*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c2128;
  --border: #30363d;
  --border-light: #484f58;
  --text: #e6edf3;
  --muted: #7d8590;
  --accent: #58a6ff;
  --radius: 8px;
}

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.5 'Inter', 'Segoe UI', system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 36px;
  width: 100%;
  max-width: 380px;
}

.auth-logo {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

.auth-logo span { color: var(--accent); }

h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text);
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  padding: 8px 10px;
  margin-bottom: 16px;
  outline: none;
  transition: border-color .15s;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--accent);
}

button[type="submit"],
button[type="button"] {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #0d1117;
  font-size: 13px;
  font-weight: 600;
  padding: 9px;
  cursor: pointer;
  transition: opacity .15s;
  margin-top: 4px;
}

button[type="submit"]:hover,
button[type="button"]:hover { opacity: .85; }

.btn-secondary {
  background: var(--panel2) !important;
  border: 1px solid var(--border) !important;
  color: var(--muted) !important;
  font-weight: 400 !important;
  margin-top: 10px !important;
}

.btn-secondary:hover { background: var(--border) !important; }

.auth-error { color: #f85149; font-size: 12px; margin-bottom: 12px; }
.auth-success { color: #3fb950; font-size: 12px; margin-bottom: 12px; }

code {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 12px;
  color: var(--accent);
}

p { font-size: 12px; color: var(--muted); margin-bottom: 14px; line-height: 1.6; }