:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #6ee7b7;
  --accent-dim: rgba(110, 231, 183, 0.15);
  --accent-glow: rgba(110, 231, 183, 0.08);
  --blue: #60a5fa;
  --blue-dim: rgba(96, 165, 250, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1120px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', 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-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(110, 231, 183, 0.06), transparent),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(96, 165, 250, 0.04), transparent),
    var(--bg);
}

.hero-inner {
  max-width: 620px;
  flex-shrink: 0;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  color: var(--fg);
  margin-bottom: 24px;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--bg);
  background: var(--accent);
  text-decoration: none;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  transition: opacity 0.15s;
}
.hero-cta:hover { opacity: 0.85; }

.hero-secondary {
  font-size: 0.95rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.hero-secondary:hover { color: var(--fg); }

.hero-visual {
  position: relative;
  margin-left: 60px;
  flex-shrink: 0;
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: 300px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.hero-card.offset {
  margin-top: -20px;
  margin-left: 40px;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
}

.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.card-dot.green { background: var(--accent); }
.card-dot.blue { background: var(--blue); }

.card-label {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--fg);
}

.card-time {
  margin-left: auto;
  color: var(--fg-dim);
  font-size: 12px;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-line {
  height: 10px;
  border-radius: 5px;
  background: var(--border);
}

.card-line.full { width: 100%; }
.card-line.three-quarter { width: 75%; }
.card-line.half { width: 50%; }

.card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  width: fit-content;
}

.card-tag.accent {
  background: var(--blue-dim);
  color: var(--blue);
}

.progress-bar-container {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  border-radius: 4px;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 120px 24px;
  background: var(--bg);
}

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

.problem h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 64px;
  max-width: 500px;
}

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

.problem-number {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-dim);
  margin-bottom: 16px;
}

.problem-item h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--fg);
}

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

/* ===== FEATURES ===== */
.features {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

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

.features-header {
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 16px;
}

.features-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 520px;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(110, 231, 183, 0.2);
}

.feature-card.large {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: start;
}

.feature-card.large .feature-icon {
  font-size: 2rem;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  display: block;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--fg);
}

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

/* ===== AUDIENCE ===== */
.audience {
  padding: 120px 24px;
  background: var(--bg);
}

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

.audience h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 56px;
  max-width: 560px;
}

.audience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.audience-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.audience-item:first-child {
  border-top: 1px solid var(--border);
}

.audience-marker {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
  flex-shrink: 0;
}

.audience-item h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  color: var(--fg);
}

.audience-item p {
  color: var(--fg-muted);
  font-size: 0.93rem;
  line-height: 1.6;
}

/* ===== CLOSING ===== */
.closing {
  padding: 140px 24px;
  text-align: center;
  background:
    radial-gradient(ellipse 50% 60% at 50% 100%, rgba(110, 231, 183, 0.06), transparent),
    var(--bg-elevated);
}

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

.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 24px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

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

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

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--fg);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    min-height: auto;
    padding: 100px 24px 60px;
  }

  .hero-inner { max-width: 100%; }

  .lede { margin: 0 auto; }

  .hero-visual {
    margin-left: 0;
    margin-top: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-card.offset {
    margin-left: 20px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-card { width: 260px; }
  .audience-item { gap: 16px; }
}