:root {
  --bg: #0a0e17;
  --bg-raised: #111827;
  --bg-card: #151d2e;
  --fg: #e2e8f0;
  --fg-muted: #8892a4;
  --accent: #22d3a7;
  --accent-dim: rgba(34, 211, 167, 0.12);
  --red-muted: #f87171;
  --red-dim: rgba(248, 113, 113, 0.1);
  --border: rgba(255,255,255,0.06);
  --font-body: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-w: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 6vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); color: var(--fg); margin-bottom: 48px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }
p { color: var(--fg-muted); }

/* ---- HERO ---- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(34,211,167,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(56,126,245,0.04) 0%, transparent 70%),
    var(--bg);
}

.hero-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
  border: 1px solid rgba(34,211,167,0.15);
}

.pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,211,167,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34,211,167,0); }
}

.lede {
  font-size: 1.15rem;
  margin-top: 20px;
  max-width: 480px;
}

/* Terminal */
.hero-terminal {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 24px 64px rgba(0,0,0,0.5);
}

.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dots span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}
.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #febc2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.line { color: var(--fg-muted); }
.prompt { color: var(--accent); font-weight: 500; }
.cmd { color: var(--fg); }
.output .ok { color: var(--accent); margin-right: 6px; }

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- PROBLEM ---- */
.problem {
  padding: 100px 24px;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
}

.comp-card {
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.comp-card.old {
  background: var(--red-dim);
  border-color: rgba(248,113,113,0.15);
}

.comp-card.new {
  background: var(--accent-dim);
  border-color: rgba(34,211,167,0.15);
}

.comp-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.comp-card.old .comp-label { color: var(--red-muted); }
.comp-card.new .comp-label { color: var(--accent); }

.comp-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comp-card li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.comp-card.old li::before {
  content: '\00D7';
  position: absolute;
  left: 0;
  color: var(--red-muted);
  font-weight: 700;
}

.comp-card.new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.comp-arrow {
  color: var(--fg-muted);
  opacity: 0.4;
}

/* ---- FEATURES ---- */
.features {
  padding: 100px 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(34,211,167,0.2);
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---- HOW ---- */
.how {
  padding: 100px 24px;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.step:last-child { border-bottom: none; }

.step-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
}

.step-content p {
  font-size: 0.95rem;
  margin-top: 4px;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 24px;
  text-align: center;
}

.closing-block {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing p {
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.footer-brand {
  font-weight: 600;
  color: var(--fg);
}

.footer-divider {
  opacity: 0.3;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 80px 24px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .comparison { grid-template-columns: 1fr; }
  .comp-arrow { transform: rotate(90deg); justify-self: center; }
  .feature-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 56px 1fr; gap: 16px; }
  .step-num { font-size: 1.4rem; }
}

@media (max-width: 480px) {
  body { font-size: 15px; }
  .hero { padding: 60px 16px 40px; }
  .problem, .features, .how { padding: 64px 16px; }
  .closing { padding: 80px 16px; }
}