:root {
  --bg-deep: #0a0f1a;
  --bg-surface: #111827;
  --bg-card: #1a2236;
  --fg-primary: #f0f4f8;
  --fg-secondary: #94a3b8;
  --fg-muted: #64748b;
  --accent: #2dd4bf;
  --accent-glow: rgba(45, 212, 191, 0.15);
  --accent-warm: #f59e0b;
  --border: rgba(148, 163, 184, 0.1);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -300px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(45, 212, 191, 0.25);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 28px;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  color: var(--accent);
}

.hero-description {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.chat-window {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.chat-header-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.chat-header-title {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-secondary);
}

.chat-messages {
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.msg {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.6;
  max-width: 85%;
}

.msg-user {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--accent-warm);
  align-self: flex-end;
}

.msg-ai {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg-secondary);
  align-self: flex-start;
}

.msg-ai strong {
  color: var(--accent);
}

/* Method Section */
.method {
  padding: 120px 0;
  position: relative;
}

.method::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--accent));
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.method h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.method-intro {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 640px;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  position: relative;
  transition: border-color 0.3s ease;
}

.step:hover {
  border-color: rgba(45, 212, 191, 0.3);
}

.step-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--bg-card);
  -webkit-text-stroke: 1px var(--accent);
  margin-bottom: 20px;
  line-height: 1;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.step p {
  font-size: 15px;
  color: var(--fg-secondary);
  line-height: 1.7;
}

/* Differentiator section */
.differ {
  padding: 100px 0;
  background: var(--bg-surface);
}

.differ-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}

.differ h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.differ-text {
  font-size: 17px;
  color: var(--fg-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}

.proof-points {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.proof {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.proof-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border: 1px solid rgba(45, 212, 191, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.proof h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.proof p {
  font-size: 14px;
  color: var(--fg-muted);
}

/* Compare table */
.compare-table {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.compare-row:last-child { border-bottom: none; }

.compare-row.header {
  background: var(--bg-card);
}

.compare-cell {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--fg-secondary);
}

.compare-cell:not(:last-child) {
  border-right: 1px solid var(--border);
}

.compare-row.header .compare-cell {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--fg-muted);
}

.compare-cell .yes {
  color: var(--accent);
  font-weight: 600;
}

.compare-cell .no {
  color: var(--fg-muted);
}

/* Closing */
.closing {
  padding: 140px 0;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
  position: relative;
}

.closing p {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

/* CTA Buttons */
.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0a0f1a;
  border: none;
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.1s;
}
.btn-cta-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
}
.btn-cta-secondary:hover { background: var(--accent-glow); transform: translateY(-1px); }

.closing-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 80px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-stats { gap: 24px; }
  .steps { grid-template-columns: 1fr; }
  .differ-grid { grid-template-columns: 1fr; gap: 48px; }
  .compare-row { grid-template-columns: 1fr; }
  .compare-cell:not(:last-child) { border-right: none; border-bottom: 1px solid var(--border); }
  .compare-row.header { display: none; }
  .compare-cell::before { content: attr(data-label); display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--fg-muted); margin-bottom: 4px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}