:root {
  --bg: #100a17;
  --bg-panel: #1a1223;
  --bg-elevated: #241a30;
  --border: #34234a;
  --accent: #7c3aed;
  --accent-hover: #9256f5;
  --text: #ffffff;
  --text-muted: #c9c9cc;
  --text-faint: #949499;
  --danger: #ff6b6b;
  --ok: #2ecc71;
}
* { box-sizing: border-box; }
html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: inherit; }
button, input, textarea { font-family: inherit; }

.center-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
}
.login-card {
  width: 100%; max-width: 360px; background: var(--bg-panel);
  border: 1px solid var(--border); border-radius: 16px; padding: 32px;
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.login-card h1 { font-size: 22px; margin: 0 0 22px; text-align: center; }

.field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; color: var(--text-muted); }
input, textarea {
  width: 100%; box-sizing: border-box; padding: 11px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text);
  font-size: 14px; transition: border-color .15s;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); }

.btn-primary {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 11px 22px; border-radius: 8px; font-weight: 600; font-size: 14px;
  border: none; cursor: pointer; transition: background .15s, transform .15s;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-ghost {
  display: inline-block; background: transparent; color: var(--text);
  padding: 8px 16px; border-radius: 8px; font-weight: 600; font-size: 13px;
  border: 1px solid var(--border); cursor: pointer; transition: border-color .15s, background .15s;
}
.btn-ghost:hover { border-color: var(--accent-hover); background: rgba(124,58,237,.08); }
.btn-danger {
  display: inline-block; background: transparent; color: var(--danger);
  padding: 6px 12px; border-radius: 8px; font-weight: 600; font-size: 13px;
  border: 1px solid rgba(255,107,107,.4); cursor: pointer;
}
.btn-danger:hover { background: rgba(255,107,107,.1); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

.form-status { min-height: 18px; font-size: 13px; margin-top: 10px; }
.form-status.ok { color: var(--ok); }
.form-status.error { color: var(--danger); }

.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(16,10,23,.9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 700; }

.tabs {
  display: flex; gap: 6px; padding: 16px 24px 0; flex-wrap: wrap;
}
.tab-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
  padding: 9px 16px; border-radius: 999px; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

main { max-width: 1000px; margin: 0 auto; padding: 24px; }
.view { display: none; }
.view.active { display: block; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.stat-card {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px; text-align: center;
}
.stat-card .value { font-size: 30px; font-weight: 800; color: var(--accent-hover); }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

.panel {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px; margin-top: 20px;
}
.panel h2 { margin: 0 0 14px; font-size: 16px; }

.row {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--bg-elevated); border-radius: 10px; padding: 12px 14px; margin-bottom: 8px;
}
.row-info { flex: 1; min-width: 0; }
.row-title { font-weight: 600; font-size: 14px; }
.row-sub { color: var(--text-muted); font-size: 13px; margin-top: 2px; word-break: break-word; }
.row-meta { color: var(--text-faint); font-size: 12px; margin-top: 4px; }
.row-actions { display: flex; gap: 6px; flex-shrink: 0; }
.row.handled { opacity: .55; }
.badge {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px;
  border-radius: 999px; background: rgba(124,58,237,.18); color: var(--accent-hover);
  margin-left: 8px;
}
.empty { color: var(--text-faint); font-size: 14px; padding: 20px 0; text-align: center; }

.product-form { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.product-form input { flex: 1; min-width: 140px; }