:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --bg-card: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-hover: #d1d5db;
  --accent: #6366f1;
  --accent-light: #eef2ff;
  --accent-hover: #4f46e5;
  --success: #10b981;  --success-light: #ecfdf5;
  --warning: #f59e0b;  --warning-light: #fffbeb;
  --danger: #ef4444;   --danger-light: #fef2f2;
  --info: #3b82f6;     --info-light: #eff6ff;
  --shadow: 0 1px 3px rgba(0,0,0,.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.1);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --sidebar-w: 240px;
  --transition: .2s ease;
}
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #0f172a;
  --bg-card: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #334155;
  --border-hover: #475569;
  --accent: #818cf8;
  --accent-light: #1e1b4b;
  --accent-hover: #6366f1;
  --success: #34d399;  --success-light: #064e3b;
  --warning: #fbbf24;  --warning-light: #451a03;
  --danger: #f87171;   --danger-light: #450a0a;
  --info: #60a5fa;     --info-light: #1e3a5f;
  --shadow: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 6px rgba(0,0,0,.3);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.4);
}

*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg-tertiary);color:var(--text-primary);transition:background var(--transition),color var(--transition)}
#root{height:100vh;display:flex;flex-direction:column;overflow:hidden}

/* ── buttons ────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem 1.25rem;border:none;border-radius:var(--radius);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition);text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg-tertiary)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-ghost{background:transparent;color:var(--text-secondary)}
.btn-ghost:hover{background:var(--bg-secondary);color:var(--text-primary)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:.375rem .75rem;font-size:.8125rem}
.btn-icon{padding:.5rem}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important}

/* ── forms ──────────────────────────────────────────── */
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-size:.875rem;font-weight:500;color:var(--text-primary);margin-bottom:.5rem}
.form-control{width:100%;padding:.625rem .875rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);color:var(--text-primary);font-size:.875rem;transition:border-color var(--transition),box-shadow var(--transition);outline:none;font-family:inherit}
.form-control:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(99,102,241,.1)}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%236b7280' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;padding-right:2rem;background-color:var(--bg-secondary)}
textarea.form-control{resize:vertical;min-height:120px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-row-3{grid-template-columns:1fr 1fr 1fr}
.form-section-title{font-size:.8125rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.error-msg{background:var(--danger-light);color:var(--danger);padding:.75rem 1rem;border-radius:var(--radius);font-size:.875rem;margin-bottom:1rem;border:1px solid rgba(239,68,68,.2)}

/* ── layout ─────────────────────────────────────────── */
.app-layout{display:flex;height:100vh;overflow:hidden}
.sidebar{width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}
.sidebar-header{padding:1rem;display:flex;align-items:center;gap:.75rem;border-bottom:1px solid var(--border);min-height:60px}
.logo-text{font-size:1rem;font-weight:700;color:var(--accent)}
.sidebar-nav{flex:1;padding:.75rem 0;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:.75rem;padding:.625rem 1rem;color:var(--text-secondary);font-size:.875rem;cursor:pointer;border:none;background:none;width:100%;text-align:left;white-space:nowrap;transition:all var(--transition)}
.nav-item:hover{background:var(--bg-secondary);color:var(--text-primary)}
.nav-item.active{background:var(--accent-light);color:var(--accent);font-weight:500}
.nav-item i{font-size:1rem;width:20px;flex-shrink:0}
.nav-section-title{font-size:.7rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;padding:.75rem 1rem .25rem}
.sidebar-footer{padding:1rem;border-top:1px solid var(--border)}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.75rem;font-weight:700;flex-shrink:0}
.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}
.topbar{height:60px;background:var(--bg-card);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 1.5rem;gap:1rem;flex-shrink:0}
.topbar-left{display:flex;align-items:center;gap:1rem;flex:1}
.topbar-right{display:flex;align-items:center;gap:.5rem}
.topbar-title{font-size:1.125rem;font-weight:600}
.search-box{display:flex;align-items:center;gap:.5rem;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:.375rem .75rem;flex:1;max-width:320px}
.search-box i{color:var(--text-muted);font-size:.875rem}
.search-box input{border:none;background:none;outline:none;color:var(--text-primary);font-size:.875rem;width:100%}
.search-box input::placeholder{color:var(--text-muted)}
.page-content{flex:1;overflow-y:auto;padding:1.5rem}

/* ── cards ──────────────────────────────────────────── */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem}
.av-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:all var(--transition);position:relative}
.av-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--border-hover)}
.av-card-color-bar{height:4px}
.av-card-body{padding:1rem}
.av-card-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:.75rem;gap:.5rem}
.av-card-title{font-size:.9375rem;font-weight:600;flex:1}
.av-card-meta{display:flex;flex-direction:column;gap:.375rem;margin-bottom:.75rem}
.av-card-meta-row{display:flex;align-items:center;gap:.5rem;font-size:.8125rem;color:var(--text-secondary)}
.av-card-meta-row i{width:14px;font-size:.75rem;color:var(--text-muted)}
.av-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:.75rem;border-top:1px solid var(--border);margin-top:.75rem}
.av-card-actions{display:flex;gap:.25rem;opacity:0;transition:opacity var(--transition)}
.av-card:hover .av-card-actions{opacity:1}

/* ── list ────────────────────────────────────────────── */
.av-list{display:flex;flex-direction:column;gap:.5rem}
.av-list-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:.875rem 1rem;display:flex;align-items:center;gap:1rem;cursor:pointer;transition:all var(--transition)}
.av-list-item:hover{border-color:var(--border-hover);box-shadow:var(--shadow)}
.av-list-item-color{width:4px;height:40px;border-radius:2px;flex-shrink:0}
.av-list-item-main{flex:1;min-width:0}
.av-list-item-title{font-size:.9375rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:.25rem}
.av-list-item-sub{font-size:.8125rem;color:var(--text-secondary);display:flex;align-items:center;gap:1rem;flex-wrap:wrap}

/* ── kanban ──────────────────────────────────────────── */
.kanban-board{display:flex;gap:1rem;overflow-x:auto;padding-bottom:1rem;align-items:flex-start}
.kanban-col{background:var(--bg-secondary);border-radius:var(--radius-lg);width:280px;flex-shrink:0;display:flex;flex-direction:column;max-height:calc(100vh - 180px)}
.kanban-col-header{padding:.875rem 1rem;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
.kanban-col-title{font-size:.875rem;font-weight:600}
.kanban-col-count{background:var(--bg-tertiary);color:var(--text-secondary);font-size:.75rem;padding:.125rem .5rem;border-radius:20px}
.kanban-cards{padding:.75rem;display:flex;flex-direction:column;gap:.5rem;overflow-y:auto;flex:1}
.kanban-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:.875rem;cursor:pointer;transition:all var(--transition)}
.kanban-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}

/* ── badges ─────────────────────────────────────────── */
.status-badge{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .625rem;border-radius:20px;font-size:.75rem;font-weight:500;white-space:nowrap;flex-shrink:0}
.priority-badge{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .5rem;border-radius:var(--radius);font-size:.75rem;font-weight:500}
.priority-haute{background:var(--danger-light);color:var(--danger)}
.priority-normal{background:var(--info-light);color:var(--info)}
.priority-basse{background:var(--success-light);color:var(--success)}
.tag{display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .5rem;border-radius:20px;font-size:.75rem;font-weight:500}
.tags-row{display:flex;flex-wrap:wrap;gap:.375rem;margin-top:.75rem}

/* ── modal ──────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;backdrop-filter:blur(2px)}
.modal{background:var(--bg-card);border-radius:var(--radius-xl);width:100%;max-width:800px;max-height:90vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg)}
.modal-lg{max-width:960px}
.modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.modal-title{font-size:1.125rem;font-weight:600}
.modal-body{flex:1;overflow-y:auto;padding:1.5rem}
.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:.75rem;flex-shrink:0}

/* ── detail sidebar ─────────────────────────────────── */
.detail-sidebar{width:400px;flex-shrink:0;border-left:1px solid var(--border);background:var(--bg-card);display:flex;flex-direction:column;overflow:hidden}
.detail-content{flex:1;overflow-y:auto;padding:1.5rem}
.detail-header{padding:1rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:flex-start;gap:.5rem}
.detail-title{flex:1;font-size:1.125rem;font-weight:600}
.detail-section{margin-bottom:1.5rem}
.detail-section-label{font-size:.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}
.note-preview{font-size:.875rem;line-height:1.6;color:var(--text-secondary);background:var(--bg-secondary);padding:.75rem;border-radius:var(--radius);cursor:pointer;min-height:80px;border:1px solid var(--border);position:relative}
.note-preview:hover{border-color:var(--accent)}

/* ── fullscreen note ────────────────────────────────── */
.fullscreen-note{position:fixed;inset:0;background:var(--bg-card);z-index:2000;display:flex;flex-direction:column}
.fullscreen-note-header{padding:1rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.fullscreen-note-body{flex:1;display:flex;overflow:hidden}
.note-toolbar{display:flex;align-items:center;gap:.5rem;padding:.625rem 1rem;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-wrap:wrap}
.note-toolbar button{padding:.375rem .625rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text-primary);font-size:.8125rem;cursor:pointer;transition:all var(--transition)}
.note-toolbar button:hover{background:var(--bg-tertiary)}
.note-toolbar button.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.note-mode-tabs{display:flex;background:var(--bg-secondary);border-radius:var(--radius);overflow:hidden}
.note-mode-tab{padding:.5rem 1rem;border:none;background:none;color:var(--text-secondary);cursor:pointer;font-size:.875rem;transition:all var(--transition);display:flex;align-items:center;gap:.5rem}
.note-mode-tab.active{background:var(--bg-card);color:var(--accent);font-weight:500;box-shadow:var(--shadow)}

/* ── filters / view toggle ──────────────────────────── */
.filter-select{padding:.375rem .75rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);color:var(--text-primary);font-size:.8125rem;outline:none;cursor:pointer}
.filter-select:focus{border-color:var(--accent)}
.view-toggle{display:flex;background:var(--bg-secondary);border-radius:var(--radius);padding:.25rem;gap:.25rem}
.view-btn{padding:.375rem .625rem;border:none;background:none;border-radius:6px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition);font-size:.875rem}
.view-btn.active{background:var(--bg-card);color:var(--text-primary);box-shadow:var(--shadow)}

/* ── admin ──────────────────────────────────────────── */
.admin-table{width:100%;border-collapse:collapse}
.admin-table th,.admin-table td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border);font-size:.875rem}
.admin-table th{font-weight:600;color:var(--text-secondary);font-size:.8125rem;background:var(--bg-secondary)}
.admin-table tr:hover td{background:var(--bg-secondary)}
.role-badge{padding:.2rem .625rem;border-radius:20px;font-size:.75rem;font-weight:500}
.role-admin{background:var(--danger-light);color:var(--danger)}
.role-commercial{background:var(--success-light);color:var(--success)}
.role-avantVente,.role-avant-vente{background:var(--warning-light);color:var(--warning)}
.role-user{background:var(--info-light);color:var(--info)}

/* ── stats ──────────────────────────────────────────── */
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin-bottom:1.5rem}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.25rem}
.stat-value{font-size:2rem;font-weight:700}
.stat-label{font-size:.8125rem;color:var(--text-secondary);margin-top:.25rem}
.stat-icon{width:40px;height:40px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-bottom:.75rem;font-size:1.125rem}

/* ── toast ──────────────────────────────────────────── */
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;display:flex;flex-direction:column;gap:.5rem;z-index:3000}
.toast{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:.875rem 1.25rem;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.75rem;font-size:.875rem;min-width:280px;animation:slideIn .2s ease}
.toast-success{border-left:3px solid var(--success)}
.toast-error{border-left:3px solid var(--danger)}
.toast-info{border-left:3px solid var(--info)}

/* ── misc ────────────────────────────────────────────── */
.color-swatch{width:28px;height:28px;border-radius:50%;cursor:pointer;border:2px solid transparent;transition:all var(--transition)}
.color-swatch.selected{border-color:var(--text-primary);transform:scale(1.2)}
.attachment-item{display:flex;align-items:center;gap:.75rem;padding:.625rem;background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border)}
.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-muted)}
.empty-state i{font-size:3rem;margin-bottom:1rem;opacity:.3;display:block}
.empty-state h3{color:var(--text-secondary);margin-bottom:.5rem}
.mobile-menu-btn{display:none}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:499}

/* ── animations ─────────────────────────────────────── */
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .2s ease}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
.slide-in{animation:slideIn .25s ease}

/* ── responsive ─────────────────────────────────────── */
@media(max-width:768px){
  .sidebar{position:fixed;left:0;top:0;height:100vh;z-index:500;transform:translateX(-100%);transition:transform var(--transition)}
  .sidebar.mobile-open{transform:translateX(0)}
  .form-row,.form-row-3{grid-template-columns:1fr}
  .detail-sidebar{display:none}
  .cards-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .topbar{padding:0 1rem}
  .page-content{padding:1rem}
  .mobile-menu-btn{display:flex}
}
@media(min-width:769px) and (max-width:1200px){
  :root{--sidebar-w:200px}
  .detail-sidebar{width:320px}
}

/* ── Barre de filtres responsive ────────────────────────────────── */
.filter-bar > div:first-child {
  row-gap: .5rem;
}
@media (max-width: 768px) {
  .filter-bar > div:first-child {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar > div:first-child > div:first-child {
    max-width: 100% !important;
  }
  .filter-select {
    flex: 1 1 calc(50% - .375rem);
    min-width: 0;
  }
  .filter-bar > div:first-child > div:last-child {
    margin-left: 0 !important;
    justify-content: space-between;
  }
}