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

    :root {
      --bg: #0a0a0a;
      --surface: #111;
      --border: #9bb096;
      --text: #c8c8c8;
      --dim: #a3b89e;
      --accent: #a8ff78;
      --accent-dim: rgba(168,255,120,0.06);
      --font-mono: 'Share Tech Mono', monospace;
      --font-serif: 'Cormorant Garamond', serif;
    }

    html, body {
      height: 100%;
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-mono);
      overflow: hidden;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background: repeating-linear-gradient(
        0deg, transparent, transparent 2px,
        rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px
      );
      pointer-events: none;
      z-index: 100;
    }

    .grid-bg {
      position: fixed;
      inset: 0;
      background-image:
        linear-gradient(rgba(168,255,120,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168,255,120,0.025) 1px, transparent 1px);
      background-size: 60px 60px;
      z-index: 0;
    }

    .terminal {
      position: relative;
      z-index: 10;
      height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 2rem;
    }

    .container {
      width: 100%;
      max-width: 460px;
      animation: fadeIn 1.2s ease both;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(12px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .back {
      display: inline-block;
      font-size: 0.6rem;
      letter-spacing: 0.15em;
      color: var(--dim);
      text-decoration: none;
      margin-bottom: 2.5rem;
      transition: color 0.2s;
      cursor: pointer;
    }

    .back:hover { color: var(--text); }
    .back::before { content: '← '; }

    .header { margin-bottom: 2.5rem; }

    .header .prompt {
      color: var(--dim);
      font-size: 0.65rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      margin-bottom: 0.75rem;
    }

    .header h1 {
      font-family: var(--font-serif);
      font-weight: 300;
      font-size: 2.2rem;
      color: #e8e8e8;
      line-height: 1.1;
    }

    .header h1 em {
      font-style: italic;
      color: var(--accent);
    }

    .header .sub {
      margin-top: 0.8rem;
      font-size: 0.68rem;
      color: var(--dim);
      letter-spacing: 0.05em;
      line-height: 1.6;
    }

    .divider {
      width: 40px;
      height: 1px;
      background: var(--border);
      margin: 1.75rem 0;
    }

    .form-group { margin-bottom: 1.1rem; }

    label {
      display: block;
      font-size: 0.72rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 0.45rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"] {
      width: 100%;
      background: var(--surface);
      border: 1px solid var(--border);
      color: var(--text);
      font-family: var(--font-mono);
      font-size: 0.88rem;
      padding: 0.7rem 1rem;
      outline: none;
      transition: border-color 0.2s, background 0.2s;
      -webkit-appearance: none;
      border-radius: 0;
    }

    input:focus {
      border-color: var(--accent);
      background: var(--accent-dim);
    }

    input::placeholder { color: #9bb096; }

    .btn {
      width: 100%;
      margin-top: 1.5rem;
      padding: 0.8rem 1rem;
      background: transparent;
      border: 1px solid var(--accent);
      color: var(--accent);
      font-family: var(--font-mono);
      font-size: 0.72rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      cursor: pointer;
      transition: background 0.2s, color 0.2s;
    }

    .btn:hover {
      background: var(--accent);
      color: #0a0a0a;
    }

    .btn:disabled {
      opacity: 0.4;
      cursor: not-allowed;
    }

    .btn::after {
      content: '_';
      animation: blink 1s step-end infinite;
      margin-left: 4px;
    }

    @keyframes blink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0; }
    }

    .toggle {
      margin-top: 1.4rem;
      font-size: 0.65rem;
      color: var(--dim);
      text-align: center;
    }

    .toggle a {
      color: var(--text);
      text-decoration: none;
      border-bottom: 1px solid var(--border);
      cursor: pointer;
      transition: color 0.2s, border-color 0.2s;
    }

    .toggle a:hover {
      color: var(--accent);
      border-color: var(--accent);
    }

    .status {
      margin-top: 1rem;
      font-size: 0.68rem;
      min-height: 1rem;
      color: var(--accent);
      text-align: center;
      letter-spacing: 0.05em;
      opacity: 0;
      transition: opacity 0.3s;
      line-height: 1.6;
    }

    .status.visible { opacity: 1; }
    .status.error { color: #ff6b6b; }

    .note {
      margin-top: 2rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border);
      font-size: 0.6rem;
      color: var(--dim);
      letter-spacing: 0.08em;
      line-height: 1.8;
    }