.registration-page {
    min-height: 100vh;
    background: #f4f7fa url("../images/background_lg.svg") center / min(92vw, 920px) auto no-repeat fixed;
    padding: 40px 20px;
    font-family: Arial, sans-serif;
}
.registration-main { width: 100%; max-width: 600px; margin: 0 auto; }
.registration-logo { margin: 0 auto 24px; text-align: center; }
.registration-logo img { display: block; width: 180px; max-width: 100%; height: auto; margin: auto; }
.registration-heading { text-align: center; margin-bottom: 24px; }
.registration-heading h1 { margin: 0; font-size: 28px; line-height: 1.25; font-weight: 600; }
.registration-heading p { margin: 12px 0 0; color: #52606b; line-height: 1.5; }
.registration-choices { max-width: 420px; margin: auto; text-align: center; }
.registration-choices p { margin-bottom: 24px; color: #52606b; }
.registration-page .auth-btn { display: flex; align-items: center; justify-content: center; min-height: 46px; height: auto; padding: 12px 18px; font-size: 14px; line-height: 1.4; }
.registration-choices .auth-btn + .auth-btn { margin-top: 12px; }
.registration-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 20px; }
.registration-wide, .registration-submit { grid-column: 1 / -1; }
.registration-page .registration-field label { display: block; margin: 0 0 6px; font-size: 14px; font-weight: 600; }
.registration-field .form-control { height: 44px; border: 1px solid #d9dfe6; border-radius: 8px; background: #fff; font-size: 16px; }
.registration-field .form-control:focus { border-color: #e7501e; box-shadow: 0 0 0 3px rgba(231,80,30,.15); }
.registration-existing { margin-top: 32px; padding-top: 24px; border-top: 1px solid #d9dfe6; }
.registration-existing h2 { font-size: 20px; font-weight: 600; }
.registration-existing p { color: #52606b; line-height: 1.5; }
.registration-existing .registration-field { margin-bottom: 16px; }
.registration-submit { width: 100%; margin-top: 4px; }
.registration-access { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 24px; margin-top: 28px; }
.registration-access a { color: #c94216; text-decoration: underline; font-size: 14px; }
.registration-access a:hover { color: #a93612; }
.registration-page a:focus-visible, .registration-page .btn:focus-visible { outline: 3px solid #e7501e; outline-offset: 3px; }
@media (max-width: 575px) {
    .registration-page { padding: 28px 20px; }
    .registration-logo img { width: 150px; }
    .registration-heading h1 { font-size: 24px; }
    .registration-fields { grid-template-columns: minmax(0, 1fr); gap: 16px; }
}