/* LIGO Technology Limited – Company site styles */

:root {
  --color-bg: #0c0c0e;
  --color-bg-alt: #141418;
  --color-text: #e8e8ec;
  --color-text-muted: #8a8a94;
  --color-accent: #c9a962;
  --color-accent-dim: rgba(201, 169, 98, 0.15);
  --color-border: rgba(255, 255, 255, 0.08);
  --font-serif: "Instrument Serif", Georgia, serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --max-width: 72rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  background: rgba(12, 12, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: var(--space-lg);
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: calc(80px + var(--space-2xl)) 0 var(--space-2xl);
  overflow: hidden;
}

.hero-accent {
  position: absolute;
  top: 20%;
  right: -10%;
  width: 50vmin;
  height: 50vmin;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 32rem;
  margin: 0;
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  margin: 0 0 var(--space-lg);
  letter-spacing: -0.01em;
}

/* About */
.about-lead {
  font-size: 1.25rem;
  color: var(--color-text);
  max-width: 42rem;
  margin: 0 0 var(--space-md);
}

.about-body {
  color: var(--color-text-muted);
  max-width: 42rem;
  margin: 0;
}

/* Focus grid */
.focus-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.focus-card {
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.focus-card:hover {
  border-color: rgba(201, 169, 98, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.focus-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.focus-card h3 {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

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

/* Contact */
.contact-block {
  margin-bottom: var(--space-lg);
}

.contact-block:last-child {
  margin-bottom: 0;
}

.contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xs);
}

.contact-value,
.contact-address {
  font-size: 1rem;
  color: var(--color-text);
  margin: 0;
  font-style: normal;
}

.contact-address {
  line-height: 1.7;
}

.contact-link {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-link:hover {
  color: var(--color-text);
}

/* Footer */
.site-footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
}

.site-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .nav {
    gap: var(--space-md);
  }

  .hero {
    min-height: 60vh;
  }
}