow: 0 32px 64px rgba(0,0,0,0.6); opacity: 0.8; width: 100%; }
    .uptime-badge {
      position: absolute; bottom: -1.5rem; left: -1.5rem;
      background: var(--surface-container-high);
      padding: 1.25rem 1.5rem;
      border-radius: 12px;
      box-shadow: 0 8px 32px rgba(0,0,0,0.5);
      border: 1px solid var(--border-light);
    }
    .uptime-badge .big-num { font-size: 1.75rem; font-weight: 900; color: var(--primary); line-height: 1; }
    .uptime-badge .label { font-size: 0.75rem; font-weight: 700; color: var(--on-surface-variant); margin-top: 2px; }

    /* ── Feature Banner ── */
    .section-feature { padding: 6rem 0; background: #000; }
    .feature-card {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      min-height: 500px;
      display: flex;
      align-items: center;
      border: 1px solid var(--border-light);
    }
    .feature-card img {
      position: absolute; inset: 0; width: 100%; height: 100%;
      object-fit: cover; filter: grayscale(100%); opacity: 0.3;
    }
    .feature-overlay {
      position: absolute; inset: 0;
      background: rgba(0,0,0,0.7);
      backdrop-filter: blur(2px);
    }
    .feature-card-body {
      position: relative; z-index: 10;
      padding: 3rem 4rem;
      color: #fff;
      max-width: 680px;
    }

    /* ── Content Blocks ── */
    .section-content { padding: 6rem 0; background: #000; }
    .content-block { padding: 4rem 0; }
    .content-block img {
      border-radius: 16px;
      box-shadow: 0 8px 32px rgba(0,0,0,0.4);
      width: 100%;
      height: 260px;
      object-fit: cover;
      opacity: 0.8;
      border: 1px solid var(--border-light);
    }
    .link-primary { color: var(--primary); font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
    .link-primary:hover { text-decoration: underline; color: var(--primary); }

    /* ── Help Grid ── */
    .section-help { background: #000; padding: 6rem 0; border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
    .help-card {
      background: var(--surface-container-low);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 2.5rem 1.5rem;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.2s;
      height: 100%;
    }
    .help-card:hover { border-color: rgba(0,92,186,0.5); }
    .help-card .material-symbols-outlined { font-size: 3rem; color: var(--primary); display: block; margin-bottom: 1.25rem; }
    .help-card h4 { font-weight: 700; font-size: 1.05rem; color: #fff; margin: 0; }

    /* ── Blog ── */
    .section-blog { padding: 6rem 0; background: #000; }
    .blog-card {
      background: var(--surface-container-low);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
      height: 100%;
    }
    .blog-card:hover { border-color: rgba(0,92,186,0.5); }
    .blog-card img { width: 100%; height: 192px; object-fit: cover; opacity: 0.8; transition: transform 0.5s; }
    .blog-card:hover img { transform: scale(1.05); }
    .blog-card .card-body { padding: 1.5rem; }
    .blog-eyebrow { font-size: 0.7rem; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.1em; }
    .blog-title {
      font-size: 1.1rem; font-weight: 700; line-height: 1.35; color: #fff; margin-top: 0.5rem;
      transition: color 0.2s;
    }
    .blog-card:hover .blog-title { color: var(--primary); }
    .blog-excerpt { font-size: 0.85rem; color: var(--on-surface-variant); margin-top: 0.5rem; }

    .btn-text-primary {
      background: transparent; border: none;
      color: var(--primary); font-weight: 700;
      display: inline-flex; align-items: center; gap: 4px;
      padding: 0;
    }
    .btn-text-primary:hover { text-decoration: underline; color: var(--primary); }

    /* ── Footer ── */
    footer {
      background: #000;
      color: #fff;
      border-top: 1px solid var(--border-light);
    }
    .footer-brand { font-family: 'Manrope', sans-serif; font-weight: 900; font-size: 1.4rem; }
    .footer-brand span { color: var(--primary); }
    .footer-desc { color: var(--on-surface-variant); font-size: 0.875rem; line-height: 1.7; }
    .footer-social .material-symbols-outlined {
      color: var(--primary); cursor: pointer; font-size: 1.5rem; transition: color 0.2s;
    }
    .footer-social .material-symbols-outlined:hover { color: #fff; }
    .footer-heading { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 1.25rem; }
    .footer-links { list-style: none; padding: 0; margin: 0; }
    .footer-links li { margin-bottom: 1rem; }
    .footer-links a {
      color: var(--on-surface-variant);
      font-size: 0.875rem;
      transition: color 0.2s;
      text-decoration: none;
    }
    .footer-links a:hover { color: var(--primary); text-decoration: underline; }
    .footer-bottom {
      border-top: 1px solid var(--border-light);
      color: var(--on-surface-variant);
      font-size: 0.75rem;
    }

    /* Utility spacing for padded top nav */
   

    @media (max-width: 767px) {
      .hero-section { height: auto; padding: 6rem 0; }
      .uptime-badge { display: none; }
      .feature-card-body { padding: 2rem 1.5rem; }
    }