/* ============================================
   PRODUCT NEWS STYLES
   ============================================ */

/* Page Container */
.product-news-page {
    padding-top: var(--layout-page-top);
    min-height: 100vh;
}

/* ---- Hero Section ---- */
.product-news-hero {
    padding: var(--layout-hero-top) 0 var(--section-padding-y-tight);
    text-align: center;
}

.product-news-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 0;
    font-size: var(--font-md);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary-light);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease-out both;
}

.product-news-hero-badge .pulse-dot {
    width: 6px;
    height: 6px;
}

.product-news-hero-title {
    font-size: var(--font-section);
    font-weight: 800;
    line-height: var(--line-tight);
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.product-news-hero-subtitle {
    font-size: var(--font-xl);
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: var(--line-relaxed);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* ---- Breadcrumb ---- */
.product-news-breadcrumb {
    padding: var(--space-xl) 0 var(--space-md);
    padding-top: calc(80px + var(--space-xl)); /* Account for fixed nav */
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-md);
    color: var(--color-text-muted);
}

.breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary-light);
}

.breadcrumb-separator {
    color: var(--color-text-muted);
}

.breadcrumb-current {
    color: var(--color-text);
}

/* ---- Product News Section ---- */
.product-news-section {
    padding: var(--space-xl) 0 var(--section-padding-y-loose);
}

/* ---- Timeline Layout ---- */
.product-news-timeline {
    position: relative;
    padding-left: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.product-news-timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, rgba(var(--color-primary-rgb), 0.15) 100%);
    border-radius: 1px;
}

/* Timeline entry */
.product-news-entry {
    position: relative;
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s ease-out both;
}

.product-news-timeline-dot {
    position: absolute;
    left: -40px;
    top: 28px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid rgba(var(--color-primary-rgb), 0.4);
    z-index: 1;
    transition: border-color var(--transition-base);
}

.product-news-entry:first-child .product-news-timeline-dot {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 12px var(--color-primary-glow);
}

/* Entry Card */
.product-news-entry-card {
    background: rgba(var(--color-primary-rgb), 0.05);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.product-news-entry-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--color-primary-rgb), 0.4);
    box-shadow: var(--shadow-card-hover-md);
}

/* Entry Meta (version badge + date row) */
.product-news-entry-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

/* Version Badge */
.product-news-version-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    background: rgba(var(--color-primary-rgb), 0.1);
    border: 1px solid rgba(var(--color-primary-rgb), 0.25);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: var(--font-xs);
    font-weight: 500;
    color: var(--color-primary-light);
    white-space: nowrap;
}

.product-news-version-badge-lg {
    padding: 0.25rem 0.75rem;
    font-size: var(--font-md);
}

.product-news-entry-date {
    font-size: var(--font-md);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.product-news-entry-title {
    font-size: var(--font-2xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: var(--line-snug);
}

.product-news-entry-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.product-news-entry-title a:hover {
    color: var(--color-primary-light);
}

.product-news-entry-excerpt {
    color: var(--color-text-secondary);
    line-height: var(--line-relaxed);
    margin-bottom: var(--space-lg);
}

.product-news-read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-primary-light);
    text-decoration: none;
    font-weight: 500;
    transition: gap var(--transition-fast);
}

.product-news-read-more:hover {
    gap: var(--space-sm);
}

.product-news-read-more svg {
    transition: transform var(--transition-fast);
}

.product-news-read-more:hover svg {
    transform: translateX(4px);
}

/* ---- Show Page Header ---- */
.product-news-header {
    padding: var(--space-md) 0 var(--space-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.product-news-header .container {
    max-width: 800px;
}

.product-news-show-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.product-news-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-text);
    line-height: var(--line-tight);
    letter-spacing: -0.02em;
}

/* ---- Content Section ---- */
.product-news-content-section {
    padding-bottom: var(--section-padding-y);
}

.product-news-content-section .container {
    max-width: 800px;
}

.product-news-content {
    color: var(--color-text);
    line-height: 1.8;
    font-size: var(--font-base);
}

.product-news-content p {
    margin-bottom: var(--space-lg);
}

.product-news-content ul,
.product-news-content ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.product-news-content li {
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.product-news-content h2 {
    font-size: var(--font-2xl);
    font-weight: 700;
    line-height: var(--line-snug);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.product-news-content h3 {
    font-size: var(--font-xl);
    font-weight: 600;
    line-height: var(--line-snug);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.product-news-content code {
    font-family: var(--font-mono);
    background: var(--color-bg-elevated);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

.product-news-content pre {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    overflow-x: auto;
    margin-bottom: var(--space-lg);
}

.product-news-content pre code {
    background: none;
    padding: 0;
}

.product-news-content a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.product-news-content a strong {
    font-family: var(--font-mono);
    font-weight: 500;
    background: var(--color-bg-elevated);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    border: 1px solid var(--color-border);
}

.product-news-content a:hover strong {
    border-color: var(--color-primary);
}

.product-news-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--space-lg) 0;
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    box-shadow: var(--shadow-card-hover-sm);
}

/* ---- Navigation Section ---- */
.product-news-nav-section {
    padding-bottom: var(--section-padding-y-loose);
}

.product-news-nav-section .container {
    max-width: 800px;
}

.product-news-nav {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.product-news-nav-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    font-size: var(--font-md);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-xl);
    background: rgba(var(--color-primary-rgb), 0.05);
    color: var(--color-text);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    min-width: 200px;
}

.product-news-nav-link:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--color-primary-rgb), 0.4);
    box-shadow: var(--shadow-card-hover-sm);
}

.product-news-nav-prev {
    align-items: flex-start;
}

.product-news-nav-next {
    align-items: flex-end;
    text-align: right;
}

.product-news-nav-label {
    font-size: var(--font-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.product-news-nav-title {
    font-weight: 600;
    color: var(--color-text);
}

.product-news-back {
    text-align: center;
}

/* ---- Newsletter Subscribe Section ---- */
.newsletter-subscribe-section {
    padding: 0 0 var(--space-xl);
}

.newsletter-subscribe-card {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(var(--color-primary-rgb), 0.05);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    animation: fadeInUp 0.6s ease-out 0.25s both;
}

.newsletter-title {
    font-size: var(--font-3xl);
    font-weight: 700;
    line-height: var(--line-snug);
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.newsletter-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    line-height: var(--line-normal);
}

.newsletter-form {
    margin-bottom: var(--space-lg);
}

.newsletter-input-group {
    display: flex;
    gap: var(--space-sm);
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 0.625rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--font-md);
    font-family: inherit;
    outline: 2px solid transparent;
    outline-offset: 2px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), outline-color var(--transition-fast);
}

.newsletter-input:focus-visible {
    outline-color: var(--color-primary);
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: var(--font-md);
}

.newsletter-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.newsletter-submit {
    flex-shrink: 0;
}

.newsletter-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.newsletter-spinner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.newsletter-message {
    margin-top: var(--space-md);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-md);
    font-weight: 500;
    display: inline-block;
}

.newsletter-message-success {
    background: rgba(var(--color-success-rgb), 0.1);
    border: 1px solid rgba(var(--color-success-rgb), 0.25);
    color: var(--color-success);
}

.newsletter-message-error {
    background: rgba(var(--color-error-rgb), 0.1);
    border: 1px solid rgba(var(--color-error-rgb), 0.25);
    color: var(--color-error);
}

.newsletter-alt {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.newsletter-alt-divider {
    color: var(--color-text-muted);
    font-size: var(--font-sm);
}

.newsletter-rss-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-primary-light);
    text-decoration: none;
    font-size: var(--font-md);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.newsletter-rss-link:hover {
    color: var(--color-primary);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .product-news-hero {
        padding: var(--layout-hero-top-mobile) 0 var(--space-xl);
    }

    .product-news-timeline {
        padding-left: 28px;
    }

    .product-news-timeline::before {
        left: 5px;
    }

    .product-news-timeline-dot {
        left: -28px;
        width: 12px;
        height: 12px;
        top: 30px;
    }

    .product-news-entry-card {
        padding: var(--space-lg);
    }

    .product-news-entry-title {
        font-size: var(--font-xl);
    }

    .product-news-nav {
        flex-direction: column;
    }

    .product-news-nav-link {
        min-width: auto;
    }

    .product-news-nav-next {
        align-items: flex-start;
        text-align: left;
    }

    .newsletter-subscribe-card {
        padding: var(--space-lg);
    }

    .newsletter-title {
        font-size: var(--font-2xl);
    }

    .newsletter-input-group {
        flex-direction: column;
    }

    .newsletter-submit {
        width: 100%;
    }
}