:root {
  color-scheme: dark;
  --bg: #111315;
  --surface: #1b1f22;
  --line: #394047;
  --text: #f2f4f5;
  --muted: #a3adb5;
  --accent: #45c7a2;
  --accent-hover: #57d7b2;
  --danger: #ff9da2;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  color: var(--text);
  background: var(--bg);
  font: 15px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

.topbar {
  min-height: 64px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img { display: block; }
.access-state, footer { color: var(--muted); }

main {
  width: min(100% - 28px, 420px);
  margin: 0 auto;
  display: grid;
  align-items: center;
  padding: 48px 0;
}

.login-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 24px;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: 0;
}

form { display: grid; gap: 16px; }

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--text);
  background: #14171a;
  font: inherit;
  letter-spacing: 0;
}

input:focus-visible,
button:focus-visible,
.brand:focus-visible {
  outline: 2px solid #8bc0ff;
  outline-offset: 2px;
}

button {
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid var(--accent);
  border-radius: 5px;
  color: #07130f;
  background: var(--accent);
  font: inherit;
  font-weight: 750;
  letter-spacing: 0;
  cursor: pointer;
}

button:hover { background: var(--accent-hover); }
button:disabled { cursor: wait; opacity: .65; }
.form-error { margin: -4px 0 0; color: var(--danger); font-size: 13px; }
[hidden] { display: none !important; }

footer {
  min-height: 58px;
  padding: 18px 28px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 12px;
}

@media (max-width: 520px) {
  .topbar { min-height: 58px; padding: 0 18px; }
  .access-state { display: none; }
  main { padding: 28px 0; }
  .login-panel { padding: 22px 18px; }
}