/* =======================
   SENDFUEL — Landing Page
   ======================= */

/* Variables */
:root {
  --bg: #0D0B12;
  --bg-warm: #1A1520;
  --bg-card: #14111B;
  --bg-card-hover: #1E1A26;
  --text: #F0EBE3;
  --text-muted: #9A948E;
  --text-subtle: #6A6460;
  --accent: #E8602A;
  --accent-dim: rgba(232, 96, 42, 0.15);
  --accent-hover: #D4521F;
  --teal: #4DBB9A;
  --border: rgba(255,255,255,0.06);
  --font-heading: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ================= HERO ================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 48px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,96,42,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.hero-label {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(52px, 7vw, 96px);
  font-weight: 800;
  line-height: 0.95;
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.65;
  margin-bottom: 56px;
}

.hero-stat {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  max-width: 520px;
}

.hero-stat-number {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
}

.hero-stat-label {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.55;
  padding-top: 6px;
}

/* Visual side */
.hero-visual {
  position: absolute;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  width: 380px;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.35;
}

.hero-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.hero-block-top,
.hero-block-mid,
.hero-block-bot {
  display: flex;
  gap: 16px;
}

.hero-hold {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
  box-shadow: 0 0 20px rgba(232,96,42,0.4);
}

.hold-1 { width: 40px; height: 40px; background: var(--accent); }
.hold-3 { width: 34px; height: 34px; background: var(--accent); }
.hold-6 { width: 38px; height: 38px; background: var(--accent); }
.hold-8 { width: 32px; height: 32px; background: var(--accent); }

/* ================= PROBLEM ================= */
.problem {
  padding: 100px 48px;
  background: var(--bg-warm);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.problem-header {
  margin-bottom: 48px;
}

.problem-eyebrow {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem-headline {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
}

.problem-body {
  max-width: 680px;
  margin-bottom: 64px;
}

.problem-body p {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.problem-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.stat-card {
  background: var(--bg-card);
  padding: 40px 32px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ================= FEATURES ================= */
.features {
  padding: 100px 48px;
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.features-eyebrow {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.features-headline {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

.features-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.65;
  margin-bottom: 56px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.feature-card {
  background: var(--bg-card);
  padding: 40px 36px;
}

.feature-icon {
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ================= PRODUCT ================= */
.product {
  padding: 100px 48px;
  background: var(--bg-warm);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.product-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.product-badge {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(232,96,42,0.2);
  display: inline-block;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.product-title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 16px;
}

.product-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 36px;
}

.product-chapters {
  list-style: none;
  margin-bottom: 36px;
}

.product-chapters li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-muted);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.check {
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 1px;
}

.product-price {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
}

/* Book Mockup */
.product-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.book-mockup {
  position: relative;
  display: flex;
  align-items: center;
}

.book-cover {
  width: 220px;
  height: 300px;
  background: #E8602A;
  border-radius: 0 6px 6px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 32px;
  text-align: center;
  box-shadow: -8px 0 20px rgba(0,0,0,0.4);
}

.book-logo {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
}

.book-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: white;
  line-height: 1.2;
  margin-bottom: 12px;
}

.book-sub {
  font-size: 11px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
}

.book-spine {
  width: 20px;
  height: 300px;
  background: #C44E1A;
  border-radius: 3px 0 0 3px;
  box-shadow: -2px 0 8px rgba(0,0,0,0.2);
}

.book-shadow {
  position: absolute;
  bottom: -16px;
  left: 24px;
  width: 220px;
  height: 20px;
  background: rgba(0,0,0,0.3);
  border-radius: 50%;
  filter: blur(8px);
}

/* ================= PRICING ================= */
.pricing {
  padding: 100px 48px;
}

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

.pricing-eyebrow {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.pricing-headline {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.pricing-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 500px;
  line-height: 1.65;
  margin-bottom: 56px;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
}

.pricing-card.featured {
  background: var(--accent-dim);
  border-color: rgba(232,96,42,0.25);
}

.pricing-tier {
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.pricing-range {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
}

.per-mo {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-muted);
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
}

.pricing-features li {
  font-size: 14px;
  color: var(--text-muted);
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

/* ================= CLOSING ================= */
.closing {
  padding: 120px 48px;
  background: var(--bg-warm);
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}

.closing-headline {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.closing-sub {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 560px;
  margin-top: 24px;
}

.closing-visual {
  flex-shrink: 0;
}

.closing-stat {
  text-align: center;
}

.closing-number {
  font-family: var(--font-heading);
  font-size: 80px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.closing-label {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 12px;
}

/* ================= FOOTER ================= */
.footer {
  padding: 48px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  width: 36px;
  height: 36px;
  background: var(--accent-dim);
  border: 1px solid rgba(232,96,42,0.2);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-name {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-subtle);
  margin-left: 4px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-subtle);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .hero { padding: 60px 32px; }
  .hero-visual { display: none; }
  .problem, .features, .product, .pricing, .closing, .footer { padding: 72px 32px; }
  .problem-stats { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .product-inner { grid-template-columns: 1fr; gap: 48px; }
  .product-visual { order: -1; }
  .pricing-grid { grid-template-columns: 1fr; }
  .closing-inner { grid-template-columns: 1fr; gap: 48px; }
  .closing-visual { display: none; }
  .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
  .footer-brand { flex-direction: column; gap: 8px; }
  .footer-tagline { margin-left: 0; }
}

@media (max-width: 480px) {
  .hero { padding: 48px 20px; }
  .problem, .features, .product, .pricing, .closing, .footer { padding: 56px 20px; }
  .hero-headline { font-size: 48px; }
  .hero-stat { flex-direction: column; gap: 8px; }
  .hero-stat-number { font-size: 36px; }
  .problem-stats { gap: 1px; }
  .stat-card { padding: 28px 24px; }
  .stat-number { font-size: 40px; }
  .pricing-grid { gap: 12px; }
  .pricing-card { padding: 28px 24px; }
  .pricing-range { font-size: 28px; }
}