:root {
  --bg: #0b1220;
  --panel: #111827;
  --panel-2: #1a2336;
  --border: #243049;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-2: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); }
a { color: #93c5fd; }
.hidden { display: none !important; }

/* Login */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.18), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(34, 197, 94, 0.12), transparent 35%),
    var(--bg);
}
.login-card {
  width: min(400px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.login-card .logo { font-size: 40px; }
.login-card h1 { margin: 8px 0 4px; font-size: 1.5rem; }
.login-card label { display: block; margin: 16px 0 6px; color: var(--muted); font-size: 0.9rem; }
.login-card input, .field input, .field select, .field textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  outline: none;
}
.login-card input:focus, .field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary);
}
.hint { margin-top: 16px; color: var(--muted); font-size: 0.85rem; }
.error { color: var(--danger); min-height: 1.2em; }
.muted { color: var(--muted); }

/* Layout */
#app-view { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 6px 8px 14px; }
.brand small { display: block; color: var(--muted); }
.logo-sm { font-size: 28px; }
nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav-btn {
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  padding: 11px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.95rem;
}
.nav-btn:hover, .nav-btn.active { background: var(--panel-2); border-color: var(--border); }
.nav-btn.link { text-decoration: none; display: block; }
.main { padding: 20px 24px 40px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 18px; gap: 12px; flex-wrap: wrap;
}
.topbar h2 { margin: 0; font-size: 1.35rem; }
.topbar-right { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* Components */
.btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
}
.btn:hover { filter: brightness(1.08); }
.btn.primary { background: var(--primary); border-color: var(--primary-2); }
.btn.danger { background: rgba(239, 68, 68, 0.15); border-color: rgba(239, 68, 68, 0.4); color: #fecaca; }
.btn.success { background: rgba(34, 197, 94, 0.15); border-color: rgba(34, 197, 94, 0.4); color: #bbf7d0; }
.btn.ghost { background: transparent; }
.btn.full { width: 100%; }
.btn.sm { padding: 6px 10px; font-size: 0.85rem; }

.pill {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
  color: var(--muted);
}
.pill.ok { color: #86efac; border-color: rgba(34, 197, 94, 0.35); }
.pill.bad { color: #fca5a5; border-color: rgba(239, 68, 68, 0.35); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.card .label { color: var(--muted); font-size: 0.85rem; }
.card .value { font-size: 1.45rem; font-weight: 700; margin-top: 6px; }
.card .sub { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

.toolbar {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; align-items: center;
}
.toolbar input, .toolbar select {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  min-width: 200px;
}

.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; background: var(--panel); }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; background: var(--panel-2); position: sticky; top: 0; }
tr:hover td { background: rgba(255,255,255,0.02); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9rem; }
.badge {
  display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: 0.75rem; font-weight: 700;
}
.badge.ok { background: rgba(34,197,94,.15); color: #86efac; }
.badge.fail { background: rgba(239,68,68,.15); color: #fca5a5; }

.toast {
  position: fixed; right: 20px; top: 20px; z-index: 50;
  background: #052e16; border: 1px solid rgba(34,197,94,.4); color: #bbf7d0;
  padding: 12px 16px; border-radius: 12px; box-shadow: var(--shadow);
  max-width: 360px;
}
.toast.error { background: #450a0a; border-color: rgba(239,68,68,.4); color: #fecaca; }

dialog {
  border: none; border-radius: 16px; padding: 0; background: transparent; color: var(--text);
}
dialog::backdrop { background: rgba(0,0,0,.55); }
.modal-card {
  width: min(440px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.modal-card h3 { margin: 0 0 14px; }
.field { margin-bottom: 12px; }
.field label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 0.85rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.product-card h4 { margin: 0 0 8px; font-size: 0.98rem; }
.product-card .price { color: #93c5fd; font-weight: 700; font-size: 1.1rem; }
.product-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.85rem; margin-top: 8px; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.field textarea { width: 100%; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 12px 14px; outline: none; resize: vertical; font-family: inherit; }
.card h3 { font-size: 1.05rem; }

@media (max-width: 900px) {
  #app-view { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  nav { flex-direction: row; flex-wrap: wrap; }
  .nav-btn { flex: 1 1 auto; }
}