/* stevmidi.com. Colours are the app's Magenta Pulse palette
   (src/view/theme/palettes.rs), the theme in the README screenshot; the
   roles follow docs/030-ui-design.md § Theme & Contrast. One font and one
   weight, as in the app: hierarchy from size and colour. */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/IBMPlexSans-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --bg-lane: #0f0f0f;          /* bg + 5, the arranger lane fill */
  --bg-panel: #181818;
  --bg-timeline: #242424;
  --separator: #3a3a3a;
  --grid-major: #4a4a4a;
  --fg: #efefef;
  --fg-dim: #a8a8a8;
  --accent: #ff3daa;
  --playhead: #33e1ff;
  --wrap: 68rem;
  --gutter: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 1.0625rem/1.6 "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); text-decoration-color: var(--grid-major); text-underline-offset: 0.2em; }
a:hover { color: var(--accent); text-decoration-color: var(--accent); }

h1, h2, h3 { font-weight: 400; line-height: 1.2; margin: 0; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Frame chrome: the header bar, as the app's. */
.top {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--accent);
  position: sticky;
  top: 0;
  z-index: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 3.25rem;
  font-size: 0.9375rem;
}
.nav a { color: var(--fg-dim); text-decoration: none; }
.nav a:hover { color: var(--fg); }
.nav .wordmark {
  color: var(--fg);
  font-size: 1.375rem;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav .wordmark img { display: block; }
.nav .nav-repo { color: var(--fg); }

/* The hero sits on a bar-and-beat grid, like an empty arranger lane. */
.hero {
  background:
    repeating-linear-gradient(90deg,
      var(--separator) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg,
      #161616 0 1px, transparent 1px 12px),
    var(--bg-lane);
  border-bottom: 1px solid var(--separator);
  padding: 5rem 0 4rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 4rem);
  max-width: 16ch;
  letter-spacing: -0.01em;
}

.lede {
  max-width: 38rem;
  font-size: 1.1875rem;
  color: var(--fg);
  margin: 1.5rem 0 2rem;
  /* Lift the text off the grid lines. */
  text-shadow: 0 0 12px var(--bg), 0 0 4px var(--bg);
}

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

.button {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--grid-major);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--fg);
  text-decoration: none;
}
.button:hover { border-color: var(--fg-dim); color: var(--fg); }
.button.primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.button.primary:hover { background: #ff5cb8; color: var(--bg); }

.status {
  color: var(--fg-dim);
  font-size: 0.9375rem;
  margin: 1.5rem 0 0;
  text-shadow: 0 0 8px var(--bg);
}

.shot { margin-top: 3rem; margin-bottom: 0; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--separator);
  border-radius: 6px;
}

section.wrap { margin-top: 5rem; }
section.wrap > p { max-width: 42rem; color: var(--fg-dim); }

h2 {
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}
h2::before {
  /* The playhead's loop-start marker, a small triangle in the ruler. */
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 0.5em solid var(--accent);
  border-top: 0.3em solid transparent;
  border-bottom: 0.3em solid transparent;
  margin-right: 0.5em;
  vertical-align: 0.15em;
}

h3 { font-size: 1.125rem; margin-bottom: 0.5rem; }

kbd {
  font: inherit;
  font-size: 0.9em;
  display: inline-block;
  min-width: 1.6em;
  padding: 0 0.4em;
  text-align: center;
  background: var(--bg-timeline);
  border: 1px solid var(--separator);
  border-bottom-width: 2px;
  border-radius: 4px;
  color: var(--fg);
  line-height: 1.5;
}

/* The steps are drawn as clips: a header strip in the track colour and a
   16% tint over the panel base (030 § Clip Anatomy). */
.clips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 2px;
}

.clip {
  background:
    linear-gradient(color-mix(in srgb, var(--track) 16%, transparent),
                    color-mix(in srgb, var(--track) 16%, transparent)),
    var(--bg-panel);
  border-top: 20px solid color-mix(in srgb, var(--track) 45%, var(--bg-panel));
  padding: 1rem 1.1rem 1.25rem;
  counter-increment: step;
  position: relative;
}
.clip::before {
  content: counter(step);
  position: absolute;
  top: -20px;
  left: 0.6rem;
  line-height: 20px;
  font-size: 0.8125rem;
  color: var(--fg);
}
.clip p { margin: 0; color: var(--fg-dim); font-size: 0.9375rem; }
.clip h3 kbd { margin-right: 0.35em; }

/* The capture table: a 2×2 grid with the ruler's readout strip on top. */
.grid {
  display: grid;
  border: 1px solid var(--separator);
  border-radius: 4px;
  overflow: hidden;
  margin: 1.5rem 0;
  max-width: 52rem;
}
.grid > div {
  display: grid;
  grid-template-columns: 7rem 1fr 1fr;
  border-top: 1px solid var(--separator);
}
.grid > div:first-child { border-top: 0; }
.grid span { padding: 0.75rem 1rem; }
.grid span + span { border-left: 1px solid var(--separator); }
.grid-head { background: var(--bg-timeline); color: var(--fg-dim); font-size: 0.9375rem; }
.grid [role="rowheader"] { background: var(--bg-panel); color: var(--fg-dim); }
.grid [role="cell"] { background: var(--bg-lane); }

.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
  max-width: 52rem;
}
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--separator);
  border-radius: 4px;
  padding: 1.25rem;
}
.panel p { margin: 0; color: var(--fg-dim); }
.panel .vst { display: block; margin-top: 1rem; width: 84px; height: auto; }

section.wrap > p.aside {
  border-left: 2px solid var(--playhead);
  padding-left: 1rem;
  color: var(--fg);
}

.not-planned {
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: 52rem;
}
.not-planned li {
  background: var(--bg-panel);
  border: 1px solid var(--separator);
  border-radius: 4px;
  padding: 0.25rem 0.65rem;
  font-size: 0.9375rem;
  color: var(--fg-dim);
}

.foot {
  margin-top: 6rem;
  padding-top: 2rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--separator);
  color: var(--fg-dim);
  font-size: 0.9375rem;
}
.foot .verse { color: var(--fg); }
.foot .links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.foot .links a { color: var(--fg-dim); }
.foot .links a:hover { color: var(--accent); }
.foot .fine { font-size: 0.8125rem; }

@media (max-width: 40rem) {
  .nav { gap: 1rem; }
  .nav a:not(.wordmark):not(.nav-repo) { display: none; }
  .hero { padding: 3rem 0 2.5rem; }
  section.wrap { margin-top: 3.5rem; }
  .grid > div { grid-template-columns: 5rem 1fr 1fr; }
  .grid span { padding: 0.6rem 0.6rem; font-size: 0.9375rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}