/* Langsplice landing. Palette from the brand mark (app/assets/images/logo.svg):
   ink #2B3A44 / green #1F9D4F on light, ink #E2EAEF / green #57D977 on dark. */

:root {
  --ink: #2b3a44;
  --muted: #687076;
  --green: #1f9d4f;
  --green-soft: #e7f5ec;
  --bg: #ffffff;
  --card: #f6f8f7;
  --border: #dde3e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e2eaef;
    --muted: #9ba1a6;
    --green: #57d977;
    --green-soft: #17301f;
    --bg: #151718;
    --card: #1d2021;
    --border: #2e3335;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
}

a {
  color: var(--green);
}

.site-header {
  max-width: 680px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
}

.button {
  display: inline-block;
  background: var(--green);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 10px;
}

.button:hover {
  filter: brightness(1.08);
}

.button-small {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.hero {
  padding: 48px 0 8px;
}

.hero h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 24px;
}

.cta-row {
  margin-bottom: 16px;
}

.demo {
  padding: 24px 0;
}

.demo-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.demo-text {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  margin: 0 0 20px;
}

.splice {
  border-radius: 6px;
  padding: 0 3px;
  transition: background 0.15s;
}

.splice.on {
  background: var(--green-soft);
  color: var(--green);
  font-weight: 600;
  cursor: pointer;
}

.demo-slider {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 600;
}

.demo-slider input {
  flex: 1;
  accent-color: var(--green);
}

.demo-hint {
  margin: 12px 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.steps {
  padding: 32px 0;
}

.steps ol {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.steps li {
  counter-increment: step;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
}

.steps li h3::before {
  content: counter(step) ". ";
  color: var(--green);
}

.steps p {
  margin: 0;
  color: var(--muted);
}

.closer {
  padding: 24px 0 64px;
}

.closer p {
  color: var(--muted);
  margin: 0 0 24px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 20px 48px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}