:root {
  color-scheme: dark;
  --bg: #081019;
  --panel: #121b28;
  --panel-2: #172233;
  --border: rgba(255,255,255,.09);
  --text: #edf4ff;
  --muted: #93a4bc;
  --accent: #8fe388;
  --accent-cool: #6ec9ff;
  --danger: #ff7b7b;
  --warning: #f0c75e;
  --ok: #8fe388;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  background:
    radial-gradient(circle at top left, rgba(143,227,136,.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(104,171,255,.14), transparent 32%),
    linear-gradient(180deg, #081019 0%, #0d1624 100%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
}
.shell {
  width: min(100%, 460px);
  padding: 28px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(18, 27, 40, .92);
  box-shadow: 0 24px 80px rgba(0,0,0,.38);
}
.shell.wide { width: min(100%, 560px); }
.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: 12px;
}
h1 {
  margin: 0 0 10px;
  font-size: 28px;
  line-height: 1.1;
  letter-spacing: -.04em;
}
h2 {
  margin: 0 0 14px;
  font-size: 20px;
  line-height: 1.15;
  letter-spacing: -.03em;
}
p { margin: 0 0 14px; color: var(--muted); line-height: 1.5; }
a { color: var(--accent-cool); text-decoration: none; }
a:hover { text-decoration: underline; }
form {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}
label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--text);
}
input[type="text"], input[type="email"], input[type="password"] {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.1);
  background: var(--panel-2);
  color: var(--text);
  padding: 13px 16px;
  font-size: 16px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
input:focus {
  border-color: rgba(143,227,136,.5);
  box-shadow: 0 0 0 3px rgba(143,227,136,.15);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 13px 22px;
  background: linear-gradient(135deg, #9ce86a 0%, #6ec9ff 100%);
  color: #071019;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  transition: opacity .15s;
  text-decoration: none;
}
.btn:hover { opacity: .9; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
}
.btn-outline:hover { border-color: var(--accent); }
.btn-danger {
  background: linear-gradient(135deg, #ff6868 0%, #ff4040 100%);
  color: #fff;
}
.btn-sm { padding: 9px 16px; font-size: 13px; }
.error { color: var(--danger); font-size: 14px; }
.success { color: var(--ok); font-size: 14px; }
.meta { font-size: 13px; color: var(--muted); }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.sep {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.badge-admin { background: rgba(143,227,136,.15); color: var(--accent); }
.badge-viewer { background: rgba(110,201,255,.12); color: var(--accent-cool); }
.badge-2fa { background: rgba(240,199,94,.12); color: var(--warning); }
.qr-wrap {
  display: flex;
  justify-content: center;
  padding: 16px;
  background: #fff;
  border-radius: 14px;
  margin: 12px 0;
}
.qr-wrap svg { width: 200px; height: 200px; }
.secret-code {
  font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  font-size: 14px;
  letter-spacing: .08em;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  word-break: break-all;
  user-select: all;
}
.reset-link {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  word-break: break-all;
  user-select: all;
}
.card {
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--panel);
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
.hidden { display: none !important; }