/* ===========================================
   profi - Newsletter Subscription Styles
   =========================================== */

/* ===========================================
   HERO SECTION
   =========================================== */
.newsletter-hero {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-900) 100%);
    color: #fff;
    padding: calc(var(--space) * 12) 0 calc(var(--space) * 16);
    text-align: center;
}

.newsletter-hero__title {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: calc(var(--space) * 4);
    line-height: 1.1;
    padding-bottom: 0;
    color: #fff;
}

.newsletter-hero__subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===========================================
   ACTION BAR (STICKY)
   =========================================== */
.newsletter-action-bar {
    background-color: var(--gray-100);
    border-bottom: 1px solid var(--gray-300);
    padding: calc(var(--space) * 6) 0;
    position: sticky;
    top: var(--header-height);
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.action-bar-card {
    background-color: #fff;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    padding: calc(var(--space) * 5) calc(var(--space) * 6);
    max-width: 800px;
    margin: 0 auto;
}

.action-bar-card--success {
    border-color: var(--primary);
    background-color: var(--primary-100);
}

.action-bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--space) * 4);
    flex-wrap: wrap;
}

.action-bar-input-group {
    display: flex;
    gap: calc(var(--space) * 3);
    flex: 1;
    min-width: 280px;
}

.action-bar-input-wrapper {
    flex: 1;
}

.action-bar-input {
    width: 100%;
    padding: calc(var(--space) * 3) calc(var(--space) * 4);
    font-size: 1rem;
    font-family: var(--font-body);
    border: 1px solid var(--secondary-400);
    border-radius: var(--radius-pill);
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.action-bar-input:focus {
    outline: none;
    border-color: var(--gray-600);
    box-shadow: var(--focus-ring);
}

.action-bar-error {
    display: block;
    margin-top: calc(var(--space) * 2);
    font-size: var(--text-sm);
    color: #dc2626;
}

.action-bar-user {
    display: flex;
    align-items: center;
    gap: calc(var(--space) * 3);
    flex: 1;
}

.action-bar-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-pill);
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.action-bar-icon--success {
    background-color: #16a34a;
    color: #fff;
    font-weight: 700;
}

.action-bar-user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 200px;
}

.action-bar-label {
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.action-bar-email {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
    background: none;
    border: none;
    padding: 0;
    width: 100%;
    min-width: 250px;
}

.action-bar-email::part(input_field) {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
    background: none;
    border: none;
    padding: 0;
    width: 100%;
}

.action-bar-actions {
    display: flex;
    gap: calc(var(--space) * 3);
}

.btn-action-primary {
    padding: calc(var(--space) * 3) calc(var(--space) * 6);
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    background-color: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

.btn-action-primary:hover {
    background-color: var(--primary-800);
    transform: translateY(-1px);
}

.btn-action-secondary {
    padding: calc(var(--space) * 2) calc(var(--space) * 4);
    font-size: var(--text-sm);
    font-weight: 500;
    font-family: var(--font-body);
    background-color: transparent;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-action-secondary:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-400);
}

.action-bar-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--space) * 3);
    margin-top: calc(var(--space) * 4);
    padding-top: calc(var(--space) * 4);
    border-top: 1px solid var(--gray-300);
    text-align: center;
}

.action-bar-legal {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin: 0;
}

.action-bar-legal a {
    color: var(--primary);
    text-decoration: underline;
}

.action-bar-login-link {
    display: inline-block;
    padding: calc(var(--space) * 2) calc(var(--space) * 4);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-body);
    color: var(--secondary);
    background-color: var(--gray-100);
    border: 1px solid var(--secondary-400);
    border-radius: var(--radius-pill);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
}

.action-bar-login-link:hover {
    background-color: var(--gray-200);
    border-color: var(--secondary);
    color: var(--secondary);
}

.action-bar-hint {
    margin-top: calc(var(--space) * 3);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

/* ===========================================
   NEWSLETTER SELECTION
   =========================================== */
.newsletter-selection {
    padding: calc(var(--space) * 12) 0 calc(var(--space) * 16);
    background-color: var(--bg);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: calc(var(--space) * 3);
    text-align: center;
    padding-bottom: 0;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    text-align: center;
    margin-bottom: calc(var(--space) * 10);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Featured Newsletter (Full Width) */
.newsletter-featured {
    max-width: 700px;
    margin: 0 auto calc(var(--space) * 5);
}

/* Other Newsletters Grid */
.newsletter-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: calc(var(--space) * 3);
    max-width: 700px;
    margin: 0 auto;
}

@media (max-width: 767px) {
    .newsletter-featured {
        margin-bottom: calc(var(--space) * 4);
    }
}

.newsletter-card {
    background-color: #fff;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.newsletter-card:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.newsletter-card__header {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: calc(var(--space) * 3);
    padding: calc(var(--space) * 4);
    background-color: var(--gray-100);
    border-bottom: 1px solid var(--gray-300);
}

@media (min-width: 480px) {
    .newsletter-card__header {
        flex-wrap: nowrap;
        gap: calc(var(--space) * 4);
        padding: calc(var(--space) * 5);
    }
}

.newsletter-card__icon-badge {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 700;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

@media (min-width: 480px) {
    .newsletter-card__icon-badge {
        width: 44px;
        height: 44px;
        font-size: var(--text-sm);
    }
}

.newsletter-card__info {
    flex: 1;
    min-width: 0;
}

/* Mobile: Button takes full width below content */
@media (max-width: 479px) {
    .newsletter-card__header > .toggle-btn,
    .newsletter-card__header > u-newsletter-toggle-subscription-button,
    .newsletter-card__header > u-conditional-render,
    .newsletter-card__header > u-newsletter-checkbox {
        width: 100%;
        order: 10;
    }

    .newsletter-card__header .toggle-btn {
        width: 100%;
        text-align: center;
    }

    .newsletter-card__header .newsletter-toggle {
        margin-left: auto;
    }

    .newsletter-card__info {
        flex: 1 1 calc(100% - 60px);
    }
}

.newsletter-card__title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: calc(var(--space) * 1);
}

@media (min-width: 480px) {
    .newsletter-card__title {
        font-size: var(--text-lg);
    }
}

.newsletter-card__description {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin: 0;
    line-height: 1.6;
}

.newsletter-card__frequency {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: calc(var(--space) * 2);
}

.newsletter-card__error {
    display: block;
    padding: calc(var(--space) * 2) calc(var(--space) * 5);
    font-size: var(--text-sm);
    color: #dc2626;
    background-color: #fef2f2;
}

.newsletter-toggle {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    width: 52px;
    height: 28px;
    background-color: #d1d5db;
    border-radius: 14px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    flex-shrink: 0;
    margin-top: calc(var(--space) * 1);
}

.newsletter-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 24px;
    height: 24px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.newsletter-toggle:checked {
    background-color: var(--primary);
}

.newsletter-toggle:checked::after {
    transform: translateX(24px);
}

.toggle-btn {
    padding: calc(var(--space) * 2) calc(var(--space) * 3);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.toggle-btn--subscribe {
    background-color: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
}

.toggle-btn--subscribe:hover {
    background-color: var(--primary-800);
}

.toggle-btn--unsubscribe {
    background-color: transparent;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.toggle-btn--unsubscribe:hover {
    background-color: #dc2626;
    color: #fff;
    border-color: #dc2626;
}

.doi-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--space) * 3);
    padding: calc(var(--space) * 3) calc(var(--space) * 5);
    background-color: #fef3c7;
    border-bottom: 1px solid #fcd34d;
    font-size: var(--text-sm);
    color: #92400e;
}

.doi-banner__text {
    flex: 1;
}

.doi-banner__btn {
    padding: calc(var(--space) * 1) calc(var(--space) * 3);
    font-size: var(--text-sm);
    font-weight: 500;
    font-family: var(--font-body);
    background-color: transparent;
    color: #92400e;
    border: 1px solid #d97706;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.doi-banner__btn:hover {
    background-color: #d97706;
    color: #fff;
}

.newsletter-card__preferences {
    padding: calc(var(--space) * 4) calc(var(--space) * 5);
    background-color: #fff;
}

.preferences-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: calc(var(--space) * 3);
}

.preferences-list {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--space) * 2);
}

.preference-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--space) * 2) calc(var(--space) * 4);
    background-color: var(--gray-100);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: var(--text-sm);
    user-select: none;
}

.preference-chip:hover {
    background-color: var(--gray-200);
    border-color: var(--gray-400);
}

.preference-chip:has(.preference-input:checked) {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.preference-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.preference-chip__label {
    color: inherit;
    font-weight: 500;
}

/* Compact Card Styles (no preferences section) */
.newsletter-card--compact .newsletter-card__header {
    border-bottom: none;
}

/* ===========================================
   RESPONSIVE
   =========================================== */
@media (max-width: 767px) {
    .newsletter-hero {
        padding: calc(var(--space) * 6) 0 calc(var(--space) * 8);
    }

    .newsletter-hero__title {
        font-size: var(--text-xl);
    }

    .newsletter-hero__subtitle {
        font-size: var(--text-sm);
    }

    .newsletter-selection {
        padding: calc(var(--space) * 6) 0 calc(var(--space) * 10);
    }

    .section-subtitle {
        margin-bottom: calc(var(--space) * 6);
    }

    .newsletter-action-bar {
        position: relative;
        top: 0;
    }

    .action-bar-card {
        padding: calc(var(--space) * 4);
    }

    .action-bar-input-group {
        flex-direction: column;
        min-width: 100%;
    }

    .action-bar-content {
        flex-direction: column;
        align-items: stretch;
    }

    .newsletter-grid {
        grid-template-columns: 1fr;
    }

    .newsletter-card__header {
        flex-wrap: wrap;
    }

    .doi-banner {
        flex-direction: column;
        align-items: flex-start;
    }
}