/* Fuzz14 - ink on graph paper, like the schematic in the plugin window */

:root {
  --paper: #fbfbf8;
  --grid: rgba(29, 29, 31, 0.06);
  --ink: #1d1d1f;
  --grey: #666;
  --line: #d9d9d4;
  --red: #c0392b;
  --glow: #ff3b2f;

  --heading: "Space Grotesk", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--paper);
  /* graph paper: a fine grid with a heavier line every fifth square */
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(rgba(29, 29, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 29, 31, 0.035) 1px, transparent 1px);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
}

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

main, .masthead, .footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ------------------------------------------------------------------ masthead */

.masthead {
  padding-top: 56px;
  padding-bottom: 24px;
  text-align: center;
}

.logo-diode {
  width: 120px;
  height: 60px;
  stroke: var(--ink);
  stroke-width: 4;
  fill: var(--ink);
}

.logo-diode polygon,
.logo-diode .bar {
  animation: conduct 2.4s ease-in-out infinite;
}

.logo-diode .bar { stroke-width: 6; }

@keyframes conduct {
  0%, 55%, 100% { fill: var(--ink); stroke: var(--ink); filter: none; }
  70% { fill: var(--glow); stroke: var(--glow); filter: drop-shadow(0 0 8px var(--glow)); }
}

h1 {
  margin: 8px 0 0;
  font-family: var(--heading);
  font-size: clamp(64px, 14vw, 140px);
  line-height: 1;
  letter-spacing: -0.03em;
}

h1 span { color: var(--red); }

.subtitle {
  margin: 8px 0 0;
  color: var(--grey);
  font-size: 18px;
}

/* ------------------------------------------------------------------ sections */

section { padding: 40px 0; }

h2 {
  font-family: var(--heading);
  font-size: 32px;
  margin: 0 0 16px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 6px;
}

.ref {
  display: inline-block;
  margin-right: 10px;
  padding: 0 8px;
  border: 2px solid var(--red);
  color: var(--red);
  font-family: var(--mono);
  font-size: 18px;
  vertical-align: middle;
}

h3 {
  margin: 0 0 8px;
  font-family: var(--heading);
  font-size: 20px;
}

.small { color: var(--grey); font-size: 14px; }

code {
  background: rgba(29, 29, 31, 0.07);
  padding: 1px 5px;
  border-radius: 3px;
  word-break: break-all;
}

/* ------------------------------------------------------------------ hero */

.hero {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: center;
}

.lead {
  font-family: var(--heading);
  font-size: 22px;
  line-height: 1.4;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 8px;
}

.button {
  display: inline-block;
  padding: 12px 26px;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--heading);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.button:hover,
.button:focus-visible {
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 0 18px rgba(255, 59, 47, 0.45);
}

.button.ghost {
  background: transparent;
  color: var(--ink);
}

.button.ghost:hover,
.button.ghost:focus-visible { color: var(--paper); }

.window,
.sheet {
  margin: 0;
  background: #fff;
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(29, 29, 31, 0.12);
}

.window img,
.sheet img {
  display: block;
  width: 100%;
  height: auto;
}

.window figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  color: var(--grey);
  font-size: 13px;
}

/* ------------------------------------------------------------------ cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: #fff;
  border: 1.5px solid var(--ink);
  padding: 16px 18px;
}

.card p, .card ol { margin: 0; }
.card ol { padding-left: 20px; }

/* ------------------------------------------------------------------ diode lab */

.diode-lab {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  align-items: start;
}

.diode-controls label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

.diode-controls select {
  width: 100%;
  padding: 8px 10px;
  border: 2px solid var(--ink);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.diode-facts {
  margin: 18px 0 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  font-size: 14px;
}

.diode-facts dt { color: var(--grey); }
.diode-facts dd { margin: 0; }

#diode-curve {
  width: 100%;
  height: auto;
  background: #fff;
  border: 2px solid var(--ink);
}

/* ------------------------------------------------------------------ listen */

.clips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.clips figure {
  margin: 0;
  background: #fff;
  border: 1.5px solid var(--ink);
  padding: 10px 12px;
}

.clips figcaption { font-weight: 600; margin-bottom: 6px; }
.clips audio { width: 100%; }
.clips figure.playing { border-color: var(--red); box-shadow: 0 0 14px rgba(255, 59, 47, 0.3); }

/* ------------------------------------------------------------------ specs + footer */

.specs { padding-left: 20px; }
.specs li { margin-bottom: 8px; }

.footer {
  padding-top: 32px;
  padding-bottom: 48px;
  border-top: 2px solid var(--ink);
  text-align: center;
}

.credit {
  font-family: var(--heading);
  font-size: 18px;
  white-space: pre;
}

.studio img { max-width: 100%; height: auto; }

/* ------------------------------------------------------------------ phones */

/* grid items may shrink below their content (the screenshot, the plot) */
.hero > *,
.diode-lab > *,
.cards > *,
.clips > * { min-width: 0; }

@media (max-width: 820px) {
  .hero,
  .diode-lab { grid-template-columns: minmax(0, 1fr); }
  .masthead { padding-top: 32px; }
  h2 { font-size: 26px; }
  .credit { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .logo-diode polygon,
  .logo-diode .bar { animation: none; }
}