/* Scratchpad landing page. Colours follow the app's theme (crates/scratchpad/src/theme.rs). */

:root {
  --bg: #ffffff;
  --surface: #f5f5f4;
  --border: #e2e2e0;
  --text: #1d1d1f;
  --text-dim: #6e6e73;
  --accent: #d99a00;
  /* The app's amber is too light for text on white; links and markers use a darker shade. */
  --accent-text: #8a6100;
  --on-accent: #1d1d1f;
  --shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
  --sans: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system,
    Roboto, "Helvetica Neue", sans-serif;
  --mono: "Cascadia Mono", Consolas, ui-monospace, "SF Mono", monospace;
  --max-w: 760px;
  --measure: 36rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --surface: #252527;
    --border: #3a3a3c;
    --text: #e8e8ea;
    --text-dim: #98989f;
    --accent: #f2b32a;
    --accent-text: #f2b32a;
    --shadow: 0 6px 28px rgba(0, 0, 0, 0.45);
  }
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent-text); }

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ── Nav ── */

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

nav,
main,
footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

nav {
  padding-block: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 650;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
}

.nav-links a {
  font-size: 0.875rem;
  text-decoration: none;
}

.nav-links a, footer a { color: var(--text-dim); }
.nav-links a:hover, footer a:hover { color: var(--accent-text); }

/* ── Layout and type ── */

section { padding: 4rem 0; }
section + section { border-top: 1px solid var(--border); }

h1, h2, h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 6vw, 2.75rem); }

h2 {
  font-size: 1.4rem;
  font-weight: 650;
  margin-bottom: 1.75rem;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

p, li {
  color: var(--text-dim);
  max-width: var(--measure);
}

code, kbd {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.05em 0.35em;
  border-radius: 4px;
  white-space: nowrap;
}

/* ── Hero ── */

.hero { padding: 4.5rem 0 4rem; }

.tagline {
  font-size: 1.1rem;
  margin-top: 1rem;
  line-height: 1.7;
}

.actions {
  margin-top: 2rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.55rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.btn.primary:hover { filter: brightness(1.08); }

.btn.secondary {
  background: var(--surface);
  color: var(--text);
}

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

/* ── Screenshots ── */

.screenshot { margin-top: 2.5rem; }

.screenshot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.screenshot figcaption {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  text-align: center;
}

/* ── Features ── */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1rem 1.5rem;
}

/* The wide and the narrow window are equally tall, so 2fr / 1fr lines them up. */
.shots {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.feature {
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.feature h3 { color: var(--accent-text); }
.feature kbd { background: var(--bg); }

/* ── How it works and under the hood ── */

.how ol,
.tech ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.how ol { counter-reset: steps; }

.how li, .tech li { position: relative; }

.how li {
  counter-increment: steps;
  padding-left: 2.5rem;
}

.how li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.tech li { padding-left: 1.25rem; }

.tech li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-text);
}

.how strong, .tech strong { color: var(--text); }

/* ── Install ── */

.install-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.install-card pre {
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.install-card pre code {
  font-size: inherit;
  background: none;
  border: none;
  padding: 0;
  white-space: pre;
}

.cmd-comment { color: var(--text-dim); }

.cmd-prompt {
  color: var(--accent-text);
  font-weight: 700;
}

.install-note {
  max-width: none;
  padding: 0.85rem 1.25rem 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
}

/* ── Footer ── */

footer {
  padding-block: 2rem 3rem;
  border-top: 1px solid var(--border);
}

footer p { font-size: 0.85rem; }
footer a { margin-left: 0.5rem; }

.logo-sm {
  font-weight: 650;
  color: var(--text);
}

/* ── Small screens ── */

@media (max-width: 480px) {
  nav, main, footer { padding-inline: 1rem; }
  .nav-links { gap: 0.9rem; }
  .hero { padding: 2.75rem 0 2.5rem; }
  section { padding: 2.75rem 0; }
  .shots { grid-template-columns: 1fr; }
  .shots .screenshot:last-child { max-width: 18rem; margin-inline: auto; }
}