:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --primary: #3a5a7c;       /* bleu acier Helviqo */
  --primary-dark: #030510;  /* fond du logo Helviqo, pour un raccord parfait */
  --accent: #2e9e63;
  --danger: #d0202c;        /* rouge de la croix suisse du logo */
  --warn: #e08e0b;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e2e5e9;
  /* Couleurs du client courant (tenant), en plus de l'identité Helviqo -
     surchargées en JS depuis /api/tenant quand le client a fourni les
     siennes (voir nav.js). Par défaut, identiques à Helviqo pour qu'un
     futur client sans branding fourni ait un rendu cohérent. */
  --tenant-primary: var(--primary);
  --tenant-accent: var(--accent);
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 70px; /* place pour la barre de nav mobile */
}

a { color: var(--primary); text-decoration: none; }

/* ---------- Barre du haut ---------- */
header.topbar {
  background: var(--primary-dark);
  color: white;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 20;
}
header.topbar .brand { font-weight: 700; font-size: 1.2rem; letter-spacing: 0.5px; display: flex; align-items: center; gap: 9px; }
header.topbar .brand img.logo { height: 28px; width: 28px; border-radius: 6px; display: block; }
header.topbar .brand small { display:block; font-size: 0.65rem; font-weight: 400; opacity: 0.75; }
/* Logo du client (tenant), affiché EN PLUS du logo Helviqo, jamais à sa place -
   sur un petit fond blanc pour rester lisible quel que soit son logo. */
header.topbar .brand .client-chip {
  display: flex; align-items: center; height: 26px; padding: 3px 8px;
  background: #ffffff; border-radius: 6px; margin-left: 4px;
}
header.topbar .brand .client-chip img { height: 100%; width: auto; display: block; }
header.topbar .brand .sep { opacity: 0.4; font-weight: 400; }
header.topbar .user-info { font-size: 0.85rem; text-align: right; opacity: 0.9; }
header.topbar .user-info button {
  margin-top: 4px; background: rgba(255,255,255,0.15); color: white; border: none;
  padding: 4px 10px; border-radius: 6px; font-size: 0.75rem; cursor: pointer;
}

/* ---------- Navigation (desktop = onglets horizontaux, mobile = barre basse) ---------- */
nav.tabs {
  display: flex;
  gap: 6px;
  background: var(--primary);
  padding: 6px 12px;
  overflow-x: auto;
}
nav.tabs a {
  color: white;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  white-space: nowrap;
  opacity: 0.85;
}
nav.tabs a.active { background: rgba(255,255,255,0.2); opacity: 1; font-weight: 600; box-shadow: inset 0 -3px 0 var(--tenant-accent); }

main { max-width: 1100px; margin: 0 auto; padding: 16px; }

h1 { font-size: 1.35rem; margin: 4px 0 16px; }
h2 { font-size: 1.1rem; margin: 0 0 10px; }

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

.grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border-radius: 12px; padding: 16px; border: 1px solid var(--border); }
.stat .value { font-size: 1.7rem; font-weight: 700; color: var(--primary-dark); }
.stat .label { color: var(--muted); font-size: 0.85rem; }
.stat.alert .value { color: var(--danger); }

/* ---------- Formulaires ---------- */
label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 4px; margin-top: 10px; }
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: white;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

button, .btn {
  display: inline-block;
  border: none;
  background: var(--tenant-primary);
  color: white;
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 600;
}
button.secondary, .btn.secondary { background: #eef1f4; color: var(--text); }
button.danger, .btn.danger { background: var(--danger); }
button.success, .btn.success { background: var(--accent); }
button:disabled { opacity: 0.5; cursor: default; }
button.big { width: 100%; padding: 18px; font-size: 1.15rem; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 1; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
tr.low-stock td { color: var(--danger); font-weight: 600; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.72rem; font-weight: 700; }
.badge.ok { background: #e3f6ea; color: var(--accent); }
.badge.low { background: #fbe9e7; color: var(--danger); }

/* ---------- Ecran de scan ---------- */
.scan-box {
  text-align: center;
  padding: 30px 16px;
}
.scan-box input {
  font-size: 1.4rem;
  text-align: center;
  padding: 18px;
  border: 3px solid var(--primary);
  letter-spacing: 1px;
}
.scan-hint { color: var(--muted); font-size: 0.85rem; margin-top: 8px; }
.article-found { text-align: left; }
.article-found .designation { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.article-found .meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 14px; }
.qty-controls { display: flex; align-items: center; gap: 10px; margin: 14px 0; }
.qty-controls button { width: 52px; height: 52px; font-size: 1.4rem; padding: 0; }
.qty-controls input { text-align: center; font-size: 1.3rem; }
.type-toggle { display: flex; gap: 8px; margin-bottom: 10px; }
.type-toggle button { flex: 1; background: #eef1f4; color: var(--text); }
.type-toggle button.active.entree { background: var(--accent); color: white; }
.type-toggle button.active.sortie { background: var(--danger); color: white; }
.type-toggle button.active.inventaire { background: var(--warn); color: white; }

.msg { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 0.9rem; }
.msg.error { background: #fbe9e7; color: var(--danger); }
.msg.success { background: #e3f6ea; color: #1e7a45; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card { max-width: 400px; width: 100%; }
.login-card .brand-badge {
  margin: -16px -16px 20px -16px;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
  background: var(--primary-dark);
  display: flex;
  justify-content: center;
}
.login-card .brand-badge img { width: 100%; display: block; }
.login-card .brand { text-align: center; margin-bottom: 20px; }
.login-card .brand .big { font-size: 1.6rem; font-weight: 800; color: var(--primary-dark); }
.login-card .brand .sub { color: var(--muted); font-size: 0.85rem; }

.demo-users { font-size: 0.78rem; color: var(--muted); margin-top: 16px; background: #f4f6f8; padding: 10px; border-radius: 8px; }

/* Bandeau "déployé pour <client>" sur la page de connexion, avec son logo -
   en plus du badge Helviqo au-dessus, jamais à sa place. Masqué par défaut ;
   affiché en JS (index.html) uniquement si /api/tenant fournit un branding. */
.login-card .client-branding {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: -4px 0 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.login-card .client-branding img { height: 34px; width: auto; display: block; }
.login-card .client-branding .txt { font-size: 0.78rem; color: var(--muted); }
.login-card .client-branding.actif { display: flex; }

@media (max-width: 700px) {
  nav.tabs {
    position: fixed; bottom: 0; left: 0; right: 0; justify-content: space-around;
    padding: 8px; z-index: 20;
  }
  nav.tabs a { padding: 8px 10px; font-size: 0.78rem; }
  main { padding: 12px; }
}