:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --bg-highlight: #1a1a2e;
  --border: #1f1f2e;
  --border-bright: #2a2a3e;
  --fg: #e4e4ed;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.15);
  --accent-glow: rgba(0, 230, 118, 0.08);
  --red: #ff4d6a;
  --yellow: #ffd740;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

.text-accent { color: var(--accent); }

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}
.logo-icon {
  color: var(--accent);
  font-size: 22px;
}
.logo-text { letter-spacing: -0.02em; }
.nav-tag {
  font-size: 12px;
  color: var(--fg-muted);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  border: 1px solid rgba(0, 230, 118, 0.2);
}
.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero-accent { color: var(--accent); }
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.stat-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}
.stat-label {
  display: block;
  font-size: 13px;
  color: var(--fg-dim);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero-grid-bg {
  position: absolute;
  top: 0;
  right: -10%;
  width: 60%;
  height: 100%;
  background:
    linear-gradient(90deg, transparent 0%, transparent 49.5%, var(--border) 49.5%, var(--border) 50.5%, transparent 50.5%) 0 0 / 80px 80px,
    linear-gradient(0deg, transparent 0%, transparent 49.5%, var(--border) 49.5%, var(--border) 50.5%, transparent 50.5%) 0 0 / 80px 80px;
  opacity: 0.3;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 40%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 40%, black 0%, transparent 70%);
  z-index: 1;
}

/* PROBLEM */
.problem {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
  margin-bottom: 48px;
  text-transform: uppercase;
}
.problem-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-card {
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.problem-card-highlight {
  background: var(--accent-glow);
  border-color: rgba(0, 230, 118, 0.25);
}
.problem-icon {
  font-size: 24px;
  margin-bottom: 20px;
}
.problem-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.problem-card-highlight h3 { color: var(--accent); }
.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* FEATURES */
.features {
  padding: 100px 24px;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  margin-bottom: 64px;
}
.features-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.features-header h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.feature-block {
  padding: 40px 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s;
}
.feature-block:hover {
  border-color: var(--border-bright);
}
.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-highlight) 100%);
  border-color: var(--border-bright);
}
.feature-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.feature-block h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.feature-large h3 { font-size: 26px; }
.feature-block p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 520px;
}
.feature-large p { max-width: 680px; }

/* HOW / COMPARISON */
.how {
  padding: 100px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.how-header { margin-bottom: 56px; }
.how-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.how-header h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.how-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.how-col {
  padding: 36px 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.how-col-old {
  background: var(--bg-card);
}
.how-col-new {
  background: var(--accent-glow);
  border-color: rgba(0, 230, 118, 0.25);
}
.how-col-header {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.how-col-new .how-col-header {
  color: var(--accent);
  border-bottom-color: rgba(0, 230, 118, 0.2);
}
.how-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.how-col li {
  font-size: 15px;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}
.x-mark {
  color: var(--red);
  font-weight: 700;
  font-size: 14px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.check-mark {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

/* CLOSING */
.closing {
  padding: 120px 24px;
  text-align: center;
}
.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}
.closing-line {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto 48px;
}
.closing h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 56px;
}
.closing-terminal {
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 640px;
  margin: 0 auto;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-r { background: var(--red); }
.dot-y { background: var(--yellow); }
.dot-g { background: var(--accent); }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-dim);
  margin-left: 8px;
}
.terminal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.terminal-body code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
}
.t-dim { color: var(--fg-dim); }
.t-muted { color: var(--fg-muted); }
.t-green { color: var(--accent); font-weight: 500; }
.t-accent { color: var(--yellow); }

/* FOOTER */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer-logo {
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 14px;
  color: var(--fg-dim);
  margin-bottom: 16px;
}
.footer-copy {
  font-size: 12px;
  color: var(--fg-dim);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 100px 20px 64px; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 20px; }
  .stat-divider { width: 40px; height: 1px; }
  .problem-columns { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: 1; }
  .how-comparison { grid-template-columns: 1fr; }
  .hero-grid-bg { display: none; }
  .hero h1 { font-size: 2.4rem; }
  .closing h2 { font-size: 1.8rem; }
  .terminal-body code { font-size: 11px; }
}