:root {
    --bg: #707eaa;
    --card: #2543bb;
    --muted: #a0a6b8;
    --primary: #7e5bef;
    --primary-dark: #6938d0;
    --success: #2ecc71;
    --error: #e74c3c;
    --radius: 12px;
    --gap: 14px;
  }

  * { box-sizing: border-box; }
  html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    background: radial-gradient(circle at 20% -10%, rgba(126,90,239,.25), transparent 40%),
                radial-gradient(circle at 100% 0%, rgba(72, 216, 191,.15), transparent 40%),
                var(--bg);
    color: #fff;
  }

  .container {
    max-width: 550px;
    margin: 60px auto;
    padding: 20px;
  }

  .card {
    background: linear-gradient(180deg, rgba(20,26,49,.98), rgba(20,26,49,.88));
    border: 1px solid rgba(255,255,255,.08);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
  }

  h1 {
    margin: 0 0 6px;
    font-size: 28px;
    letter-spacing: .4px;
  }

  p.subtitle {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 14px;
  }

  form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
  }

  label {
    display: block;
    font-size: 13px;
    color: #e8eaf6;
    margin-bottom: 6px;
  }


  input[type="email"],
  input[type="password"],
  input[type="date"],
  textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.25);
    background: rgba(255,255,255,.04);
    color: #fff;
    outline: none;
    transition: border-color .2s, background .2s;
  }

  input::placeholder { color: #9aa8c7; }

  input:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,.08);
  }

  .row {
      display: flex;
      flex-direction: column;
    /* display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap); */
  }

  .error {
    color: var(--error);
    font-size: 12px;
    height: 14px;
  }

  .success {
    color: var(--success);
    font-size: 14px;
  }

  button {
    padding: 12px 16px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: transform .05s ease-in-out;
  }

  button:active { transform: translateY(1px); }

  .server-msg {
    margin-top: 6px;
    min-height: 16px;
    font-size: 13px;
  }

  @media (max-width: 600px) {
    .row { grid-template-columns: 1fr; }
  }