/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #fafaf9;
  --bg-alt: #f4f3f0;
  --fg: #111827;
  --fg-muted: #6b7280;
  --fg-subtle: #9ca3af;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --slate: #1a1f36;
  --slate-mid: #2d3552;
  --slate-light: #3f4c77;
  --border: #e5e4df;
  --white: #ffffff;
  --font-head: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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 === */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.nav-badge {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--white);
  padding: 3px 8px;
  border-radius: 4px;
}

/* === HERO === */
.hero {
  background: var(--slate);
  color: var(--white);
  padding: 100px 40px 120px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.hero-label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 20px;
  color: rgba(255,255,255,0.65);
  max-width: 620px;
  line-height: 1.65;
  margin-bottom: 60px;
}

.hero-stat-row {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  overflow: hidden;
}

.hero-stat {
  flex: 1;
  padding: 28px 32px;
}

.hero-stat-num {
  font-family: var(--font-head);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  line-height: 1.4;
}

.hero-stat-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
}

/* === PROBLEM === */
.problem {
  padding: 100px 40px;
  background: var(--bg-alt);
}

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

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

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

.problem-headline {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--slate);
  max-width: 700px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.problem-card {
  background: var(--white);
  padding: 40px;
}

.problem-icon {
  width: 44px;
  height: 44px;
  background: var(--bg-alt);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate-mid);
  margin-bottom: 20px;
}

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

.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* === HOW === */
.how {
  padding: 100px 40px;
  background: var(--bg);
}

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

.how-headline {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--slate);
  max-width: 600px;
  margin-bottom: 16px;
}

.how-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 540px;
  margin-bottom: 56px;
  line-height: 1.65;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.how-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  position: relative;
}

.how-card--wide {
  grid-column: 1 / -1;
}

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

.how-card h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--slate);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.how-card > p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.how-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.how-list li {
  font-size: 14px;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
}

.how-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* === PRICING === */
.pricing {
  padding: 100px 40px;
  background: var(--slate);
}

.pricing-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.pricing .section-label {
  color: var(--accent);
}

.pricing-headline {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 56px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  text-align: left;
}

.pricing-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 36px;
  position: relative;
}

.pricing-card--featured {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.25);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--accent);
  color: var(--white);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 6px;
}

.pricing-tier {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.pricing-price {
  font-family: var(--font-head);
  font-size: 48px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 12px;
}

.pricing-per {
  font-size: 16px;
  font-weight: 400;
  color: rgba(255,255,255,0.4);
}

.pricing-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 24px;
  line-height: 1.55;
}

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

.pricing-features li {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  padding-left: 20px;
  position: relative;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* === CLOSING === */
.closing {
  padding: 120px 40px;
  background: var(--bg);
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--slate);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 19px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

/* === FOOTER === */
.site-footer {
  background: var(--slate);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--white);
  display: block;
  margin-bottom: 6px;
}

.footer-brand p {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  max-width: 300px;
}

.footer-legal {
  font-size: 12px;
  color: rgba(255,255,255,0.2);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 72px 24px 80px; }
  .problem { padding: 72px 24px; }
  .how { padding: 72px 24px; }
  .pricing { padding: 72px 24px; }
  .closing { padding: 80px 24px; }
  .site-footer { padding: 32px 24px; }
  .nav-inner { padding: 16px 24px; }

  .hero-headline { font-size: 38px; }
  .hero-stat-row { flex-direction: column; }
  .hero-stat-divider { width: 40px; height: 1px; }
  .hero-stat { padding: 20px 24px; width: 100%; }

  .problem-grid { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .how-card--wide { grid-column: auto; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 30px; }
  .pricing-price { font-size: 38px; }
}