/* ===================================================================
   VIVELEAD BLOG - EDITORIAL LAYOUT
   Premium blog design with editorial quality and human-crafted feel
   =================================================================== */

/* CSS Variables */
:root {
    --blog-primary: #4051B5;
    --blog-primary-dark: #2c3e9f;
    --blog-success: #1e7e34;
    --blog-text-dark: #1a202c;
    --blog-text-body: #2d3748;
    --blog-text-light: #4a5568;
    --blog-text-muted: #718096;
    --blog-border: #e2e8f0;
    --blog-bg-light: #f7fafc;
    --blog-bg-white: #ffffff;
    --blog-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --blog-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --blog-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --blog-radius-sm: 6px;
    --blog-radius-md: 10px;
    --blog-radius-lg: 16px;
    --blog-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================================================
   BLOG HERO SECTION
   =================================================================== */

.blog-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 20px 60px;
    margin-top: -20px;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.blog-hero__container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.blog-hero__breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.blog-hero__breadcrumb a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--blog-transition);
}

.blog-hero__breadcrumb a:hover {
    color: #ffffff;
    text-decoration: underline;
}

.blog-hero__breadcrumb .separator {
    opacity: 0.5;
}

.blog-hero__breadcrumb .current {
    font-weight: 500;
    color: #ffffff;
}

.blog-hero__title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    color: #ffffff;
    margin: 0 0 20px;
    letter-spacing: -0.02em;
}

.blog-hero__excerpt {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    margin: 0 0 32px;
    font-weight: 400;
}

.blog-hero__meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.95);
    font-size: 15px;
}

.meta-item svg {
    color: rgba(255, 255, 255, 0.8);
    flex-shrink: 0;
}

.meta-item--author {
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    object-fit: cover;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-weight: 600;
    color: #ffffff;
}

.author-role {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
}

.meta-divider {
    width: 1px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
}

/* ===================================================================
   BLOG CONTENT WRAPPER & SIDEBAR LAYOUT
   =================================================================== */

.blog-content-wrapper {
    background: var(--blog-bg-white);
    padding: 60px 20px 80px;
}

.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    align-items: start;
}

.blog-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-sticky {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* Table of Contents */
.toc {
    background: var(--blog-bg-light);
    border-radius: var(--blog-radius-md);
    padding: 24px;
    border: 1px solid var(--blog-border);
}

.toc__title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--blog-text-dark);
    margin: 0 0 16px;
}

.toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc > ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toc a {
    display: block;
    color: var(--blog-text-body);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    padding: 6px 0;
    transition: var(--blog-transition);
    border-left: 2px solid transparent;
    padding-left: 12px;
}

.toc a:hover {
    color: var(--blog-primary);
    border-left-color: var(--blog-primary);
}

/* Sidebar CTA */
.sidebar-cta {
    background: linear-gradient(135deg, #f6f8fb 0%, #e9ecf5 100%);
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 24px;
    text-align: center;
}

.sidebar-cta__icon {
    margin: 0 auto 16px;
    width: 48px;
    height: 48px;
}

.sidebar-cta h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 8px;
}

.sidebar-cta p {
    font-size: 14px;
    color: var(--blog-text-light);
    margin: 0 0 20px;
    line-height: 1.5;
}

.sidebar-cta__btn {
    display: block;
    background: var(--blog-primary);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: var(--blog-radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--blog-transition);
}

.sidebar-cta__btn:hover {
    background: var(--blog-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--blog-shadow-md);
}

/* ===================================================================
   BLOG MAIN CONTENT
   =================================================================== */

.blog-main {
    max-width: 720px;
}

/* Intro Section */
.blog-intro {
    margin-bottom: 48px;
}

.intro-lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--blog-text-body);
    margin: 0 0 24px;
}

.intro-lead:first-child {
    font-size: 1.375rem;
}

.intro-lead strong {
    color: var(--blog-text-dark);
    font-weight: 600;
}

.intro-lead em {
    font-style: italic;
    color: var(--blog-primary);
}

/* Content Sections */
.content-section {
    margin-bottom: 60px;
}

.content-section h2 {
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--blog-text-dark);
    margin: 0 0 24px;
    letter-spacing: -0.01em;
    scroll-margin-top: 100px;
}

.content-section h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
    font-weight: 700;
    line-height: 1.4;
    color: var(--blog-text-dark);
    margin: 40px 0 16px;
}

.content-section h4 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--blog-text-dark);
    margin: 24px 0 12px;
}

.content-section p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--blog-text-body);
    margin: 0 0 20px;
}

.content-section strong {
    font-weight: 600;
    color: var(--blog-text-dark);
}

.content-section em {
    font-style: italic;
}

/* Lists */
.content-list {
    margin: 24px 0;
    padding-left: 0;
}

.content-list li {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--blog-text-body);
    margin-bottom: 12px;
    padding-left: 32px;
    position: relative;
}

.content-list--bullets li::before {
    content: '•';
    position: absolute;
    left: 12px;
    color: var(--blog-primary);
    font-weight: bold;
    font-size: 1.25em;
}

/* Callout Box */
.callout {
    background: linear-gradient(135deg, #fef5e7 0%, #fff9ed 100%);
    border-left: 4px solid #f39c12;
    padding: 20px 24px;
    border-radius: var(--blog-radius-sm);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--blog-text-body);
    margin: 32px 0;
}

/* Pain Points Grid */
.pain-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.pain-point {
    display: flex;
    gap: 16px;
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 20px;
    transition: var(--blog-transition);
}

.pain-point:hover {
    border-color: #e74c3c;
    box-shadow: var(--blog-shadow-md);
}

.pain-point__icon {
    font-size: 28px;
    flex-shrink: 0;
    line-height: 1;
}

.pain-point__content strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin-bottom: 6px;
}

.pain-point__content p {
    font-size: 14px;
    color: var(--blog-text-light);
    margin: 0;
    line-height: 1.5;
}

/* Inline CTA */
.inline-cta {
    background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-dark) 100%);
    border-radius: var(--blog-radius-lg);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin: 48px 0;
    box-shadow: var(--blog-shadow-lg);
}

.inline-cta__content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 8px;
}

.inline-cta__content p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.inline-cta__btn {
    background: #ffffff;
    color: var(--blog-primary);
    padding: 14px 32px;
    border-radius: var(--blog-radius-sm);
    border: none;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--blog-transition);
}

.inline-cta__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.feature-card {
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 28px;
    transition: var(--blog-transition);
}

.feature-card:hover {
    border-color: var(--blog-primary);
    box-shadow: var(--blog-shadow-lg);
    transform: translateY(-4px);
}

.feature-card__icon {
    margin-bottom: 20px;
}

.feature-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 12px;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--blog-text-light);
    margin: 0 0 16px;
}

.feature-benefit {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--blog-success);
}

/* Blog Figures */
.blog-figure {
    margin: 48px 0;
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    box-shadow: var(--blog-shadow-lg);
}

.blog-figure--hero {
    margin: 40px 0 56px;
}

.blog-figure__img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-figure__caption {
    background: var(--blog-bg-light);
    padding: 16px 20px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--blog-text-light);
    border-top: 1px solid var(--blog-border);
    font-style: italic;
}

/* Impact Cards */
.impact-cards {
    display: grid;
    gap: 24px;
    margin: 32px 0;
}

.impact-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 32px;
    position: relative;
    transition: var(--blog-transition);
}

.impact-card:hover {
    border-color: var(--blog-primary);
    box-shadow: var(--blog-shadow-md);
}

.impact-number {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(64, 81, 181, 0.08);
    line-height: 1;
}

.impact-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 12px;
    padding-right: 60px;
}

.impact-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--blog-text-body);
    margin: 0;
}

/* Comparison Table */
.comparison-table {
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    margin: 32px 0;
}

.comparison-table__header {
    display: grid;
    grid-template-columns: 1.5fr 1.5fr 2fr;
    background: var(--blog-bg-light);
    border-bottom: 2px solid var(--blog-border);
}

.comparison-col {
    padding: 20px 24px;
    font-weight: 700;
    font-size: 15px;
    color: var(--blog-text-dark);
}

.comparison-col--highlight {
    background: linear-gradient(135deg, var(--blog-primary) 0%, var(--blog-primary-dark) 100%);
    color: #ffffff;
}

.comparison-row {
    display: grid;
    grid-template-columns: 1.5fr 1.5fr 2fr;
    border-bottom: 1px solid var(--blog-border);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-cell {
    padding: 20px 24px;
    font-size: 15px;
    color: var(--blog-text-body);
    display: flex;
    align-items: center;
}

.comparison-cell--feature {
    font-weight: 600;
    color: var(--blog-text-dark);
}

.comparison-cell--highlight {
    background: rgba(64, 81, 181, 0.03);
    font-weight: 600;
    gap: 8px;
}

.check-icon {
    color: var(--blog-success);
    font-weight: bold;
    font-size: 18px;
}

/* Industry Grid */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.industry-card {
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 24px;
    text-align: center;
    transition: var(--blog-transition);
}

.industry-card:hover {
    border-color: var(--blog-primary);
    transform: translateY(-4px);
    box-shadow: var(--blog-shadow-md);
}

.industry-icon {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.industry-card h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 12px;
}

.industry-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--blog-text-light);
    margin: 0;
}

/* FAQ Section */
.faq-section {
    background: var(--blog-bg-light);
    border-radius: var(--blog-radius-lg);
    padding: 48px;
    margin: 60px 0;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 32px;
}

.faq-item {
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-md);
    padding: 28px;
    transition: var(--blog-transition);
}

.faq-item:hover {
    border-color: var(--blog-primary);
    box-shadow: var(--blog-shadow-sm);
}

.faq-question {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 12px;
    line-height: 1.4;
}

.faq-answer {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--blog-text-body);
    margin: 0;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--blog-radius-lg);
    padding: 60px 48px;
    text-align: center;
    margin: 60px 0;
    box-shadow: var(--blog-shadow-lg);
}

.final-cta__eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 12px;
}

.final-cta h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 16px;
    line-height: 1.2;
}

.final-cta p {
    font-size: 1.25rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.95);
    margin: 0 0 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.final-cta__buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    padding: 16px 32px;
    border-radius: var(--blog-radius-sm);
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    transition: var(--blog-transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary--large,
.btn-secondary--large {
    padding: 18px 40px;
    font-size: 18px;
}

.btn-primary {
    background: #ffffff;
    color: var(--blog-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.final-cta__note {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* ===================================================================
   AUTHOR BIO
   =================================================================== */

.author-bio {
    background: var(--blog-bg-light);
    padding: 48px 20px;
    margin-top: 80px;
}

.author-bio__container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: 32px;
    align-items: center;
}

.author-bio__avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid #ffffff;
    box-shadow: var(--blog-shadow-md);
    flex-shrink: 0;
    object-fit: cover;
}

.author-bio__name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 4px;
}

.author-bio__role {
    font-size: 16px;
    color: var(--blog-primary);
    font-weight: 600;
    margin: 0 0 12px;
}

.author-bio__description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--blog-text-body);
    margin: 0;
}

/* ===================================================================
   RELATED POSTS
   =================================================================== */

.related-posts {
    background: var(--blog-bg-white);
    padding: 80px 20px;
}

.related-posts__container {
    max-width: 1200px;
    margin: 0 auto;
}

.related-posts__title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 40px;
    text-align: center;
}

.related-posts__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.related-card {
    background: var(--blog-bg-white);
    border: 2px solid var(--blog-border);
    border-radius: var(--blog-radius-lg);
    overflow: hidden;
    transition: var(--blog-transition);
}

.related-card:hover {
    border-color: var(--blog-primary);
    box-shadow: var(--blog-shadow-lg);
    transform: translateY(-6px);
}

.related-card__link {
    text-decoration: none;
    display: block;
}

.related-card__image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.related-card__content {
    padding: 24px;
}

.related-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blog-text-dark);
    margin: 0 0 12px;
    line-height: 1.4;
}

.related-card__excerpt {
    font-size: 15px;
    line-height: 1.6;
    color: var(--blog-text-light);
    margin: 0 0 16px;
}

.related-card__cta {
    font-size: 15px;
    font-weight: 600;
    color: var(--blog-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.related-card:hover .related-card__cta {
    gap: 10px;
    transition: gap 0.3s ease;
}

/* ===================================================================
   RESPONSIVE DESIGN
   =================================================================== */

@media (max-width: 1024px) {
    .blog-container {
        grid-template-columns: 240px 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: 60px 20px 40px;
    }

    .blog-container {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .blog-sidebar {
        display: none;
    }

    .blog-main {
        max-width: 100%;
    }

    .blog-content-wrapper {
        padding: 40px 20px 60px;
    }

    .content-section {
        margin-bottom: 40px;
    }

    .inline-cta {
        flex-direction: column;
        padding: 32px 24px;
        text-align: center;
    }

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

    .comparison-table__header,
    .comparison-row {
        grid-template-columns: 1fr;
    }

    .comparison-col,
    .comparison-cell {
        padding: 16px;
    }

    .author-bio__container {
        flex-direction: column;
        text-align: center;
    }

    .related-posts__grid {
        grid-template-columns: 1fr;
    }

    .final-cta {
        padding: 40px 24px;
    }

    .final-cta__buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .faq-section {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: 40px 16px 32px;
    }

    .blog-hero__meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .meta-divider {
        display: none;
    }

    .blog-content-wrapper {
        padding: 32px 16px 40px;
    }

    .pain-points {
        grid-template-columns: 1fr;
    }

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

    .impact-number {
        font-size: 2rem;
        top: 16px;
        right: 16px;
    }
}