:root {
    --bg: #fafafa;
    --surface: #ffffff;
    --line: #e7e8ec;
    --line-soft: #f0f1f4;
    --ink: #14171e;
    --ink-2: #3a4256;
    --ink-3: #6b7385;
    --primary: #2c5fbf;
    --primary-dark: #1e4391;
    --primary-soft: #eaf0fb;
    --accent: #10b981;
    --warn: #f59e0b;
    --danger: #dc2626;
    --shadow-sm: 0 2px 8px rgba(20, 23, 30, 0.04);
    --shadow-md: 0 4px 16px -2px rgba(20, 23, 30, 0.06);
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.55;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; text-decoration: none; }
  .container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
  .mono { font-family: 'JetBrains Mono', monospace; }

  /* Sticky-header offset: header 76 + subnav 50 = 126 + breathing room */
  section[id] { scroll-margin-top: 130px; }
  section[id]:target { animation: target-pulse 1.4s ease-out; }
  @keyframes target-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(44, 95, 191, 0); }
    25%  { box-shadow: 0 0 0 6px rgba(44, 95, 191, 0.12); }
    100% { box-shadow: 0 0 0 0 rgba(44, 95, 191, 0); }
  }

  /* ===== TOP BAR ===== */
  .topbar {
    background: var(--ink);
    color: #c8ccd4;
    font-size: 13px;
    border-bottom: 1px solid #20242c;
  }
  .topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 36px;
  }
  .topbar-left, .topbar-right { display: flex; gap: 18px; align-items: center; }
  .topbar a { color: #c8ccd4; transition: color 0.15s; }
  .topbar a:hover { color: #fff; }
  .topbar .flag { display: inline-flex; align-items: center; gap: 6px; }
  .topbar select {
    background: transparent; color: #c8ccd4; border: 0; font: inherit;
    cursor: pointer; outline: none;
  }

  /* ===== HEADER ===== */
  header {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 50;
  }
  .header-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 28px;
    align-items: center;
    height: 76px;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 19px;
    letter-spacing: -0.01em;
  }
  .logo-mark {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: grid; place-items: center;
    color: #fff;
    box-shadow: 0 2px 6px rgba(44, 95, 191, 0.3);
  }
  .logo-mark svg { width: 22px; height: 22px; }
  .logo small {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--ink-3);
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .search {
    position: relative;
    max-width: 540px;
  }
  .search input {
    width: 100%;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0 16px 0 44px;
    font: inherit;
    background: var(--bg);
    outline: none;
    transition: border-color 0.15s, background 0.15s;
  }
  .search input:focus { border-color: var(--primary); background: #fff; }
  .search-icon {
    position: absolute; left: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--ink-3);
    pointer-events: none;
  }

  .header-actions { display: flex; align-items: center; gap: 8px; }
  .icon-btn {
    width: 44px; height: 44px;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--line);
    display: grid; place-items: center;
    color: var(--ink-2);
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
  }
  .icon-btn:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
  .icon-btn .badge {
    position: absolute; top: -4px; right: -4px;
    background: var(--danger); color: #fff;
    font-size: 10px; font-weight: 600;
    min-width: 18px; height: 18px; padding: 0 5px;
    border-radius: 9px;
    display: grid; place-items: center;
  }

  /* ===== MAIN NAV ===== */
  .mainnav {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
  }
  .mainnav-inner {
    display: flex;
    gap: 4px;
    height: 50px;
    align-items: center;
    overflow-x: auto;
  }
  .mainnav a {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-2);
    white-space: nowrap;
    transition: all 0.15s;
  }
  .mainnav a:hover { background: var(--bg); color: var(--ink); }
  .mainnav a.active { background: var(--primary); color: #fff; }
  .mainnav a.hot { color: var(--danger); }

  /* ===== HERO ===== */
  .hero {
    background: linear-gradient(180deg, #f4f7fd 0%, var(--bg) 100%);
    padding: 56px 0 64px;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px; font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 18px;
  }
  .hero-eyebrow .dot {
    width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
  }
  .hero h1 {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 18px;
  }
  .hero h1 .accent { color: var(--primary); }
  .hero p.lead {
    font-size: 17px;
    color: var(--ink-2);
    margin-bottom: 28px;
    max-width: 540px;
  }
  .hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    height: 48px; padding: 0 22px;
    border-radius: 10px;
    font: inherit; font-weight: 600; font-size: 15px;
    cursor: pointer;
    border: 0;
    transition: all 0.18s;
  }
  .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(44, 95, 191, 0.25); }
  .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(44, 95, 191, 0.35); }
  .btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
  .btn-ghost:hover { background: var(--surface); border-color: var(--ink-3); }

  .hero-stats {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
    max-width: 520px;
  }
  .stat .num {
    font-size: 28px; font-weight: 700;
    color: var(--ink); letter-spacing: -0.02em;
  }
  .stat .num small { font-size: 14px; color: var(--ink-3); font-weight: 500; margin-left: 2px; }
  .stat .lbl { font-size: 13px; color: var(--ink-3); margin-top: 4px; }

  /* Hero visual */
  .hero-visual {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 22px;
    box-shadow: var(--shadow-md);
  }
  .hv-header {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 16px;
  }
  .hv-title { font-size: 14px; font-weight: 600; }
  .hv-pill {
    background: #ecfdf5; color: #047857;
    font-size: 11px; font-weight: 600;
    padding: 4px 10px; border-radius: 999px;
    letter-spacing: 0.04em;
  }
  .hv-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--line-soft);
  }
  .hv-row:last-child { border-bottom: 0; }
  .hv-icon {
    width: 36px; height: 36px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 8px;
    display: grid; place-items: center;
    flex-shrink: 0;
  }
  .hv-row .info { flex: 1; }
  .hv-row .name { font-size: 14px; font-weight: 600; }
  .hv-row .meta { font-size: 12px; color: var(--ink-3); }
  .hv-row .price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px; font-weight: 600; color: var(--ink);
  }

  /* ===== SECTION COMMON ===== */
  section { padding: 64px 0; }
  .section-head {
    display: flex; align-items: end; justify-content: space-between;
    margin-bottom: 32px;
    gap: 20px;
    flex-wrap: wrap;
  }
  .section-head h2 {
    font-size: 32px; font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 6px;
  }
  .section-head p { color: var(--ink-3); font-size: 15px; }
  .section-head .eyebrow {
    font-size: 12px; font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .link-arrow {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary); font-weight: 600; font-size: 14px;
    transition: gap 0.15s;
  }
  .link-arrow:hover { gap: 10px; }

  /* ===== PRODUCT GRID ===== */
  .filters {
    display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap;
  }
  .chip {
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
    font-size: 13px; font-weight: 500;
    color: var(--ink-2);
    cursor: pointer;
    transition: all 0.15s;
  }
  .chip:hover { border-color: var(--ink-3); }
  .chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

  .product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .product-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
  }
  .product-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  .pc-tag {
    display: inline-block;
    font-size: 11px; font-weight: 600;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 14px;
    align-self: flex-start;
  }
  .pc-tag.hot { color: #b45309; background: #fef3c7; }
  .pc-tag.new { color: #047857; background: #d1fae5; }
  .pc-thumb {
    aspect-ratio: 1.1 / 1;
    background: linear-gradient(135deg, #eef2fb 0%, #dde6f7 100%);
    border-radius: 10px;
    display: grid; place-items: center;
    color: var(--primary);
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
  }
  .pc-thumb.dark { background: linear-gradient(135deg, #1e2530 0%, #2c3543 100%); color: #c8d2e3; }
  .pc-thumb.amber { background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%); color: #92400e; }
  .pc-thumb svg { width: 64px; height: 64px; }
  .pc-thumb .badge-online {
    position: absolute; top: 10px; right: 10px;
    background: rgba(255,255,255,0.95);
    color: var(--ink-2);
    font-size: 11px; font-weight: 600;
    padding: 4px 8px;
    border-radius: 6px;
  }
  .pc-title {
    font-size: 15px; font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.35;
  }
  .pc-desc { font-size: 13px; color: var(--ink-3); margin-bottom: 16px; flex: 1; }
  .pc-foot {
    display: flex; justify-content: space-between; align-items: end;
    padding-top: 14px;
    border-top: 1px solid var(--line-soft);
  }
  .pc-price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px; font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.02em;
  }
  .pc-price small { font-size: 12px; color: var(--ink-3); font-weight: 500; }
  .pc-buy {
    width: 38px; height: 38px;
    border-radius: 8px;
    background: var(--ink);
    color: #fff;
    display: grid; place-items: center;
    border: 0; cursor: pointer;
    transition: background 0.15s;
  }
  .pc-buy:hover { background: var(--primary); }

  /* ===== FEATURES / WHY US ===== */
  .why-section { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .why-item {
    padding: 8px 24px;
    border-right: 1px solid var(--line);
  }
  .why-item:last-child { border-right: 0; }
  .why-icon {
    width: 44px; height: 44px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 10px;
    display: grid; place-items: center;
    margin-bottom: 16px;
  }
  .why-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
  .why-item p { font-size: 13.5px; color: var(--ink-3); line-height: 1.55; }

  /* ===== ARCHITECTURE / ELINNA ===== */
  .elinna {
    background: linear-gradient(180deg, #0f1421 0%, #1a2034 100%);
    color: #e3e6ec;
    border-radius: 20px;
    padding: 40px;
    margin-top: 8px;
  }
  .elinna-head {
    display: grid; grid-template-columns: 1fr auto;
    gap: 32px; align-items: end;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .elinna-head h2 { color: #fff; }
  .elinna-head .eyebrow { color: #7ea8ff; }
  .elinna-head p { color: #a4adc4; }
  .arch-row {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 24px;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .arch-row:last-child { border-bottom: 0; }
  .arch-tier {
    font-size: 12px; font-weight: 600;
    color: #7ea8ff;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .arch-blocks { display: flex; gap: 10px; flex-wrap: wrap; }
  .arch-block {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13.5px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #d4d9e5;
  }
  .arch-block .desc-mini { color: #8a92a8; font-size: 12px; }

  /* ===== CATEGORIES ===== */
  .cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .cat-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    transition: all 0.2s;
    cursor: pointer;
  }
  .cat-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
  .cat-card .ic {
    width: 48px; height: 48px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 12px;
    display: grid; place-items: center;
    margin-bottom: 16px;
  }
  .cat-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
  .cat-card p { font-size: 13.5px; color: var(--ink-3); margin-bottom: 14px; }
  .cat-card .count {
    font-size: 12px; font-weight: 600;
    color: var(--primary);
    padding-top: 12px;
    border-top: 1px solid var(--line-soft);
  }

  /* ===== FAQ ===== */
  .faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .faq {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px 20px;
    transition: border-color 0.15s;
  }
  .faq:hover { border-color: var(--primary); }
  .faq h4 {
    font-size: 15px; font-weight: 600;
    margin-bottom: 8px;
    display: flex; align-items: center;
    gap: 10px;
  }
  .faq h4 .q {
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    flex-shrink: 0;
  }
  .faq p { font-size: 14px; color: var(--ink-2); line-height: 1.55; }

  /* ===== ABOUT / DELIVERY ===== */
  .about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: start;
  }
  .about-text p {
    font-size: 15px;
    color: var(--ink-2);
    line-height: 1.7;
    margin-bottom: 14px;
  }
  .about-text p:last-child { margin-bottom: 0; }
  .timeline { position: relative; padding-left: 36px; }
  .timeline::before {
    content: ""; position: absolute;
    left: 11px; top: 8px; bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
  }
  .tl-item {
    position: relative;
    padding-bottom: 22px;
  }
  .tl-item:last-child { padding-bottom: 0; }
  .tl-dot {
    position: absolute;
    left: -36px; top: 2px;
    width: 24px; height: 24px;
    background: var(--surface);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: grid; place-items: center;
    color: var(--primary);
  }
  .tl-dot svg { width: 12px; height: 12px; }
  .tl-year {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.04em;
    margin-bottom: 4px;
  }
  .tl-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
  .tl-item p { font-size: 13.5px; color: var(--ink-3); }

  .pay-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 20px;
  }
  .pay-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
    text-align: center;
    transition: all 0.18s;
  }
  .pay-card:hover { border-color: var(--primary); transform: translateY(-2px); }
  .pay-card .pi {
    width: 40px; height: 40px;
    margin: 0 auto 10px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 10px;
    display: grid; place-items: center;
  }
  .pay-card h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
  .pay-card p { font-size: 12.5px; color: var(--ink-3); line-height: 1.4; }

  /* ===== SUPPORT ===== */
  .support-section { background: linear-gradient(135deg, #f0f4fc 0%, #e7eef9 100%); }
  .support-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .support-grid h2 { margin-bottom: 14px; }
  .support-list { list-style: none; margin-top: 24px; }
  .support-list li {
    display: flex; gap: 12px; align-items: start;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .support-list li:last-child { border-bottom: 0; }
  .support-list .tick {
    width: 24px; height: 24px;
    background: var(--primary); color: #fff;
    border-radius: 50%;
    display: grid; place-items: center;
    flex-shrink: 0;
  }
  .support-list .tick svg { width: 14px; height: 14px; }
  .support-list strong { display: block; font-size: 14.5px; margin-bottom: 2px; }
  .support-list span { font-size: 13px; color: var(--ink-3); }

  .contact-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--shadow-md);
  }
  .contact-card h3 { font-size: 18px; margin-bottom: 20px; }
  .kv-row {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--line);
    font-size: 14px;
  }
  .kv-row:last-child { border-bottom: 0; }
  .kv-row .k { color: var(--ink-3); font-weight: 500; }
  .kv-row .v { color: var(--ink); font-weight: 600; }
  .kv-row .v.mono { font-family: 'JetBrains Mono', monospace; font-size: 13px; }

  /* ===== FOOTER ===== */
  footer {
    background: var(--ink);
    color: #a8b0bf;
    padding: 56px 0 0;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 48px;
    padding-bottom: 40px;
  }
  .footer-brand .logo { color: #fff; margin-bottom: 16px; }
  .footer-brand .logo small { color: #6b7385; }
  .footer-brand p { font-size: 13.5px; line-height: 1.6; max-width: 320px; }
  .footer-col h4 {
    color: #fff; font-size: 13px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.06em;
    margin-bottom: 16px;
  }
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a {
    color: #a8b0bf; font-size: 14px;
    transition: color 0.15s;
  }
  .footer-col a:hover { color: #fff; }
  .footer-bottom {
    border-top: 1px solid #20242c;
    padding: 22px 0;
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px;
  }
  .footer-bottom .payments {
    display: flex; gap: 8px; align-items: center;
  }
  .pay-chip {
    background: #20242c;
    color: #c8ccd4;
    font-size: 11px; font-weight: 600;
    padding: 6px 10px;
    border-radius: 6px;
    letter-spacing: 0.04em;
  }

  /* ===== RESPONSIVE ===== */
  @media (max-width: 980px) {
    .hero-grid, .support-grid, .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .pay-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 34px; }
    .product-grid, .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .why-item { border-right: 0; border-bottom: 1px solid var(--line); padding: 24px 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .elinna { padding: 28px; }
  }
  @media (max-width: 640px) {
    .hero h1 { font-size: 28px; }
    .product-grid, .cat-grid { grid-template-columns: 1fr; }
    .why-grid, .footer-grid { grid-template-columns: 1fr; }
    .pay-grid { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
    .topbar-inner { font-size: 12px; }
    .topbar-left, .topbar-right { gap: 12px; }
    .header-inner { gap: 12px; height: 64px; }
    .logo { font-size: 16px; }
    .logo small { display: none; }
    .icon-btn { width: 40px; height: 40px; }
    .section-head h2 { font-size: 24px; }
  }