/* ============================================
   Mobile Agents App – Styles
   ============================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,.1);
  --header-h: 56px;
  --bottom-h: 64px;
  --sidebar-w: 280px;
  font-size: 15px;
}
html, body { height:100%; overflow:hidden; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif; background:var(--gray-100); color:var(--gray-800); }

/* ---------- Screens ---------- */
.screen { display:none; width:100%; height:100%; position:absolute; top:0; left:0; z-index:1; }
.screen.active { display:flex; z-index:2; }
.screen#screen-app { flex-direction:column; }

/* ---------- LOGIN ---------- */
#screen-login {
  align-items:center; justify-content:center;
  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #1d4ed8 100%);
}
.login-bg { position:absolute; inset:0; opacity:.06; background:radial-gradient(circle at 20% 50%, #fff 0%, transparent 60%), radial-gradient(circle at 80% 20%, #fff 0%, transparent 50%); }
.login-card { position:relative; width:90%; max-width:380px; background:rgba(255,255,255,.95); backdrop-filter:blur(20px); border-radius:20px; padding:2.5rem 2rem; box-shadow:var(--shadow-lg); text-align:center; animation:fadeUp .5s ease; }
@keyframes fadeUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
.login-logo { width:72px; height:72px; border-radius:50%; background:var(--primary); color:#fff; font-size:2rem; display:flex; align-items:center; justify-content:center; margin:0 auto 1rem; box-shadow:0 4px 15px rgba(37,99,235,.35); }
.login-title { font-size:1.6rem; font-weight:800; line-height:1.2; color:var(--gray-900); }
.login-subtitle { font-size:.85rem; color:var(--gray-500); margin-bottom:1.5rem; }

.field { display:flex; align-items:center; background:var(--gray-100); border-radius:var(--radius-sm); padding:0 1rem; margin-bottom:.85rem; border:2px solid transparent; transition:border .2s; }
.field:focus-within { border-color:var(--primary); background:#fff; }
.field label { color:var(--gray-400); font-size:1rem; margin-right:.75rem; }
.field input { flex:1; background:none; border:none; outline:none; padding:.85rem 0; font-size:.95rem; color:var(--gray-800); }
.field input::placeholder { color:var(--gray-400); }

.login-options { display:flex; justify-content:space-between; align-items:center; font-size:.8rem; margin-bottom:1.25rem; color:var(--gray-600); }
.login-options a { color:var(--primary); text-decoration:none; }
.login-options input { margin-right:4px; }

.btn { display:inline-flex; align-items:center; justify-content:center; gap:.5rem; padding:.75rem 1.5rem; border:none; border-radius:var(--radius-sm); font-size:.95rem; font-weight:600; cursor:pointer; transition:all .2s; text-decoration:none; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-block { width:100%; }
.btn-sm { padding:.45rem .85rem; font-size:.82rem; }
.btn-ghost { background:transparent; color:var(--gray-600); }
.btn-ghost:hover { background:var(--gray-100); }
.btn-danger { background:var(--danger); color:#fff; }
.btn-success { background:var(--success); color:#fff; }

/* ---------- MAIN APP LAYOUT ---------- */
.app-header { height:var(--header-h); background:#fff; border-bottom:1px solid var(--gray-200); display:flex; align-items:center; padding:0 1rem; gap:.75rem; position:sticky; top:0; z-index:100; flex-shrink:0; }
.header-btn { background:none; border:none; width:40px; height:40px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:1.15rem; color:var(--gray-600); cursor:pointer; transition:background .2s; }
.header-btn:hover { background:var(--gray-100); }
.app-header h2 { flex:1; font-size:1.05rem; font-weight:700; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

.content { flex:1; overflow-y:auto; overflow-x:hidden; -webkit-overflow-scrolling:touch; padding:1rem; padding-bottom:calc(var(--bottom-h) + .5rem); }

.bottom-nav { height:var(--bottom-h); background:#fff; border-top:1px solid var(--gray-200); display:flex; flex-shrink:0; position:sticky; bottom:0; z-index:100; }
.bn-item { flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px; background:none; border:none; cursor:pointer; color:var(--gray-400); font-size:.7rem; padding:.35rem 0; transition:color .2s; position:relative; }
.bn-item i { font-size:1.25rem; }
.bn-item.active { color:var(--primary); }
.bn-item span { font-weight:500; }
.bn-badge { position:absolute; top:4px; right:50%; transform:translateX(22px); background:var(--danger); color:#fff; font-size:.6rem; font-weight:700; width:18px; height:18px; border-radius:9px; display:flex; align-items:center; justify-content:center; }

/* ---------- SIDEBAR ---------- */
.sidebar { position:fixed; top:0; left:calc(var(--sidebar-w) * -1); width:var(--sidebar-w); height:100%; background:#fff; z-index:300; transition:left .3s cubic-bezier(.4,0,.2,1); display:flex; flex-direction:column; box-shadow:var(--shadow-lg); }
.sidebar.open { left:0; }
.sidebar-overlay { position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:299; display:none; }
.sidebar-overlay.open { display:block; }
.sidebar-head { display:flex; align-items:center; gap:.75rem; padding:1.25rem 1.25rem .75rem; font-size:1.1rem; font-weight:800; color:var(--primary); }
.sidebar-head i { font-size:1.6rem; }
.sidebar-user { display:flex; align-items:center; gap:.75rem; padding:.75rem 1.25rem 1rem; border-bottom:1px solid var(--gray-200); margin-bottom:.5rem; }
.sidebar-avatar { width:44px; height:44px; border-radius:50%; background:var(--primary-light); color:var(--primary); display:flex; align-items:center; justify-content:center; font-size:1.2rem; }
.sidebar-user div { flex:1; }
.sidebar-user strong { display:block; font-size:.9rem; }
.sidebar-user small { color:var(--gray-500); font-size:.78rem; }
.sidebar-menu { list-style:none; flex:1; padding:.5rem 0; }
.sidebar-menu li { display:flex; align-items:center; gap:.85rem; padding:.8rem 1.25rem; cursor:pointer; font-size:.9rem; color:var(--gray-600); transition:all .15s; }
.sidebar-menu li i { width:20px; text-align:center; font-size:1rem; color:var(--gray-400); }
.sidebar-menu li:hover { background:var(--gray-50); }
.sidebar-menu li.active { background:var(--primary-light); color:var(--primary); font-weight:600; }
.sidebar-menu li.active i { color:var(--primary); }
.sidebar-menu .badge { margin-left:auto; background:var(--danger); color:#fff; font-size:.65rem; font-weight:700; padding:2px 8px; border-radius:10px; }
.sidebar-footer { padding:1rem 1.25rem; border-top:1px solid var(--gray-200); }
.sidebar-footer a { display:flex; align-items:center; gap:.75rem; text-decoration:none; font-size:.9rem; color:var(--gray-500); transition:color .2s; }
.sidebar-footer a:hover { color:var(--danger); }

/* ---------- PAGE: Dashboard ---------- */
.stats-grid { display:grid; grid-template-columns:1fr 1fr; gap:.75rem; margin-bottom:1.25rem; }
.stat-card { background:#fff; border-radius:var(--radius); padding:1rem; box-shadow:var(--shadow); }
.stat-card .stat-icon { width:40px; height:40px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:1.1rem; margin-bottom:.6rem; }
.stat-card .stat-val { font-size:1.5rem; font-weight:800; }
.stat-card .stat-label { font-size:.78rem; color:var(--gray-500); margin-top:2px; }

.section-title { font-size:.9rem; font-weight:700; color:var(--gray-700); margin-bottom:.75rem; display:flex; align-items:center; gap:.5rem; }

.quick-list { background:#fff; border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; margin-bottom:1.25rem; }
.ql-item { display:flex; align-items:center; gap:.75rem; padding:.85rem 1rem; border-bottom:1px solid var(--gray-100); cursor:pointer; transition:background .15s; }
.ql-item:last-child { border:none; }
.ql-item:hover { background:var(--gray-50); }
.ql-icon { width:36px; height:36px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:.9rem; flex-shrink:0; }
.ql-body { flex:1; min-width:0; }
.ql-body h4 { font-size:.85rem; font-weight:600; }
.ql-body p { font-size:.75rem; color:var(--gray-500); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ql-right { font-size:.75rem; color:var(--gray-400); white-space:nowrap; }

/* ---------- PAGE: Catalog (Tree) ---------- */
.breadcrumbs { display:flex; align-items:center; gap:.4rem; font-size:.8rem; color:var(--gray-500); margin-bottom:.75rem; overflow-x:auto; white-space:nowrap; -webkit-overflow-scrolling:touch; padding-bottom:4px; }
.breadcrumbs span { cursor:pointer; padding:2px 6px; border-radius:4px; transition:background .15s; }
.breadcrumbs span:hover { background:var(--gray-100); color:var(--primary); }
.breadcrumbs .sep { color:var(--gray-300); }
.breadcrumbs .current { color:var(--gray-800); font-weight:600; }

.tree-node { display:flex; align-items:center; gap:.75rem; padding:.7rem .85rem; background:#fff; border-radius:var(--radius-sm); margin-bottom:4px; cursor:pointer; transition:all .15s; box-shadow:0 1px 2px rgba(0,0,0,.03); }
.tree-node:hover { background:var(--primary-light); }
.tree-node .tn-icon { width:32px; height:32px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:.85rem; flex-shrink:0; }
.tree-node .tn-body { flex:1; min-width:0; }
.tree-node .tn-body h4 { font-size:.88rem; font-weight:600; }
.tree-node .tn-body p { font-size:.72rem; color:var(--gray-500); }
.tree-node .tn-right { font-size:.78rem; color:var(--gray-400); white-space:nowrap; }

/* Product card in tree leaf */
.product-card { display:flex; gap:.75rem; padding:.75rem; background:#fff; border-radius:var(--radius-sm); margin-bottom:4px; box-shadow:0 1px 2px rgba(0,0,0,.03); cursor:pointer; transition:all .15s; }
.product-card:hover { background:var(--primary-light); }
.product-img { width:48px; height:48px; border-radius:8px; background:var(--gray-100); flex-shrink:0; display:flex; align-items:center; justify-content:center; color:var(--gray-400); font-size:1.1rem; }
.product-info { flex:1; min-width:0; }
.product-info h4 { font-size:.82rem; font-weight:600; line-height:1.3; }
.product-info .sku { font-size:.68rem; color:var(--gray-400); }
.product-meta { display:flex; gap:1rem; margin-top:4px; font-size:.75rem; }
.product-meta .price { color:var(--primary); font-weight:700; }
.product-meta .stock { color:var(--gray-500); }

/* ---------- PAGE: Remnants & Prices ---------- */
.search-bar { position:relative; margin-bottom:.75rem; }
.search-bar i { position:absolute; left:12px; top:50%; transform:translateY(-50%); color:var(--gray-400); font-size:.9rem; }
.search-bar input { width:100%; background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius-sm); padding:.7rem 1rem .7rem 2.4rem; font-size:.88rem; outline:none; transition:border .2s; }
.search-bar input:focus { border-color:var(--primary); }

.filter-tabs { display:flex; gap:.4rem; overflow-x:auto; padding-bottom:4px; margin-bottom:.75rem; -webkit-overflow-scrolling:touch; }
.filter-tab { padding:.4rem .85rem; border-radius:20px; font-size:.78rem; font-weight:500; background:var(--gray-200); color:var(--gray-600); white-space:nowrap; cursor:pointer; border:none; transition:all .15s; }
.filter-tab.active { background:var(--primary); color:#fff; }
.filter-tab:hover:not(.active) { background:var(--gray-300); }

/* ---------- PAGE: Debtors ---------- */
.debtor-card { background:#fff; border-radius:var(--radius); padding:.85rem 1rem; margin-bottom:.6rem; box-shadow:var(--shadow); }
.debtor-head { display:flex; justify-content:space-between; align-items:start; margin-bottom:4px; }
.debtor-name { font-size:.9rem; font-weight:700; }
.debtor-debt { font-size:.88rem; font-weight:700; }
.debtor-debt.negative { color:var(--danger); }
.debtor-debt.warning { color:var(--warning); }
.debtor-meta { display:flex; gap:1rem; font-size:.75rem; color:var(--gray-500); }
.debtor-meta .overdue { color:var(--danger); }

/* ---------- PAGE: Tasks ---------- */
.task-item { display:flex; gap:.75rem; padding:.85rem; background:#fff; border-radius:var(--radius-sm); margin-bottom:.4rem; box-shadow:0 1px 2px rgba(0,0,0,.03); border-left:3px solid var(--primary); }
.task-item.urgent { border-left-color:var(--danger); }
.task-item.reminder { border-left-color:var(--warning); }
.task-item.done { opacity:.6; border-left-color:var(--success); }
.task-icon { width:28px; height:28px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:.75rem; flex-shrink:0; }
.task-body { flex:1; min-width:0; }
.task-body h4 { font-size:.84rem; font-weight:600; }
.task-body p { font-size:.75rem; color:var(--gray-500); }
.task-right { font-size:.7rem; color:var(--gray-400); white-space:nowrap; }

/* ---------- PAGE: Orders ---------- */
.order-card { background:#fff; border-radius:var(--radius); padding:.85rem 1rem; margin-bottom:.6rem; box-shadow:var(--shadow); }
.order-head { display:flex; justify-content:space-between; margin-bottom:4px; }
.order-num { font-weight:700; font-size:.88rem; }
.order-status { font-size:.7rem; padding:2px 10px; border-radius:10px; font-weight:600; }
.order-status.new { background:var(--primary-light); color:var(--primary); }
.order-status.sent { background:var(--gray-100); color:var(--gray-600); }
.order-status.done { background:#dcfce7; color:var(--success); }
.order-body { font-size:.78rem; color:var(--gray-500); }

/* ---------- TOAST ---------- */
#toast-container { position:fixed; top:calc(var(--header-h) + .5rem); right:.75rem; z-index:999; display:flex; flex-direction:column; gap:.5rem; pointer-events:none; }
.toast { background:var(--gray-900); color:#fff; padding:.7rem 1rem .7rem .85rem; border-radius:var(--radius-sm); font-size:.82rem; display:flex; align-items:center; gap:.65rem; box-shadow:var(--shadow-lg); animation:slideIn .3s ease; pointer-events:auto; max-width:320px; }
.toast i { font-size:.95rem; flex-shrink:0; }
.toast.success { background:var(--success); }
.toast.warning { background:var(--warning); color:var(--gray-900); }
.toast.error { background:var(--danger); }
.toast.fadeout { animation:slideOut .3s ease forwards; }
@keyframes slideIn { from{opacity:0;transform:translateX(60px)} to{opacity:1;transform:translateX(0)} }
@keyframes slideOut { from{opacity:1;transform:translateX(0)} to{opacity:0;transform:translateX(60px)} }

/* ---------- MISC ---------- */
.empty-state { text-align:center; padding:3rem 1rem; color:var(--gray-400); }
.empty-state i { font-size:2.5rem; margin-bottom:.75rem; display:block; }
.empty-state p { font-size:.9rem; }

/* ---------- SCROLLBAR ---------- */
.content::-webkit-scrollbar { width:4px; }
.content::-webkit-scrollbar-track { background:transparent; }
.content::-webkit-scrollbar-thumb { background:var(--gray-300); border-radius:2px; }

/* ---------- RESPONSIVE ---------- */
@media(min-width:768px) {
  .screen#screen-app { max-width:480px; margin:0 auto; box-shadow:var(--shadow-lg); border-left:1px solid var(--gray-200); border-right:1px solid var(--gray-200); }
  .sidebar { max-width:320px; }
}