:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-alt: #1a1a25;
  --fg-primary: #e8e8ed;
  --fg-secondary: #9494a8;
  --fg-muted: #6b6b80;
  --accent: #e85d3a;
  --accent-soft: rgba(232, 93, 58, 0.12);
  --accent-glow: rgba(232, 93, 58, 0.25);
  --warning: #f0a030;
  --warning-soft: rgba(240, 160, 48, 0.1);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── Hero ── */
.hero {
  padding: 100px 40px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-inner {
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid rgba(232, 93, 58, 0.2);
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--fg-primary);
}

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

.lede {
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--fg-secondary);
  max-width: 640px;
  line-height: 1.6;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 60px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ── Problem Section ── */
.problem {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.problem-left h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  position: sticky;
  top: 40px;
}

.question-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.question-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.question-item:hover {
  border-color: rgba(232, 93, 58, 0.3);
}

.q-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--warning-soft);
  color: var(--warning);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}

.question-item p {
  color: var(--fg-secondary);
  font-size: 16px;
  line-height: 1.5;
}

/* ── Features ── */
.features {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.phases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.phase-card {
  padding: 40px 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.phase-1 {
  background: linear-gradient(160deg, var(--bg-card) 0%, rgba(232, 93, 58, 0.04) 100%);
}

.phase-2 {
  background: linear-gradient(160deg, var(--bg-card) 0%, rgba(100, 130, 255, 0.04) 100%);
}

.phase-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.phase-card h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.phase-desc {
  color: var(--fg-secondary);
  font-size: 15px;
  margin-bottom: 24px;
  line-height: 1.6;
}

.deliverables {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.deliverables li {
  font-size: 15px;
  color: var(--fg-secondary);
  padding-left: 20px;
  position: relative;
}

.deliverables li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Proof / Industries ── */
.proof {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.proof-inner > h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 52px;
  max-width: 700px;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.2s, transform 0.2s;
}

.industry-card:hover {
  border-color: rgba(232, 93, 58, 0.25);
  transform: translateY(-2px);
}

.industry-icon {
  font-size: 28px;
  margin-bottom: 16px;
  opacity: 0.7;
}

.industry-card h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

.industry-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* ── Closing ── */
.closing {
  padding: 120px 40px;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.closing-text {
  color: var(--fg-secondary);
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.closing-text:last-child {
  color: var(--fg-primary);
  font-weight: 500;
}

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

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

/* ── CTA Buttons ── */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.88; text-decoration: none; }

.hero-cta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.cta-note {
  font-size: 13px;
  color: var(--fg-muted);
}

.closing-inner .btn-primary {
  margin-top: 32px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero { padding: 72px 24px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 14px; }
  .stat-card { padding: 24px 20px; }
  .stat-number { font-size: 32px; }
  
  .problem { padding: 72px 24px; }
  .problem-inner { grid-template-columns: 1fr; gap: 40px; }
  .problem-left h2 { position: static; }
  
  .features { padding: 72px 24px; }
  .phases { grid-template-columns: 1fr; }
  .phase-card { padding: 32px 24px; }
  
  .proof { padding: 72px 24px; }
  .industry-grid { grid-template-columns: 1fr 1fr; }
  
  .closing { padding: 80px 24px; }
  .site-footer { padding: 32px 24px; }
}

@media (max-width: 520px) {
  .industry-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .closing h2 { font-size: 28px; }
  .question-item { padding: 16px; }
}