:root {
  --bg: #FAF8F5;
  --bg-alt: #F0EDE8;
  --fg: #1A1A2E;
  --fg-muted: #5C5C6E;
  --accent: #C8872B;
  --accent-light: #F5E6D0;
  --stamp: #B8432F;
  --stamp-bg: rgba(184, 67, 47, 0.08);
  --border: #E0DCD6;
  --success: #2D6A4F;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --max-width: 1080px;
}

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

html { scroll-behavior: smooth; }

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

/* === HERO === */
.hero {
  position: relative;
  padding: 100px 32px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 16px;
  border-radius: 4px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 19px;
  line-height: 1.6;
  color: var(--fg-muted);
  max-width: 560px;
}

.hero-stamp {
  position: absolute;
  top: 60px;
  right: 8%;
  transform: rotate(12deg);
  z-index: 1;
}

.stamp-inner {
  border: 4px solid var(--stamp);
  border-radius: 8px;
  padding: 18px 28px;
  text-align: center;
  background: var(--stamp-bg);
}

.stamp-text {
  display: block;
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--stamp);
  text-transform: uppercase;
}

.stamp-sub {
  display: block;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--stamp);
  text-transform: uppercase;
  margin-top: 4px;
}

/* === PROBLEM === */
.problem {
  padding: 80px 32px;
  background: var(--bg-alt);
}

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

.problem-label,
.features-label,
.how-label {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.problem-number {
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--fg);
}

.problem-desc {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* === FEATURES === */
.features {
  padding: 80px 32px;
}

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

.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.feature-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  transition: border-color 0.2s;
}

.feature-item:hover {
  border-color: var(--accent);
}

.feature-icon {
  font-size: 28px;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  border-radius: 8px;
}

.feature-content h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--fg);
}

.feature-content p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* === HOW (Comparison) === */
.how {
  padding: 80px 32px;
  background: var(--bg-alt);
}

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

.how-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.how-column {
  padding: 36px 32px;
  border-radius: 8px;
}

.how-column h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
}

.how-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.how-column ul li {
  font-size: 15px;
  line-height: 1.5;
  padding-left: 24px;
  position: relative;
}

.how-without {
  background: #FDF2F0;
  border: 1px solid #E8C4BE;
}

.how-without h3 { color: var(--stamp); }

.how-without ul li::before {
  content: '\2717';
  position: absolute;
  left: 0;
  color: var(--stamp);
  font-weight: 600;
}

.how-with {
  background: #F0F7F3;
  border: 1px solid #B8D8C5;
}

.how-with h3 { color: var(--success); }

.how-with ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 600;
}

/* === CLOSING === */
.closing {
  padding: 100px 32px;
  text-align: center;
}

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

.closing-text {
  font-family: var(--font-heading);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--fg);
}

/* === FOOTER === */
.site-footer {
  padding: 32px;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 72px 20px 60px; }

  .hero-stamp {
    position: relative;
    top: auto;
    right: auto;
    transform: rotate(8deg);
    margin-top: 40px;
    display: inline-block;
  }

  .problem-grid {
    grid-template-columns: 1fr 1fr;
  }

  .features-list {
    grid-template-columns: 1fr;
  }

  .how-comparison {
    grid-template-columns: 1fr;
  }

  .problem, .features, .how { padding: 60px 20px; }
  .closing { padding: 72px 20px; }
}

@media (max-width: 480px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 { font-size: 36px; }
  .closing-text { font-size: 24px; }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}