/* ── Reset & Root ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1b2d;
  --bg-mid: #162035;
  --bg-card: #1a2640;
  --fg: #e8edf5;
  --fg-muted: #8899b0;
  --accent: #f5a623;
  --accent-dim: rgba(245,166,35,0.12);
  --green: #5ec97a;
  --border: rgba(255,255,255,0.07);
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }

/* ── Typography ── */
h1, h2, h3 { font-family: 'DM Serif Display', Georgia, serif; font-weight: 400; line-height: 1.15; }

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2.5rem;
  background: rgba(15,27,45,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 8rem 2.5rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero-atmosphere {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(245,166,35,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 20%, rgba(94,201,122,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content { position: relative; }
.hero-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.hero-lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 42ch;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.hero-meta { display: flex; gap: 1rem; align-items: center; }
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #0f1b2d;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.hero-cta:hover { opacity: 0.85; }

/* Radar preview illustration */
.hero-radar-preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 340px;
  height: 340px;
  margin: 0 auto;
}
.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245,166,35,0.18);
}
.radar-ring-1 { width: 120px; height: 120px; }
.radar-ring-2 { width: 200px; height: 200px; }
.radar-ring-3 { width: 280px; height: 280px; }
.radar-center-dot {
  position: absolute;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(245,166,35,0.5);
}
.radar-sweep {
  position: absolute;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(245,166,35,0.12) 40deg, transparent 80deg);
  animation: sweep 6s linear infinite;
}
@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ── Features ── */
.features {
  padding: 6rem 2.5rem;
  background: var(--bg-mid);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 1100px;
  margin: 0 auto;
}
.feature-card {
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: background 0.2s;
}
.feature-card:hover { background: #1e2d4a; }
.feature-icon {
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--fg);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── Radar Section ── */
.radar-section {
  padding: 8rem 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.radar-visual {
  position: relative;
  width: 320px;
  height: 320px;
  margin: 0 auto;
}
.radar-large-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245,166,35,0.12);
}
.ring-1 { width: 80px; height: 80px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.ring-2 { width: 150px; height: 150px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.ring-3 { width: 220px; height: 220px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.ring-4 { width: 270px; height: 270px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.ring-5 { width: 318px; height: 318px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.radar-center {
  position: absolute;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  box-shadow: 0 0 20px rgba(245,166,35,0.6);
}
.radar-sweep-large {
  position: absolute;
  width: 318px; height: 318px;
  border-radius: 50%;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: conic-gradient(from 200deg, transparent 0deg, rgba(94,201,122,0.1) 60deg, transparent 120deg);
  animation: sweep-large 8s linear infinite;
}
@keyframes sweep-large {
  from { transform: translate(-50%,-50%) rotate(0deg); }
  to { transform: translate(-50%,-50%) rotate(360deg); }
}
.radar-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
}
.blob-1 { width: 60px; height: 40px; background: rgba(94,201,122,0.25); top: 30%; left: 60%; }
.blob-2 { width: 45px; height: 30px; background: rgba(245,166,35,0.2); top: 55%; left: 35%; }
.blob-3 { width: 35px; height: 25px; background: rgba(94,201,122,0.15); top: 70%; left: 70%; }
.radar-content { }
.section-eyebrow {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.radar-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin-bottom: 1.25rem;
}
.radar-desc { color: var(--fg-muted); margin-bottom: 1rem; }
.radar-data { font-size: 0.78rem; color: var(--fg-muted); opacity: 0.6; line-height: 1.5; }

/* ── Philosophy ── */
.philosophy {
  background: var(--bg-mid);
  padding: 6rem 2.5rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.philosophy-inner { max-width: 1100px; margin: 0 auto; }
.philosophy-quote {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-style: italic;
  color: var(--fg);
  text-align: center;
  margin-bottom: 4rem;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}
.philosophy-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}
.pillar-num {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.pillar h4 { font-size: 1rem; margin-bottom: 0.6rem; font-family: 'DM Sans', sans-serif; font-weight: 600; }
.pillar p { font-size: 0.88rem; color: var(--fg-muted); line-height: 1.65; }

/* ── Closing ── */
.closing {
  padding: 8rem 2.5rem;
  text-align: center;
}
.closing-inner { max-width: 600px; margin: 0 auto; }
.closing-eyebrow {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.closing-headline {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}
.closing-sub {
  color: var(--fg-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.closing-cta {
  display: inline-block;
  background: var(--accent);
  color: #0f1b2d;
  padding: 0.9rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: opacity 0.2s;
}
.closing-cta:hover { opacity: 0.85; }

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  align-items: center;
  justify-content: space-between;
}
.footer-name {
  font-family: 'DM Serif Display', serif;
  font-size: 1rem;
  display: block;
  margin-bottom: 0.25rem;
}
.footer-tagline {
  font-size: 0.75rem;
  color: var(--fg-muted);
}
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a { color: var(--fg-muted); font-size: 0.85rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--fg); }
.footer-copy { font-size: 0.75rem; color: var(--fg-muted); opacity: 0.5; width: 100%; }

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav { padding: 1rem 1.25rem; }
  .nav-tagline { display: none; }
  .hero {
    grid-template-columns: 1fr;
    padding: 7rem 1.25rem 3rem;
    text-align: center;
    min-height: auto;
  }
  .hero-lede { margin-left: auto; margin-right: auto; }
  .hero-meta { justify-content: center; }
  .hero-radar-preview { display: none; }
  .features-grid, .philosophy-pillars { grid-template-columns: 1fr; }
  .radar-section { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
  .radar-visual { width: 240px; height: 240px; }
  .ring-1 { width: 60px; height: 60px; }
  .ring-2 { width: 120px; height: 120px; }
  .ring-3 { width: 180px; height: 180px; }
  .ring-4 { width: 215px; height: 215px; }
  .ring-5 { width: 238px; height: 238px; }
  .radar-sweep-large { width: 238px; height: 238px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}