:root {
  --bg: #0a0f0a;
  --bg-elevated: #111a11;
  --bg-card: #162016;
  --fg: #e8efe8;
  --fg-muted: #8fa88f;
  --fg-dim: #5a725a;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.12);
  --warning: #f59e0b;
  --border: #1e2e1e;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  position: relative;
  z-index: 10;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.logo-accent {
  color: var(--accent);
  font-weight: 500;
}

.nav-tag {
  font-size: 0.8rem;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 100px;
}

/* HERO */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: linear-gradient(170deg, var(--bg) 0%, #0d160d 40%, #0f1a0f 100%);
}

.hero-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 48px;
  max-width: 900px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  width: fit-content;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(74, 222, 128, 0.2);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
}

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

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 40px 48px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* PROBLEM SECTION */
.problem {
  padding: 120px 0;
  background: var(--bg);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 40px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.problem-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.problem-text p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.problem-timeline {
  padding-top: 12px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 8px 0;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 4px;
  box-shadow: 0 0 12px var(--accent-glow);
}

.dot-warning {
  background: var(--warning);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
}

.dot-future {
  background: var(--fg-dim);
  box-shadow: none;
  border: 2px solid var(--fg-dim);
  background: transparent;
}

.timeline-line {
  width: 2px;
  height: 32px;
  background: var(--border);
  margin-left: 6px;
}

.timeline-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.timeline-date {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
}

.timeline-text {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

/* HOW SECTION */
.how {
  padding: 120px 0;
  background: var(--bg-elevated);
}

.how-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.how-card:hover {
  border-color: rgba(74, 222, 128, 0.25);
}

.how-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-dim);
  margin-bottom: 16px;
}

.how-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.how-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ADVANTAGES */
.advantages {
  padding: 120px 0;
  background: var(--bg);
}

.advantages-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.advantages-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.advantage-main h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.advantage-main p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.advantage-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.advantage-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.advantage-icon {
  color: var(--accent);
  font-size: 0.7rem;
  margin-top: 6px;
  flex-shrink: 0;
}

.advantage-item h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.advantage-item p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 140px 0;
  background: linear-gradient(180deg, var(--bg) 0%, #0d160d 100%);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 48px;
}

.closing-line {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto 48px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* FOOTER */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
}

.footer-detail {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

/* MOBILE */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero-content { padding: 0 24px; }
  .hero-stats { padding: 32px 24px; gap: 20px; flex-wrap: wrap; }
  .problem-inner, .how-inner, .advantages-inner, .closing-inner, .footer-inner { padding: 0 24px; }
  .problem { padding: 80px 0; }
  .problem-grid { grid-template-columns: 1fr; gap: 48px; }
  .how { padding: 80px 0; }
  .how-grid { grid-template-columns: 1fr; }
  .advantages { padding: 80px 0; }
  .advantages-layout { grid-template-columns: 1fr; gap: 48px; }
  .closing { padding: 100px 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}