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

  :root {
    --ink: #1a1714;
    --paper: #f5f0e8;
    --accent: #c4622d;
    --muted: #8c8070;
    --border: #d6cfc3;
    --field-bg: #ece7dd;
  }

  html, body {
    height: 100%;
    background: var(--paper);
    color: var(--ink);
    font-family: 'Space Mono', monospace;
    font-size: 13px;
  }

  body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
  }

  /* Grain overlay */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
  }

  .container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    animation: rise 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  @keyframes rise {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  header {
    margin-bottom: 40px;
  }

  .back {
    display: inline-block;
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
    transition: color 0.2s;
  }
  .back:hover { color: var(--ink); }

  .tag {
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.08em;
    margin-bottom: 10px;
  }

  h1 {
    font-family: 'Fraunces', serif;
    font-weight: 300;
    font-size: clamp(36px, 8vw, 52px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--ink);
  }

  h1 span {
    font-style: italic;
    color: var(--accent);
  }

  .header-sub {
    margin-top: 10px;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.06em;
  }

  /* Rule */
  .rule {
    width: 100%;
    height: 1px;
    background: var(--border);
    margin: 32px 0;
  }

  /* Form */
  .form-group {
    margin-bottom: 20px;
  }

  label {
    display: block;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 7px;
  }

  input[type="text"],
  input[type="password"] {
    width: 100%;
    padding: 11px 14px;
    background: var(--field-bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    font-family: 'Space Mono', monospace;
    font-size: 13px;
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s, background 0.2s;
    -webkit-appearance: none;
  }

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

  input::placeholder { color: var(--muted); opacity: 0.7; }

  .form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 28px;
    gap: 16px;
  }

  .btn-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--ink);
    color: var(--paper);
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: none;
    padding: 12px 24px;
    cursor: pointer;
    border-radius: 2px;
    transition: background 0.2s, transform 0.15s;
  }

  .btn-login:hover {
    background: var(--accent);
    transform: translateY(-1px);
  }
  .btn-login:active { transform: translateY(0); }

  .btn-login svg {
    transition: transform 0.2s;
  }
  .btn-login:hover svg { transform: translateX(3px); }

  .forgot {
    font-size: 11px;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.03em;
    border-bottom: 1px solid transparent;
    transition: color 0.2s, border-color 0.2s;
  }
  .forgot:hover { color: var(--ink); border-color: var(--ink); }

  footer {
    margin-top: 48px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-top: 1px solid var(--border);
    padding-top: 16px;
    animation: rise 0.6s 0.15s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  footer a {
    font-size: 10px;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: color 0.2s;
  }
  footer a:hover { color: var(--accent); }

  .footer-copy {
    font-size: 10px;
    color: var(--border);
    letter-spacing: 0.04em;
  }

  /* Decorative corner mark */
  .corner-mark {
    position: fixed;
    bottom: 24px;
    right: 28px;
    font-family: 'Fraunces', serif;
    font-style: italic;
    font-size: 11px;
    color: var(--border);
    letter-spacing: 0.06em;
    z-index: 1;
  }