/* Libre Computer GPIO Pinout — dark theme, pinout.xyz-style */

:root {
  --bg: #14161a;
  --bg-raised: #1d2026;
  --bg-pin: #22262d;
  --border: #33383f;
  --text: #e8eaed;
  --text-dim: #9aa0a6;
  --accent: #4da3ff;

  --c-power5v: #e5484d;
  --c-power3v3: #f76b15;
  --c-gnd: #454b54;
  --c-gpio: #46a758;
  --c-i2c: #3b82f6;
  --c-spi: #a855f7;
  --c-uart: #eac54f;
  --c-pwm: #ec5f87;
  --c-audio: #22b8cf;
  --c-adc: #94d82d;
  --c-clk: #adb5bd;
  --c-jtag: #ff922b;
  --c-cec: #7048e8;
  --c-ir: #f06595;
  --c-sdio: #66d9e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- top bar ---- */

#topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

#brand { display: flex; align-items: baseline; gap: 10px; }
#brand-name { font-size: 19px; font-weight: 700; letter-spacing: .3px; }
#brand-sub { font-size: 14px; color: var(--text-dim); }

#controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-left: auto;
}

#controls label { color: var(--text-dim); font-size: 13px; }

select, input[type="search"] {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 14px;
}

select:focus, input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}

input[type="search"] { min-width: 240px; }

/* ---- layout ---- */

main {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding: 24px 20px 40px;
  max-width: 1280px;
  margin: 0 auto;
}

#diagram {
  flex: 1 1 560px;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-content: flex-start;
}

#panel {
  flex: 1 1 320px;
  min-width: 300px;
  max-width: 460px;
}

footer {
  padding: 14px 20px 26px;
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
}

/* ---- headers and pins ---- */

.header-block { break-inside: avoid; }

.header-block h2 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: .8px;
}

.pin-grid-40 {
  display: grid;
  grid-template-columns: 2.2ch 1fr 1fr 2.2ch;
  row-gap: 3px;
  column-gap: 8px;
  max-width: 560px;
}

.pin-grid-strip {
  display: grid;
  grid-template-columns: 2.2ch minmax(220px, 1fr);
  row-gap: 3px;
  column-gap: 8px;
}

.pin-num {
  align-self: center;
  color: var(--text-dim);
  font-size: 11px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.pin-num.left { text-align: right; }
.pin-num.right { text-align: left; }

.pin {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-pin);
  border: 1px solid var(--border);
  border-left-width: 10px;
  border-radius: 4px;
  padding: 3px 8px;
  min-height: 26px;
  cursor: pointer;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11.5px;
  white-space: nowrap;
  overflow: hidden;
}

.pin .pin-label { overflow: hidden; text-overflow: ellipsis; }

.pin.hl { outline: 2px solid var(--accent); outline-offset: -1px; }
.pin.dim { opacity: .22; }
.pin.match { outline: 2px solid #fff; outline-offset: -1px; }
.pin.selected { outline: 2px solid #fff; outline-offset: -1px; }

.cls-power5v  { border-left-color: var(--c-power5v); }
.cls-power3v3 { border-left-color: var(--c-power3v3); }
.cls-gnd      { border-left-color: var(--c-gnd); }
.cls-gpio     { border-left-color: var(--c-gpio); }
.cls-i2c      { border-left-color: var(--c-i2c); }
.cls-spi      { border-left-color: var(--c-spi); }
.cls-uart     { border-left-color: var(--c-uart); }
.cls-pwm      { border-left-color: var(--c-pwm); }
.cls-audio    { border-left-color: var(--c-audio); }
.cls-adc      { border-left-color: var(--c-adc); }
.cls-clk      { border-left-color: var(--c-clk); }
.cls-jtag     { border-left-color: var(--c-jtag); }
.cls-cec      { border-left-color: var(--c-cec); }
.cls-ir       { border-left-color: var(--c-ir); }
.cls-sdio     { border-left-color: var(--c-sdio); }

/* ---- detail panel ---- */

#pin-detail {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  margin-bottom: 20px;
}

#pin-detail h3 {
  margin: 0 0 4px;
  font-size: 17px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cls-badge {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex: none;
}

#pin-detail table {
  border-collapse: collapse;
  margin-top: 10px;
  width: 100%;
  font-size: 13px;
}

#pin-detail th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 500;
  padding: 3px 12px 3px 0;
  vertical-align: top;
  white-space: nowrap;
}

#pin-detail td {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  padding: 3px 0;
  word-break: break-word;
}

.func-chips { display: flex; flex-wrap: wrap; gap: 5px; }

.func-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11.5px;
}

.func-chip.ref { border-color: var(--accent); color: var(--accent); }

pre.usage {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  overflow-x: auto;
  margin: 10px 0 0;
}

.muted { color: var(--text-dim); margin: 0; }

/* ---- legend ---- */

#legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 0 2px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--text-dim);
  cursor: default;
}

.legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex: none;
}

/* ---- tooltip ---- */

#tooltip {
  position: fixed;
  z-index: 20;
  background: #000c;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  pointer-events: none;
  max-width: 340px;
  white-space: pre-line;
  backdrop-filter: blur(2px);
}

@media (max-width: 900px) {
  main { padding: 16px 12px 30px; }
  #panel { max-width: none; }
  input[type="search"] { min-width: 160px; flex: 1; }
}