:root {
  --navy: #0b1b33;
  --navy-2: #13294b;
  --ink: #172033;
  --muted: #5b6577;
  --line: #e6e9ef;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --accent: #ff7a1a;
  --accent-2: #ffb347;
  --amazon: #ffd814;
  --amazon-hover: #f7ca00;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(11, 27, 51, .08);
  --shadow-lg: 0 20px 50px rgba(11, 27, 51, .14);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.narrow { max-width: 820px; }
.muted { color: var(--muted); }
.eyebrow {
  text-transform: uppercase; letter-spacing: .12em; font-size: .78rem;
  font-weight: 700; color: var(--accent); margin-bottom: .75rem;
}
.accent { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .8em 1.4em; border-radius: 999px; font-weight: 600; font-size: .95rem;
  text-decoration: none; border: 0; cursor: pointer; transition: transform .15s, background .15s, box-shadow .15s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); box-shadow: var(--shadow); }
.btn-amazon { background: var(--amazon); color: #111; }
.btn-amazon:hover { background: var(--amazon-hover); }
.btn-ghost { background: transparent; color: var(--navy); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--navy); }
.btn-sm { padding: .55em 1.1em; font-size: .88rem; }
.btn-lg { padding: 1em 2em; font-size: 1.05rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .88); backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo {
  font-weight: 800; font-size: 1.5rem; letter-spacing: .08em; text-decoration: none; color: var(--navy);
}
.logo::after { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-left: 4px; }
.logo-light { color: #fff; }
.nav-links { display: flex; align-items: center; gap: 1.75rem; }
.nav-links a:not(.btn) { text-decoration: none; font-weight: 500; font-size: .95rem; color: var(--muted); }
.nav-links a:not(.btn):hover { color: var(--navy); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px 0; transition: .2s; }

/* Hero */
.hero {
  background: radial-gradient(1200px 500px at 80% 0%, #fff1e6 0%, rgba(255,255,255,0) 60%), linear-gradient(180deg, #f7f9fc, #fff);
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); font-weight: 800; color: var(--navy); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 34em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 36px; }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 32px; }
.hero-points li { display: flex; flex-direction: column; }
.hero-points strong { font-size: 1.35rem; color: var(--navy); }
.hero-points span { font-size: .85rem; color: var(--muted); }
.hero-media { position: relative; }
.hero-media img { position: relative; mix-blend-mode: multiply; animation: float 6s ease-in-out infinite; }
.hero-glow {
  position: absolute; inset: 10% 5%; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,122,26,.18), rgba(255,122,26,0) 70%);
  filter: blur(10px);
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* Trust */
.trust { border-block: 1px solid var(--line); background: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 28px 0; }
.trust-grid > div { display: flex; gap: 14px; align-items: flex-start; }
.trust-grid p { margin: 0; font-size: .88rem; color: var(--muted); }
.trust-grid strong { color: var(--ink); font-size: .95rem; }
.ico { font-size: 1.6rem; line-height: 1; }

/* Sections */
.section { padding: clamp(64px, 9vw, 104px) 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 40px; }

/* Filters */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 36px; }
.chip {
  border: 1.5px solid var(--line); background: #fff; color: var(--ink);
  padding: .55em 1.15em; border-radius: 999px; font: 500 .92rem Inter, sans-serif; cursor: pointer; transition: .15s;
}
.chip:hover { border-color: var(--navy); }
.chip.active { background: var(--navy); border-color: var(--navy); color: #fff; }

/* Product cards */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  display: flex; flex-direction: column; overflow: hidden; transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.card[hidden] { display: none; }
.card-media { position: relative; background: #fff; padding: 20px 20px 0; cursor: zoom-in; border: 0; }
.card-media img { aspect-ratio: 4 / 3; object-fit: contain; width: 100%; transition: transform .3s; }
.card:hover .card-media img { transform: scale(1.03); }
.badge {
  position: absolute; top: 16px; left: 16px; z-index: 1;
  background: var(--accent); color: #fff; font-size: .72rem; font-weight: 700;
  padding: .3em .75em; border-radius: 999px; letter-spacing: .03em;
}
.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { margin-bottom: .25em; }
.card-tagline { color: var(--muted); font-size: .9rem; margin-bottom: 14px; }
.specs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 16px; padding: 0; list-style: none; }
.specs li { background: var(--bg-alt); border-radius: 8px; padding: .25em .6em; font-size: .78rem; color: var(--navy-2); font-weight: 500; }
.variant-label { font-size: .78rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.variants { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.variant {
  border: 1.5px solid var(--line); background: #fff; border-radius: 10px; padding: .45em .75em;
  font: 500 .82rem Inter, sans-serif; cursor: pointer; color: var(--ink);
}
.variant.active { border-color: var(--accent); background: #fff6ef; color: #b44f00; }
.card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.price { font-size: 1.4rem; font-weight: 800; color: var(--navy); }
.price small { font-size: .72rem; font-weight: 600; color: var(--muted); margin-right: 3px; }
.card-actions { display: flex; gap: 8px; }
.price-note { text-align: center; font-size: .8rem; color: var(--muted); margin-top: 28px; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: #fff; border-radius: var(--radius); padding: 28px; border: 1px solid var(--line); }
.feature p { color: var(--muted); margin: 0; font-size: .95rem; }
.f-ico { font-size: 1.8rem; margin-bottom: 14px; }

/* Use cases */
.usecase-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.usecase {
  text-decoration: none; border-radius: var(--radius); overflow: hidden; background: #fff;
  border: 1px solid var(--line); display: flex; flex-direction: column; transition: .2s;
}
.usecase:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.usecase img { aspect-ratio: 4 / 3; object-fit: contain; padding: 16px; }
.usecase div { padding: 0 20px 20px; }
.usecase h3 { margin-bottom: .2em; }
.usecase p { margin: 0; color: var(--muted); font-size: .9rem; }

/* Compare */
.table-wrap { overflow-x: auto; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.compare { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 860px; }
.compare th, .compare td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare th { background: var(--navy); color: #fff; font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; }
.compare tbody tr:last-child td { border-bottom: 0; }
.compare tbody tr:hover { background: #fafbfd; }
.compare td:first-child { font-weight: 600; color: var(--navy); }
.compare a { color: var(--accent); font-weight: 600; text-decoration: none; white-space: nowrap; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 4px 0; }
summary {
  cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 600; font-size: 1.05rem; position: relative;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--accent); transition: transform .2s;
}
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
details p { color: var(--muted); padding-bottom: 12px; }

/* Support */
.support-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.contact-list li { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.contact-list span { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
.contact-list a { color: var(--navy); font-weight: 600; text-decoration: none; }
.contact-list a:hover { color: var(--accent); }
.contact-form { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); display: grid; gap: 16px; }
.contact-form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; }
.contact-form .opt { font-weight: 400; color: var(--muted); }
.contact-form input, .contact-form textarea {
  font: inherit; font-weight: 400; padding: .75em .9em; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink);
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.form-note { font-size: .85rem; color: var(--muted); margin: 0; }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--navy), var(--navy-2)); color: #fff; padding: 64px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { margin: 0; }

/* Footer */
.site-footer { background: #07121f; color: #aab4c3; padding: 56px 0 24px; font-size: .9rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer-grid h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.footer-grid a:not(.logo) { display: block; text-decoration: none; margin-bottom: 8px; }
.footer-grid a:not(.logo):hover { color: #fff; }
.footer-grid p { margin-top: 12px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 40px; padding-top: 20px; }
.footer-bottom p { margin: 0 0 6px; }
.small { font-size: .75rem; opacity: .7; }

/* Modal */
.modal {
  border: 0; border-radius: 20px; padding: 0; width: min(960px, calc(100% - 32px)); max-height: calc(100vh - 48px);
  box-shadow: var(--shadow-lg); color: var(--ink);
}
.modal::backdrop { background: rgba(7, 18, 31, .55); backdrop-filter: blur(3px); }
.modal-close {
  position: absolute; top: 12px; right: 14px; z-index: 2; width: 40px; height: 40px; border-radius: 50%;
  border: 0; background: var(--bg-alt); font-size: 1.5rem; cursor: pointer; line-height: 1;
}
.modal-body { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 36px; }
.modal-body h2 { font-size: 1.75rem; }
.modal-body img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }
.modal-body ul.hl { padding-left: 1.1em; margin: 0 0 20px; color: var(--muted); }
.modal-body ul.hl li { margin-bottom: 6px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .88rem; margin-bottom: 20px; }
.spec-table th, .spec-table td { text-align: left; padding: 8px 0; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--muted); font-weight: 500; width: 38%; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-media img { animation: none; }
}

/* Responsive */
@media (max-width: 1024px) {
  .product-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .usecase-grid, .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 16px 16px; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin-top: 12px; }
  .hero-grid, .support-grid, .modal-body { grid-template-columns: 1fr; }
  .hero-media { order: -1; max-width: 520px; margin-inline: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .modal-body { padding: 56px 20px 24px; gap: 16px; }
}
@media (max-width: 560px) {
  .product-grid, .feature-grid, .usecase-grid, .trust-grid { grid-template-columns: 1fr; }
  .hero-points { gap: 20px; }
  .cta-inner { justify-content: center; text-align: center; }
}