:root {
  --bg: #0f172a;
  --card: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --error: #f87171;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--card);
  border-bottom: 1px solid #334155;
}

.brand { font-weight: 600; letter-spacing: 0.02em; margin-right: auto; }

.nav { display: flex; gap: 1rem; margin-right: 1rem; }
.nav a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.nav a:hover { color: var(--text); }

.qr {
  display: block;
  width: 200px;
  height: 200px;
  image-rendering: pixelated;
  background: #fff;
  padding: 8px;
  border-radius: 8px;
}

.secret { font-size: 1.1rem; letter-spacing: 0.1em; user-select: all; }

.container {
  max-width: 880px;
  margin: 2rem auto;
  padding: 0 1.25rem;
}

h1 { font-size: 1.5rem; }

.notice {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.4);
  border-radius: 8px;
  color: var(--muted);
}

.login-card {
  max-width: 360px;
  margin: 4rem auto;
  padding: 2rem;
  background: var(--card);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.login-card h1 { margin-top: 0; }

label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #0b1220;
  color: var(--text);
  font-size: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn-primary { width: 100%; background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid #334155;
}
.btn-ghost:hover { color: var(--text); }

.logout-form { margin: 0; }

.error {
  color: var(--error);
  font-size: 0.9rem;
}

.field-error {
  display: block;
  margin-top: 0.3rem;
  color: var(--error);
  font-size: 0.8rem;
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 400;
}

.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }

/* Karten-Formular */
.card {
  background: var(--card);
  padding: 1.5rem;
  border-radius: 12px;
  max-width: 480px;
}

select,
input[type="number"] {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #0b1220;
  color: var(--text);
  font-size: 1rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-inline { width: auto; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.85rem; }

.btn-danger { background: transparent; color: var(--error); border: 1px solid var(--error); }
.btn-danger:hover { background: rgba(248, 113, 113, 0.12); }

/* Übersicht */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pc-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.pc-table th,
.pc-table td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid #334155;
  font-size: 0.92rem;
}

.pc-table th { color: var(--muted); font-weight: 500; }

.actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.actions form { margin: 0; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
}
.badge-on { background: rgba(34, 197, 94, 0.18); color: #4ade80; }
.badge-off { background: rgba(148, 163, 184, 0.18); color: var(--muted); }
.badge-unknown { background: rgba(234, 179, 8, 0.18); color: #facc15; }

/* Toast */
.toast-area { min-height: 0; margin-top: 0.75rem; }
.toast {
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
}
.toast-ok { background: rgba(34, 197, 94, 0.15); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.4); }
.toast-err { background: rgba(248, 113, 113, 0.15); color: var(--error); border: 1px solid rgba(248, 113, 113, 0.4); }