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

:root {
  --board: #0e211a;
  --board-panel: #14301f;
  --board-panel-2: #1b3d27;
  --copper: #c9873f;
  --copper-bright: #e2a862;
  --led: #ffb020;
  --led-dim: #7a5518;
  --text: #eaf3ec;
  --text-muted: #9fb8a9;
  --line: #2a4a35;
  --danger: #e2685a;
  --radius: 4px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--board);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
}

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

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

/* ---------- header ---------- */
.topbar {
  border-bottom: 1px solid var(--line);
  padding: 28px 0 20px;
  margin-bottom: 8px;
}

.topbar .eyebrow {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper-bright);
}

.topbar h1 {
  font-family: 'Space Mono', monospace;
  font-size: 28px;
  margin: 6px 0 4px;
  color: var(--text);
}

.topbar .sub {
  color: var(--text-muted);
  font-size: 14px;
}

/* breadboard rail divider - signature element */
.rail {
  height: 14px;
  margin: 22px 0;
  background-image: repeating-linear-gradient(
    to right,
    var(--copper) 0px, var(--copper) 3px,
    transparent 3px, transparent 16px
  );
  background-position: center;
  background-repeat: repeat-x;
  background-size: 16px 3px;
  opacity: 0.55;
}

/* ---------- week groups ---------- */
.week-block { margin-bottom: 36px; }

.week-title {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--led);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.week-title::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--led);
  box-shadow: 0 0 6px 1px var(--led-dim);
  flex-shrink: 0;
}

.cards { display: grid; gap: 12px; }

.card {
  background: var(--board-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: relative;
}

.card::before, .card::after {
  content: '';
  position: absolute;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--board);
  border: 1px solid var(--line);
}
.card::before { left: 8px; }
.card::after { right: 8px; }

.card .meta { min-width: 0; }

.card .title {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  word-break: break-word;
}

.card .desc {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 3px;
}

.card .tag {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 3px;
  margin-right: 8px;
  border: 1px solid var(--line);
  color: var(--copper-bright);
}

.card .tag.pdf { color: #e2685a; border-color: #4a2a26; }
.card .tag.code { color: var(--led); border-color: var(--led-dim); }
.card .tag.zip { color: #8ab4f8; border-color: #223a55; }

.btn {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--board);
  background: var(--led);
  padding: 9px 14px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn:hover { background: var(--copper-bright); }

.btn.secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--line);
}

.btn.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid #4a2a26;
}

.empty {
  color: var(--text-muted);
  font-size: 14px;
  padding: 40px 0;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

/* ---------- forms (admin) ---------- */
.panel {
  background: var(--board-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 30px;
}

.panel h2 {
  font-family: 'Space Mono', monospace;
  font-size: 15px;
  margin-top: 0;
  color: var(--led);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin: 14px 0 6px;
  font-family: 'Space Mono', monospace;
  letter-spacing: 0.03em;
}

input[type="text"], input[type="password"], textarea, input[type="file"] {
  width: 100%;
  background: var(--board);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
}

textarea { min-height: 70px; resize: vertical; }

.row { display: flex; gap: 14px; }
.row > div { flex: 1; }

.msg {
  background: var(--board-panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--led);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 20px;
  color: var(--text);
}

.login-box {
  max-width: 340px;
  margin: 90px auto;
  background: var(--board-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.login-box h1 {
  font-family: 'Space Mono', monospace;
  font-size: 18px;
  margin-top: 0;
}

.error { color: var(--danger); font-size: 13px; margin-top: 8px; }

.footer-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 40px;
}

.admin-link {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  text-decoration: none;
}

@media (max-width: 560px) {
  .card { flex-direction: column; align-items: flex-start; }
  .row { flex-direction: column; }
}