:root {
--c-ink: #0a2540;
--c-ink-2: #1a2f4f;
--c-muted: #5a6b85;
--c-line: #e3e8f0;
--c-bg: #ffffff;
--c-bg-alt: #f5f7fb;
--c-accent: #2563eb;
--c-accent-2: #1d4ed8;
--c-success: #0d9488;
--c-supply: #0d9488;
--c-ssh: #7c3aed;
--radius: 12px;
--radius-lg: 18px;
--shadow-sm: 0 1px 2px rgba(10, 37, 64, 0.06), 0 1px 1px rgba(10, 37, 64, 0.04);
--shadow-md: 0 8px 24px rgba(10, 37, 64, 0.08);
--maxw: 1120px;
--gap: 24px;
--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
font-family: var(--font);
color: var(--c-ink);
background: var(--c-bg);
line-height: 1.6;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-accent); text-decoration: none; }
a:hover { color: var(--c-accent-2); text-decoration: underline; }

img { max-width: 100%; height: auto; }

.container {
max-width: var(--maxw);
margin: 0 auto;
padding: 0 24px;
}

.sr-only {
position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
border-bottom: 1px solid var(--c-line);
background: rgba(255, 255, 255, 0.85);
backdrop-filter: saturate(180%) blur(12px);
position: sticky; top: 0; z-index: 50;
}
.nav-wrap {
display: flex; align-items: center; justify-content: space-between;
height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--c-ink); text-decoration: none; font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark {
width: 34px; height: 34px; border-radius: 8px;
background: linear-gradient(135deg, var(--c-ink) 0%, var(--c-accent) 100%);
color: #fff; display: inline-flex; align-items: center; justify-content: center;
font-weight: 800; font-size: 18px; letter-spacing: 0.5px;
}
.brand-text { font-size: 1rem; letter-spacing: 0.2px; }
.brand-suffix { color: var(--c-muted); font-weight: 500; }

.site-nav ul {
list-style: none; display: flex; gap: 8px; margin: 0; padding: 0;
}
.site-nav a {
color: var(--c-ink); display: inline-block;
padding: 8px 12px; border-radius: 8px; font-weight: 500;
}
.site-nav a:hover { background: var(--c-bg-alt); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--c-accent); }
.nav-cta {
background: var(--c-ink); color: #fff !important;
}
.nav-cta:hover { background: var(--c-ink-2); }

.nav-toggle {
display: none; background: transparent; border: 0; cursor: pointer;
width: 40px; height: 40px; padding: 0; position: relative;
}
.nav-bar {
display: block; width: 22px; height: 2px; background: var(--c-ink);
margin: 4px auto; transition: transform 0.2s, opacity 0.2s;
}

/* Hero */
.hero {
padding: 80px 0 64px;
background:
radial-gradient(1100px 500px at 80% -10%, rgba(37, 99, 235, 0.12), transparent 60%),
radial-gradient(900px 400px at 0% 0%, rgba(10, 37, 64, 0.06), transparent 60%);
}
.hero-grid {
display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center;
}
.eyebrow {
text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem;
color: var(--c-accent); font-weight: 700; margin: 0 0 12px;
}
h1, h2, h3 { color: var(--c-ink); line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }
.lede { font-size: 1.1rem; color: var(--c-muted); max-width: 60ch; }

.hero-cta { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
display: inline-block; padding: 12px 20px; border-radius: 10px;
font-weight: 600; font-size: 0.98rem; cursor: pointer; border: 0;
text-decoration: none; transition: transform 0.05s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--c-ink); color: #fff; }
.btn-primary:hover { background: var(--c-ink-2); color: #fff; }
.btn-ghost {
background: transparent; color: var(--c-ink);
border: 1px solid var(--c-line);
}
.btn-ghost:hover { background: var(--c-bg-alt); color: var(--c-ink); }

.hero-stats {
margin: 36px 0 0; padding: 0;
display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.hero-stats div { border-left: 2px solid var(--c-line); padding-left: 12px; }
.hero-stats dt { color: var(--c-muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; }
.hero-stats dd { margin: 4px 0 0; font-weight: 600; color: var(--c-ink); }

.hero-card {
background: #fff; border: 1px solid var(--c-line);
border-radius: var(--radius-lg); padding: 24px;
box-shadow: var(--shadow-md);
}
.card-row {
display: flex; align-items: center; gap: 12px;
padding: 12px 0; border-bottom: 1px dashed var(--c-line); font-weight: 500;
}
.card-row:last-of-type { border-bottom: 0; }
.dot {
width: 10px; height: 10px; border-radius: 50%;
background: linear-gradient(135deg, var(--c-accent), var(--c-success));
}
.card-meta { color: var(--c-muted); font-size: 0.85rem; margin-top: 12px; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--c-bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 36px; text-align: center; }
.section-head .eyebrow { display: block; }

/* Page hero */
.page-hero {
padding: 64px 0 32px;
background: linear-gradient(180deg, var(--c-bg-alt) 0%, transparent 100%);
}
.page-hero .lede { max-width: 70ch; }

/* Grid */
.grid { display: grid; gap: var(--gap); }
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card, .service {
background: #fff;
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 24px;
box-shadow: var(--shadow-sm);
transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.card:hover, .service:hover {
transform: translateY(-2px);
box-shadow: var(--shadow-md);
}
.card p, .service p { color: var(--c-muted); margin: 0 0 8px; }
.service ul {
margin: 12px 0 0; padding: 0; list-style: none;
}
.service ul li {
padding: 6px 0 6px 22px; position: relative; color: var(--c-ink-2);
}
.service ul li::before {
content: ""; position: absolute; left: 0; top: 14px;
width: 8px; height: 8px; border-radius: 2px;
background: var(--c-accent);
}

/* Two column */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }

/* Check list */
.check-list { list-style: none; margin: 0; padding: 0; }
.check-list li {
position: relative; padding: 10px 0 10px 32px;
border-bottom: 1px solid var(--c-line);
}
.check-list li::before {
content: ""; position: absolute; left: 0; top: 14px;
width: 18px; height: 18px; border-radius: 50%;
background: var(--c-success);
box-shadow: inset 0 0 0 2px rgba(255,255,255,0.4);
}

/* CTA */
.cta {
padding: 56px 0;
background: linear-gradient(135deg, var(--c-ink) 0%, var(--c-ink-2) 100%);
color: #fff;
}
.cta h2 { color: #fff; margin: 0 0 8px; }
.cta p { color: rgba(255,255,255,0.85); margin: 0; }
.cta .btn-primary {
background: #fff; color: var(--c-ink);
}
.cta .btn-primary:hover { background: #e9eef7; color: var(--c-ink); }
.cta-inner {
display: flex; align-items: center; justify-content: space-between;
gap: 24px; flex-wrap: wrap;
}

/* Detail list */
.detail-list {
margin: 0; padding: 0;
display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
background: #fff; border: 1px solid var(--c-line);
border-radius: var(--radius); padding: 24px;
}
.detail-list dt { font-size: 0.8rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.detail-list dd { margin: 4px 0 0; font-weight: 600; color: var(--c-ink); }

/* Pill list */
.pill-list {
list-style: none; margin: 0; padding: 0;
display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.pill-list li {
background: #fff; border: 1px solid var(--c-line);
padding: 8px 14px; border-radius: 999px; font-weight: 500; color: var(--c-ink-2);
}

/* Steps */
.steps {
list-style: none; margin: 0; padding: 0;
counter-reset: step;
display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap);
}
.steps li {
background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
padding: 24px; position: relative; counter-increment: step;
}
.steps li::before {
content: counter(step, decimal-leading-zero);
display: block; color: var(--c-accent); font-weight: 800;
letter-spacing: 0.08em; margin-bottom: 8px;
}
.steps li strong { display: block; font-size: 1.1rem; margin-bottom: 6px; }
.steps li span { color: var(--c-muted); }

/* Contact form */
.contact-form {
background: #fff; border: 1px solid var(--c-line);
border-radius: var(--radius); padding: 24px;
}
.field { display: flex; flex-direction: column; margin-bottom: 16px; }
.field label { font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea {
font: inherit; color: var(--c-ink);
padding: 12px; border: 1px solid var(--c-line); border-radius: 8px;
background: #fff;
}
.field input:focus, .field textarea:focus {
outline: 2px solid var(--c-accent); outline-offset: 1px; border-color: transparent;
}
.form-status { min-height: 1.2em; margin: 12px 0 0; color: var(--c-success); font-weight: 600; }
.contact-info p { margin: 0 0 14px; }
.contact-info code {
background: var(--c-bg-alt); padding: 1px 6px; border-radius: 4px;
font-size: 0.9em;
}

/* ── Product cards (homepage + about page) ── */
.product-card {
background: #fff;
border: 1px solid var(--c-line);
border-radius: var(--radius-lg);
padding: 28px;
box-shadow: var(--shadow-sm);
display: flex; flex-direction: column; gap: 16px;
transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.product-card:hover {
transform: translateY(-2px);
box-shadow: var(--shadow-md);
}
.product-card-header {
display: flex; align-items: center; gap: 14px;
padding-bottom: 16px;
border-bottom: 1px solid var(--c-line);
}
.product-mark {
width: 42px; height: 42px; border-radius: 10px;
display: inline-flex; align-items: center; justify-content: center;
font-weight: 800; font-size: 1.2rem; color: #fff; flex-shrink: 0;
}
.product-card-supply .product-mark {
background: linear-gradient(135deg, var(--c-supply), #059669);
}
.product-card-ssh .product-mark {
background: linear-gradient(135deg, var(--c-ssh), #6d28d9);
}
.product-name {
font-size: 1.15rem; font-weight: 700; color: var(--c-ink);
}
.product-card p { color: var(--c-muted); margin: 0; }
.product-features {
list-style: none; margin: 0; padding: 0;
display: flex; flex-direction: column; gap: 6px;
}
.product-features li {
padding: 6px 0 6px 22px; position: relative; color: var(--c-ink-2);
font-size: 0.95rem;
}
.product-features li::before {
content: ""; position: absolute; left: 0; top: 13px;
width: 8px; height: 8px; border-radius: 2px;
background: var(--c-accent);
}

/* ── Product showcase (products page) ── */
.product-showcase {
background: #fff;
border: 1px solid var(--c-line);
border-radius: var(--radius-lg);
overflow: hidden;
box-shadow: var(--shadow-md);
}
.product-showcase-header {
display: flex; align-items: center; gap: 20px;
padding: 28px 32px;
}
.product-showcase-supply {
background: linear-gradient(135deg, rgba(13,148,136,0.08) 0%, rgba(5,150,105,0.05) 100%);
border-bottom: 2px solid rgba(13,148,136,0.2);
}
.product-showcase-ssh {
background: linear-gradient(135deg, rgba(124,58,237,0.08) 0%, rgba(109,40,217,0.05) 100%);
border-bottom: 2px solid rgba(124,58,237,0.2);
}
.product-showcase-mark {
width: 56px; height: 56px; border-radius: 14px;
display: inline-flex; align-items: center; justify-content: center;
font-weight: 800; font-size: 1.6rem; color: #fff; flex-shrink: 0;
background: linear-gradient(135deg, var(--c-supply), #059669);
}
.product-showcase-mark-ssh {
background: linear-gradient(135deg, var(--c-ssh), #6d28d9);
}
.product-showcase-name {
font-size: 1.8rem; font-weight: 800; color: var(--c-ink); margin: 0 0 4px;
}
.product-showcase-tagline {
color: var(--c-muted); margin: 0; font-size: 1rem;
}
.product-showcase-body {
padding: 32px;
display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start;
}
.product-showcase-copy p { color: var(--c-muted); margin: 0 0 14px; }
.product-showcase-copy .btn { margin-top: 8px; }
.product-features-grid {
display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.product-feature-block {
background: var(--c-bg-alt);
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 16px 18px;
}
.product-feature-block h4 {
font-size: 0.95rem; font-weight: 700; color: var(--c-ink); margin: 0 0 6px;
}
.product-feature-block p {
font-size: 0.88rem; color: var(--c-muted); margin: 0;
}

/* Product stats row */
.product-stats {
display: flex; gap: 24px; margin: 16px 0 20px; flex-wrap: wrap;
}
.product-stats > div {
display: flex; flex-direction: column; gap: 2px;
border-left: 2px solid var(--c-line); padding-left: 12px;
}
.product-stats strong {
font-size: 1.4rem; font-weight: 800; color: var(--c-ink); line-height: 1;
}
.product-stats span {
font-size: 0.78rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.08em;
}

/* Section divider */
.section-divider {
height: 1px; background: var(--c-line); margin: 0;
}

/* Footer */
.site-footer {
border-top: 1px solid var(--c-line);
padding: 32px 0;
background: var(--c-bg-alt);
}
.footer-grid {
display: grid;
grid-template-columns: 1fr 1fr 1fr;
gap: 24px; align-items: center;
}
.footer-links {
list-style: none; margin: 0; padding: 0;
display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}
.footer-links a { color: var(--c-ink); }
.muted { color: var(--c-muted); margin: 0; }
.small { font-size: 0.85rem; }
.site-footer .small { text-align: right; }

/* 404 */
.not-found { padding: 120px 0; text-align: center; }
.not-found .btn + .btn { margin-left: 8px; }

/* Responsive */
@media (max-width: 900px) {
.hero-grid { grid-template-columns: 1fr; }
.grid-2, .grid-3 { grid-template-columns: 1fr 1fr; }
.two-col { grid-template-columns: 1fr; gap: 24px; }
.steps { grid-template-columns: 1fr 1fr; }
.detail-list { grid-template-columns: 1fr; }
.footer-grid { grid-template-columns: 1fr; text-align: center; }
.footer-links { justify-content: center; }
.site-footer .small { text-align: center; }
.product-showcase-body { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 640px) {
.nav-toggle { display: inline-block; }
.site-nav ul {
display: none; position: absolute; top: 68px; left: 0; right: 0;
flex-direction: column; gap: 0;
background: #fff; border-bottom: 1px solid var(--c-line);
padding: 8px 16px;
}
.site-nav ul.open { display: flex; }
.site-nav a { display: block; padding: 12px; }
.hero { padding: 56px 0 40px; }
.section { padding: 48px 0; }
.grid-2, .grid-3 { grid-template-columns: 1fr; }
.steps { grid-template-columns: 1fr; }
.hero-stats { grid-template-columns: 1fr; }
.cta-inner { flex-direction: column; align-items: flex-start; }
.product-showcase-header { padding: 20px; }
.product-showcase-body { padding: 20px; }
.product-features-grid { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
:root {
--c-ink: #e8edf5;
--c-ink-2: #d6deec;
--c-muted: #9aa7bd;
--c-line: #1f2a3e;
--c-bg: #0b1220;
--c-bg-alt: #111a2c;
--c-accent: #60a5fa;
--c-accent-2: #3b82f6;
}
.site-header { background: rgba(11, 18, 32, 0.75); }
.card, .service, .hero-card, .contact-form, .detail-list, .pill-list li, .steps li,
.product-card, .product-showcase, .product-feature-block {
background: #0f172a; border-color: var(--c-line);
}
.nav-cta { background: var(--c-accent); }
.nav-cta:hover { background: var(--c-accent-2); }
.btn-primary { background: var(--c-accent); color: #0b1220; }
.btn-primary:hover { background: var(--c-accent-2); color: #0b1220; }
.cta { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); }
.cta .btn-primary { background: var(--c-accent); color: #0b1220; }
.field input, .field textarea { background: #0f172a; color: var(--c-ink); }
.product-showcase-supply { background: linear-gradient(135deg, rgba(13,148,136,0.15) 0%, rgba(5,150,105,0.08) 100%); }
.product-showcase-ssh { background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(109,40,217,0.08) 100%); }
}