:root {
  --bg: #F0EDE8;
  --panel: #E8E4DE;
  --surface: #FFFFFF;
  --stroke: #D0CBC2;
  --stroke-strong: #1A1714;
  --text-primary: #1A1714;
  --text-muted: #7A7470;
  --accent: #E8500A;
  --inactive: #B0ABA6;
  --screen: #1A1714;
  --screen-text: #F0EDE8;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0;
}

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text-primary);
  font-family: 'DM Mono', monospace;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  padding: 40px;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}

/* Registration corners */
.corner {
  position: fixed;
  width: 20px;
  height: 20px;
  border-color: var(--stroke-strong);
  border-style: solid;
  z-index: 10;
  pointer-events: none;
}
.corner-tl { top: 12px; left: 12px; border-width: 1px 0 0 1px; }
.corner-tr { top: 12px; right: 12px; border-width: 1px 1px 0 0; }
.corner-bl { bottom: 12px; left: 12px; border-width: 0 0 1px 1px; }
.corner-br { bottom: 12px; right: 12px; border-width: 0 1px 1px 0; }

/* ==================== HEADER ==================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--stroke-strong);
  margin-bottom: 0;
}

.header-left { display: flex; flex-direction: column; gap: 6px; }

.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  font-size: 18px;
  color: var(--accent);
  line-height: 1;
}
.logo-text {
  font-size: 16px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.tagline {
  font-size: 9px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-end;
}

.meta-row {
  display: flex;
  gap: 10px;
  font-size: 9px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.meta-k { color: var(--text-muted); }
.meta-v { color: var(--text-primary); min-width: 110px; text-align: right; }

/* ==================== SYSTEM BAR ==================== */
.system-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 0;
  border-bottom: 1px solid var(--stroke);
  margin-bottom: 24px;
}

.system-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.led {
  width: 6px;
  height: 6px;
  background: var(--inactive);
  border-radius: 50% !important;
  display: inline-block;
}
.led-on { background: var(--accent); box-shadow: 0 0 4px var(--accent); }
.led-blink { background: var(--accent); animation: blink 1.4s infinite; }

@keyframes blink {
  0%, 60% { opacity: 1; }
  61%, 100% { opacity: 0.2; }
}

.system-label {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.system-spacer {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(to right, var(--stroke) 0 4px, transparent 4px 8px);
}

.system-text {
  font-size: 9px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ==================== GRID ==================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* ==================== CARD ==================== */
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--stroke-strong);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
}

.card-live {
  cursor: pointer;
}

.card-live:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--stroke-strong);
}

.card-live:hover .card-arrow { color: var(--accent); }

.card-standby {
  background: var(--panel);
  cursor: default;
  pointer-events: none;
  opacity: 0.75;
}

/* Card top strip — like an OP-1 header label strip */
.card-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
  background: var(--stroke-strong);
  color: var(--bg);
}

.card-idx {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.card-status {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50% !important;
  display: inline-block;
}

.card-status-off .status-dot {
  background: var(--inactive);
}

/* Card screen — the "display" area of a hardware module */
.card-screen {
  background: var(--screen);
  color: var(--screen-text);
  padding: 18px 16px 20px;
  border-bottom: 1px solid var(--stroke-strong);
  position: relative;
}

.screen-label {
  font-size: 8px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.card-title {
  font-size: 32px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.card-subtitle {
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--screen-text);
  opacity: 0.7;
}

/* Card spec — technical data table */
.card-spec {
  padding: 12px 16px;
  border-bottom: 1px solid var(--stroke);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.spec-k { color: var(--text-muted); }
.spec-v { color: var(--text-primary); font-weight: 500; }

/* Card description */
.card-desc {
  padding: 12px 16px 16px;
  font-size: 11px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
  flex: 1;
}

/* Card footer action */
.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-top: 1px solid var(--stroke-strong);
  background: var(--bg);
}

.card-action {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.card-standby .card-action { color: var(--text-muted); }

.card-arrow {
  font-size: 14px;
  color: var(--text-primary);
  transition: color 0.15s;
}

.card-standby .card-arrow { color: var(--inactive); }

/* ==================== FOOTER ==================== */
.footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--stroke-strong);
}

.footer-ticks {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}

.tick {
  width: 1px;
  height: 6px;
  background: var(--stroke);
  display: inline-block;
}

.tick-major {
  height: 10px;
  background: var(--stroke-strong);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-text {
  font-size: 9px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.footer-text-muted { color: var(--text-muted); }