:root {
  --bg: #0f0f14;
  --surface: #1a1a24;
  --surface2: #22222e;
  --border: #2a2a3a;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --accent: #00d4ff;
  --accent-dim: #00d4ff22;
  --up: #00e676;
  --down: #ff4d6a;
  --stable: #8888a0;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.nav-logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 400;
}

/* SECTION LABELS */
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

/* HERO */
.hero {
  padding: 80px 48px 96px;
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1100px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--fg-muted);
  font-family: 'DM Mono', monospace;
  margin-bottom: 28px;
}
.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--up);
  display: inline-block;
}
.hero-headline {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-cta {
  display: inline-block;
  background: var(--accent);
  color: #000;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: opacity 0.15s;
}
.hero-cta:hover { opacity: 0.85; }
.hero-cta-secondary {
  display: inline-block;
  background: transparent;
  color: var(--fg-muted);
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  margin-left: 12px;
  transition: all 0.15s;
}
.hero-cta-secondary:hover { border-color: var(--fg-muted); color: var(--fg); }

/* PRICE WIDGET */
.price-widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  font-family: 'DM Mono', monospace;
}
.pw-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.pw-title { font-size: 12px; color: var(--fg-muted); }
.pw-badge {
  font-size: 10px;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 3px 8px;
  border-radius: 20px;
  font-weight: 500;
}
.pw-items { display: flex; flex-direction: column; gap: 0; }
.pw-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.pw-item:last-child { border-bottom: none; }
.pw-name { font-size: 13px; font-weight: 600; color: var(--fg); display: block; }
.pw-detail { font-size: 11px; color: var(--fg-muted); }
.pw-price { font-size: 15px; font-weight: 600; color: var(--fg); }
.pw-period { font-size: 11px; color: var(--fg-muted); }
.pw-delta { font-size: 11px; font-weight: 500; }
.up-delta { color: var(--up); }
.down-delta { color: var(--down); }
.pw-footer {
  margin-top: 16px;
  font-size: 11px;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.pw-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--up);
  display: inline-block;
}

/* HOW SECTION */
.how { padding: 96px 48px; border-bottom: 1px solid var(--border); }
.how-inner { max-width: 1100px; }
.how-headline {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  color: var(--fg);
  margin-bottom: 64px;
  max-width: 520px;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.step-num {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
  display: block;
  margin-bottom: 16px;
}
.step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.step-body {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* WIDGET SECTION */
.widget-section { padding: 96px 48px; border-bottom: 1px solid var(--border); }
.widget-inner { max-width: 1100px; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.widget-headline {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 16px;
}
.widget-body { font-size: 15px; color: var(--fg-muted); line-height: 1.7; }

/* RULE WIDGET */
.rule-widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  font-family: 'DM Mono', monospace;
}
.rw-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.rw-title { font-size: 12px; color: var(--fg-muted); }
.rw-status { font-size: 10px; padding: 3px 8px; border-radius: 20px; font-weight: 500; }
.rw-active { background: #00e67622; color: var(--up); }
.rw-rule { padding: 20px; border-bottom: 1px solid var(--border); }
.rw-field { display: inline; }
.rw-label { font-size: 12px; color: var(--accent); font-weight: 500; }
.rw-arrow { font-size: 11px; color: var(--fg-muted); margin: 8px 0; }
.rw-action { font-size: 12px; color: var(--fg); background: var(--surface2); padding: 8px 12px; border-radius: 8px; display: inline-block; margin-top: 4px; }
.rw-log { padding: 16px 20px; }
.rw-log-item { display: flex; gap: 16px; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 11px; }
.rw-log-item:last-child { border-bottom: none; }
.rw-log-time { color: var(--fg-muted); min-width: 110px; }
.rw-log-msg { color: var(--fg); }

/* PRINCIPLES */
.principles { padding: 96px 48px; border-bottom: 1px solid var(--border); }
.principles-inner { max-width: 1100px; }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 40px; }
.principle { padding: 32px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.principle-icon { font-size: 28px; display: block; margin-bottom: 16px; color: var(--accent); font-style: normal; font-weight: 700; }
.principle-text { font-size: 14px; color: var(--fg-muted); line-height: 1.7; }

/* CLOSING */
.closing { padding: 120px 48px; }
.closing-inner { max-width: 900px; }
.closing-headline {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 24px;
}
.closing-sub { font-size: 17px; color: var(--fg-muted); line-height: 1.7; max-width: 560px; }

/* FOOTER */
.footer { padding: 32px 48px; border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; gap: 20px; }
.footer-logo { font-size: 16px; font-weight: 800; color: var(--fg); }
.footer-copy { font-size: 13px; color: var(--fg-muted); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero, .how, .widget-section, .principles, .closing { padding: 60px 24px; }
  .nav { padding: 16px 24px; }
  .hero-grid, .widget-inner { grid-template-columns: 1fr; gap: 40px; }
  .how-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .principles-grid { grid-template-columns: 1fr; }
  .footer { padding: 24px; }
  .closing-headline { font-size: 30px; }
}
@media (max-width: 480px) {
  .how-steps { grid-template-columns: 1fr; }
}