:root {
    --ink: #0a0d12;
    --panel: #12171f;
    --panel-alt: #1a212b;
    --line: #232b36;
    --signal: #6fe3d6;
    --signal-dim: #2f5c58;
    --static: #d1618f;
    --text: #e6e9ee;
    --text-dim: #6f7a88;
  }
  * { box-sizing: border-box; }
  html, body {
    margin: 0;
    height: 100%;
    background: var(--ink);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
  }
  body {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .card {
    width: 100%;
    max-width: 360px;
    margin: 20px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
  }
  .wordmark {
    font-family: 'JetBrains Mono', monospace;
    font-size: 22px;
    font-weight: 700;
    color: var(--signal);
    text-shadow: 0 0 12px var(--signal-dim);
    margin-bottom: 4px;
  }
  .wordmark::after { content: "_"; animation: blink 1.1s steps(1) infinite; }
  @keyframes blink { 50% { opacity: 0; } }
  .tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 24px;
  }
  label {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
  }
  input[type=text], input[type=password] {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 16px;
    border-radius: 4px;
    border: 1px solid var(--line);
    background: var(--panel-alt);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
  }
  input:focus { outline: 2px solid var(--signal); outline-offset: 1px; }
  button {
    width: 100%;
    padding: 11px;
    background: var(--signal);
    color: var(--ink);
    border: none;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
  }
  button:hover { box-shadow: 0 0 12px var(--signal); }
  .login-error {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--static);
    margin: -8px 0 16px;
  }