:root {
  --bg: #f2f5f8;
  --card: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --border: #e2e8f0;
  --primary: #3b82f6;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); padding-bottom: 80px; }

/* AUTH */
.auth-screen { display: flex; flex-direction: column; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; background: var(--bg); }
.auth-box { background: var(--card); padding: 40px 32px; border-radius: 24px; box-shadow: 0 10px 40px rgba(0,0,0,0.06); width: 100%; max-width: 420px; text-align: center; }
.auth-logo { font-size: 48px; margin-bottom: 8px; }
.auth-box h1 { margin: 0; font-size: 24px; font-weight: 800; color: var(--text); }
.auth-subtitle { color: var(--text-light); font-size: 14px; margin: 4px 0 24px 0; }
.auth-box input { width: 100%; padding: 14px; margin-bottom: 14px; border: 1.5px solid var(--border); border-radius: 12px; font-size: 15px; background: var(--bg); color: var(--text); }
.auth-box input:focus { outline: none; border-color: var(--primary); background: var(--card); }
.btn-login { width: 100%; padding: 15px; border: none; border-radius: 12px; font-size: 16px; font-weight: 700; cursor: pointer; background: var(--primary); color: #fff; margin-top: 8px; }
.btn-login:active { transform: scale(0.98); }
.auth-error { color: var(--danger); font-size: 13px; min-height: 20px; margin-bottom: 8px; font-weight: 500; }
.auth-toggle { margin-top: 16px; font-size: 14px; }
.auth-toggle a { color: var(--primary); cursor: pointer; font-weight: 600; text-decoration: none; }

/* APP */
.app-screen { display: none; }
.app-header { background: var(--card); padding: 14px 20px; position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 10px rgba(0,0,0,0.05); display: flex; justify-content: space-between; align-items: center; }
.header-left h1 { margin: 0; font-size: 17px; font-weight: 800; }
.header-datetime { font-size: 11px; color: var(--text-light); margin-top: 2px; }
.header-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.header-user { font-size: 12px; font-weight: 600; color: var(--text-light); background: var(--bg); padding: 4px 10px; border-radius: 20px; }
.btn-logout { background: none; border: none; color: var(--danger); font-size: 12px; font-weight: 600; cursor: pointer; }

.container { padding: 16px; max-width: 800px; margin: 0 auto; padding-bottom: 100px; }
.status-bar { font-size: 13px; font-weight: 600; color: var(--text-light); text-align: center; padding: 10px; background: var(--card); border-radius: 12px; margin-bottom: 16px; border: 1px solid var(--border); }
.status-bar.online { color: var(--success); background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.3); }
.status-bar.error { color: var(--danger); background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); }

.stats { display: flex; gap: 12px; margin-bottom: 16px; }
.stat { flex: 1; background: var(--card); padding: 16px 10px; border-radius: 16px; text-align: center; border: 1px solid var(--border); }
.stat .num { font-size: 24px; font-weight: 800; }
.stat .lbl { font-size: 11px; color: var(--text-light); text-transform: uppercase; font-weight: 600; margin-top: 4px; }

.search-bar { width: 100%; padding: 14px 18px; border: 1.5px solid var(--border); border-radius: 14px; font-size: 15px; margin-bottom: 16px; background: var(--card); }
.search-bar:focus { outline: none; border-color: var(--primary); }

/* CARDS */
.card { background: var(--card); border-radius: 16px; padding: 16px; margin-bottom: 14px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); border: 1px solid var(--border); border-left: 5px solid var(--primary); }
.card.urgent { border-left-color: var(--danger); background: rgba(239,68,68,0.03); }
.card.warning { border-left-color: var(--warning); background: rgba(245,158,11,0.03); }
.card.ok { border-left-color: var(--success); }
.card h3 { margin: 0 0 8px 0; font-size: 17px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.card .meta { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.card .meta strong { color: var(--text); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge.red { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge.orange { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge.green { background: rgba(16,185,129,0.15); color: var(--success); }
.badge.code { background: var(--primary); color: #fff; font-family: monospace; }

.actions { display: flex; gap: 8px; margin-top: 12px; }
button, .btn { padding: 11px 16px; border: none; border-radius: 12px; font-size: 14px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; }
button:active, .btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; flex: 1; }
.btn-danger { background: var(--danger); color: #fff; flex: 1; }
.btn-success { background: var(--success); color: #fff; flex: 1; }
.btn-secondary { background: var(--border); color: var(--text); flex: 1; }

/* FAB */
.fab { position: fixed; bottom: 24px; right: 24px; width: 62px; height: 62px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 32px; border: none; box-shadow: 0 6px 20px rgba(59,130,246,0.4); cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 150; }
.fab:active { transform: scale(0.9); }

/* MODAL */
.modal { display: none; position: fixed; inset: 0; background: rgba(15,23,42,0.6); z-index: 200; align-items: flex-end; justify-content: center; backdrop-filter: blur(2px); }
.modal.show { display: flex; }
.modal-content { background: var(--card); width: 100%; max-width: 600px; max-height: 92vh; overflow-y: auto; border-radius: 24px 24px 0 0; padding: 24px; padding-bottom: 100px; animation: slideUp 0.3s ease; }
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.modal-content h2 { margin: 0 0 20px 0; font-size: 20px; font-weight: 800; text-align: center; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-light); }
.form-group input, .form-group textarea { width: 100%; padding: 13px; border: 1.5px solid var(--border); border-radius: 12px; font-size: 15px; font-family: inherit; background: var(--bg); color: var(--text); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); background: var(--card); }

.qr-container { text-align: center; padding: 20px; }
.qr-container canvas, .qr-container img { max-width: 100%; border-radius: 12px; background: #fff; padding: 10px; }

.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--card); padding: 12px 24px; border-radius: 30px; font-size: 14px; font-weight: 600; z-index: 300; opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.toast.show { opacity: 1; }

.empty { text-align: center; padding: 60px 20px; color: var(--text-light); }
.empty .big { font-size: 60px; margin-bottom: 12px; }

@media print {
  body * { visibility: hidden; }
  #modal-qr, #modal-qr * { visibility: visible; }
  #modal-qr { position: absolute; left: 0; top: 0; width: 100%; background: #fff; display: block !important; }
  .actions { display: none !important; }
}