/* Keystone Technology Group LLC: shared site styles (navy #0a2351, teal #00918f). */
:root {
  --navy: #0a2351; --navy-2: #13306a; --teal: #00918f; --teal-2: #00a8a5; --ink: #18202d; --muted: #5a6577;
  --line: #e2e7ef; --soft: #f4f7fa; --bg: #ffffff; --radius: 14px;
  --shadow: 0 1px 2px rgba(10, 35, 81, .06), 0 8px 24px rgba(10, 35, 81, .06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-wrap: break-word; font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--teal); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 16px; top: 12px; background: #fff; padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 72px; }
.brand img { height: 40px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--navy); }
.site-nav .btn { color: #fff; }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; color: var(--navy); font: inherit; font-weight: 600; cursor: pointer; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 20px; border-radius: 10px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s, transform .15s; }
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-2); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .35); }
.btn-ghost:hover { border-color: #fff; }
.btn-outline { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-outline:hover { border-color: var(--navy); }
.btn-sm { padding: 8px 14px; font-size: 14px; }

/* Hero */
.hero { background: radial-gradient(1200px 500px at 85% -10%, rgba(0, 145, 143, .35), transparent 60%), linear-gradient(160deg, var(--navy) 0%, #0d2b62 60%, var(--navy-2) 100%); color: #fff; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-top: 88px; padding-bottom: 96px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #7fe3e0; margin-bottom: 14px; }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -.025em; margin: 0 0 18px; }
.hero p.lead { font-size: 19px; color: #c9d6ea; max-width: 560px; margin: 0 0 28px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-art { position: relative; justify-self: center; width: min(360px, 80%); aspect-ratio: 1; display: grid; place-items: center; }
.hero-art::before { content: ""; position: absolute; inset: 0; border-radius: 32px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); transform: rotate(-6deg); }
.hero-art img { position: relative; width: 62%; }
.trust { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; color: #c9d6ea; font-size: 14px; }
.trust span::before { content: "✓"; color: #7fe3e0; font-weight: 700; margin-right: 7px; }

/* Sections */
section.block { padding: 88px 0; }
section.alt { background: var(--soft); }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head .eyebrow { color: var(--teal); }
.section-head h2 { font-size: clamp(28px, 3.4vw, 38px); line-height: 1.15; letter-spacing: -.02em; color: var(--navy); margin: 0 0 12px; }
.section-head p { color: var(--muted); font-size: 17px; margin: 0; }

/* Product grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow); transition: transform .18s, box-shadow .18s; text-decoration: none; color: inherit; }
.card:hover { transform: translateY(-3px); box-shadow: 0 2px 4px rgba(10, 35, 81, .08), 0 16px 36px rgba(10, 35, 81, .12); }
.card-media { aspect-ratio: 16 / 10; background: linear-gradient(140deg, var(--navy), var(--navy-2)); display: grid; place-items: center; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-media img.ph { width: 72px; height: auto; object-fit: contain; opacity: .95; }
.card-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-kind { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); }
.card h3 { margin: 0; font-size: 19px; line-height: 1.3; color: var(--navy); }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card-foot { margin-top: auto; padding-top: 12px; display: flex; align-items: center; justify-content: space-between; }
.price { font-size: 20px; font-weight: 800; color: var(--navy); }
.card-foot .link { font-weight: 600; color: var(--teal); font-size: 15px; }
.empty { border: 1px dashed #c8d2e0; border-radius: var(--radius); padding: 48px 24px; text-align: center; background: #fff; }
.empty img { width: 56px; margin: 0 auto 16px; }
.empty h3 { margin: 0 0 8px; color: var(--navy); font-size: 22px; }
.empty p { color: var(--muted); margin: 0 auto 20px; max-width: 520px; }

/* Steps and features */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.step::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: rgba(0, 145, 143, .12); color: var(--teal); font-weight: 800; margin-bottom: 16px; }
.step h3 { margin: 0 0 6px; font-size: 18px; color: var(--navy); }
.step p { margin: 0; color: var(--muted); font-size: 15px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.points { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
.points li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; }
.points li::before { content: ""; width: 22px; height: 22px; margin-top: 3px; border-radius: 6px; background: var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 14px no-repeat; }
.points strong { display: block; color: var(--navy); }
.points span { color: var(--muted); font-size: 15px; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 36px; box-shadow: var(--shadow); }
.panel img { width: 100%; max-width: 360px; margin: 0 auto; }

/* Call to action band */
.band { background: linear-gradient(120deg, var(--navy), var(--navy-2)); color: #fff; border-radius: 20px; padding: 44px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.band h2 { margin: 0 0 6px; font-size: 28px; letter-spacing: -.01em; }
.band p { margin: 0; color: #c9d6ea; }

/* Article pages (privacy, terms) */
.page-head { background: var(--soft); border-bottom: 1px solid var(--line); }
.page-head .wrap { max-width: 800px; padding-top: 56px; padding-bottom: 40px; }
.page-head h1 { margin: 0 0 6px; font-size: clamp(30px, 4vw, 42px); color: var(--navy); letter-spacing: -.02em; }
.page-head p { margin: 0; color: var(--muted); }
.article { max-width: 760px; padding-top: 40px; padding-bottom: 72px; }
.article h2 { color: var(--navy); font-size: 21px; margin: 36px 0 8px; }
.article p, .article li { font-size: 16.5px; }
.article ul { padding-left: 22px; }
.note { background: var(--soft); border-left: 4px solid var(--teal); padding: 14px 18px; border-radius: 8px; }

/* Footer */
.site-footer { background: var(--navy); color: #b8c6dc; padding: 56px 0 28px; margin-top: 0; }
.site-footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-footer img { height: 44px; width: auto; margin-bottom: 14px; }
.site-footer h4 { color: #fff; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; margin: 6px 0 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: #b8c6dc; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .legal { border-top: 1px solid rgba(255, 255, 255, .12); margin-top: 40px; padding-top: 20px; font-size: 14px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

@media (max-width: 900px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .hero-art { display: none; }
  .steps { grid-template-columns: 1fr; }
  .site-footer .cols { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 720px) {
  .menu-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px 16px; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav .btn { margin-top: 12px; border-bottom: 0; }
  .brand img { height: 34px; }
  section.block { padding: 64px 0; }
  .band { padding: 32px 24px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }