/* Dimcrow - landing page styles.
   Vanilla, no framework, no web fonts. Mobile-first; desktop layout via
   one media query. Light + dark via prefers-color-scheme. */

:root {
  --bg:        #0d0b12;     /* editor base */
  --bg-elev:   #151222;     /* panel surface */
  --bg-raise:  #1c1730;     /* elevated card */
  --fg:        #e6e1f2;     /* off-white, purple cast */
  --muted:     #9a91b5;
  --accent:    #8b5cf6;     /* vivid violet (border highlight) */
  --accent-2:  #6d28d9;     /* deep violet (selection) */
  --rule:      #2a2440;
  --code-bg:   #1c1730;
  --code-fg:   #c4b5fd;
  --max-w:     820px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:       #f5f3fa;
    --bg-elev:  #ecebf3;
    --bg-raise: #e1deec;
    --fg:       #1a1530;
    --muted:    #5a5573;
    --accent:   #6d28d9;
    --accent-2: #4c1d95;
    --rule:     #d9d4ea;
    --code-bg:  #ecebf3;
    --code-fg:  #4c1d95;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

a:hover {
  border-bottom-color: var(--accent);
}

code {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 0.08em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: "SF Mono", "Fira Mono", "JetBrains Mono", Consolas,
               "Liberation Mono", monospace;
}

/* ---- Top bar -------------------------------------------------------- */

header.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1rem 1.5rem;
}

header.top .brand {
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--fg);
  border-bottom: none;
}

header.top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin-left: auto;
  font-size: 0.95rem;
}

header.top nav a {
  color: var(--muted);
}

header.top nav a:hover {
  color: var(--accent);
}

/* ---- Main ----------------------------------------------------------- */

main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

section {
  padding: 3rem 0 1rem;
  border-bottom: 1px solid var(--rule);
}

section:last-of-type { border-bottom: none; }

.hero {
  padding-top: 4.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1.1;
  margin: 0.4rem 0 1.4rem;
  letter-spacing: -0.01em;
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}

.lede {
  font-size: 1.18rem;
  color: var(--fg);
  max-width: 640px;
  margin: 0;
}

h2 {
  font-size: clamp(1.4rem, 3.5vw, 1.75rem);
  margin: 0 0 1rem;
  letter-spacing: -0.005em;
}

p { margin: 0 0 1rem; }

p strong { color: var(--fg); }

.section-lede {
  color: var(--muted);
  margin-bottom: 1.5rem;
  font-size: 1.02rem;
  max-width: 640px;
}

/* ---- Feature lists -------------------------------------------------- */

ul.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

ul.features li {
  padding: 0.85rem 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 3px;
}

ul.features li strong {
  color: var(--accent);
  margin-right: 0.4em;
}

/* Two columns of features on wider screens */
@media (min-width: 720px) {
  ul.features {
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem 1rem;
  }
}

/* ---- Footer --------------------------------------------------------- */

footer {
  text-align: center;
  padding: 2.5rem 1rem 3rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--rule);
}

footer p { margin: 0; }