:root {
  --ink: #0b1220;
  --ink-2: #111a2e;
  --ink-3: #1a2540;
  --line-dark: #24314f;
  --paper: #ffffff;
  --paper-2: #f5f7fb;
  --line: #e3e8f1;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;
  --on-dark: #e8edf7;
  --on-dark-2: #9fb0cc;
  --accent: #14b8a6;
  --accent-strong: #0d9488;
  --accent-soft: #ccfbf1;
  --violet: #8b5cf6;
  --pass: #16a34a;
  --pass-soft: #dcfce7;
  --fail: #dc2626;
  --fail-soft: #fee2e2;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(15 23 42 / 6%), 0 8px 24px rgb(15 23 42 / 8%);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--accent-strong); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.3rem, 5.5vw, 3.9rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
code, pre { font-family: var(--mono); }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin-bottom: 0.75rem;
}
.lead { font-size: 1.2rem; color: var(--text-2); max-width: 46rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.3rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--accent); color: #042f2e; }
.btn-primary:hover { background: #2dd4bf; }
.btn-ghost { border-color: var(--line-dark); color: var(--on-dark); background: transparent; }
.btn-ghost:hover { border-color: var(--on-dark-2); }
.btn-light { border-color: var(--line); color: var(--text); background: var(--paper); }
.btn-light:hover { border-color: var(--text-3); }
.btn-sm { padding: 0.5rem 0.9rem; font-size: 0.9rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgb(11 18 32 / 88%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .container { display: flex; align-items: center; gap: 1.5rem; height: 64px; }
.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--on-dark); text-decoration: none; font-weight: 800; font-size: 1.1rem; }
.brand svg { width: 30px; height: 30px; }
.brand b { color: var(--accent); font-weight: 800; }
.nav { display: flex; gap: 1.4rem; margin-left: auto; align-items: center; }
.nav a:not(.btn) { color: var(--on-dark-2); text-decoration: none; font-size: 0.95rem; font-weight: 500; }
.nav a:not(.btn):hover, .nav a[aria-current] { color: var(--on-dark); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; color: var(--on-dark); padding: 0.5rem; cursor: pointer; }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-dark);
    padding: 0.5rem 16px 1rem;
  }
  .nav.open { display: flex; }
  .nav a:not(.btn) { padding: 0.7rem 0; }
  .nav .btn { justify-content: center; margin-top: 0.5rem; }
}

/* Dark sections */
.dark { background: var(--ink); color: var(--on-dark); }
.dark .lead, .dark p { color: var(--on-dark-2); }
.dark .eyebrow { color: var(--accent); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3.5rem, 7vw, 5.5rem);
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgb(20 184 166 / 18%), transparent 60%),
    radial-gradient(40rem 26rem at -10% 110%, rgb(139 92 246 / 16%), transparent 60%),
    var(--ink);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center; }
.hero h1 .accent { background: linear-gradient(90deg, #2dd4bf, #a78bfa); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { color: var(--on-dark-2); margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.hero-note { margin-top: 1.4rem; font-size: 0.9rem; color: var(--on-dark-2); }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }

/* Hero "pipeline" visual */
.pipeline { display: grid; gap: 0.8rem; }
.pane {
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-size: 0.86rem;
  box-shadow: 0 20px 50px rgb(0 0 0 / 30%);
}
.pane-head { display: flex; align-items: center; gap: 0.5rem; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--on-dark-2); margin-bottom: 0.6rem; }
.pane-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.pane-head .dot.violet { background: var(--violet); }
.pane-head .dot.green { background: #22c55e; }
.pane ol { margin: 0; padding-left: 1.2rem; color: var(--on-dark); }
.pane pre { margin: 0; white-space: pre-wrap; color: var(--on-dark); font-size: 0.82rem; line-height: 1.55; }
.pane .arrow { text-align: center; color: var(--on-dark-2); }
.result-row { display: flex; align-items: center; gap: 0.55rem; color: var(--on-dark); padding: 0.15rem 0; }
.tick { color: #22c55e; font-weight: 800; }

/* Gherkin colouring (hero and demo) */
.g-kw { color: #c4b5fd; font-weight: 600; }
.g-str { color: #5eead4; }
.g-tag { color: #fbbf24; }
.g-cmt { color: #7c8aa5; font-style: italic; }
.g-tbl { color: #93c5fd; }
.g-var { color: #f9a8d4; }

/* Sections */
section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-head { max-width: 48rem; margin-bottom: 2.5rem; }
.alt { background: var(--paper-2); }

.stack { display: flex; flex-wrap: wrap; gap: 0.6rem 2rem; justify-content: center; padding: 1.6rem 0; color: var(--on-dark-2); font-weight: 600; font-size: 0.95rem; border-top: 1px solid var(--line-dark); }
.stack span { opacity: 0.85; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; counter-reset: step; }
.step-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow);
}
.step-card::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  margin-bottom: 1rem;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}
.step-card p { color: var(--text-2); margin: 0; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

.features { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1rem; }
.feature {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.feature svg { width: 26px; height: 26px; color: var(--accent-strong); margin-bottom: 0.6rem; }
.feature p { color: var(--text-2); margin: 0; font-size: 0.95rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.checklist li { display: grid; grid-template-columns: 28px 1fr; gap: 0.8rem; }
.checklist li::before {
  content: "";
  width: 24px; height: 24px; margin-top: 2px;
  border-radius: 7px;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23042f2e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 15px no-repeat;
}
.checklist strong { display: block; }
.dark .checklist span, .checklist span { color: var(--text-2); }
.dark .checklist span { color: var(--on-dark-2); }

/* Pricing */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; align-items: stretch; }
@media (max-width: 960px) { .plans { grid-template-columns: 1fr; } }
.plan {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem;
}
.plan.featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan .price { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.02em; margin: 0.2rem 0 0.4rem; }
.plan .price small { font-size: 0.95rem; font-weight: 600; color: var(--text-3); }
.plan > p { color: var(--text-2); }
.plan ul { padding-left: 1.1rem; color: var(--text-2); margin: 0 0 1.5rem; flex: 1; }
.plan li { margin-bottom: 0.35rem; }
.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; font-weight: 700; background: var(--accent-soft); color: var(--accent-strong); }
.badge.muted { background: var(--paper-2); color: var(--text-3); border: 1px solid var(--line); }

/* CTA / contact */
.cta {
  text-align: center;
  background:
    radial-gradient(40rem 20rem at 50% 0%, rgb(20 184 166 / 20%), transparent 70%),
    var(--ink);
}
.cta .lead { margin-inline: auto; }
.cta .hero-actions { justify-content: center; }

.site-footer { background: var(--ink); color: var(--on-dark-2); border-top: 1px solid var(--line-dark); padding: 2rem 0; font-size: 0.9rem; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; }
.site-footer a { color: var(--on-dark-2); text-decoration: none; }
.site-footer a:hover { color: var(--on-dark); }
.site-footer nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }

:focus-visible { outline: 3px solid #5eead4; outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }