:root {
  --bg: #f8f6f1;
  --bg-warm: #f2ede4;
  --fg: #2c2924;
  --fg-muted: #7a7469;
  --accent: #6b8f71;
  --accent-soft: #e8f0e9;
  --accent-warm: #c4a882;
  --surface: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
}

* { 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-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* HERO */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 24px;
  font-weight: 400;
}

.hero-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  font-weight: 300;
}

.hero-gradient {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(107,143,113,0.12) 0%, rgba(196,168,130,0.08) 40%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
}

/* PROBLEM */
.problem {
  padding: 80px 24px;
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

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

.problem-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid rgba(0,0,0,0.05);
}

.problem-card-accent {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.problem-card-accent p {
  color: rgba(255,255,255,0.85);
}

.problem-icon {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--fg-muted);
  font-weight: 300;
}

/* HOW */
.how {
  padding: 100px 24px;
  background: var(--bg-warm);
}

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

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 400;
  margin-bottom: 60px;
  text-align: center;
}

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

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 16px;
}

.how-step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 10px;
}

.how-step p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  font-weight: 300;
  line-height: 1.65;
}

/* FEATURES */
.features {
  padding: 100px 24px;
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 20px;
}

.feature-text p {
  font-size: 1rem;
  color: var(--fg-muted);
  font-weight: 300;
  line-height: 1.7;
}

.feature-visual {
  display: flex;
  justify-content: center;
}

.mock-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 340px;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 20px 60px rgba(0,0,0,0.06);
}

.mock-mood {
  font-size: 0.85rem;
  color: var(--fg-muted);
  padding: 10px 14px;
  background: var(--bg-warm);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-weight: 300;
}

.mock-task {
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  padding: 18px;
}

.mock-task-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 8px;
}

.mock-task-text {
  font-size: 0.95rem;
  color: var(--fg);
  font-weight: 400;
  margin-bottom: 8px;
  line-height: 1.5;
}

.mock-task-time {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 300;
}

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

.feature-small {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid rgba(0,0,0,0.05);
}

.feature-small h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 10px;
}

.feature-small p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  font-weight: 300;
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 120px 24px;
  text-align: center;
  background: var(--bg-warm);
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 24px;
}

.closing p {
  font-size: 1.1rem;
  color: var(--fg-muted);
  font-weight: 300;
  line-height: 1.75;
}

/* FOOTER */
.site-footer {
  padding: 48px 24px;
  text-align: center;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 300;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .how-steps {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .closing {
    padding: 80px 20px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-sub {
    font-size: 1rem;
  }
}