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

[hidden] { display: none !important; }

:root {
  --bg: #0f1115;
  --surface: #1a1d24;
  --surface-2: #232733;
  --text: #e8eaf0;
  --text-dim: #9aa1b0;
  --accent: #4f7cff;
  --accent-hover: #3b66e8;
  --danger: #e5484d;
  --warn: #f0b429;
  --ok: #3ecf8e;
  --bar: #171a21;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

.screen { height: 100%; display: flex; flex-direction: column; }

/* --- Accueil --- */
#home { align-items: center; justify-content: center; padding: 16px; }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card h1 { font-size: 28px; }
.subtitle { color: var(--text-dim); font-size: 14px; margin-bottom: 8px; }

label { font-size: 13px; color: var(--text-dim); }

input {
  background: var(--surface-2);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 15px;
  width: 100%;
}
input:focus { outline: none; border-color: var(--accent); }

button {
  background: var(--surface-2);
  border: none;
  border-radius: 8px;
  color: var(--text);
  padding: 10px 16px;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s;
}
button:hover { background: #2c3140; }
button.primary { background: var(--accent); }
button.primary:hover { background: var(--accent-hover); }

/* Regroupé pour pouvoir disparaître d'un bloc quand on arrive par un lien
   d'invitation ; reprend le rythme vertical de la carte. */
#create-block { display: flex; flex-direction: column; gap: 12px; }

/* Mode invitation : « Rejoindre » passe sur toute la largeur pour devenir
   l'action évidente de la carte. */
#home.invited .join-row { flex-direction: column; }
#home.invited #join-btn { width: 100%; padding: 12px; font-size: 16px; }
.join-row { display: flex; gap: 8px; }
.join-row input { flex: 1; text-transform: uppercase; }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-dim);
  font-size: 13px;
  margin: 4px 0;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--surface-2);
}

.error { color: var(--danger); font-size: 14px; }

/* --- Room --- */
.room-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
}
.room-info { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.room-code { font-weight: 700; font-size: 18px; letter-spacing: 2px; }
#copy-link-btn, #lock-btn { font-size: 13px; padding: 6px 12px; }
#lock-btn.locked { background: var(--danger); }
#join-pass-row input { width: 100%; }
#peer-count { color: var(--text-dim); font-size: 14px; }

.video-grid {
  flex: 1;
  display: grid;
  gap: 8px;
  padding: 8px;
  min-height: 0;
  grid-template-columns: 1fr;
}
.video-grid[data-count="2"] { grid-template-columns: 1fr 1fr; }
.video-grid[data-count="3"],
.video-grid[data-count="4"] { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }

@media (max-width: 600px) {
  .video-grid[data-count="2"] { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
}

.tile {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 0;
}
.tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tile.connecting::after {
  content: "Connexion…";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  background: var(--surface);
}
/* À deux : l'interlocuteur occupe tout l'espace, le retour local passe en
   vignette flottante. Ces règles doivent suivre celles de [data-count] :
   à spécificité égale, c'est la dernière qui l'emporte. */
.video-grid.pip {
  position: relative;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
.video-grid.pip .tile.local {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 28%;
  min-width: 96px;
  max-width: 190px;
  aspect-ratio: 3 / 4;
  z-index: 3;
  border: 2px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.55);
}

/* Le retour local est reflété comme un miroir, sauf en caméra arrière. */
.tile.local.mirror video { transform: scaleX(-1); }

.tile.unreachable::after {
  content: "Connexion impossible — réseau bloqué";
  color: var(--danger);
  background: var(--surface);
}
.tile.no-media::after {
  content: "Pas de caméra";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
}
.tile-name {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.55);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 13px;
  z-index: 1;
}

/* --- Contrôles --- */
.controls {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 22px;
  padding: 12px 22px 16px;
  background: var(--bar);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.zone-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: #5d6577;
  margin-bottom: 9px;
}
.zone-items { display: flex; gap: 10px; }

/* Les outils de l'hôte sont cadrés : ils n'agissent pas sur sa propre
   caméra mais sur la visite, la distinction doit être visible. */
.zone-tools {
  background: #1e222b;
  border: 1px solid rgba(79, 124, 255, 0.22);
  border-radius: 16px;
  padding: 9px 16px 11px;
}
.zone-tools .zone-title { color: #7d8bb0; }
.zone-leave { margin-left: auto; }

.control {
  background: transparent;
  border: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-family: inherit;
}
.control .disc {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  transition: background 0.15s, transform 0.1s;
}
.control:hover .disc { background: rgba(255, 255, 255, 0.16); }
.control:active .disc { transform: scale(0.94); }
.control:focus-visible .disc { outline: 2px solid var(--accent); outline-offset: 2px; }
.control .lbl { font-size: 11.5px; letter-spacing: 0.2px; color: var(--text-dim); }
.control:disabled { opacity: 0.45; cursor: default; }
.control:disabled:hover .disc { background: rgba(255, 255, 255, 0.08); }

.ico {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block;
}

/* État coupé : la barre oblique porte le sens à elle seule. La couleur
   seule serait illisible en plein soleil ou pour un daltonien. */
.ico .slash, .ico .cut { display: none; }
.control.off .ico .slash, .control.off .ico .cut { display: block; }
.ico .cut { stroke: var(--danger); stroke-width: 4.5; }
.control.off .disc { background: var(--danger); color: #fff; }
.control.off:hover .disc { background: #d13c41; }
.control.off .lbl { color: #e5848a; }

#torch-btn.on .disc { background: var(--warn); color: #241a03; }
#torch-btn.on:hover .disc { background: #dda317; }
#torch-btn.on .lbl { color: var(--warn); }

#geo-btn.on .disc {
  background: rgba(62, 207, 142, 0.2);
  color: var(--ok);
  box-shadow: inset 0 0 0 1px rgba(62, 207, 142, 0.45);
}
#geo-btn.on .lbl { color: var(--ok); }

/* Raccrocher : plus large que les autres et détaché, pour que la seule
   action irréversible ne se touche pas par mégarde. */
.control.danger .disc { width: 76px; background: var(--danger); color: #fff; }
.control.danger:hover .disc { background: #c93a3f; }
.control.danger .lbl { color: #e5848a; }

@media (max-width: 620px) {
  .controls { gap: 10px 8px; padding: 10px 12px 14px; justify-content: space-between; }
  .zone-title { display: none; }
  .zone-items { gap: 7px; }
  /* Raccrocher garde sa place sur la première rangée, à droite. Renvoyé seul
     à la ligne, il se retrouverait centré en bas — pile sous le pouce, pour
     la seule action irréversible de l'écran. Ce sont les outils qui passent
     dessous. */
  .zone-leave { order: 1; margin-left: 0; }
  .zone-tools {
    order: 2;
    flex-basis: 100%;
    padding: 0;
    background: transparent;
    border: 0;
  }
  .zone-tools .zone-items { justify-content: center; }
  .control .disc { width: 46px; height: 46px; border-radius: 13px; }
  .control.danger .disc { width: 62px; }
  .control .lbl { font-size: 10.5px; }
  .ico { width: 21px; height: 21px; }
}

}

/* --- Boîte de consentement --- */
.ask {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.65);
}
.ask-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 22px;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ask-box p { font-size: 16px; line-height: 1.45; }
.ask-note { font-size: 13px; color: var(--text-dim); }
.ask-actions { display: flex; gap: 10px; justify-content: flex-end; }
.ask-actions button { padding: 10px 18px; }

/* --- Outil de mesure --- */
.measure {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: #000;
  display: flex;
  flex-direction: column;
}
.measure-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#measure-canvas {
  max-width: 100%;
  max-height: 100%;
  /* Le doigt sert à placer des points, pas à faire défiler la page. */
  touch-action: none;
  cursor: crosshair;
}
.measure-panel {
  background: var(--surface);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 52vh;
  overflow-y: auto;
}
.measure-hint { font-size: 15px; font-weight: 600; }
.measure-ref { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.measure-ref label { flex: 1; }
.measure-ref input { width: 90px; padding: 6px 8px; }
.measure-tools { display: flex; flex-wrap: wrap; gap: 8px; }
.measure-tools button { font-size: 14px; padding: 9px 14px; }
.measure-tools button.active { background: var(--accent); }
.measure-tools button.danger { background: var(--danger); }
.measure-warning {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.45;
  border-left: 2px solid var(--accent);
  padding-left: 10px;
}
.measure-shots { display: flex; gap: 8px; overflow-x: auto; }
.measure-shots .shot { flex: 0 0 auto; }
.measure-shots img {
  height: 62px;
  border-radius: 6px;
  display: block;
  border: 1px solid var(--surface-2);
}

/* --- Toast --- */
#toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-2);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  z-index: 10;
}