:root {
  --bg: #0f172a;
  --card: #1e293b;
  --card-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #0ea5e9;
  --accent-2: #38bdf8;
  --good: #34d399;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brand-login {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}
.brand-login .logo { width: 40px; height: 40px; flex-shrink: 0; }
.brand-login h1 { font-size: 17px; margin: 0; font-weight: 600; color: #fff; }
.brand-sub { font-size: 12px; color: var(--muted); margin: 2px 0 0; }

.login-hint { font-size: 13px; color: var(--muted); margin: 0; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 13px; color: var(--muted); }
.field input {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: #fff;
  font-size: 14px;
}
.field input:focus { outline: none; border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  margin-top: 4px;
}
.btn-primary:hover { background: var(--accent-2); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }

.login-error { color: #f87171; font-size: 13px; margin: 0; }