:root {
  --bg: #0f1014;
  --fg: #e8e6df;
  --muted: #8a8678;
  --accent: #c89b3c;
  --danger: #e26d5a;
  --ok: #6dbf6d;
  --card: #181a21;
  --line: #2a2c34;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
  min-height: 100vh;
}
body {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}
.card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2rem 1.75rem;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
h1 {
  margin: 0 0 0.25rem;
  font-size: 1.8rem;
  letter-spacing: 0.02em;
  color: var(--accent);
}
.tag {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}
.tab {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 0.6rem 0;
  cursor: pointer;
  font: inherit;
  border-bottom: 2px solid transparent;
}
.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}
.form { display: flex; flex-direction: column; gap: 0.85rem; }
.form.hidden { display: none; }
label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; color: var(--muted); }
input {
  background: #0c0d12;
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 0.6rem 0.7rem;
  font: inherit;
  border-radius: 4px;
}
input:focus { outline: none; border-color: var(--accent); }
button[type="submit"] {
  margin-top: 0.5rem;
  background: var(--accent);
  color: #1a1306;
  border: 0;
  padding: 0.7rem;
  font: inherit;
  font-weight: bold;
  border-radius: 4px;
  cursor: pointer;
}
button[type="submit"]:hover { filter: brightness(1.1); }
.msg { min-height: 1.2em; margin: 1rem 0 0; font-size: 0.85rem; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--ok); }
.foot { margin: 1.25rem 0 0; font-size: 0.75rem; color: var(--muted); text-align: center; }