:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #2ea043;
  --accent-hover: #3fb950;
  --border: #30363d;
  --radius: 8px;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 17, 23, 0.9);
  border-bottom: 1px solid var(--border);
}

.header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--accent);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

nav a:hover {
  color: var(--text);
}

.nav-gh {
  color: var(--accent);
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin: 0 0 2rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Signup form */
.signup-form {
  display: flex;
  gap: 0.5rem;
  max-width: 420px;
  margin-bottom: 0.75rem;
}

.signup-form input[type="email"] {
  flex: 1;
  padding: 0.65rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s;
}

.signup-form input[type="email"]:focus {
  border-color: var(--accent);
}

.signup-form input[type="email"]::placeholder {
  color: var(--text-muted);
}

.signup-form button {
  flex-shrink: 0;
  border: none;
  cursor: pointer;
}

.signup-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.signup-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}

.signup-success {
  color: var(--accent);
  font-weight: 500;
  margin: 0;
  padding: 0.65rem 0;
}

.cta .signup-form {
  max-width: 400px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

/* Trust bar */
.trust {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  justify-content: center;
}

.trust-list li {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Sections */
.problem,
.solution,
.today,
.pricing,
.faq,
.cta {
  padding: 3rem 0;
}

.problem { border-bottom: 1px solid var(--border); }

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

h3:first-child { margin-top: 0; }

.problem ul,
.today ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.problem li,
.today li {
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
  color: var(--text-muted);
}

.problem li::before {
  content: "×";
  position: absolute;
  left: 0;
  color: #f85149;
  font-weight: 600;
}

.today li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.pipeline {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--accent);
  margin: 1rem 0 2rem;
}

.steps {
  margin: 0;
  padding-left: 1.5rem;
}

.steps li {
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.steps strong {
  color: var(--text);
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.plan {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.plan h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.plan p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-featured {
  border-color: var(--accent);
  background: rgba(46, 160, 67, 0.08);
}

.plan-featured h3 {
  color: var(--accent);
}

/* FAQ */
.faq dl {
  margin: 0;
}

.faq dt {
  font-weight: 600;
  margin-top: 1.25rem;
  color: var(--text);
}

.faq dt:first-child { margin-top: 0; }

.faq dd {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
  padding-left: 0;
}

.faq code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-soft);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* Final CTA */
.cta {
  text-align: center;
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.cta h2 {
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent);
}