@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #0b1220;
  --panel: #101a2c;
  --line: #263852;
  --text: #e8ecf2;
  --text-dim: #90a2b8;
  --amber: #e2933d;
  --green: #5fcb8e;
  --red: #e2664a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.titleblock {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 0.75rem 1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.tb-label { color: var(--text-dim); margin-right: 0.5em; }
.tb-value { color: var(--text); }
.status-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 0.4em;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero { padding: 2.5rem 0 1.5rem; }
h1 {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  line-height: 1.25;
  margin: 0 0 0.5rem;
}
.tagline {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 0 0 2rem;
  max-width: 46ch;
}

.pinout { width: 100%; height: auto; margin: 1rem 0 0.5rem; }
.pinout .chip-fill { fill: var(--panel); stroke: var(--amber); stroke-width: 2; }
.pinout .pin-line { stroke: var(--line); stroke-width: 2; }
.pinout .pin-pad { fill: var(--green); }
.pinout text { font-family: 'IBM Plex Mono', monospace; fill: var(--text-dim); font-size: 13px; }
.pinout .chip-label { font-family: 'Space Mono', monospace; fill: var(--text); font-size: 18px; font-weight: 700; }
.pinout .pin-no { fill: var(--amber); font-size: 11px; }

section { padding: 2rem 0; border-top: 1px solid var(--line); }
h2 {
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--amber);
  margin: 0 0 1.25rem;
}

.intro { max-width: 62ch; color: var(--text); }

.spec-row {
  display: flex;
  gap: 1rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}
.spec-row:first-child { border-top: none; }
.spec-no {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--amber);
  font-size: 0.85rem;
  flex-shrink: 0;
  padding-top: 0.1rem;
}
.spec-text { color: var(--text); }

.request-box {
  border: 1px dashed var(--line);
  padding: 1.25rem;
  max-width: 62ch;
}
.request-box p { margin: 0 0 1rem; color: var(--text); }
.request-box p:last-child { margin-bottom: 0; }

.email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--green);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 0.6rem 1rem;
  background: var(--panel);
}
.email-link:hover { border-color: var(--green); }
.email-link:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

footer {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
  padding: 2rem 0 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
footer a { color: var(--text-dim); }

a { color: var(--amber); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* --- admin --- */
.admin-wrap { max-width: 560px; margin: 3rem auto; padding: 0 1.25rem; }
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 1.5rem;
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}
input[type=text], input[type=password], input[type=email], textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.95rem;
  padding: 0.6rem 0.7rem;
  border-radius: 0;
}
textarea { min-height: 6rem; resize: vertical; }
input:focus, textarea:focus { border-color: var(--amber); outline: none; }

button {
  font-family: 'IBM Plex Mono', monospace;
  background: transparent;
  border: 1px solid var(--amber);
  color: var(--amber);
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}
button:hover { background: var(--amber); color: var(--bg); }

.flash { padding: 0.7rem 1rem; margin-bottom: 1rem; font-size: 0.9rem; border: 1px solid; }
.flash-success { border-color: var(--green); color: var(--green); }
.flash-error { border-color: var(--red); color: var(--red); }

.admin-topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.5rem; font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem;
}
.admin-topbar a { color: var(--text-dim); text-decoration: none; }
.admin-topbar a:hover { color: var(--amber); }