:root {
  --bg: #08080A;
  --bg2: #0E0E12;
  --panel: #141419;
  --panel2: #1A1A22;
  --line: #23232B;
  --line2: #2E2E38;
  --text: #F2F2F5;
  --dim: #A7A7B3;
  --faint: #71717F;
  --acc: #10B981; /* Emerald */
  --acc-ink: #022C22;
  --lime: #34D399;
  --green: #10B981;
  --amber: #F59E0B;
  --red: #EF4444;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --disp: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--lime); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-family: var(--disp); line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.wrap { max-width: 1080px; margin-inline: auto; padding-inline: 20px; }
section { padding: 64px 0; }
.sec { border-top: 1px solid var(--line); }

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--acc); color: var(--acc-ink);
  padding: 10px 16px; border-radius: 8px; z-index: 99;
}
.skip:focus { left: 12px; top: 12px; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; border-radius: 4px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 40;
  background: rgba(8, 8, 10, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top-in { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); font-family: var(--disp); font-weight: 700; font-size: 1.1rem;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--acc); color: var(--acc-ink);
  font-size: 0.8rem; font-weight: 800;
}
.menu { display: flex; gap: 20px; margin-left: auto; }
.menu a { color: var(--dim); font-size: 0.95rem; }
.menu a:hover { color: var(--text); text-decoration: none; }
.top-cta { display: flex; align-items: center; gap: 10px; margin-left: 8px; }
.menu-btn { display: none; background: none; border: 1px solid var(--line2); color: var(--text); border-radius: 8px; padding: 8px 12px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 10px; padding: 12px 22px;
  font-weight: 600; font-size: 0.95rem; border: 1px solid transparent; cursor: pointer;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--acc); color: var(--acc-ink); }
.btn-primary:hover { background: #34D399; }
.btn-ghost { border-color: var(--line2); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--acc); color: var(--acc); }
.btn-small { padding: 8px 16px; font-size: 0.88rem; }
.btn-dark { background: var(--acc); color: var(--acc-ink); width: 100%; justify-content: center; }

/* Hero */
.hero {
  display: grid; grid-template-columns: 1.25fr 0.95fr; gap: 40px; align-items: center;
  padding-top: 72px; padding-bottom: 60px;
}
.kicker { color: var(--lime); font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; }
.lede { color: var(--dim); font-size: 1.1rem; max-width: 54ch; }
.hero-cta { display: flex; gap: 12px; margin: 24px 0; flex-wrap: wrap; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.chips li { border: 1px solid var(--line2); color: var(--dim); border-radius: 999px; padding: 6px 14px; font-size: 0.82rem; }

/* Hero Card */
.hero-card { background: var(--panel); border: 1px solid var(--line2); border-radius: 14px; overflow: hidden; }
.card-cap { padding: 10px 16px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 0.78rem; font-family: ui-monospace, monospace; }
.hero-card pre { margin: 0; padding: 18px 20px; overflow-x: auto; }
.hero-card code { font-family: ui-monospace, monospace; font-size: 0.85rem; line-height: 1.6; color: #D8D8E2; }

/* Colors in code */
.c-dim { color: var(--faint); }
.c-green { color: var(--green); font-weight: bold; }
.c-amber { color: var(--amber); }
.c-red { color: var(--red); font-weight: bold; }

/* Simulator */
.sub { color: var(--dim); max-width: 60ch; margin-bottom: 24px; }
.sim-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.sim-panel { background: var(--panel); border: 1px solid var(--line2); border-radius: 12px; padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.sim-header { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; font-weight: 600; color: var(--dim); }
.sim-btn { background: none; border: 1px solid var(--line2); color: var(--lime); border-radius: 6px; padding: 4px 10px; font-size: 0.78rem; cursor: pointer; }
.sim-btn:hover { background: var(--panel2); }
textarea#sim-input {
  width: 100%; background: var(--bg2); border: 1px solid var(--line2); border-radius: 8px;
  color: #E2E8F0; padding: 12px; font-family: ui-monospace, monospace; font-size: 0.88rem; resize: vertical;
}
.sim-actions { display: flex; gap: 10px; }
.sim-output {
  background: var(--bg2); border: 1px solid var(--line2); border-radius: 8px; padding: 14px;
  min-height: 240px; font-family: ui-monospace, monospace; font-size: 0.85rem; overflow-y: auto; white-space: pre-wrap;
}
.badge { background: var(--panel2); border: 1px solid var(--line2); color: var(--lime); padding: 3px 8px; border-radius: 6px; font-size: 0.75rem; }

/* Grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.feature-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.feat-icon { font-size: 1.6rem; margin-bottom: 12px; }
.feature-card p { color: var(--dim); font-size: 0.92rem; margin: 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; }
.code-box { background: var(--panel); border: 1px solid var(--line2); border-radius: 12px; overflow: hidden; }
.code-box pre { margin: 0; padding: 16px 20px; overflow-x: auto; }
.code-box code { font-family: ui-monospace, monospace; font-size: 0.85rem; color: #E2E8F0; }
.box-note { padding: 0 18px 14px; font-size: 0.85rem; }

/* FAQ */
.faq details { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); margin-bottom: 10px; padding: 0 18px; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; }
.faq details[open] summary { color: var(--lime); }
.faq p { color: var(--dim); padding-bottom: 14px; margin: 0; }

/* Contact Section */
.lime-wrap { background: var(--acc); color: var(--acc-ink); }
.contact-in { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; padding-block: 64px; }
.contact-copy h2 { color: var(--acc-ink); }
.contact-copy p { color: #064E3B; }
.contact-copy .alt-line a { color: var(--acc-ink); text-decoration: underline; }
.lead-form { background: var(--bg); border-radius: 14px; padding: 26px; border: 1px solid var(--line2); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 0.85rem; color: var(--dim); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; background: var(--bg2); border: 1px solid var(--line2);
  border-radius: 10px; color: var(--text); padding: 11px 14px; font: inherit;
}
.field input:focus, .field textarea:focus { border-color: var(--acc); outline: none; }
.hp { position: absolute; left: -9999px; }
.form-status { min-height: 22px; font-size: 0.9rem; margin: 10px 0 0; }
.form-status.ok { color: var(--green); }
.form-status.err { color: var(--red); }

/* About & Footer */
.about p { color: var(--dim); max-width: 72ch; }
.foot { border-top: 1px solid var(--line); padding: 34px 0 44px; background: var(--bg2); }
.foot-in { display: grid; gap: 14px; }
.foot-brand { display: flex; align-items: center; gap: 10px; margin: 0; color: var(--dim); font-size: 0.92rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: 16px; }
.foot-links a { color: var(--dim); font-size: 0.88rem; }
.foot-links a:hover { color: var(--lime); }
.foot-fine { color: var(--faint); font-size: 0.8rem; margin: 0; }

/* Responsive */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .sim-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .contact-in { grid-template-columns: 1fr; }
  .js .menu {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg2); border-bottom: 1px solid var(--line2);
    flex-direction: column; padding: 14px 20px; gap: 12px;
  }
  .js .menu[data-open] { display: flex; }
  .js .menu-btn { display: inline-block; }
}
@media (max-width: 640px) {
  .grid-3 { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
}