/* BellexFire Launch — Layout System */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.6rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1rem, 2vw, 1.3rem); }

p { line-height: 1.75; }

a { color: inherit; }

.text-gradient {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--launch-accent);
  margin-bottom: 14px;
}

.section-heading { margin-bottom: 16px; }

.section-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 660px;
  margin-bottom: 56px;
  line-height: 1.8;
}

section { padding: 100px 0; position: relative; }

/* ── Header ────────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-default);
  transition: border-color var(--transition);
}

header.scrolled { border-bottom-color: var(--border-glow); }

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

.nav-logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.nav-logo .accent { color: var(--launch-accent); }

nav { display: flex; align-items: center; gap: 28px; }

.nav-links { display: flex; align-items: center; gap: 28px; }

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }

.btn-nav {
  font-size: 0.84rem;
  padding: 8px 22px;
  background: var(--launch-accent);
  color: var(--text-inverse) !important;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: opacity var(--transition);
  white-space: nowrap;
}

.btn-nav:hover { opacity: 0.85; }

/* ── Footer ────────────────────────────────────────────────── */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-default);
  padding: 72px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand .nav-logo {
  font-size: 1.1rem;
  display: block;
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-contact a {
  display: inline-block;
  color: var(--launch-accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: opacity var(--transition);
}

.footer-contact a:hover { opacity: 0.75; }

.footer-links h4 {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-links a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--launch-accent); }

.footer-bottom {
  border-top: 1px solid var(--border-default);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p, .footer-bottom a {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
}

.footer-bottom a:hover { color: var(--launch-accent); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  section { padding: 72px 0; }
  .container { padding: 0 16px; }
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.5rem; }
}