:root {
  --bg: #f7f6f3;
  --bg-dark: #0f172a;
  --bg-mid: #1a2744;
  --fg: #0f172a;
  --fg-light: #94a3b8;
  --accent: #10b981;
  --accent-dark: #059669;
  --coral: #f43f5e;
  --white: #ffffff;
}

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

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

body {
  font-family: 'Figtree', system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid rgba(15,23,42,0.08);
}
.nav-brand {
  font-family: 'Fraunces', serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-light);
  letter-spacing: 0.01em;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 5rem 2.5rem 5rem;
  background: var(--bg-dark);
  color: var(--white);
  min-height: 85vh;
  align-items: center;
}
.hero-inner { display: flex; flex-direction: column; gap: 1.75rem; justify-content: center; }
.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(16,185,129,0.3);
  padding: 0.3rem 0.75rem;
  border-radius: 2rem;
  width: fit-content;
}
.hero-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(2.6rem, 4.5vw, 4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--white);
}
.hero-headline em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.65;
  max-width: 480px;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-stat { display: flex; flex-direction: column; gap: 0.15rem; }
.stat-num { font-family: 'Fraunces', serif; font-size: 1.4rem; font-weight: 700; color: var(--white); }
.stat-label { font-size: 0.72rem; color: rgba(255,255,255,0.5); letter-spacing: 0.05em; text-transform: uppercase; }
.hero-divider { width: 1px; height: 2.5rem; background: rgba(255,255,255,0.15); }

/* Hero Visual */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.flashcard-preview {
  background: var(--white);
  border-radius: 1rem;
  padding: 1.75rem;
  color: var(--fg);
  width: 320px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  transform: rotate(-2deg);
  border-left: 4px solid var(--accent);
}
.flashcard-preview.flashcard-back {
  position: absolute;
  top: 20px;
  right: 20px;
  transform: rotate(3deg);
  opacity: 0.85;
  border-left-color: var(--coral);
}
.card-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 0.75rem;
}
.card-q { font-family: 'Fraunces', serif; font-size: 0.95rem; font-weight: 600; line-height: 1.4; margin-bottom: 1rem; }
.card-answer { font-size: 0.8rem; color: var(--fg-light); }
.visual-badge {
  position: absolute;
  bottom: -15px;
  left: -20px;
  background: var(--accent);
  color: var(--white);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 8px 24px rgba(16,185,129,0.4);
}
.badge-icon { font-size: 1rem; }
.badge-text { font-size: 0.7rem; font-weight: 600; line-height: 1.3; }

/* PROBLEM */
.problem { background: var(--bg); padding: 6rem 2.5rem; }
.problem-inner { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 1.25rem;
}
.problem-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin-bottom: 3.5rem;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.problem-item {
  background: var(--white);
  border: 1px solid rgba(15,23,42,0.08);
  border-radius: 1rem;
  padding: 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.problem-item:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(15,23,42,0.08); }
.problem-icon { font-size: 1.5rem; color: var(--accent-dark); margin-bottom: 1rem; }
.problem-item h3 { font-family: 'Fraunces', serif; font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.problem-item p { font-size: 0.9rem; color: var(--fg-light); line-height: 1.6; }

/* PRODUCTS */
.products { background: var(--bg); padding: 6rem 2.5rem; border-top: 1px solid rgba(15,23,42,0.06); }
.products-inner { max-width: 1100px; margin: 0 auto; }
.products-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
  max-width: 700px;
}
.products-headline em { font-style: italic; color: var(--accent-dark); }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--white);
  border: 1px solid rgba(15,23,42,0.08);
  border-radius: 1rem;
  padding: 1.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.product-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.product-icon { font-size: 1.5rem; color: var(--accent-dark); margin-bottom: 0.85rem; }
.product-card h3 { font-family: 'Fraunces', serif; font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.product-card p { font-size: 0.85rem; color: var(--fg-light); line-height: 1.55; margin-bottom: 0.85rem; }
.product-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(16,185,129,0.08);
  padding: 0.25rem 0.65rem;
  border-radius: 2rem;
}

/* DIFFERENT */
.different { background: var(--bg-dark); color: var(--white); padding: 6rem 2.5rem; }
.different-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.different-left .section-label { color: var(--accent); }
.different-left h2 {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.different-body { font-size: 0.95rem; color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: 2.5rem; }
.diff-points { display: flex; flex-direction: column; gap: 1.5rem; }
.diff-point { display: flex; gap: 1rem; align-items: flex-start; }
.diff-marker { color: var(--accent); font-size: 1rem; font-weight: 700; flex-shrink: 0; margin-top: 0.1rem; }
.diff-point strong { color: var(--white); }
.diff-point div { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.55; }
.quote-block {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 1.25rem;
  padding: 2.5rem;
}
.quote-mark { font-family: 'Fraunces', serif; font-size: 4rem; color: var(--accent); line-height: 0.5; margin-bottom: 1.5rem; }
blockquote {
  font-family: 'Fraunces', serif;
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.5;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.quote-attr { font-size: 0.8rem; color: rgba(255,255,255,0.45); }

/* CLOSING */
.closing { background: var(--accent-dark); color: var(--white); padding: 7rem 2.5rem; text-align: center; }
.closing-inner { max-width: 800px; margin: 0 auto; }
.closing-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.15);
  padding: 0.3rem 0.85rem;
  border-radius: 2rem;
  margin-bottom: 2rem;
  color: var(--white);
}
.closing-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.closing-sub { font-size: 1rem; color: rgba(255,255,255,0.8); line-height: 1.65; max-width: 550px; margin: 0 auto 2.5rem; }
.closing-systems { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; margin-bottom: 3rem; }
.system-tag {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.82rem;
  font-weight: 500;
}
.closing-vibe { font-family: 'Fraunces', serif; font-size: 1.1rem; font-style: italic; color: rgba(255,255,255,0.75); }

/* FOOTER */
.footer { background: var(--fg); color: rgba(255,255,255,0.5); padding: 3rem 2.5rem; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-brand { font-family: 'Fraunces', serif; font-size: 1.25rem; font-weight: 700; color: var(--white); }
.footer-tagline { font-size: 0.82rem; }
.footer-note { font-size: 0.75rem; color: rgba(255,255,255,0.3); padding-top: 1rem; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 3.5rem 1.5rem; min-height: auto; }
  .hero-visual { display: none; }
  .problem-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .different-inner { grid-template-columns: 1fr; gap: 3rem; }
  .products-headline br { display: none; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr; }
  .nav-tagline { display: none; }
  .hero-meta { gap: 1rem; }
}