body {
    height: auto;
    min-height: 100vh;
    overflow: auto;
    display: block;
}

.subscribe-wrapper {
    max-width: 640px;
    margin: 0 auto;
    padding: 40px 20px 60px 20px;
}

.subscribe-header h1 {
    font-size: 26px;
    font-weight: 800;
    color: var(--dark-blue);
    margin-bottom: 8px;
}

.subscribe-header p {
    color: var(--gray);
    font-size: 15px;
    line-height: 1.5;
    margin-bottom: 28px;
}

.subscribe-form {
    background-color: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 28px;
}

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

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
}

.optional-label {
    font-weight: 500;
    color: var(--gray);
    text-transform: none;
    letter-spacing: 0;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: var(--font-body);
    outline: none;
}

.form-control:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 200, 0.12);
}

select.form-control[multiple] {
    padding: 6px;
}

select.form-control[multiple] option {
    padding: 6px 8px;
    border-radius: 4px;
}

.field-hint {
    font-size: 12px;
    color: var(--gray);
    margin-top: 6px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--black);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

#sub-filters-section {
    border-top: 1px solid var(--gray-border);
    padding-top: 18px;
    margin-top: 4px;
    transition: opacity 0.15s ease;
}

#sub-filters-section.disabled-section {
    opacity: 0.45;
    pointer-events: none;
}

.filters-intro {
    font-size: 13px;
    color: var(--gray);
    font-weight: 600;
    margin-bottom: 14px;
}

.subscribe-error {
    display: none;
    color: var(--red);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
}

.subscribe-error.visible {
    display: block;
}

.btn-submit {
    width: 100%;
    background-color: var(--dark-blue);
    color: var(--white);
    border: none;
    padding: 13px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.15s ease;
}

.btn-submit:hover:not(:disabled) {
    background-color: var(--blue);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.subscribe-success {
    background-color: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 36px 28px;
    text-align: center;
}

.subscribe-success i {
    font-size: 40px;
    color: var(--dark-green);
    margin-bottom: 14px;
    display: block;
}

.subscribe-success h2 {
    font-size: 20px;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 10px;
}

.subscribe-success p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.5;
    margin-bottom: 14px;
}

.unsub-link-preview {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue);
    word-break: break-all;
    margin-bottom: 14px;
}

.save-link-note {
    font-size: 12px;
    color: var(--gray);
    font-style: italic;
}

@media (max-width: 640px) {
    .subscribe-wrapper {
        padding: 24px 16px 40px 16px;
    }

    .subscribe-form {
        padding: 20px;
    }
}