/* JSEQ Systems — base styles */

:root {
  --color-bg: #0b1220;
  --color-bg-alt: #111a2e;
  --color-surface: #16213a;
  --color-border: #253355;
  --color-text: #e6ebf5;
  --color-text-muted: #a4b0c9;
  --color-primary: #3ea6ff;
  --color-primary-dark: #1f7fd6;
  --color-accent: #5fe3c0;
  --radius: 10px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}

.nav-brand .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  padding: 8px 10px;
  cursor: pointer;
}

/* Hero */

.hero {
  padding: 96px 0 72px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  margin: 0 0 18px;
  line-height: 1.15;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #05121f;
}

.btn-primary:hover {
  background: var(--color-accent);
  color: #05121f;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Sections */

.section {
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
}

.section-header {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 12px;
}

.section-header p {
  color: var(--color-text-muted);
  margin: 0;
}

.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.card .icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(62, 166, 255, 0.15);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 16px;
}

/* Product callout */

.product-callout {
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.product-callout .copy {
  flex: 1 1 320px;
}

.product-callout h3 {
  margin: 0 0 10px;
  font-size: 1.4rem;
}

.product-callout p {
  color: var(--color-text-muted);
  margin: 0 0 20px;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(95, 227, 192, 0.15);
  color: var(--color-accent);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

/* Stats */

.stats {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  text-align: center;
}

.stat .num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat .label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Timeline / about */

.timeline {
  border-left: 2px solid var(--color-border);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.timeline-item h4 {
  margin: 0 0 6px;
}

.timeline-item p {
  margin: 0;
  color: var(--color-text-muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Mobile nav */

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    gap: 16px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .site-header {
    position: sticky;
  }

  .nav {
    position: relative;
  }
}