/**
 * Case Study Page Styles
 * Extends the main design system for case study template
 */

/* ============================================
   PAGE BACKGROUND
   ============================================ */

body.case-study-page {
    background: #FCF9F2;
}

/* ============================================
   NAVBAR - Always filled on case study page
   ============================================ */

.case-study-page .site-nav {
    /* Match homepage scrolled state padding */
    padding: clamp(1rem, 2vw, 1.5rem) var(--side-padding);
    /* Match homepage scrolled state variables */
    --nav-bg: rgba(249, 247, 242, 0.92);
    --nav-blur: 20px;
    --nav-border: rgba(0, 0, 0, 0.06);
    --nav-shadow: none;
}

/* ============================================
   CASE STUDY HERO SECTION
   ============================================ */

.case-study-hero {
    padding-top: clamp(8rem, 12vw, 12rem);
    padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
    background: #FCF9F2;
}

.case-study-layout {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

/* Main Content Column */
.case-study-main {
    display: flex;
    flex-direction: column;
    gap: clamp(2.5rem, 5vw, 3.5rem);
}

/* ============================================
   TAGS
   ============================================ */

.case-study-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.cs-tag {
    display: inline-block;
    width: fit-content;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: rgba(0, 0, 0, 0.8);
    transition: transform 0.3s var(--ease-smooth), box-shadow 0.3s var(--ease-smooth);
    text-decoration: none;
}

a.cs-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Soft pastel color variants */
.cs-tag.tag-lime {
    background: #E8F5D0;
}

.cs-tag.tag-pink {
    background: #FFE4F1;
}

.cs-tag.tag-yellow {
    background: #FFF4DC;
}

.cs-tag.tag-blue {
    background: #E0F4FF;
}

.cs-tag.tag-purple {
    background: #EDE4FF;
}

/* ============================================
   HERO CONTENT
   ============================================ */

.case-study-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 400;
    line-height: 1.15;
    color: var(--color-text-primary);
    text-transform: capitalize;
    margin: 0;
}

.case-study-intro {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   BEFORE/AFTER COMPARISON CARD
   ============================================ */

.before-after-card {
    overflow: hidden;
}

/* Single image layout */
.ba-single-image {
    position: relative;
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.ba-single-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.before-after-card:hover .ba-single-image img {
    transform: scale(1.02);
}

/* Two-panel layout (for future use) */
.ba-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
}

.ba-panel {
    position: relative;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.ba-label {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 2;
    background: var(--color-blue);
    color: #003057;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 400;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.ba-image {
    position: relative;
    width: 100%;
    height: clamp(350px, 50vw, 575px);
    overflow-y: auto;
    overflow-x: hidden;
}

.ba-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: top center;
}

.ba-panel:hover .ba-image img {
    /* No transform on hover for scrollable content */
}

/* ============================================
   STATS GRID
   ============================================ */

.case-study-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2vw, 1.5rem);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 400;
    color: var(--color-text-primary);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-text-primary);
}

.stat-desc {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */

.case-study-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scroll-margin-top: 100px;
}

.cs-section-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 400;
    color: var(--color-text-primary);
    text-transform: capitalize;
    margin: 0;
}

.cs-section-content {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   TESTIMONIAL CARD
   ============================================ */

.case-study-testimonial {
    background: #DBC9FF;
    border-radius: var(--radius-2xl);
    padding: clamp(2rem, 4vw, 3rem);
}

.testimonial-content-wrapper {
    display: flex;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: flex-start;
}

.testimonial-avatar {
    flex-shrink: 0;
    width: clamp(180px, 20vw, 240px);
    height: clamp(180px, 20vw, 240px);
    border-radius: var(--radius-md);
    background: #fff;
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex: 1;
}

.testimonial-quote-text {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    line-height: 1.5;
    color: var(--color-text-primary);
    margin: 0;
    font-style: normal;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-name {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-primary);
}

.author-role {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   EXPLORE TOPICS
   ============================================ */

.explore-topics {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* ============================================
   TABLE OF CONTENTS SIDEBAR
   ============================================ */

.case-study-sidebar {
    position: sticky;
    top: 120px;
    align-self: start;
}

.toc-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.toc-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 400;
    color: var(--color-text-primary);
    text-transform: capitalize;
    margin: 0;
}

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toc-link {
    display: flex;
    align-items: center;
    padding-left: 0.75rem;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-primary);
    text-decoration: none;
    border-left: 3px solid rgba(0, 0, 0, 0.15);
    transition: border-color 0.3s var(--ease-smooth), color 0.3s var(--ease-smooth);
}

.toc-link:hover,
.toc-link.active {
    border-left-color: var(--color-text-primary);
}

.toc-link.active {
    font-weight: 500;
}

/* ============================================
   RELATED STORIES SECTION
   ============================================ */

.related-stories-section {
    padding-top: clamp(2.5rem, 5vw, 3.5rem);
    padding-bottom: var(--section-padding-y);
    background: #FCF9F2;
}

.related-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: clamp(2rem, 4vw, 3rem);
}

.show-more-link {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: opacity 0.3s var(--ease-smooth);
}

.show-more-link:hover {
    opacity: 0.7;
}

.related-stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.5rem, 3vw, 2rem);
}

.related-story-card {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-decoration: none;
    transition: transform 0.4s var(--ease-smooth);
}

.related-story-card:hover {
    transform: translateY(-8px);
}

.related-story-image {
    position: relative;
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.related-story-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.related-story-card:hover .related-story-image img {
    transform: scale(1.05);
}

.related-story-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.related-tag {
    display: inline-block;
    width: fit-content;
    padding: 0.3125rem 0.5rem;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.5625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: rgba(0, 0, 0, 0.8);
}

/* Soft pastel color variants */
.related-tag.tag-purple {
    background: #EDE4FF;
}

.related-tag.tag-lime {
    background: #E8F5D0;
}

.related-tag.tag-pink {
    background: #FFE4F1;
}

.related-tag.tag-yellow {
    background: #FFF4DC;
}

.related-tag.tag-blue {
    background: #E0F4FF;
}

.related-title {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    color: var(--color-text-primary);
    text-transform: capitalize;
    margin: 0;
}

/* ============================================
   CTA CARDS SECTION
   ============================================ */

.cta-cards-section {
    padding-bottom: var(--section-padding-y);
    background: #FCF9F2;
}

/* Override footer background for case study page */
.case-study-page .site-footer-new {
    background: #FCF9F2;
}

.cta-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1rem, 2vw, 1.5rem);
}

.cta-card {
    display: flex;
    align-items: center;
    gap: clamp(2rem, 4vw, 3rem);
    padding: clamp(2rem, 4vw, 3rem);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.cta-card-lime {
    background: var(--color-lime);
}

.cta-card-yellow {
    background: #FFD895;
}

.cta-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cta-card-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 400;
    color: var(--color-text-primary);
    text-transform: capitalize;
    line-height: 1.3;
    margin: 0;
}

.cta-card-desc {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    line-height: 1.5;
    color: var(--color-text-primary);
    margin: 0;
}

.btn-cta-card {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #fff;
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 400;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    width: fit-content;
    transition: background-color 0.3s var(--ease-smooth), transform 0.3s var(--ease-smooth);
}

.btn-cta-card:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
}

.btn-cta-card svg {
    flex-shrink: 0;
}

.cta-card-visual {
    flex-shrink: 0;
    width: clamp(100px, 12vw, 150px);
    height: 100%;
    display: flex;
    align-items: stretch;
}

.cta-visual-placeholder {
    width: 100%;
    min-height: 120px;
    background: #fff;
    border-radius: var(--radius-lg);
}

/* Compact variant - no visual, reduced padding */
.cta-card--compact {
    padding: clamp(1.25rem, 2.5vw, 2rem);
}

.cta-card--compact .cta-card-content {
    flex: 1;
    max-width: 100%;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

@media (max-width: 1024px) {
    .case-study-layout {
        grid-template-columns: 1fr;
    }

    .case-study-sidebar {
        display: none;
    }

    .ba-container {
        grid-template-columns: 1fr;
    }

    .case-study-stats {
        grid-template-columns: 1fr;
    }

    .related-stories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-cards-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .case-study-hero {
        padding-top: clamp(6rem, 10vw, 8rem);
    }

    .testimonial-content-wrapper {
        flex-direction: column;
    }

    .testimonial-avatar {
        width: 100%;
        max-width: 200px;
        height: auto;
        aspect-ratio: 1;
    }

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

    .related-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .cta-card {
        flex-direction: column;
        text-align: center;
    }

    .cta-card-content {
        align-items: center;
    }

    .cta-card-visual {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 576px) {
    .ba-image {
        height: clamp(200px, 50vw, 300px);
    }

    .case-study-testimonial {
        padding: clamp(1.5rem, 3vw, 2rem);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Initial states for scroll reveal */
.case-study-tags,
.case-study-title,
.case-study-intro,
.before-after-card,
.stat-item,
.case-study-section,
.case-study-testimonial,
.explore-topics,
.related-story-card,
.cta-card {
    opacity: 0;
    transform: translateY(30px);
}

/* Visible state */
.case-study-tags.visible,
.case-study-title.visible,
.case-study-intro.visible,
.before-after-card.visible,
.stat-item.visible,
.case-study-section.visible,
.case-study-testimonial.visible,
.explore-topics.visible,
.related-story-card.visible,
.cta-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Before/After hover effect */
.ba-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.1));
    opacity: 0;
    transition: opacity 0.4s var(--ease-smooth);
    z-index: 1;
    pointer-events: none;
}

.ba-panel:hover::before {
    opacity: 1;
}

/* Stat item hover */
.stat-item {
    transition: transform 0.3s var(--ease-smooth);
}

.stat-item:hover {
    transform: translateY(-4px);
}