/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0C0C0E;
  --surface: #141418;
  --border: rgba(255,255,255,0.06);
  --text: #F5F0E8;
  --text-muted: rgba(245,240,232,0.45);
  --accent: #FF9500;
  --accent-dim: rgba(255,149,0,0.12);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,149,0,0.14) 0%, transparent 70%);
  top: -100px; left: 60%;
  transform: translateX(-50%);
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,149,0,0.06) 0%, transparent 70%);
  bottom: 0; right: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 0%, black 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 520px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-dim);
  border: 1px solid rgba(255,149,0,0.2);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.75rem;
}

.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(3rem, 5.5vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 460px;
  margin-bottom: 2rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hero-tags span {
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(255,149,0,0.15);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
}

/* === RADAR VISUAL === */
.hero-visual {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radar-container {
  position: relative;
  width: 340px;
  height: 340px;
}

.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,149,0,0.15);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.radar-ring-1 { width: 120px; height: 120px; }
.radar-ring-2 { width: 220px; height: 220px; border-color: rgba(255,149,0,0.08); }
.radar-ring-3 { width: 320px; height: 320px; border-color: rgba(255,149,0,0.04); }

.radar-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 52px; height: 52px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 32px rgba(255,149,0,0.5), 0 0 60px rgba(255,149,0,0.2);
}

.radar-sweep {
  position: absolute;
  width: 160px; height: 3px;
  top: 50%; left: 50%;
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(255,149,0,0.5), transparent);
  animation: sweep 4s linear infinite;
}
@keyframes sweep {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

.radar-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.node-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.node-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(255,149,0,0.6);
}

.node-twitter { top: 5%; left: 50%; transform: translateX(-50%); flex-direction: column; gap: 0.3rem; }
.node-hn     { top: 50%; right: 5%; transform: translateY(-50%); flex-direction: row-reverse; }
.node-ph     { bottom: 5%; left: 50%; transform: translateX(-50%); flex-direction: column-reverse; gap: 0.3rem; }
.node-email  { top: 50%; left: 5%; transform: translateY(-50%); }

/* === PROBLEM === */
.problem {
  padding: 7rem 2rem;
  border-top: 1px solid var(--border);
}
.problem-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.problem-tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.problem-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.problem-body {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 1rem;
}

/* === HOW IT WORKS === */
.how {
  padding: 7rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.how-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.how-tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
  margin-bottom: 1rem;
}
.how-headline {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 3.5rem;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.how-step {
  background: var(--bg);
  padding: 2.25rem 2rem;
  border: 1px solid var(--border);
  border-radius: 2px;
}
.step-num {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.6;
  margin-bottom: 1.25rem;
}
.step-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.step-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* === DIFFERENT === */
.different {
  padding: 7rem 2rem;
  border-top: 1px solid var(--border);
}
.diff-inner { max-width: 700px; margin: 0 auto; }
.diff-tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.diff-headline {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}
.diff-body {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.diff-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.9rem;
}
.diff-check {
  width: 24px; height: 24px;
  background: var(--accent-dim);
  border: 1px solid rgba(255,149,0,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* === CLOSING === */
.closing {
  padding: 7rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}
.closing-inner { max-width: 600px; margin: 0 auto; }
.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.closing-body {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* === FOOTER === */
.footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand { display: flex; flex-direction: column; gap: 0.2rem; }
.footer-logo {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
}
.footer-tagline { font-size: 0.8rem; color: var(--text-muted); }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; padding-top: 7rem; min-height: auto; }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
  .how-steps { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 1rem; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero { padding: 6rem 1.25rem 3rem; }
  .problem, .how, .different, .closing { padding: 4rem 1.25rem; }
}