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

:root {
  --bg:         #080c14;
  --surface:    #0d1525;
  --surface2:   #111d30;
  --border:     rgba(100,140,200,0.12);
  --border2:    rgba(100,140,200,0.22);
  --text:       #c8d8f0;
  --muted:      #5a7099;
  --accent:     #4fc3f7;

  --green:      #00e5a0;
  --green-dim:  rgba(0,229,160,0.1);
  --yellow:     #ffcc44;
  --yellow-dim: rgba(255,204,68,0.1);
  --red:        #ff4d6a;
  --red-dim:    rgba(255,77,106,0.12);
}

html, body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* Scanline effect */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 0;
}

/* ── APP WRAPPER ── */
.app {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

/* ── HEADER ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border2);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 16px;
}

.header-title {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

.header-sub {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

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

.flight-info {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.flight-info span {
  color: var(--text);
}

/* ── GRID ── */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.full {
  grid-column: 1 / -1;
}

/* ── PANEL ── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.panel:hover {
  border-color: var(--border2);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.panel-label {
  font-family: 'Syne', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.panel-body {
  padding: 16px;
}

/* ── CHIP / BADGE ── */
.chip {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid;
  transition: all 0.3s;
}

.chip.green  { color: var(--green);  border-color: rgba(0,229,160,0.3);  background: var(--green-dim); }
.chip.yellow { color: var(--yellow); border-color: rgba(255,204,68,0.3); background: var(--yellow-dim); }
.chip.red    { color: var(--red);    border-color: rgba(255,77,106,0.3); background: var(--red-dim); }

.intensity-badge {
  font-size: 11px;
  color: var(--muted);
}

/* ── MODE DISPLAY ── */
.mode-display {
  font-family: 'Syne', sans-serif;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1;
  margin-bottom: 16px;
  transition: color 0.3s;
}

.mode-display.green  { color: var(--green); }
.mode-display.yellow { color: var(--yellow); }
.mode-display.red    { color: var(--red); animation: text-blink 0.9s infinite; }

@keyframes text-blink {
  50% { opacity: 0.35; }
}

/* ── MODE BUTTONS ── */
.mode-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mode-btn {
  padding: 8px 14px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.18s;
}

.mode-btn:hover  { color: var(--text); border-color: rgba(100,140,200,0.4); }
.mode-btn:active { transform: scale(0.96); }

.mode-btn.active-day {
  color: var(--green);
  border-color: rgba(0,229,160,0.4);
  background: var(--green-dim);
}

.mode-btn.active-night,
.mode-btn.active-sleep {
  color: var(--yellow);
  border-color: rgba(255,204,68,0.4);
  background: var(--yellow-dim);
}

.mode-btn.emergency {
  color: var(--red);
  border-color: rgba(255,77,106,0.3);
}

.mode-btn.emergency:hover,
.mode-btn.active-emergency {
  background: var(--red-dim);
  border-color: rgba(255,77,106,0.5);
  color: var(--red);
}

/* ── SENSOR ROWS ── */
.sensor-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}

.sensor-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sensor-icon {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: var(--surface2);
  display: grid;
  place-items: center;
  font-size: 13px;
  flex-shrink: 0;
}

.sensor-name {
  flex: 1;
  color: var(--muted);
  font-size: 12px;
}

.sensor-val {
  font-size: 12px;
  font-weight: 500;
  transition: color 0.3s;
}

.sensor-val.ok    { color: var(--green); }
.sensor-val.warn  { color: var(--yellow); }
.sensor-val.alert { color: var(--red); }
.sensor-val.dim   { color: var(--muted); }

/* ── LIGHT PREVIEW ── */
.light-preview {
  width: 100%;
  height: 64px;
  border-radius: 8px;
  border: 1px solid var(--border2);
  margin-bottom: 14px;
  transition: background 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.light-preview::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, transparent 60%);
}

/* ── SLIDER ── */
.slider-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.slider-icon {
  font-size: 12px;
  color: var(--muted);
}

input[type=range] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  border-radius: 2px;
  background: var(--border2);
  outline: none;
  cursor: pointer;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(79,195,247,0.5);
  border: 2px solid var(--bg);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

input[type=range]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 16px rgba(79,195,247,0.7);
}

input[type=range]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
}

.slider-val {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  min-width: 34px;
  text-align: right;
}

/* ── PRESETS ── */
.presets {
  display: flex;
  gap: 8px;
}

.preset-btn {
  flex: 1;
  padding: 7px 0;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}

.preset-btn:hover  { border-color: var(--border2); color: var(--text); }
.preset-btn:active { transform: scale(0.97); }

/* ── ALERT BAR ── */
.alert-bar {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid;
  transition: all 0.3s;
}

.alert-bar.ok     { background: var(--green-dim);  border-color: rgba(0,229,160,0.2); }
.alert-bar.warn   { background: var(--yellow-dim); border-color: rgba(255,204,68,0.2); }
.alert-bar.danger { background: var(--red-dim);    border-color: rgba(255,77,106,0.3); animation: border-pulse 1s infinite; }

@keyframes border-pulse {
  50% {
    border-color: rgba(255,77,106,0.7);
    box-shadow: 0 0 20px rgba(255,77,106,0.15);
  }
}

.alert-icon {
  font-size: 20px;
  line-height: 1;
  padding-top: 1px;
}

.alert-title {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 700;
}

.alert-title.ok     { color: var(--green); }
.alert-title.warn   { color: var(--yellow); }
.alert-title.danger { color: var(--red); }

.alert-sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
}

/* ── TIMESTAMP ── */
.ts {
  font-size: 10px;
  color: var(--muted);
  text-align: right;
  margin-top: 8px;
  letter-spacing: 0.05em;
}