/* Netsera — clean, practical static site */
:root {
  --bg: #07101d;
  --bg2: #0b1627;
  --surface: rgba(14, 24, 42, 0.9);
  --surface-soft: rgba(16, 29, 51, 0.58);
  --line: rgba(148, 163, 184, 0.18);
  --text: #edf4ff;
  --muted: #a7b4c8;
  --soft: #d5e4ff;
  --accent: #73d0ff;
  --accent-2: #7c9dff;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  --radius: 22px;
  --radius-sm: 16px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(115, 208, 255, 0.06), transparent 30%),
    linear-gradient(180deg, var(--bg), var(--bg2) 54%, #09111d 100%);
  line-height: 1.6;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(7, 16, 29, 0.82);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}
.topbar-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 780;
  letter-spacing: 0.01em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04111f;
  box-shadow: 0 10px 30px rgba(115, 208, 255, 0.18);
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--muted);
  font-size: 0.96rem;
}
.nav a { text-decoration: none; }
.nav a:hover { color: var(--text); }

main { padding: 34px 0 72px; }
.section { padding: 34px 0; }
.page-hero { max-width: 880px; }
.hero {
  padding-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 28px;
  align-items: start;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 760;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(2.55rem, 5.8vw, 4.85rem);
  line-height: 1;
  letter-spacing: -0.052em;
  margin-bottom: 18px;
}
h2 {
  font-size: clamp(1.45rem, 2.2vw, 2.15rem);
  line-height: 1.14;
  letter-spacing: -0.035em;
  margin-bottom: 16px;
}
h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.lead {
  font-size: 1.13rem;
  max-width: 64ch;
  color: var(--soft);
}
.subtle, .small { color: var(--muted); }
.small { font-size: 0.94rem; }
.section-heading { max-width: 850px; margin-bottom: 18px; }

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}
.pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(16, 29, 51, 0.58);
  color: var(--soft);
  border-radius: 999px;
  padding: 8px 13px;
  font-size: 0.92rem;
}
.pill strong { color: var(--text); font-weight: 720; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.align-end { justify-content: flex-end; }
.button, .button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 740;
  border: 1px solid transparent;
}
.button {
  background: linear-gradient(135deg, var(--accent), #9ae6ff);
  color: #07111d;
  box-shadow: 0 12px 28px rgba(115, 208, 255, 0.16);
}
.button-ghost {
  border-color: var(--line);
  background: rgba(16, 29, 51, 0.42);
  color: var(--text);
}
.button:hover, .button-ghost:hover { transform: translateY(-1px); }

.panel,
.story-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel.pad { padding: 22px; }
.story-panel { padding: 28px; }
.story-panel .section-heading { margin-bottom: 0; }
.hero-card {
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(16, 29, 51, 0.95), rgba(16, 29, 51, 0.84)),
    radial-gradient(circle at top right, rgba(115, 208, 255, 0.07), transparent 36%);
}
.photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.photo-card {
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.photo-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.photo-card figcaption {
  padding: 12px 14px 14px;
  color: var(--muted);
  font-size: 0.92rem;
}
.kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--accent);
  font-weight: 760;
  margin-bottom: 10px;
}

.cards, .two-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.two-col { grid-template-columns: 1fr 1fr; }
.card {
  padding: 22px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.card p { color: var(--muted); }
.card p strong { color: var(--soft); }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); }
.service-card { min-height: 100%; }
.quiet-card { background: rgba(7, 16, 29, 0.34); }

.callout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  align-items: center;
  padding: 24px;
}
.callout .lead { margin-bottom: 0; }

.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.step {
  padding: 18px;
  border-radius: 18px;
  background: rgba(7, 16, 29, 0.28);
  border: 1px solid var(--line);
}
.step .num {
  display: inline-flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  margin-bottom: 12px;
  background: rgba(115, 208, 255, 0.16);
  color: var(--accent);
  font-weight: 800;
}
.step p { color: var(--muted); margin-bottom: 0; }

.list-clean { list-style: none; padding: 0; margin: 0; }
.list-clean li {
  padding: 13px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  color: var(--soft);
}
.list-clean li:first-child { border-top: 0; }

.footer {
  padding: 34px 0 44px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero, .cards, .two-col, .steps, .callout, .photo-grid { grid-template-columns: 1fr; }
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  h1 { font-size: clamp(2.35rem, 11vw, 3.65rem); }
  .align-end { justify-content: flex-start; }
}