:root {
  --bg: #0C0F0E;
  --bg-elevated: #141918;
  --bg-card: #1A1F1E;
  --fg: #E8EDE9;
  --fg-muted: #8A9B8E;
  --accent: #5CE0A0;
  --accent-dim: #2A7A55;
  --accent-glow: rgba(92, 224, 160, 0.12);
  --warm: #F4C67A;
  --serif: 'DM Serif Display', serif;
  --sans: 'Plus Jakarta Sans', sans-serif;
  --radius: 16px;
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

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

/* HERO */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.08;
  font-weight: 400;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

/* PROBLEM */
.problem {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

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

.section-label {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 48px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 40px 32px;
}

.problem-number {
  font-family: var(--serif);
  font-size: 3.2rem;
  color: var(--warm);
  margin-bottom: 12px;
  line-height: 1;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.problem-statement {
  font-size: 1.35rem;
  color: var(--fg);
  max-width: 750px;
  line-height: 1.6;
  font-weight: 500;
}

/* FEATURES */
.features {
  padding: 100px 24px;
  background: var(--bg);
}

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

.feature-blocks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-block {
  background: var(--bg-elevated);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 44px 36px;
  transition: border-color 0.3s ease;
}

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

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.feature-block h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  margin-bottom: 12px;
  font-weight: 400;
  color: var(--fg);
}

.feature-block p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

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

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 24px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  margin-bottom: 40px;
  line-height: 1.7;
}

.closing-tagline {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* FOOTER */
.site-footer {
  padding: 48px 24px;
  background: var(--bg);
  border-top: 1px solid rgba(255,255,255,0.05);
}

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

.footer-brand {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--fg);
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .feature-blocks {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

  .hero h1 {
    font-size: 2.6rem;
  }

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

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

  .hero-glow {
    width: 400px;
    height: 400px;
  }
}