* { box-sizing: border-box; }
:root { --bg:#0f172a; --card:#111827; --text:#e5e7eb; --muted:#94a3b8; --accent:#22c55e; --accent2:#3b82f6; --danger:#ef4444; --border:#1f2937; --input:#0b1220; --hover: rgba(255,255,255,0.04); }
[data-theme="light"] { --bg:#f7fafc; --card:#ffffff; --text:#0b1220; --muted:#475569; --accent:#16a34a; --accent2:#2563eb; --danger:#dc2626; --border:#e2e8f0; --input:#ffffff; --hover: rgba(2,6,23,0.04); }
html,body { margin:0; padding:0; background:var(--bg); color:var(--text); font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"; min-height:100%; }
body { display:flex; flex-direction:column; }
.container { max-width: 1100px; margin: 28px auto; padding: 0 16px; flex:1 0 auto; width:100%; }
h1 { margin: 0 0 16px; font-size: 28px; letter-spacing: -0.02em; }
.card { background: var(--card); border:1px solid var(--border); border-radius: 14px; padding:16px; margin-bottom:16px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
h2 { margin: 0 0 12px; font-size: 20px; }
.row { display:flex; gap:12px; align-items:center; margin-bottom:10px; }
.row label { width: 140px; color: var(--muted); }
.auth-center { flex:1 0 auto; display:flex; align-items:center; justify-content:center; padding:16px; height:100vh; }
.row textarea { resize: vertical; }
.actions { display:flex; gap:8px; }
button { padding:10px 14px; background: var(--accent); color:#03220f; font-weight:600; border:none; border-radius:12px; cursor:pointer; transition: transform .02s ease, filter .2s ease; }
button:hover { filter: brightness(0.98); }
button:active { transform: translateY(1px); }
button.secondary { background: var(--accent2); color:#051630; }
button.danger { background: var(--danger); color:#2a0f10; }
button:disabled { opacity:.6; cursor:not-allowed; }
.tabs { display:flex; gap:4px; border-bottom:1px solid var(--border); }
.tab { background:transparent; border:none; padding:8px 16px; color:var(--muted); border-radius:8px 8px 0 0; cursor:pointer; }
.tab.active { background:var(--accent); color:#03220f; }
.tab:hover:not(.active) { background:var(--hover); }
.report-section { margin-top:16px; }
.customer-section { margin-top:16px; }
.inventory-section { margin-top:16px; }
.financial-section { margin-top:16px; }
.workflow-section { margin-top:16px; }
.mobile-section { margin-top:16px; }
.bi-section { margin-top:16px; }
.widget-card { padding:16px; border:1px solid var(--border); border-radius:8px; text-align:center; }
.widget-card:hover { background:var(--hover); cursor:pointer; }
.stat-value { font-size:24px; font-weight:bold; color:var(--accent); }
.mini { padding:6px 8px; border-radius:8px; }
.hidden { display:none; }
.list-header { display:flex; align-items:center; justify-content:space-between; gap:12px; }
#search { max-width: 320px; }
.table-wrapper { overflow:auto; }
table { width:100%; border-collapse: collapse; }
th, td { padding:12px 10px; border-bottom:1px solid var(--border); text-align:left; }
th.num, td.num { text-align:right; }
thead th[data-sort] { user-select:none; position: relative; }
thead th[data-sort]:after { content: ' \25B4\25BE'; color: var(--muted); font-size: 10px; margin-left: 4px; opacity:.6; }
tr:hover td { background: var(--hover); }
.badge { padding:2px 8px; border-radius:999px; background:var(--input); border:1px solid var(--border); color:var(--muted); font-size:12px; }
.pagination { display:flex; align-items:center; justify-content:flex-end; gap:10px; padding-top:10px; }
.dashboard .stats { display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:12px; }
.dashboard .stat { background: var(--input); border:1px solid var(--border); border-radius:12px; padding:12px; }
.dashboard .stat .label { color: var(--muted); font-size:12px; }
.dashboard .stat .value { font-size:22px; font-weight:700; margin-top:4px; }
.dashboard .controls { margin-top:12px; display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap: wrap; }
.dashboard .controls .group { display:flex; align-items:center; gap:10px; }
.import-btn { display:inline-flex; align-items:center; gap:8px; padding:10px 14px; background: var(--input); border:1px solid var(--border); color:var(--text); border-radius:12px; cursor:pointer; }
.low-stock td { background: rgba(239,68,68,0.10); }

/* Sticky header */
thead th { position: sticky; top: 0; background: var(--card); z-index: 1; }

/* Toasts */
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 9999; }
.toast { background: var(--card); border:1px solid var(--border); padding: 10px 12px; border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.2); display:flex; align-items:center; gap:8px; }
.toast.success { border-color: #16a34a66; }
/* Skeleton loaders */
.skeleton { position: relative; overflow: hidden; background: var(--input); }
.skeleton::after { content: ""; position:absolute; inset:0; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent); transform: translateX(-100%); animation: shimmer 1.2s infinite; }
@keyframes shimmer { 100% { transform: translateX(100%); } }

.auth-center { flex:1 0 auto; display:flex; align-items:center; justify-content:center; padding:16px; }
.auth-card { width:100%; max-width:460px; }

/* Footer */
.app-footer { text-align:center; color:var(--muted); padding:12px 0 20px; border-top:1px solid var(--border); }

/* Compact density mode */
[data-density="compact"] body .card { padding:12px; }
[data-density="compact"] body .row { gap:8px; margin-bottom:8px; }
[data-density="compact"] body button { padding:8px 10px; border-radius:10px; }
[data-density="compact"] body .mini { padding:4px 6px; border-radius:6px; }
[data-density="compact"] body th, 
[data-density="compact"] body td { padding:8px 8px; }
[data-density="compact"] body .dashboard .stat { padding:10px; }
[data-density="compact"] body .dashboard .stat .value { font-size:18px; }
[data-density="compact"] body .badge { padding:1px 6px; font-size:11px; }