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

:root {
  --bg: #0D0D0D;
  --surface: #141414;
  --border: #242424;
  --fg: #FFFFFF;
  --fg-muted: #888888;
  --accent: #CCFF00;
  --accent-dim: rgba(204, 255, 0, 0.12);
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.site-header nav { display: flex; gap: 32px; }
.site-header nav a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 14px;
  font-family: var(--font-head);
  font-weight: 500;
  transition: color 0.2s;
}
.site-header nav a:hover { color: var(--fg); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(204,255,0,0.05) 0%, transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(204,255,0,0.03) 0%, transparent 40%),
    var(--bg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.hero-inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.overline {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.headline {
  font-family: var(--font-head);
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 24px;
}

.hero-tagline {
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border: 1px solid rgba(204,255,0,0.2);
  display: inline-block;
  border-radius: 2px;
}

/* Stik product visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.stik-container {
  position: relative;
  z-index: 2;
}

.stik-body {
  width: 220px;
  height: 120px;
  background: #1A1A1A;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow:
    0 0 0 1px rgba(204,255,0,0.08),
    0 20px 60px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
}

.stik-body::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, transparent 50%);
  pointer-events: none;
}

.stik-label {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.9);
}

.stik-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.stik-line {
  width: 80px;
  height: 1px;
  background: rgba(255,255,255,0.1);
}

.stik-sub {
  font-family: var(--font-head);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.3);
}

.glow-ring {
  position: absolute;
  width: 280px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(204,255,0,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ── How it works ── */
.how-it-works {
  padding: 120px 40px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.section-headline {
  font-family: var(--font-head);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 72px;
  max-width: 600px;
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  max-width: 900px;
}

.step {
  flex: 1;
  padding-right: 40px;
}

.step-num {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.step-divider {
  width: 1px;
  height: 80px;
  background: var(--border);
  margin-right: 40px;
  align-self: center;
  flex-shrink: 0;
}

/* ── Features ── */
.features {
  padding: 120px 40px;
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  max-width: 1100px;
  margin: 0 auto;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.feature-card {
  background: var(--surface);
  padding: 48px;
  transition: background 0.2s;
}

.feature-card:hover { background: #181818; }

.feature-icon {
  margin-bottom: 24px;
  width: 28px;
  height: 28px;
}

.feature-card h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── Why ── */
.why-section {
  padding: 120px 40px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.why-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.why-left h2 {
  font-family: var(--font-head);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 28px;
}

.why-left p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.why-right {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.stat-block {
  background: var(--bg);
  padding: 28px 32px;
}

.stat-value {
  font-family: var(--font-head);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ── Closing ── */
.closing {
  padding: 120px 40px;
  background: var(--bg);
  text-align: center;
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.closing p {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* ── Footer ── */
.site-footer {
  padding: 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand p {
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 4px;
}

.footer-links {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .site-header { padding: 0 20px; }
  .site-header nav { display: none; }

  .hero { padding: 100px 20px 60px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-visual { order: -1; }
  .lede { margin: 0 auto 24px; }
  .stik-body { width: 180px; height: 98px; }

  .how-it-works { padding: 80px 20px; }
  .steps { flex-direction: column; gap: 40px; }
  .step-divider { display: none; }

  .features { padding: 80px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 32px; }

  .why-section { padding: 80px 20px; }
  .why-inner { grid-template-columns: 1fr; gap: 48px; }

  .closing { padding: 80px 20px; }

  .footer-inner { flex-direction: column; gap: 16px; }
}

@media (max-width: 480px) {
  .headline { font-size: 36px; }
  .section-headline { font-size: 28px; }
}