:root {
  --bg: #05080d;
  --panel: rgba(7, 18, 28, 0.88);
  --panel-strong: rgba(6, 13, 22, 0.96);
  --text: #d7f6ff;
  --muted: #7fb9c8;
  --border: rgba(53, 174, 204, 0.35);
  --border-strong: rgba(90, 224, 255, 0.55);
  --accent: #59dfff;
  --accent-soft: rgba(89, 223, 255, 0.12);
  --green: #62ffb0;
  --warning: #ffd166;
  --danger: #ff6b6b;
  --shadow: 0 0 24px rgba(0, 225, 255, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(16, 76, 92, 0.25), transparent 35%),
    linear-gradient(180deg, #071018 0%, #02050a 100%);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
}

body {
  overflow: hidden;
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.02),
    rgba(255,255,255,0.02) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.12;
}

.app-shell {
  position: relative;
  z-index: 1;
  padding: 16px;
  height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(10, 24, 37, 0.94), rgba(6, 16, 25, 0.92));
  box-shadow: var(--shadow);
}

.eyebrow,
.mini-label,
.panel-title {
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow,
.mini-label {
  color: var(--muted);
  font-size: 11px;
}

h1 {
  margin: 4px 0 0;
  font-size: 28px;
  letter-spacing: 0.08em;
}

.topbar-right {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  min-width: 118px;
  text-align: center;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(14, 30, 46, 0.9);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
  font-weight: 700;
  color: var(--accent);
}

.badge-green {
  color: var(--green);
}

.hud-grid {
  display: grid;
  grid-template-columns: 390px 1fr;
  gap: 14px;
  height: calc(100vh - 110px);
}

.panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(7, 18, 28, 0.95), rgba(3, 10, 16, 0.94));
  box-shadow: var(--shadow);
}

.sidebar {
  padding: 18px;
  overflow: auto;
}

.main-stack {
  display: grid;
  grid-template-rows: 160px 1fr;
  gap: 14px;
  min-height: 0;
}

.metrics-panel,
.terminal-panel {
  padding: 16px;
  min-height: 0;
}

.panel-title {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.metric-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: linear-gradient(180deg, rgba(11, 31, 46, 0.8), rgba(6, 15, 23, 0.85));
}

.metric-value {
  margin-top: 10px;
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
}

label {
  display: block;
  margin: 12px 0 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input, textarea, select, button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(10, 23, 35, 0.92);
  color: var(--text);
  padding: 11px 12px;
  font-size: 14px;
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

button {
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

button:hover {
  border-color: var(--border-strong);
  background: rgba(13, 35, 49, 0.95);
}

.row {
  display: flex;
  gap: 8px;
}

.row.wrap {
  flex-wrap: wrap;
}

.row.split > div {
  flex: 1;
}

.status-box {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: rgba(8, 20, 31, 0.75);
}

.status {
  margin-top: 8px;
  color: var(--green);
  font-weight: 700;
  min-height: 20px;
}

.terminal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.terminal-leds {
  display: flex;
  gap: 8px;
}

.led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--warning);
  box-shadow: 0 0 10px rgba(255, 209, 102, 0.45);
}

.led-green {
  background: var(--green);
  box-shadow: 0 0 10px rgba(98, 255, 176, 0.45);
}

#terminal {
  width: 100%;
  height: calc(100% - 40px);
  min-height: 300px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(2, 7, 12, 0.95);
}

@media (max-width: 1100px) {
  body {
    overflow: auto;
  }

  .hud-grid {
    grid-template-columns: 1fr;
    height: auto;
  }

  .main-stack {
    grid-template-rows: auto auto;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  #terminal {
    height: 65vh;
  }
}

@media (max-width: 640px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
  }

  h1 {
    font-size: 22px;
  }
}