:root {
  --bg: #F8F5F0;
  --surface: #FFFFFF;
  --fg: #2A2118;
  --fg-muted: #6B5E52;
  --accent: #D97706;
  --accent-warm: #FEF3C7;
  --border: #E8E0D6;
  --font-head: 'Sora', sans-serif;
  --font-body: 'Figtree', sans-serif;
  --max-w: 1120px;
  --section-pad: 96px 24px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* ── HERO ── */
.hero {
  padding: 80px 24px 64px;
}

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

.hero-kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 440px;
}

/* Product Stack */
.product-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(42, 33, 24, 0.1);
}

.product-card--prompt { border-top: 3px solid #7C3AED; }
.product-card--notion { border-top: 3px solid #0891B2; }
.product-card--guide { border-top: 3px solid #059669; }
.product-card--spreadsheet { border-top: 3px solid #D97706; }

.product-icon {
  font-size: 1.4rem;
  display: block;
  margin-bottom: 4px;
}

.product-label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--fg);
}

.product-price {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* Hero Stats */
.hero-stats {
  max-width: var(--max-w);
  margin: 56px auto 0;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 48px 0 0;
}

.stat:first-child { padding-left: 0; }

.stat-value {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--fg);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  margin-right: 48px;
}

/* ── SECTION COMMON ── */
.section-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 48px;
}

/* ── CATEGORIES ── */
.categories {
  background: var(--surface);
  padding: var(--section-pad);
}

.categories-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

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

.category-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
}

.category-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 14px;
  color: var(--accent);
}

.category-card h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 10px;
  color: var(--fg);
}

.category-card p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── FEATURES ── */
.features {
  padding: var(--section-pad);
}

.features-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px 40px;
}

.feature {
  border-top: 2px solid var(--border);
  padding-top: 20px;
}

.feature-number {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}

.feature h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--fg);
}

.feature p {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── PROCESS ── */
.process {
  background: var(--surface);
  padding: var(--section-pad);
}

.process-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.step-number {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
}

.step-body h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--fg);
}

.step-body p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

.step-connector {
  width: 40px;
  height: 2px;
  background: var(--border);
  flex-shrink: 0;
  margin: 24px 16px 0;
}

/* ── TESTIMONIALS ── */
.testimonials {
  padding: var(--section-pad);
}

.testimonials-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
}

.testimonial-quote {
  font-size: 0.95rem;
  color: var(--fg);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 14px;
}

.testimonial-author {
  font-size: 0.78rem;
  color: var(--fg-muted);
}

/* ── CLOSING ── */
.closing {
  padding: 96px 24px;
  background: var(--fg);
  color: var(--bg);
}

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

.closing-headline {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 28px;
  color: var(--bg);
}

.closing-body {
  font-size: 1rem;
  color: rgba(248, 245, 240, 0.7);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* ── FOOTER ── */
.footer {
  padding: 28px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero-sub { max-width: 100%; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; gap: 24px; }
  .step-connector { width: 40px; height: 2px; margin: 0; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .stat { padding: 0; }
  .stat-divider { display: none; }
}

@media (max-width: 600px) {
  .category-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: 2.2rem; }
  .closing { padding: 64px 24px; }
}