:root {
  --bg: #070809;
  --surface: #13161d;
  --surface2: #171b23;
  --surface3: #1f2430;
  --border: #252b38;
  --accent: #4ea7ff;
  --accent-dim: #2d6aad;
  --text: #ffffff;
  --text-dim: #8892a4;
  --text-dimmer: #4a5568;
  --green: #3dd68c;
  --orange: #f59e0b;
  --red: #f87171;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 8, 9, 0.88);
  backdrop-filter: blur(14px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: -0.5px; color: var(--text); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: none;
}
.btn-nav {
  background: var(--surface3);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-nav:hover { background: var(--surface); border-color: var(--accent-dim); }
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover {
  background: #70bcff;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(78,167,255,0.35);
}
.btn-large { padding: 14px 28px; font-size: 15px; border-radius: 12px; }
.btn-full { width: 100%; }

/* ── Hero ── */
.hero { padding: 100px 0 80px; overflow: hidden; }
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.badge {
  display: inline-block;
  background: rgba(78,167,255,0.1);
  border: 1px solid rgba(78,167,255,0.3);
  color: var(--accent);
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 0.3px;
}
.hero h1 {
  font-size: 60px;
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -2.5px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 440px;
}
.hero-cta { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.cta-note { font-size: 12px; color: var(--text-dimmer); }

/* ── App mockup ── */
.app-window {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  height: 390px;
  box-shadow:
    0 40px 100px rgba(0,0,0,0.7),
    0 0 0 1px rgba(78,167,255,0.06),
    inset 0 1px 0 rgba(255,255,255,0.04);
}
.app-sidebar {
  width: 78px;
  background: #0e1117;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  gap: 4px;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar-item {
  width: 58px;
  padding: 10px 4px;
  text-align: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dimmer);
  border-radius: 8px;
  letter-spacing: 0.5px;
}
.sidebar-item.active {
  background: rgba(78,167,255,0.12);
  color: var(--accent);
}
.app-content {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  min-width: 0;
}
.gauge-row { display: flex; gap: 10px; }
.gauge {
  flex: 1;
  background: var(--surface2);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  text-align: center;
}
.gauge-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 6px;
}
.gauge-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  font-family: 'Cascadia Code', 'Consolas', monospace;
  letter-spacing: -1px;
}
.stat-row { display: flex; gap: 8px; }
.stat {
  flex: 1;
  background: var(--surface2);
  border-radius: 10px;
  padding: 10px 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.stat-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.stat-dot.green { background: var(--green); box-shadow: 0 0 6px rgba(61,214,140,0.5); }
.stat-dot.orange { background: var(--orange); box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.stat-info { min-width: 0; }
.stat-label { font-size: 9px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat-val { font-size: 13px; font-weight: 600; font-family: 'Cascadia Code', 'Consolas', monospace; }
.chat-preview { flex: 1; display: flex; flex-direction: column; gap: 8px; overflow: hidden; }
.chat-msg {
  padding: 10px 13px;
  border-radius: 10px;
  font-size: 11px;
  line-height: 1.5;
  max-width: 90%;
}
.chat-msg.user {
  background: rgba(78,167,255,0.12);
  color: var(--accent);
  align-self: flex-end;
  border-radius: 10px 10px 2px 10px;
}
.chat-msg.aldo {
  background: var(--surface2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 10px 10px 10px 2px;
}

/* ── Shared section styles ── */
section { padding: 100px 0; }
.section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 14px;
}
section h2 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.12;
  margin-bottom: 56px;
  max-width: 560px;
}

/* ── Features ── */
.features {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.feature-card { background: var(--surface); padding: 30px; }
.feature-icon { font-size: 24px; margin-bottom: 16px; }
.feature-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.3px; }
.feature-card p { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

/* ── How it works ── */
.steps { display: flex; align-items: flex-start; gap: 0; }
.step { flex: 1; }
.step-arrow { color: var(--text-dimmer); font-size: 22px; padding: 0 20px; padding-top: 24px; }
.step-num {
  font-size: 52px;
  font-weight: 800;
  color: rgba(78,167,255,0.18);
  line-height: 1;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -2px;
}
.step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.3px; }
.step p { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

/* ── Pricing ── */
.pricing {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.pricing .container { display: flex; flex-direction: column; align-items: center; }
.pricing h2 { max-width: 100%; text-align: center; margin-bottom: 48px; }
.pricing-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 44px;
  max-width: 420px;
  width: 100%;
  box-shadow:
    0 0 0 1px rgba(78,167,255,0.08),
    0 40px 80px rgba(0,0,0,0.5);
}
.pricing-header { margin-bottom: 32px; }
.price { font-size: 52px; font-weight: 800; letter-spacing: -2px; line-height: 1; }
.price-label { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 13px;
}
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.check { color: var(--green); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.pricing-note {
  text-align: center;
  font-size: 12px;
  color: var(--text-dimmer);
  margin-top: 14px;
}

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.faq-item { padding: 26px 30px; border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-item h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.2px; }
.faq-item p { font-size: 14px; color: var(--text-dim); line-height: 1.65; }

/* ── Footer ── */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-tagline { font-size: 13px; color: var(--text-dimmer); }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 12px; color: var(--text-dimmer); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-mockup { display: none; }
  .hero h1 { font-size: 44px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero h1 { font-size: 36px; letter-spacing: -1.5px; }
  section { padding: 72px 0; }
  section h2 { font-size: 28px; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; gap: 36px; }
  .step-arrow { display: none; }
  .pricing-card { padding: 28px 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .btn-nav { display: none; }
}