.auth-section {
    width: 100%;
    max-width: 1080px;
    border-radius: 36px;
    overflow: hidden;
    box-shadow: 0 32px 80px rgba(5, 7, 16, 0.35);
    background: #2a233d;
}

.auth-card {
    display: grid;
    grid-template-columns: minmax(300px, 1fr) minmax(360px, 1fr);
    min-height: 520px;
    background: linear-gradient(160deg, #2f2647 0%, #1d162b 55%, #151024 100%);
    color: #f3f4ff;
}

.auth-card[data-theme="login"] .auth-card__visual {
    background-position: center;
}

.auth-card[data-theme="register"] .auth-card__visual {
    background-position: center right;
}

.auth-card__visual {
    position: relative;
    padding: 32px;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    isolation: isolate;
}

.auth-card__visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(19, 16, 25, 0.45) 0%, rgba(19, 16, 25, 0.65) 55%, rgba(19, 16, 25, 0.85) 100%);
    z-index: -1;
}

.auth-card__logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.32em;
}

.auth-card__visual-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.auth-card__back-link {
    padding: 10px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    color: #f3f4ff;
    font-size: 14px;
    line-height: 1;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.2s ease;
}

.auth-card__back-link:hover {
    background: rgba(255, 255, 255, 0.16);
}

.auth-card__visual-body {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.auth-card__tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
}

.auth-card__visual-body h3 {
    font-size: 26px;
    font-weight: 600;
    line-height: 1.3;
    color: #ffffff;
}

.auth-card__visual-body p {
    margin: 0;
    color: rgba(226, 228, 255, 0.82);
    font-size: 15px;
    line-height: 1.6;
}

.auth-card__dots {
    display: inline-flex;
    gap: 6px;
    margin-top: 12px;
}

.auth-card__dots span {
    display: block;
    width: 28px;
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.28);
}

.auth-card__dots .is-active {
    background: #a78bfa;
}

.auth-card__form {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-card__form-header h1 {
    font-size: 34px;
    font-weight: 600;
    margin-bottom: 12px;
}

.auth-card__form-header p {
    color: rgba(232, 233, 254, 0.72);
    font-size: 15px;
}

.auth-card__form-header a {
    color: #ad9bff;
    font-weight: 600;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 28px;
}

.auth-form__field {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.auth-form__field--split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.auth-form__field input {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(158, 140, 255, 0.35);
    background: rgba(51, 43, 75, 0.85);
    color: #f7f7ff;
    padding: 14px 18px;
    font-size: 15px;
    transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.auth-form__field input::placeholder {
    color: rgba(217, 215, 255, 0.58);
}

.auth-form__field input:focus {
    outline: none;
    border-color: #b79cff;
    background: rgba(59, 51, 88, 0.95);
    box-shadow: 0 0 0 4px rgba(116, 98, 223, 0.25);
}

.auth-form__field .toggle-password {
    position: absolute;
    top: 50%;
    right: 18px;
    transform: translateY(-50%);
    color: rgba(217, 215, 255, 0.7);
    cursor: pointer;
}

.auth-form__field small[data-error] {
    font-size: 12px;
    color: #fda4af;
}

.auth-form__extras {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.auth-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(230, 232, 255, 0.8);
}

.auth-checkbox input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 6px;
    border: 1px solid rgba(173, 155, 255, 0.65);
    background: transparent;
    position: relative;
    cursor: pointer;
}

.auth-checkbox input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #ad9bff 0%, #7c5cff 100%);
    border-color: transparent;
}

.auth-checkbox input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 6px;
    width: 4px;
    height: 8px;
    border: solid #0f0a1f;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.auth-link {
    color: #ad9bff;
    font-weight: 600;
}

.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 14px;
    border: none;
    padding: 16px 20px;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-btn--primary {
    background: linear-gradient(120deg, #a58bff 0%, #6b4dff 100%);
    color: #0b0615;
    font-size: 16px;
}

.auth-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 35px rgba(108, 81, 255, 0.4);
}

.auth-card__divider {
    margin: 32px 0 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    color: rgba(224, 224, 255, 0.4);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.auth-card__divider span:first-child,
.auth-card__divider span:last-child {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.25));
}

.auth-card__social {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.auth-card__social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid rgba(173, 155, 255, 0.35);
    background: rgba(46, 39, 70, 0.75);
    color: rgba(230, 232, 255, 0.86);
    font-weight: 500;
    transition: border 0.2s ease, background 0.2s ease;
}

.auth-card__social-btn:hover {
    border-color: rgba(173, 155, 255, 0.6);
    background: rgba(59, 51, 88, 0.9);
}

.auth-card__social-btn--google i,
.auth-card__social-btn--apple i {
    font-size: 18px;
}

.auth-card__social-btn--google {
    color: #f6f7ff;
}

.auth-card__social-btn--apple {
    color: #f6f7ff;
}

.auth-card__social-btn--google i {
    color: #ff6f61;
}

.auth-card__social-btn--apple i {
    color: #f0f0f5;
}

.alert {
    border-radius: 12px;
    padding: 12px 16px;
}

@media (max-width: 991px) {
    .auth-card {
        grid-template-columns: 1fr;
    }

    .auth-card__visual {
        min-height: 260px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .auth-card__form {
        padding: 36px 28px 48px;
    }

    .auth-form__field--split {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575px) {
    .auth-card__form {
        padding: 28px 22px 40px;
    }

    .auth-card__form-header h1 {
        font-size: 28px;
    }

    .auth-card__visual {
        padding: 24px 22px;
    }
}