:root {
  --bg: #000000;
  --bg-alt: #0c0c0c;
  --fg: #f9fafb;
  --muted: #9ca3af;
  --accent: #d90a2c;
  --accent-soft: rgba(217,10,44,0.18);
  --border: #27272f;
  --radius: 12px;
  --shadow-soft: 0 18px 45px rgba(0,0,0,0.55);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Roboto", "Segoe UI", sans-serif;
}

/* RESET */

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

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

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #020617 0, #000 70%);
  color: var(--fg);
  line-height: 1.7;
}

/* LINKS & TEXT */

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

a:hover {
  text-decoration: underline;
}

/* LAYOUT */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(0,0,0,0.92), rgba(0,0,0,0.5));
  border-bottom: 1px solid rgba(148,163,184,0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.nav {
  display: flex;
  gap: 1.6rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--fg);
  opacity: 0.8;
}

.nav a:hover {
  opacity: 1;
}

/* HERO */

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  margin: 0 0 1rem;
}

.hero p {
  max-width: 720px;
  margin: 0 0 1.75rem;
  color: var(--muted);
}

.btn-primary {
  display: inline-block;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 16px 36px rgba(217,10,44,0.55);
}

.btn-primary:hover {
  text-decoration: none;
  filter: brightness(1.06);
}

/* SECTIONS */

.section {
  padding: 3.2rem 0;
}

.section-alt {
  background: radial-gradient(circle at top left, #020617 0, #030712 40%, #000 100%);
}

.section h2 {
  font-size: 1.6rem;
  margin: 0 0 1.8rem;
}

/* GRID / CARDS */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.6rem;
}

.card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 1.6rem 1.5rem;
}

.card h3 {
  margin: 0 0 0.8rem;
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* CONTACT */

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.contact-list li {
  color: var(--fg);
}

/* FOOTER */

.site-footer {
  border-top: 1px solid rgba(148,163,184,0.25);
  padding: 1.4rem 0 2.1rem;
  font-size: 0.85rem;
  color: #9ca3af;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* RESPONSIVE */

@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
    row-gap: 0.5rem;
  }
  .nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    font-size: 0.8rem;
    gap: 1rem;
  }
  .hero {
    padding-top: 3.5rem;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}