:root {
  --primary: #7C3AED;
  --primary-dark: #5B21B6;
  --primary-light: #C4B5FD;
  --success: #16A34A;
  --success-light: #DCFCE7;
  --danger: #DC2626;
  --danger-light: #FEE2E2;
  --warning: #D97706;
  --warning-light: #FEF3C7;
  --bg: #F5F3FF;
  --card: #FFFFFF;
  --text: #1F2937;
  --muted: #6B7280;
  --border: #E5E7EB;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ===== LOGIN ===== */
.login-wrap {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  min-height: 100vh; padding: 24px; background: linear-gradient(135deg,#7C3AED,#6D28D9);
}
.login-card {
  background: var(--card); border-radius: 20px; padding: 36px 28px; width: 100%; max-width: 380px;
  box-shadow: 0 20px 40px rgba(0,0,0,.25); text-align: center;
}
.login-logo { width: 80px; height: 80px; border-radius: 20px; background: var(--primary); padding: 10px; margin: 0 auto 12px; }
.login-logo img { width: 100%; height: 100%; }
.login-card h1 { font-size: 24px; color: var(--primary); }
.login-card .sub { color: var(--muted); font-size: 14px; margin: 4px 0 24px; }
.field { text-align:left; margin-bottom: 14px; }
.field label { display:block; font-size: 13px; font-weight:600; margin-bottom:6px; color: var(--text); }
.field input, .field select {
  width:100%; padding:12px 14px; border:1.5px solid var(--border); border-radius:10px;
  font-size:15px; background:#fff; transition:.2s;
}
.field input:focus, .field select:focus { outline:none; border-color: var(--primary); box-shadow:0 0 0 3px var(--primary-light);}
.btn { width:100%; padding:13px; border:none; border-radius:10px; font-size:16px; font-weight:700; cursor:pointer; background:var(--primary); color:#fff; transition:.2s;}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity:.6; cursor:not-allowed; }
.btn-secondary { background: var(--primary-light); color: var(--primary-dark); }
.btn-success { background: var(--success); }
.btn-danger { background: var(--danger); }
.login-error { color: var(--danger); font-size:13px; margin-top:10px; min-height:18px; }

/* ===== APP SHELL ===== */
.app { display:none; }
.app.active { display:block; }
.appbar {
  position: sticky; top:0; z-index:100; background:var(--primary); color:#fff;
  padding:14px 16px; display:flex; align-items:center; gap:12px;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.appbar .logo-sm { width:36px; height:36px; border-radius:10px; background:#fff; padding:5px; }
.appbar .logo-sm img { width:100%; height:100%; }
.appbar .title { flex:1; }
.appbar .title h2 { font-size:17px; }
.appbar .title .role { font-size:12px; opacity:.85; }
.appbar .user { text-align:right; font-size:12px; opacity:.95; }
.appbar .user .name { font-weight:700; font-size:13px; }

/* ===== NAVIGATION ===== */
.nav {
  display:flex; overflow-x:auto; background:#fff; border-bottom:1px solid var(--border);
  position:sticky; top:64px; z-index:90; padding:6px;
}
.nav button {
  flex-shrink:0; border:none; background:none; padding:10px 16px; font-size:14px; font-weight:600;
  color:var(--muted); cursor:pointer; border-radius:10px; white-space:nowrap; transition:.2s;
}
.nav button.active { background:var(--primary); color:#fff; }
.nav button:hover:not(.active) { background:var(--bg); }

/* ===== CONTENT ===== */
.content { padding:16px; max-width:720px; margin:0 auto; padding-bottom:90px; }
.panel { display:none; }
.panel.active { display:block; }
.page-title { font-size:18px; font-weight:800; margin-bottom:4px; }
.page-sub { color:var(--muted); font-size:13px; margin-bottom:16px; }

/* ===== CARDS & STATS ===== */
.grid { display:grid; gap:12px; }
.grid-2 { grid-template-columns:1fr 1fr; }
.grid-4 { grid-template-columns:repeat(4,1fr); }
.grid-3 { grid-template-columns:repeat(3,1fr); }
.card { background:var(--card); border-radius:14px; padding:16px; box-shadow:0 1px 3px rgba(0,0,0,.08); }
.card h3 { font-size:14px; color:var(--muted); font-weight:600; }
.card .big { font-size:22px; font-weight:800; margin-top:4px; }
.card .big.primary { color:var(--primary); }
.card .big.success { color:var(--success); }
.card .big.danger { color:var(--danger); }
.card .big.warning { color:var(--warning); }

/* ===== TABLE ===== */
.table-card { margin-top:16px; }
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; font-size:14px; }
th, td { padding:10px 12px; text-align:left; border-bottom:1px solid var(--border); }
th { background:var(--bg); font-size:12px; text-transform:uppercase; color:var(--muted); position:sticky; top:0;}
tr:hover td { background:#FAFAFF; }

/* ===== BADGES ===== */
.badge { display:inline-block; padding:3px 8px; border-radius:999px; font-size:11px; font-weight:700; }
.badge.ok { background:var(--success-light); color:var(--success); }
.badge.low { background:var(--warning-light); color:var(--warning); }
.badge.out { background:var(--danger-light); color:var(--danger); }

/* ===== FORMS / ACTIONS ===== */
.actions { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.actions .btn { width:auto; padding:11px 20px; font-size:14px; }
.input-sm { padding:8px 12px !important; }
.row-actions button { margin-right:6px; }

/* ===== POS / KASIR ===== */
.pos-products { display:grid; grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); gap:10px; margin-top:14px; }
.pos-item { background:var(--card); border:1.5px solid var(--border); border-radius:12px; padding:12px; cursor:pointer; transition:.15s; }
.pos-item:hover { border-color:var(--primary); box-shadow:0 2px 6px rgba(124,58,237,.15); }
.pos-item .p-name { font-size:13px; font-weight:700; }
.pos-item .p-price { color:var(--primary); font-weight:800; font-size:14px; margin-top:4px; }
.pos-item .p-stock { font-size:11px; color:var(--muted); }
.cart { margin-top:16px; }
.cart-item { display:flex; justify-content:space-between; align-items:center; padding:10px 0; border-bottom:1px dashed var(--border); }
.cart-item .qty-ctl { display:flex; align-items:center; gap:8px; }
.qty-ctl button { width:28px; height:28px; border-radius:8px; border:1px solid var(--border); background:#fff; cursor:pointer; font-weight:700; }
.qty-ctl button:hover { background:var(--bg); }
.cart-total { display:flex; justify-content:space-between; font-size:18px; font-weight:800; margin-top:12px; }
.cart-total .val { color:var(--success); }

/* ===== MODAL ===== */
.modal-bg { display:none; position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:200; align-items:flex-end; justify-content:center; }
.modal-bg.show { display:flex; }
.modal { background:#fff; width:100%; max-width:480px; border-radius:20px 20px 0 0; padding:20px; max-height:85vh; overflow-y:auto; }
.modal h3 { margin-bottom:14px; }
@media(min-width:600px){ .modal-bg { align-items:center; } .modal{ border-radius:20px; } }

/* ===== MISC ===== */
.search { width:100%; padding:11px 14px; border:1.5px solid var(--border); border-radius:10px; font-size:15px; }
.search:focus { outline:none; border-color:var(--primary); }
.empty { text-align:center; color:var(--muted); padding:30px 0; font-size:14px; }
.divider { border:none; border-top:1px solid var(--border); margin:16px 0; }
.toast {
  position:fixed; bottom:20px; left:50%; transform:translateX(-50%); background:#111827; color:#fff;
  padding:12px 20px; border-radius:10px; font-size:14px; z-index:300; opacity:0; transition:.3s; pointer-events:none;
}
.toast.show { opacity:1; }
.logout-btn { background:rgba(255,255,255,.15); }

/* bottom nav for kasir */
.bottomnav { display:flex; position:fixed; bottom:0; left:0; right:0; background:#fff; border-top:1px solid var(--border); z-index:150; }
.bottomnav button { flex:1; padding:10px 4px; border:none; background:none; font-size:11px; color:var(--muted); cursor:pointer; }
.bottomnav button.active { color:var(--primary); font-weight:700; }

@media(max-width:420px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr);} }