/* ── Palette identique au logiciel desktop ── */
:root {
  --accent:       #2ECC71;
  --accent-dark:  #27AE60;
  --accent-light: #EAFAF1;
  --dark-bg:      #1A1F2E;
  --dark-bg2:     #0D1220;
  --dark-border:  #2A3450;
  --card-bg:      #FFFFFF;
  --content-bg:   #F5F7FA;
  --border:       #E8EDF5;
  --text-dark:    #1A1F2E;
  --text-muted:   #8B9BB4;
  --text-white:   #FFFFFF;
  --red:          #E74C3C;
  --red-light:    #FDEDEC;
  --orange:       #E67E22;
  --orange-light: #FEF9E7;
  --blue:         #3498DB;
  --blue-light:   #EBF5FB;
  --purple:       #9B59B6;
  --purple-light: #F5EEF8;
  --sidebar-w:    240px;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--content-bg);color:var(--text-dark);font-size:14px;}

/* ══════════════════════ SIDEBAR ══════════════════════ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--dark-bg);display:flex;flex-direction:column;z-index:100;
}
.sidebar-logo{
  padding:20px 16px;border-bottom:1px solid var(--dark-border);
  display:flex;align-items:center;gap:12px;
}
.sidebar-logo-badge{
  width:40px;height:40px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),#1ABC9C);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:18px;color:white;
}
.sidebar-logo-text span{
  display:block;font-size:14px;font-weight:700;color:var(--text-white);
}
.sidebar-logo-text small{
  font-size:10px;color:var(--text-muted);
}
.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto;}
.sidebar-nav::-webkit-scrollbar{width:4px;}
.sidebar-nav::-webkit-scrollbar-track{background:var(--dark-bg);}
.sidebar-nav::-webkit-scrollbar-thumb{background:var(--dark-border);border-radius:4px;}
.sidebar-nav::-webkit-scrollbar-thumb:hover{background:#3a4a6a;}
.nav-section{
  padding:14px 18px 6px;font-size:9px;font-weight:700;
  color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;
}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:11px 18px;
  color:#8B9BB4;text-decoration:none;border-radius:0;
  transition:.15s;font-size:12px;font-weight:500;
  border-left:3px solid transparent;
}
.nav-item:hover{background:rgba(46,204,113,.1);color:var(--accent);}
.nav-item.active{
  background:rgba(46,204,113,.12);color:var(--accent);font-weight:600;
  border-left:3px solid var(--accent);
}
.nav-item i{width:16px;text-align:center;flex-shrink:0;}
.sidebar-footer{padding:14px;border-top:1px solid var(--dark-border);}
.user-chip{
  display:flex;align-items:center;gap:10px;padding:10px 12px;
  background:rgba(255,255,255,.05);border-radius:12px;
}
.user-avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),#1ABC9C);
  color:white;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;flex-shrink:0;
}
.user-info{flex:1;min-width:0;}
.user-info strong{display:block;font-size:12px;color:var(--text-white);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.user-info small{font-size:10px;color:var(--text-muted);}

/* ══════════════════════ HEADER ══════════════════════ */
.sidebar{transition:transform .28s cubic-bezier(.4,0,.2,1);}
.main{
  margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;
  transition:margin-left .28s cubic-bezier(.4,0,.2,1);
}
/* Sidebar collapsed state (used on Caisse page) */
body.sidebar-collapsed .sidebar{transform:translateX(calc(-1 * var(--sidebar-w)));}
body.sidebar-collapsed .main{margin-left:0;}
/* Floating sidebar toggle button */
.sidebar-toggle{
  position:fixed;top:16px;left:12px;z-index:200;
  width:38px;height:38px;border-radius:10px;border:none;cursor:pointer;
  background:var(--dark-bg);color:white;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 12px rgba(0,0,0,.35);
  transition:background .15s,left .28s cubic-bezier(.4,0,.2,1);
}
.sidebar-toggle:hover{background:#2ECC71;}
body:not(.sidebar-collapsed) .sidebar-toggle{left:calc(var(--sidebar-w) + 10px);}
.header{
  height:64px;background:var(--card-bg);border-bottom:1px solid var(--border);
  display:flex;align-items:center;padding:0 28px 0 56px;gap:16px;
  position:sticky;top:0;z-index:90;
  transition:padding-left .28s cubic-bezier(.4,0,.2,1);
}
body.sidebar-collapsed .header{padding-left:62px;}
.header-title{font-size:18px;font-weight:700;color:var(--text-dark);flex:1;}
/* Header right actions */
.header-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:var(--content-bg);border:1.5px solid var(--border);border-radius:22px;
  padding:0 14px;height:38px;width:220px;
  transition:border-color .2s,width .3s;
}
.header-search:focus-within{border-color:var(--accent);width:260px;}
.header-search-ico{color:var(--text-muted);font-size:13px;flex-shrink:0;}
.header-search input{
  border:none;background:transparent;outline:none;
  font-size:13px;color:var(--text-dark);width:100%;font-family:inherit;
}
.header-search input::placeholder{color:var(--text-muted);}
.header-icon-btn{
  position:relative;width:38px;height:38px;border-radius:50%;
  border:1.5px solid var(--border);background:var(--content-bg);
  color:var(--text-muted);font-size:15px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:.15s;
}
.header-icon-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(46,204,113,.08);}
.header-badge{
  position:absolute;top:-4px;right:-4px;
  background:var(--red);color:white;font-size:9px;font-weight:700;
  width:16px;height:16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--card-bg);
}
.header-logout-btn{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  border:1.5px solid var(--border);border-radius:22px;
  background:var(--content-bg);color:var(--text-dark);
  font-size:13px;font-weight:600;text-decoration:none;
  transition:.15s;
}
.header-logout-btn:hover{border-color:#C0392B;color:#C0392B;background:rgba(192,57,43,.08);}
.header-logout-btn i{font-size:14px;}
.content{flex:1;padding:28px;}

/* ══════════════════════ KPI CARDS ══════════════════════ */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;margin-bottom:24px;}
.kpi-card{
  background:var(--card-bg);border:1.5px solid var(--border);border-radius:16px;
  padding:18px 20px;display:flex;flex-direction:column;gap:6px;
}
.kpi-card .kpi-icon{
  width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:17px;
  margin-bottom:4px;
}
.kpi-card .kpi-val{font-size:20px;font-weight:700;color:var(--text-dark);}
.kpi-card .kpi-lbl{font-size:12px;color:var(--text-dark);font-weight:600;}
.kpi-card .kpi-sub{font-size:11px;color:var(--text-muted);}
.kpi-green  .kpi-icon{background:#DCFCE7;color:var(--accent-dark);}
.kpi-green  .kpi-val {color:var(--accent-dark);}
.kpi-blue   .kpi-icon{background:var(--blue-light);color:var(--blue);}
.kpi-orange .kpi-icon{background:var(--orange-light);color:var(--orange);}
.kpi-orange .kpi-val {color:var(--orange);}
.kpi-red    .kpi-icon{background:var(--red-light);color:var(--red);}
.kpi-red    .kpi-val {color:var(--red);}
.kpi-purple .kpi-icon{background:var(--purple-light);color:var(--purple);}

/* Mini KPI bar (produits page) */
.kpi-mini-bar{display:flex;gap:12px;padding:16px 24px;background:var(--content-bg);}
.kpi-mini{
  background:var(--card-bg);border:1.5px solid var(--border);border-radius:12px;
  padding:10px 16px;display:flex;align-items:center;gap:10px;flex:1;
}
.kpi-mini-icon{
  width:28px;height:28px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;
}
.kpi-mini .kpi-lbl{font-size:10px;color:var(--text-muted);font-weight:600;text-transform:uppercase;}
.kpi-mini .kpi-val{font-size:15px;font-weight:700;color:var(--text-dark);}

/* ══════════════════════ CARDS / TABLES ══════════════════════ */
.card{background:var(--card-bg);border:1.5px solid var(--border);border-radius:16px;overflow:hidden;}
.card-header{
  padding:14px 20px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-header h2{font-size:14px;font-weight:700;color:var(--text-dark);}
.card-body{padding:20px;}
table{width:100%;border-collapse:collapse;}
th{
  text-align:left;font-size:10px;font-weight:700;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:.06em;padding:10px 14px;
  border-bottom:1px solid var(--border);background:var(--content-bg);
}
td{padding:12px 14px;border-bottom:1px solid var(--border);font-size:13px;vertical-align:middle;}
tr:last-child td{border-bottom:none;}
tr:hover td{background:#FAFBFF;}

/* ══════════════════════ BADGES ══════════════════════ */
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;
  font-size:11px;font-weight:600;
}
.badge-green {background:var(--accent-light);color:var(--accent-dark);}
.badge-red   {background:var(--red-light);color:var(--red);}
.badge-blue  {background:var(--blue-light);color:var(--blue);}
.badge-orange{background:var(--orange-light);color:var(--orange);}

/* ══════════════════════ BOUTONS ══════════════════════ */
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:0 16px;height:36px;
  border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;
  border:none;transition:.15s;text-decoration:none;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#1ABC9C);
  color:white;
}
.btn-primary:hover{background:var(--accent-dark);color:white;}
.btn-outline{
  background:var(--card-bg);color:var(--text-dark);
  border:1.5px solid var(--border);
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-danger{background:var(--red-light);color:var(--red);border:1.5px solid var(--red);}
.btn-danger:hover{background:var(--red);color:white;}
.btn-sm{height:30px;padding:0 12px;font-size:12px;}
.btn-icon{
  width:32px;height:32px;padding:0;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
}
.btn-save{
  display:flex;align-items:center;gap:8px;padding:0 18px;height:36px;
  background:var(--accent-light);color:var(--accent-dark);
  border:1.5px solid var(--accent);border-radius:10px;
  font-size:13px;font-weight:600;cursor:pointer;transition:.15s;
}
.btn-save:hover{background:var(--accent);color:white;}

/* ══════════════════════ INPUTS ══════════════════════ */
input,select,textarea{
  font-family:inherit;font-size:13px;color:var(--text-dark);
  background:var(--content-bg);border:1.5px solid var(--border);
  border-radius:10px;padding:9px 12px;outline:none;transition:.15s;width:100%;
}
input:focus,select:focus,textarea:focus{border-color:var(--accent);background:white;}
.input-group{display:flex;flex-direction:column;gap:6px;}
.input-group label{font-size:11px;font-weight:700;color:var(--text-dark);text-transform:uppercase;letter-spacing:.04em;}
.search-bar{max-width:280px;border-radius:18px;padding:8px 14px;}

/* ══════════════════════ MODAL ══════════════════════ */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;
  display:none;align-items:center;justify-content:center;
}
.modal-overlay.open{display:flex;}
.modal{
  background:var(--card-bg);border-radius:20px;padding:28px;width:540px;
  max-width:96vw;max-height:90vh;overflow-y:auto;
  box-shadow:0 24px 64px rgba(0,0,0,.18);
}
.modal-title{
  font-size:16px;font-weight:700;margin-bottom:22px;
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px solid var(--border);
}
.modal-close{
  width:28px;height:28px;border-radius:50%;background:var(--border);
  border:none;cursor:pointer;font-size:14px;color:var(--text-muted);
}
.modal-close:hover{background:var(--red);color:white;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-grid-full{grid-column:1/-1;}

/* ══════════════════════ CAISSE (POS) ══════════════════════ */
.pos-layout{display:grid;grid-template-columns:1fr 340px;gap:0;height:calc(100vh - 64px);overflow:hidden;}
.pos-products{overflow-y:auto;background:var(--content-bg);padding:0;}

/* Barre top caisse */
.pos-topbar{
  background:var(--card-bg);border-bottom:1px solid var(--border);
  padding:10px 16px;display:flex;gap:10px;align-items:center;
  position:sticky;top:0;z-index:10;
}

/* Onglets catégories */
.cat-tabs{display:flex;gap:6px;padding:10px 16px;flex-wrap:wrap;}
.cat-tab{
  padding:6px 14px;border-radius:20px;font-size:12px;font-weight:600;cursor:pointer;
  border:1.5px solid var(--border);background:var(--card-bg);color:var(--text-muted);
  transition:.15s;white-space:nowrap;
}
.cat-tab:hover{border-color:var(--accent);color:var(--accent);}
.cat-tab.active{background:var(--accent);color:white;border-color:var(--accent);}

/* Grille produits */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;padding:12px 16px;}
.prod-tile{
  background:var(--card-bg);border:1.5px solid var(--border);border-radius:14px;
  padding:14px 12px;cursor:pointer;transition:.15s;text-align:center;
}
.prod-tile:hover{border-color:var(--accent);background:var(--accent-light);transform:translateY(-2px);}
.prod-tile.out-of-stock{opacity:.5;cursor:not-allowed;}
.prod-tile .pt-nom{font-weight:600;font-size:12px;margin-bottom:6px;line-height:1.3;}
.prod-tile .pt-prix{font-size:16px;font-weight:700;color:var(--accent-dark);}
.prod-tile .pt-stock{font-size:10px;color:var(--text-muted);margin-top:4px;}

/* ── PANIER (fond sombre comme le desktop) ── */
.cart-panel{
  background:var(--dark-bg);display:flex;flex-direction:column;
  border-left:1px solid var(--dark-border);
}
.cart-header{
  padding:0 18px;height:54px;flex-shrink:0;
  background:linear-gradient(90deg,#0D1220,#151E30);
  border-bottom:1px solid var(--dark-border);
  display:flex;align-items:center;gap:8px;
}
.cart-header-title{font-size:14px;font-weight:700;color:white;}
.cart-header-count{font-size:12px;color:var(--accent);margin-left:4px;}
.cart-items{flex:1;overflow-y:auto;padding:10px;}
.cart-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  height:100%;color:var(--text-muted);font-size:13px;gap:10px;
}
.cart-empty i{font-size:36px;opacity:.4;}
.cart-item{
  display:flex;align-items:center;gap:8px;padding:10px;
  background:rgba(255,255,255,.06);border-radius:10px;margin-bottom:6px;
  border:1px solid rgba(255,255,255,.05);
}
.cart-item .ci-nom{flex:1;font-size:12px;font-weight:500;color:white;line-height:1.3;}
.cart-item .ci-prix{font-size:13px;font-weight:700;color:var(--accent);white-space:nowrap;}
.ci-qty{display:flex;align-items:center;gap:4px;}
.ci-qty button{
  width:24px;height:24px;border-radius:50%;
  border:1.5px solid var(--dark-border);background:rgba(255,255,255,.1);
  cursor:pointer;font-size:13px;font-weight:700;color:white;
  display:flex;align-items:center;justify-content:center;transition:.15s;
}
.ci-qty button:hover{background:var(--accent);border-color:var(--accent);}
.ci-qty span{min-width:22px;text-align:center;font-size:13px;font-weight:700;color:white;}

/* Zone totaux (fond dégradé sombre) */
.cart-totals{
  flex-shrink:0;padding:14px 18px;
  background:linear-gradient(180deg,#151E30,#0D1220);
  border-top:1px solid var(--dark-border);
}
.cart-total-row{
  display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:#8B9BB4;margin-bottom:4px;
}
.cart-total-sep{
  height:1px;background:var(--dark-border);margin:8px 0;
}
.cart-total-ttc{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;
}
.cart-total-ttc span:first-child{font-size:13px;font-weight:700;color:white;}
.cart-total-ttc span:last-child{font-size:26px;font-weight:700;color:var(--accent);}

/* Zone actions panier */
.cart-actions{
  flex-shrink:0;padding:10px 12px 12px;background:#0A0F1C;
}
.cart-actions-row{display:flex;gap:6px;margin-bottom:8px;}
.cart-act-btn{
  flex:1;height:36px;border-radius:10px;border:1.5px solid;
  font-size:11px;font-weight:700;cursor:pointer;transition:.15s;
}
.cart-act-btn.vider{
  background:#2A1010;color:var(--red);border-color:var(--red);
}
.cart-act-btn.vider:hover{background:var(--red);color:white;}
.cart-act-btn.attente{
  background:#0A1A2A;color:var(--blue);border-color:var(--blue);
}
.cart-act-btn.attente:hover{background:var(--blue);color:white;}
.cart-act-btn.reprendre{
  background:#001A14;color:#1ABC9C;border-color:#16A085;
}
.cart-act-btn.reprendre:hover{background:#16A085;color:white;}
.cart-act-btn.retour{
  background:#1A1000;color:#F59E0B;border-color:#D97706;
}
.cart-act-btn.retour:hover{background:#D97706;color:white;}
.pay-select{
  width:100%;height:38px;border-radius:10px;margin-bottom:8px;
  background:#151E30;color:white;border:1.5px solid var(--dark-border);
  font-size:13px;padding:0 12px;
}
.pay-select:focus{border-color:var(--accent);}
.encaisser-btn{
  width:100%;height:48px;border-radius:12px;border:none;
  background:linear-gradient(135deg,var(--accent),#1ABC9C);
  color:white;font-size:15px;font-weight:700;cursor:pointer;transition:.15s;
}
.encaisser-btn:hover{background:var(--accent-dark);}
.encaisser-btn:disabled{opacity:.5;cursor:not-allowed;background:#2A3450;}

/* ══════════════════════ ALERT / FLASH ══════════════════════ */
.flash{padding:12px 18px;border-radius:10px;margin-bottom:16px;font-size:13px;}
.flash-success{background:var(--accent-light);color:var(--accent-dark);border:1px solid #A9DFBF;}
.flash-error  {background:var(--red-light);color:var(--red);border:1px solid #F5B7B1;}

/* ══════════════════════ LOGIN ══════════════════════ */
.login-page{
  min-height:100vh;display:flex;align-items:center;
  justify-content:center;background:var(--dark-bg);
}
.login-card{
  background:var(--card-bg);border-radius:24px;padding:40px;
  width:420px;max-width:95vw;box-shadow:0 24px 80px rgba(0,0,0,.35);
}
.login-logo{text-align:center;margin-bottom:28px;}
.login-logo-badge{
  width:64px;height:64px;border-radius:16px;margin:0 auto 14px;
  background:linear-gradient(135deg,var(--accent),#1ABC9C);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;font-weight:700;color:white;
}
.login-logo h1{font-size:22px;font-weight:700;color:var(--text-dark);}
.login-logo p{font-size:13px;color:var(--text-muted);margin-top:4px;}

/* ══════════════════════ CHARTS ══════════════════════ */
.chart-bar{display:flex;flex-direction:column;gap:12px;}
.bar-row{display:flex;align-items:center;gap:10px;}
.bar-label{width:140px;font-size:12px;color:var(--text-dark);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.bar-track{flex:1;background:var(--content-bg);border-radius:20px;height:10px;overflow:hidden;}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#1ABC9C);border-radius:20px;transition:.5s;}
.bar-val{width:90px;text-align:right;font-size:12px;font-weight:700;color:var(--text-dark);}

/* ══════════════════════ RESPONSIVE ══════════════════════ */
@media(max-width:900px){
  .sidebar{
    transform:translateX(-100%);transition:.3s;
    z-index:200; /* au-dessus de l'overlay */
  }
  .sidebar.open{transform:translateX(0);}
  /* Le bouton toggle reste fixe en haut à gauche */
  body:not(.sidebar-collapsed) .sidebar-toggle{left:12px;}
  .main{margin-left:0;}
  .header{padding-left:62px;}
  .pos-layout{grid-template-columns:1fr;height:auto;}
  .cart-panel{height:420px;}
  .form-grid{grid-template-columns:1fr;}
  .kpi-mini-bar{flex-wrap:wrap;}
  /* Header : masquer la recherche sur très petit écran */
  .header-search{display:none;}
  /* KPI cards en 2 colonnes */
  .kpi-grid{grid-template-columns:repeat(2,1fr) !important;}
}

/* ══════════════════════ UTILITAIRES ══════════════════════ */
.text-green {color:var(--accent-dark);}
.text-red   {color:var(--red);}
.text-muted {color:var(--text-muted);}
.text-accent{color:var(--accent-dark);}
.text-right {text-align:right;}
.text-center{text-align:center;}
.fw-bold    {font-weight:700;}
.w-full     {width:100%;}
.mt-16{margin-top:16px;} .mt-8{margin-top:8px;} .mb-16{margin-bottom:16px;}
.flex{display:flex;} .items-center{align-items:center;}
.justify-between{justify-content:space-between;}