:root {
  --bg: #07040d;
  --bg-panel: #100a1e;
  --bg-panel-raised: #170f29;
  --violet-900: #1b0f33;
  --violet-700: #3d1f6b;
  --violet-500: #6d28d9;
  --purple-glow: #a855f7;
  --pink-accent: #ec4899;
  --text-primary: #f3eeff;
  --text-dim: #9a8fc2;
  --text-faint: #5f5581;
  --success: #34d399;
  --danger: #f43f5e;
  --border: rgba(168, 85, 247, 0.18);
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(ellipse at top, var(--violet-900) 0%, var(--bg) 55%);
  color: var(--text-primary);
  font-family: var(--font-mono);
  min-height: 100vh;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(168, 85, 247, 0.02) 0px,
    rgba(168, 85, 247, 0.02) 1px,
    transparent 1px,
    transparent 3px
  );
  z-index: 1;
}

/* ---------- Topbar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  font-size: 28px;
  color: var(--pink-accent);
  text-shadow: 0 0 16px rgba(236, 72, 153, 0.6);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.3; }

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.12em;
  background: linear-gradient(90deg, var(--purple-glow), var(--pink-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}

.conn-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.conn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-faint);
}

.conn-status[data-state="live"] .conn-dot {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 1.8s ease-in-out infinite;
}

.conn-status[data-state="down"] .conn-dot {
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- Layout ---------- */

.layout {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 32px 64px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.stat-tile {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-value .unit {
  font-size: 14px;
  color: var(--text-dim);
  margin-left: 2px;
}

.main-grid {
  display: grid;
  grid-template-columns: 480px 1fr;
  gap: 20px;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple-glow);
  margin: 0 0 14px;
}

.panel-note {
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--text-faint);
  line-height: 1.5;
}

/* ---------- Radar signature element ---------- */

.radar-wrap {
  display: flex;
  justify-content: center;
}

#radarCanvas {
  background: radial-gradient(circle, rgba(109, 40, 217, 0.12) 0%, rgba(7, 4, 13, 0.4) 70%);
  border-radius: 50%;
  border: 1px solid var(--border);
}

.radar-caption {
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--text-faint);
  text-align: center;
}

/* ---------- Feed ---------- */

.feed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 480px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feed-empty, .history-empty {
  color: var(--text-faint);
  font-size: 13px;
  padding: 12px 0;
}

.feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--bg-panel-raised);
  border-left: 3px solid var(--pink-accent);
  animation: feedIn 0.35s ease-out;
  font-size: 13px;
}

@keyframes feedIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.feed-item time {
  color: var(--text-dim);
  font-size: 11px;
}

.feed-item .feed-device {
  color: var(--purple-glow);
  font-weight: 500;
}

.btn-action {
  background: linear-gradient(180deg, rgba(236, 72, 153, 0.95), rgba(190, 24, 93, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.btn-action:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.btn-action:focus-visible {
  outline: 2px solid var(--pink-accent);
  outline-offset: 2px;
}

.operator-console {
  margin-top: 18px;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid rgba(168, 85, 247, 0.2);
  background:
    linear-gradient(180deg, rgba(23, 15, 41, 0.95), rgba(16, 10, 30, 0.95)),
    radial-gradient(circle at top right, rgba(236, 72, 153, 0.12), transparent 40%);
}

.operator-header,
.operator-fire,
.operator-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.operator-header {
  margin-bottom: 14px;
}

.operator-label {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.operator-subtitle,
.fire-note {
  font-size: 11px;
  color: var(--text-faint);
}

.operator-target {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--text-dim);
}

.operator-target label {
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 11px;
}

.operator-target select {
  width: 100%;
}

.btn-lock,
.btn-fire {
  border: 0;
  border-radius: 8px;
  padding: 10px 18px;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.btn-lock {
  background: rgba(52, 211, 153, 0.12);
  color: var(--success);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.btn-lock.is-active {
  background: linear-gradient(180deg, rgba(52, 211, 153, 0.95), rgba(16, 185, 129, 0.95));
  color: #081118;
}

.btn-fire {
  background: linear-gradient(180deg, rgba(244, 63, 94, 0.95), rgba(190, 18, 60, 0.95));
  color: #fff;
  min-width: 120px;
}

.manual-control {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.manual-grid {
  display: grid;
  grid-template-columns: repeat(3, 44px);
  grid-template-rows: repeat(3, 44px);
  gap: 8px;
  align-items: center;
  justify-content: center;
}

.btn-manual {
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
}

.btn-manual:hover {
  border-color: rgba(236, 72, 153, 0.65);
  color: var(--pink-accent);
}

.btn-manual:nth-child(1) { grid-column: 2; grid-row: 1; }
.btn-manual:nth-child(2) { grid-column: 1; grid-row: 2; }
.btn-manual:nth-child(3) { grid-column: 3; grid-row: 2; }
.btn-manual:nth-child(4) { grid-column: 2; grid-row: 3; }

.operator-footer {
  margin-top: 16px;
  flex-wrap: wrap;
  justify-content: flex-start;
  font-size: 11px;
  color: var(--text-dim);
}

/* ---------- History ---------- */

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}

.history-filters {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-dim);
}

.history-filters label {
  display: flex;
  align-items: center;
  gap: 6px;
}

select {
  background: var(--bg-panel-raised);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--purple-glow);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.btn-ghost:hover {
  border-color: var(--purple-glow);
  color: var(--pink-accent);
}

.btn-ghost:focus-visible, select:focus-visible, .conn-status:focus-visible {
  outline: 2px solid var(--pink-accent);
  outline-offset: 2px;
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.history-table th {
  text-align: left;
  padding: 10px 12px;
  color: var(--text-dim);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}

.history-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.08);
  color: var(--text-primary);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-dim);
}

@media (max-width: 900px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .main-grid { grid-template-columns: 1fr; }
  #radarCanvas { width: 100%; height: auto; }
}