/* ==========================================================================
   Design system — Notifications WhatsApp (style tableau de bord pro)
   ========================================================================== */
:root{
  --bg: #0b1220;
  --sidebar-bg: #0f1729;
  --sidebar-bg-2: #131d33;
  --sidebar-border: #1e293b;
  --content-bg: #f3f5f9;
  --card-bg: #ffffff;
  --card-border: #e8ebf1;
  --text-main: #1a2233;
  --text-muted: #6b7688;
  --accent: #1877F2;
  --accent-2: #0d5fc0;
  --accent-soft: #e7f0ff;
  --accent-grad: linear-gradient(135deg,#1877F2 0%,#0d5fc0 100%);
  --info: #3b82f6;
  --info-soft: #eaf1ff;
  --warn: #f59e0b;
  --warn-soft: #fff6e8;
  --danger: #ef4444;
  --danger-soft: #fdecec;
  --purple: #7c5cff;
  --purple-soft: #f1edff;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --shadow-md: 0 4px 14px rgba(16,24,40,.06);
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  background: var(--content-bg);
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size:14.5px;
  -webkit-font-smoothing: antialiased;
}
a{ text-decoration:none; }

/* ---------- App shell ---------- */
.app-shell{ display:flex; min-height:100vh; }

.sidebar{
  width: 258px;
  flex-shrink:0;
  background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg-2) 100%);
  color:#cbd5e1;
  display:flex;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
  z-index:40;
  border-right:1px solid var(--sidebar-border);
  overflow:hidden;
  transition: width .25s ease, opacity .2s ease, border-color .25s ease;
}
.sidebar-brand{
  display:flex; align-items:center; gap:10px;
  padding:22px 20px 18px 20px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.sidebar-brand .logo-badge{
  width:36px;height:36px;border-radius:10px;
  background: var(--accent-grad);
  display:flex;align-items:center;justify-content:center;
  font-size:18px; box-shadow: 0 4px 12px rgba(24,119,242,.35);
  flex-shrink:0;
}
.sidebar-brand .brand-name{ color:#fff; font-weight:700; font-size:15.5px; line-height:1.15; }
.sidebar-brand .brand-tag{ color:#7c8aa5; font-size:11px; letter-spacing:.04em; }

.sidebar-section-label{
  font-size:10.5px; text-transform:uppercase; letter-spacing:.09em;
  color:#5b6b87; padding:18px 20px 8px 20px; font-weight:700;
}
.sidebar-nav{ flex:1; overflow-y:auto; padding-bottom:12px; }
.sidebar-nav .nav-link{
  display:flex; align-items:center; gap:11px;
  color:#aab4c8; padding:10px 18px; margin:2px 12px; border-radius:10px;
  font-size:13.6px; font-weight:500; transition:.15s;
}
.sidebar-nav .nav-link i{ font-size:16px; width:18px; text-align:center; color:#7f8bab; }
.sidebar-nav .nav-link:hover{ background:rgba(255,255,255,.06); color:#fff; }
.sidebar-nav .nav-link:hover i{ color:#fff; }
.sidebar-nav .nav-link.active{
  background: var(--accent-grad); color:#fff;
  box-shadow: 0 4px 14px rgba(24,119,242,.28);
}
.sidebar-nav .nav-link.active i{ color:#fff; }
.sidebar-nav .nav-badge{
  margin-left:auto; background:rgba(255,255,255,.12); color:#fff;
  font-size:10.5px; font-weight:700; padding:2px 7px; border-radius:20px;
}

.sidebar-foot{
  padding:14px 18px; border-top:1px solid rgba(255,255,255,.06);
  display:flex; align-items:center; gap:10px;
}
.sidebar-foot .avatar{
  width:34px;height:34px;border-radius:50%; background:var(--accent-grad);
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:13px; flex-shrink:0;
}
.sidebar-foot .who{ min-width:0; }
.sidebar-foot .who .name{ color:#e5e9f2; font-size:12.8px; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sidebar-foot .who .role{ color:#5b6b87; font-size:11px; }
.sidebar-foot .logout-btn{ margin-left:auto; color:#7f8bab; font-size:16px; }
.sidebar-foot .logout-btn:hover{ color:#ef4444; }

/* ---------- Main / topbar ---------- */
.main-wrap{ flex:1; min-width:0; display:flex; flex-direction:column; }
.topbar{
  position:sticky; top:0; z-index:30;
  background: rgba(243,245,249,.85); backdrop-filter: blur(8px);
  border-bottom:1px solid var(--card-border);
  padding:16px 28px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.topbar h1{ font-size:19px; font-weight:700; margin:0; color:var(--text-main); }
.topbar .subtitle{ font-size:12.5px; color:var(--text-muted); margin-top:2px; }
.topbar .status-pill{
  display:inline-flex; align-items:center; gap:6px;
  background:var(--accent-soft); color:var(--accent-2);
  font-size:12px; font-weight:600; padding:6px 12px; border-radius:20px;
}
.topbar .status-pill .dot{ width:7px;height:7px;border-radius:50%; background:var(--accent); box-shadow:0 0 0 3px rgba(24,119,242,.25); }
.sidebar-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  border-color:var(--card-border); color:var(--text-main);
}
.sidebar-toggle:hover{ background:#f7f9fc; }

/* Sidebar caché/replié (bouton topbar) */
.app-shell.sidebar-collapsed .sidebar{
  width:0; min-width:0; opacity:0; border-right-color:transparent; pointer-events:none;
}

.content{ padding:26px 28px 40px 28px; }

/* ---------- Cards ---------- */
.card{
  background:var(--card-bg); border:1px solid var(--card-border);
  border-radius: var(--radius); box-shadow:var(--shadow-sm);
}
.card-header{
  background:transparent !important; border-bottom:1px solid var(--card-border) !important;
  font-weight:700; padding:16px 20px; font-size:14.5px;
}
.card-body{ padding:20px; }

/* KPI stat cards */
.stat-card{
  border-radius:var(--radius); border:1px solid var(--card-border); background:var(--card-bg);
  padding:18px 20px; box-shadow: var(--shadow-sm); position:relative; overflow:hidden;
}
.stat-card .stat-icon{
  width:42px;height:42px;border-radius:12px; display:flex;align-items:center;justify-content:center;
  font-size:19px; margin-bottom:14px;
}
.stat-card .stat-value{ font-size:26px; font-weight:800; line-height:1; color:var(--text-main); }
.stat-card .stat-label{ font-size:12.5px; color:var(--text-muted); margin-top:6px; font-weight:600;}
.stat-card .stat-delta{ font-size:11.5px; font-weight:700; margin-top:10px; display:inline-flex; align-items:center; gap:4px; }
.stat-card .stat-delta.up{ color:var(--accent-2); }
.stat-card .stat-delta.flat{ color:var(--text-muted); }
.icon-green{ background:var(--accent-soft); color:var(--accent-2); }
.icon-blue{ background:var(--info-soft); color:var(--info); }
.icon-purple{ background:var(--purple-soft); color:var(--purple); }
.icon-orange{ background:var(--warn-soft); color:var(--warn); }

/* Badges */
.badge-soft{ font-weight:700; font-size:11.2px; padding:5px 10px; border-radius:20px; border:none; }
.badge-soft.bg-success{ background:var(--accent-soft) !important; color:var(--accent-2) !important; }
.badge-soft.bg-danger{ background:var(--danger-soft) !important; color:var(--danger) !important; }
.badge-soft.bg-primary{ background:var(--info-soft) !important; color:var(--info) !important; }
.badge-soft.bg-info{ background:var(--purple-soft) !important; color:var(--purple) !important; }
.badge-soft.bg-warning{ background:var(--warn-soft) !important; color:var(--warn) !important; }

/* Buttons */
.btn-brand{
  background:var(--accent-grad); border:none; color:#fff; font-weight:600;
  box-shadow:0 4px 14px rgba(24,119,242,.28);
}
.btn-brand:hover{ color:#fff; filter:brightness(1.05); }
.btn-outline-brand{ border:1px solid var(--card-border); color:var(--text-main); background:#fff; font-weight:600; }
.btn-outline-brand:hover{ background:#f7f9fc; }

/* Tables */
.table > :not(caption) > * > *{ padding:11px 14px; vertical-align:middle; }
.table thead th{
  font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--text-muted);
  background:#f8f9fc; border-bottom:1px solid var(--card-border); font-weight:700;
}
.table tbody tr{ border-bottom:1px solid #f1f2f6; }
.table tbody tr:hover{ background:#fafbfd; }

/* Form controls */
.form-control, .form-select{
  border-radius:10px; border:1px solid var(--card-border); font-size:13.6px;
}
.form-control:focus, .form-select:focus{
  border-color:#8ab4f8; box-shadow:0 0 0 3px rgba(24,119,242,.14);
}
.form-label{ font-weight:600; font-size:13px; color:#334155; }

/* Recipient list */
.recipient-row{ padding:7px 8px; border-radius:8px; }
.recipient-row:hover{ background:#f5f7fa; }

/* Chat bubble (agent) */
.chat-bubble{ max-width:80%; padding:9px 13px; border-radius:14px; font-size:13.4px; margin-bottom:8px; line-height:1.4; }
.chat-bubble.user{ background:#eef1f6; color:#1a2233; border-bottom-left-radius:4px; }
.chat-bubble.assistant{ background:var(--accent-grad); color:#fff; margin-left:auto; border-bottom-right-radius:4px; }

/* Login page */
.auth-wrap{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(24,119,242,.18), transparent),
    radial-gradient(900px 500px at 110% 10%, rgba(124,92,255,.18), transparent),
    var(--sidebar-bg);
  padding:20px;
}
.auth-card{
  width:100%; max-width:392px; background:#fff; border-radius:18px;
  box-shadow:0 20px 60px rgba(0,0,0,.35); padding:34px 32px; border:1px solid rgba(255,255,255,.06);
}
.auth-logo{
  width:52px;height:52px;border-radius:14px;background:var(--accent-grad);
  display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;
  margin:0 auto 16px auto; box-shadow:0 8px 20px rgba(24,119,242,.35);
}

@media (max-width: 991px){
  .sidebar{ position:fixed; left:-270px; transition:.25s; box-shadow:0 0 40px rgba(0,0,0,.3); }
  .sidebar.open{ left:0; }
  .sidebar-toggle{ display:inline-flex; }
  .content{ padding:18px; }
  .topbar{ padding:14px 16px; }
}