/* BrieflySec Landing — The Obsidian Lens */

:root {
  --surface: #10141a;
  --surface-container-lowest: #0a0e14;
  --surface-container-low: #181c22;
  --surface-container: #1c2026;
  --surface-container-high: #262a31;
  --surface-container-highest: #31353c;
  --surface-variant: #31353c;
  --on-surface: #dfe2eb;
  --on-surface-variant: #bbc9cf;
  --outline: #859399;
  --outline-variant: #3c494e;
  --primary: #a4e6ff;
  --primary-container: #00d1ff;
  --primary-fixed-dim: #4cd6ff;
  --on-primary: #003543;
  --secondary: #baffe6;
  --secondary-fixed: #2effcf;
  --secondary-fixed-dim: #00e0b4;
  --tertiary: #ffd1ce;
  --error: #ffb4ab;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

::selection {
  background: var(--primary-container);
  color: var(--on-primary);
}

body {
  background-color: var(--surface);
  color: var(--on-surface);
  font-family: 'Manrope', sans-serif;
  background-image: radial-gradient(rgba(60, 73, 78, 0.06) 1px, transparent 1px);
  background-size: 20px 20px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-container); }

/* ── Nav ── */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background: rgba(16, 20, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  font-family: 'Space Grotesk', sans-serif;
}
.nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--on-surface);
}
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: var(--on-surface-variant); font-size: 0.875rem; }
.nav-links a:hover { color: var(--primary); }

.btn-primary {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: var(--on-primary);
  font-weight: 700;
  border-radius: 0.125rem;
  border: none;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  transition: transform 0.1s;
}
.btn-primary:hover { color: var(--on-primary); }
.btn-primary:active { transform: scale(0.95); }

.btn-secondary {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: transparent;
  color: var(--primary);
  font-weight: 700;
  border-radius: 0.125rem;
  border: 1px solid rgba(60, 73, 78, 0.3);
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  transition: background 0.2s;
}
.btn-secondary:hover { background: var(--surface-container); color: var(--primary); }

.btn-lg { padding: 0.875rem 2rem; font-size: 1.05rem; }

/* ── Hero ── */
.hero {
  padding: 8rem 1.5rem 5rem;
  max-width: 72rem;
  margin: 0 auto;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: var(--surface-container-high);
  border: 1px solid rgba(60, 73, 78, 0.2);
  margin-bottom: 2rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
}
.hero-badge .pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--secondary-fixed);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.125rem;
  color: var(--on-surface-variant);
  max-width: 38rem;
  margin: 0 auto 2.5rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Screenshot ── */
.screenshot-section {
  max-width: 64rem;
  margin: 0 auto 6rem;
  padding: 0 1.5rem;
}
.screenshot-frame {
  position: relative;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid rgba(60, 73, 78, 0.15);
  box-shadow: 0 0 80px rgba(0, 209, 255, 0.06);
}
.screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
}
.screenshot-glow {
  position: absolute;
  inset: -2rem;
  background: radial-gradient(ellipse at center, rgba(0, 209, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* ── Features grid ── */
.features {
  max-width: 72rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}
.features-header {
  text-align: center;
  margin-bottom: 4rem;
}
.features-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.features-header p {
  color: var(--on-surface-variant);
  max-width: 32rem;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--surface-container-low);
  padding: 2rem;
  border-radius: 0.125rem;
  transition: background 0.2s;
}
.feature-card:hover { background: var(--surface-container); }
.feature-icon {
  font-size: 2rem;
  color: var(--primary-fixed-dim);
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

/* ── CTA section ── */
.cta-section {
  padding: 4rem 1.5rem 6rem;
}
.cta-box {
  max-width: 48rem;
  margin: 0 auto;
  background: var(--surface-container-high);
  padding: 4rem 2rem;
  text-align: center;
  border-radius: 0.125rem;
  border: 1px solid rgba(60, 73, 78, 0.1);
  position: relative;
  overflow: hidden;
}
.cta-box h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.cta-box p {
  color: var(--on-surface-variant);
  margin-bottom: 2rem;
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}
.cta-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  font-family: 'Inter', sans-serif;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid rgba(60, 73, 78, 0.15);
  background: var(--surface);
  padding: 2rem 1.5rem;
  font-size: 0.8125rem;
  color: rgba(223, 226, 235, 0.5);
}
.footer-inner {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: rgba(223, 226, 235, 0.5); font-size: 0.8125rem; }
.footer-links a:hover { color: var(--primary); }

/* ── Legal / Content pages ── */
.page-content {
  max-width: 48rem;
  margin: 0 auto;
  padding: 8rem 1.5rem 4rem;
}
.page-content h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.page-content .subtitle {
  color: var(--on-surface-variant);
  margin-bottom: 3rem;
  font-size: 1rem;
}
.page-content h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
}
.page-content p, .page-content li {
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}
.page-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
.page-content a { color: var(--primary); }

.coming-soon {
  text-align: center;
  padding: 4rem 0;
}
.coming-soon .icon {
  font-size: 3rem;
  color: var(--primary-fixed-dim);
  margin-bottom: 1rem;
}
.coming-soon h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--on-surface);
}
.coming-soon p {
  color: var(--on-surface-variant);
  max-width: 24rem;
  margin: 0 auto;
}

/* ── Contact form ── */
.contact-form { max-width: 28rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface-container-lowest);
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--on-surface);
  padding: 0.75rem;
  font-family: 'Manrope', sans-serif;
  font-size: 0.9375rem;
  border-radius: 0.125rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-bottom-color: var(--primary-fixed-dim);
}
.form-group textarea { resize: vertical; min-height: 6rem; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav-links { gap: 0.75rem; }
  .hero { padding-top: 6rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}