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

:root{
  --bg:#0B0F14;
  --panel:#121822;
  --panel-2:#0E141C;
  --line:#1E2733;
  --text:#E6EDF3;
  --text-dim:#7C8B9A;
  --accent:#34D399;
  --accent-dim:#1F5E4B;
  --warn:#F59E0B;
  --danger:#EF4444;
  --safe:65vh;
}

*{ box-sizing:border-box; }

html,body{
  margin:0;
  height:100%;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior:none;
}

button{ font-family:inherit; }

#app{
  height:100dvh;
  width:100vw;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
}

/* ---------- top bar ---------- */
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  background:var(--panel-2);
  border-bottom:1px solid var(--line);
  z-index:5;
}
.brand{
  font-family:'Space Mono',monospace;
  font-weight:700;
  font-size:14px;
  letter-spacing:.14em;
  display:flex;
  align-items:center;
  gap:8px;
}
.brand-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px var(--accent);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:.35;} }
/* icône statique (non animée) : scan en pause / pas encore démarré */
.brand-dot.paused{
  animation:none;
  opacity:1;
  background:var(--text-dim);
  box-shadow:none;
  border-radius:2px;
  transform:scale(.9);
}

.state-pill{
  font-family:'Space Mono',monospace;
  font-size:11px;
  letter-spacing:.08em;
  padding:5px 10px;
  border-radius:3px;
  border:1px solid var(--line);
  color:var(--text-dim);
  background:var(--panel);
  transition:all .25s ease;
}
.state-pill[data-level="scan"]{ color:var(--accent); border-color:var(--accent-dim); }
.state-pill[data-level="vigilance"]{ color:var(--warn); border-color:var(--warn); background:rgba(245,158,11,.08); }
.state-pill[data-level="alerte"]{ color:var(--danger); border-color:var(--danger); background:rgba(239,68,68,.12); animation:blink .5s step-start infinite; }
@keyframes blink{ 50%{ opacity:.45; } }

/* ---------- viewport ---------- */
.viewport{
  position:relative;
  flex:1;
  min-height:0;
  background:#000;
  overflow:hidden;
}
#video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transform:scaleX(-1);
}
#video.rear{ transform:none; }
#overlay{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
}
.scanlines{
  position:absolute; inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(
    to bottom,
    rgba(52,211,153,0) 0px,
    rgba(52,211,153,.02) 1px,
    rgba(52,211,153,0) 2px
  );
  mix-blend-mode:screen;
}

/* mode écran éteint : coupe l'aperçu caméra, ne garde qu'un statut texte */
.viewport.dark-active #video,
.viewport.dark-active #overlay,
.viewport.dark-active .scanlines,
.viewport.dark-active .mini-radar{
  visibility:hidden;
}
.dark-status{
  display:none;
  position:absolute; inset:0;
  z-index:5;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:32px;
  background:#000;
  font-family:'Space Mono',monospace;
  font-size:22px;
  letter-spacing:.08em;
  color:var(--accent);
}
.viewport.dark-active .dark-status{ display:flex; }
.viewport.level-vigilance::after,
.viewport.level-alerte::after{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  transition:box-shadow .2s ease;
}
.viewport.level-vigilance::after{ box-shadow:inset 0 0 60px 10px rgba(245,158,11,.35); }
.viewport.level-alerte::after{ box-shadow:inset 0 0 90px 18px rgba(239,68,68,.5); animation:flash .5s ease-in-out infinite; }
@keyframes flash{ 0%,100%{ opacity:1;} 50%{ opacity:.5; } }

/* ---------- mini radar ---------- */
.mini-radar{
  position:absolute;
  top:14px;
  right:14px;
  width:104px;
  height:104px;
  border-radius:50%;
  background:radial-gradient(circle at center, rgba(18,24,34,.75), rgba(11,15,20,.9));
  border:1px solid var(--line);
  z-index:4;
  overflow:hidden;
}
.mini-radar svg{ width:100%; height:100%; display:block; }
.mini-sweep{
  transform-origin:52px 52px;
  animation:sweep 3s linear infinite;
}
@keyframes sweep{ from{ transform:rotate(-40deg);} to{ transform:rotate(320deg);} }
.mini-blip{
  transition:cx .15s linear, cy .15s linear, opacity .2s ease;
}

/* ---------- permission gate ---------- */
.gate{
  position:absolute; inset:0;
  z-index:6;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  padding:32px;
  text-align:center;
  background:var(--bg);
}
.gate.hidden{ display:none; }
.gate-radar{ width:120px; height:120px; opacity:.9; }
.gate h1{
  font-family:'Space Mono',monospace;
  font-size:18px;
  letter-spacing:.06em;
  margin:0;
}
.gate p{
  color:var(--text-dim);
  font-size:14px;
  line-height:1.6;
  max-width:320px;
  margin:0;
}
.primary-btn{
  background:var(--accent);
  color:#06251C;
  border:none;
  font-weight:600;
  font-size:15px;
  padding:13px 26px;
  border-radius:6px;
  cursor:pointer;
}
.primary-btn:active{ transform:scale(.97); }
.gate-error{ color:var(--danger); font-size:13px; max-width:320px; }

/* ---------- HUD footer ---------- */
.hud{
  display:flex;
  align-items:stretch;
  background:var(--panel-2);
  border-top:1px solid var(--line);
  z-index:5;
}
.metric{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:10px 4px;
  border-right:1px solid var(--line);
}
.metric-label{
  font-size:10px;
  letter-spacing:.1em;
  color:var(--text-dim);
  text-transform:uppercase;
}
.metric-value{
  font-family:'Space Mono',monospace;
  font-size:16px;
  margin-top:3px;
}
.icon-btn{
  width:52px;
  background:transparent;
  border:none;
  border-right:1px solid var(--line);
  color:var(--text-dim);
  font-size:18px;
  cursor:pointer;
}
.icon-btn:last-child{ border-right:none; }
.icon-btn.active{ color:var(--accent); }
.icon-btn.muted{ color:var(--text-dim); text-decoration:line-through; }

/* ---------- settings drawer ---------- */
.settings-drawer{
  position:absolute;
  left:0; right:0; bottom:0;
  background:var(--panel);
  border-top:1px solid var(--line);
  padding:20px 20px 28px;
  transform:translateY(100%);
  transition:transform .25s ease;
  z-index:8;
}
.settings-drawer.open{ transform:translateY(0); }
.settings-drawer h2{
  font-family:'Space Mono',monospace;
  font-size:14px;
  letter-spacing:.08em;
  margin:0 0 16px;
}
.settings-drawer label{
  display:block;
  font-size:13px;
  color:var(--text-dim);
  margin-bottom:18px;
}
.toggle-row{
  display:flex !important;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.toggle-switch{
  position:relative;
  display:inline-block;
  width:42px;
  height:24px;
  flex-shrink:0;
}
.toggle-switch input{
  position:absolute;
  opacity:0;
  width:100%;
  height:100%;
  margin:0;
  cursor:pointer;
  z-index:1;
}
.toggle-track{
  position:absolute;
  inset:0;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:12px;
  transition:background .15s ease;
}
.toggle-track::before{
  content:"";
  position:absolute;
  top:2px;
  left:2px;
  width:18px;
  height:18px;
  border-radius:50%;
  background:var(--text-dim);
  transition:transform .15s ease, background .15s ease;
}
.toggle-switch input:checked + .toggle-track{
  background:var(--accent-dim);
  border-color:var(--accent);
}
.toggle-switch input:checked + .toggle-track::before{
  transform:translateX(18px);
  background:var(--accent);
}
.toggle-switch input:disabled + .toggle-track{
  opacity:.4;
}
.help-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:16px;
  height:16px;
  margin-left:6px;
  border-radius:50%;
  border:1px solid var(--text-dim);
  background:transparent;
  color:var(--text-dim);
  font-size:11px;
  line-height:1;
  vertical-align:middle;
  cursor:pointer;
  padding:0;
}
.help-icon i{ font-style:italic; }
.help-icon:active{ background:var(--line); }

.help-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:20;
  padding:24px;
}
.help-overlay.open{ display:flex; }
.help-modal{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:8px;
  padding:20px;
  max-width:360px;
  width:100%;
}
.help-modal h3{
  font-family:'Space Mono',monospace;
  font-size:14px;
  letter-spacing:.06em;
  margin:0 0 12px;
}
.help-modal p{
  font-size:13px;
  color:var(--text-dim);
  line-height:1.6;
  margin:0 0 16px;
}
.settings-drawer input[type="range"]{
  width:100%;
  margin-top:8px;
  accent-color:var(--accent);
}
.settings-drawer select{
  display:block;
  width:100%;
  margin-top:8px;
  padding:9px 10px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  font-size:13px;
}
.row-value{
  font-family:'Space Mono',monospace;
  color:var(--text);
  float:right;
}
.settings-drawer .primary-btn{
  width:100%;
  background:var(--panel-2);
  color:var(--text);
  border:1px solid var(--line);
}
.settings-note{
  font-size:11px;
  color:var(--text-dim);
  line-height:1.6;
  margin-top:4px;
}

@media (min-width:640px){
  #app{ max-width:480px; margin:0 auto; border-left:1px solid var(--line); border-right:1px solid var(--line); }
}