/* Northline Desk — storefront */
:root {
  --bg: #0b0f14;
  --bg-elev: #121820;
  --bg-card: #161d27;
  --border: #243041;
  --text: #e8eef6;
  --muted: #9aabbd;
  --accent: #5b9fff;
  --accent-hover: #7ab0ff;
  --accent-soft: rgba(91, 159, 255, 0.12);
  --ok: #3dd68c;
  --warn: #f0b429;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "SF Mono", "Cascadia Code", ui-monospace, monospace;
  --max: 1080px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; display: block; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
}
.logo:hover { color: var(--text); }
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #5b9fff, #3dd68c);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #0b0f14;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--text); }
.nav-cta {
  background: var(--accent) !important;
  color: #0b0f14 !important;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--accent-hover) !important; }
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.65rem;
  cursor: pointer;
  font-size: 0.85rem;
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -20% 20% auto -10%;
  height: 420px;
  background: radial-gradient(ellipse, rgba(91, 159, 255, 0.18), transparent 65%);
  pointer-events: none;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  max-width: 18ch;
}
.hero-lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 42ch;
  margin: 0 0 1.75rem;
}
.zh-secondary {
  font-size: 0.85em;
  color: var(--muted);
  font-weight: 400;
  opacity: 0.85;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary {
  background: var(--accent);
  color: #0b0f14;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #0b0f14;
}
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--muted);
  color: var(--text);
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.88rem; }

/* Sections */
section { padding: 3.25rem 0; }
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
}
.section-head p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  max-width: 48ch;
}

/* Cards */
.grid {
  display: grid;
  gap: 1.1rem;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
  border-color: #34506e;
  transform: translateY(-2px);
}
.card-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}
.card h3 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  flex: 1;
}
.price {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.price span {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.35rem;
}
.pill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.pill-list li {
  font-size: 0.88rem;
  color: var(--muted);
  padding-left: 1.1rem;
  position: relative;
}
.pill-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
}

/* Feature strip */
.features {
  background: var(--bg-elev);
  border-block: 1px solid var(--border);
}
.feature-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}
.feature-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Checkout note */
.checkout-box {
  background: linear-gradient(160deg, #152032, #121820);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem;
  margin-top: 2rem;
}
.checkout-box h2 { margin: 0 0 0.5rem; font-size: 1.25rem; }
.checkout-box p { margin: 0 0 0.75rem; color: var(--muted); }
.sku {
  font-family: var(--mono);
  font-size: 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  color: var(--warn);
}

/* Contact form */
.form {
  display: grid;
  gap: 0.9rem;
  max-width: 520px;
}
label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
}
input, textarea, select {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
textarea { min-height: 120px; resize: vertical; }
.form-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 2rem;
  margin-top: 1rem;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}
.site-footer h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}
.site-footer p, .site-footer a {
  color: var(--muted);
  font-size: 0.88rem;
}
.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}
.legal {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}

/* Page hero (inner) */
.page-hero {
  padding: 2.75rem 0 1.5rem;
}
.page-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  letter-spacing: -0.03em;
}
.page-hero p {
  margin: 0;
  color: var(--muted);
  max-width: 52ch;
}

/* Mobile */
@media (max-width: 860px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    gap: 0.75rem;
  }
  .nav-links.open { display: flex; }
  .nav { position: relative; }
  .hero { padding-top: 3rem; }
}