:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --accent: #5ce1b8;
  --accent-dim: rgba(92, 225, 184, 0.12);
  --accent-glow: rgba(92, 225, 184, 0.25);
  --red: #ff6b6b;
  --yellow: #ffd93d;
  --border: rgba(255, 255, 255, 0.06);
  --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: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── Hero ── */
.hero {
  max-width: 820px;
  margin: 0 auto;
  padding: 120px 24px 60px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
  border: 1px solid rgba(92, 225, 184, 0.15);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

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

.hero .lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ── Signal Card ── */
.signal {
  max-width: 620px;
  margin: 0 auto;
  padding: 20px 24px 80px;
}

.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.3s;
}

.signal-card:hover {
  border-color: rgba(92, 225, 184, 0.2);
}

.signal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 12px;
  font-family: var(--font-display);
}

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.signal-label {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 1.5px;
  font-size: 10px;
}

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

.signal-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.signal-detail {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.signal-tags {
  display: flex;
  gap: 8px;
}

.tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.5px;
}

.tag-pricing {
  color: var(--yellow);
  background: rgba(255, 217, 61, 0.1);
  border: 1px solid rgba(255, 217, 61, 0.15);
}

.tag-high {
  color: var(--red);
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.15);
}

/* ── Features ── */
.features {
  max-width: 960px;
  margin: 0 auto;
  padding: 80px 24px;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: background 0.3s, border-color 0.3s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(92, 225, 184, 0.12);
}

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

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* ── How It Works ── */
.how {
  max-width: 700px;
  margin: 0 auto;
  padding: 80px 24px;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.35;
  line-height: 1;
  min-width: 52px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* ── Closing ── */
.closing {
  max-width: 760px;
  margin: 0 auto;
  padding: 100px 24px;
  text-align: center;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-sub {
  color: var(--fg-muted);
  font-size: 1.08rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 13px;
  color: var(--fg-muted);
}

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

.footer-sep {
  opacity: 0.3;
}

/* ── Mobile ── */
@media (max-width: 640px) {
  .hero { padding: 80px 20px 40px; }
  .features-grid { grid-template-columns: 1fr; }
  .step { gap: 16px; }
  .step-num { font-size: 1.6rem; min-width: 36px; }
  .signal { padding: 12px 20px 60px; }
  .signal-card { padding: 20px; }
}