/* Case Studies CSS styles for SERP Intelligence website - n8n.io inspired redesign */

/* Import Inter font from Google Fonts (if not already imported in main CSS) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* Case Studies Landing Page Styles */

.case-studies-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    color: var(--light-gray);
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.case-studies-header::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50%;
    height: 120%;
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    opacity: 0.15;
    transform: rotate(-15deg);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: floatShape 15s ease-in-out infinite alternate;
}

.case-studies-header::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 40%;
    height: 120%;
    background: linear-gradient(135deg, var(--accent-orange), var(--primary-pink));
    opacity: 0.1;
    transform: rotate(15deg);
    border-radius: 70% 30% 30% 70% / 70% 30% 30% 70%;
    animation: floatShape 20s ease-in-out infinite alternate-reverse;
}

.case-studies-header-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.case-studies-header h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    position: relative;
    padding: 0 10px;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: gradientShift 8s ease infinite;
}

.case-studies-header p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.85;
    color: var(--light-gray);
    line-height: 1.6;
}

/* Filter System */

.case-studies-filter {
    background-color: var(--secondary-dark);
    padding: 30px;
    border-radius: 16px;
    margin: 40px auto;
    max-width: 1000px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-studies-filter:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
}

.case-studies-filter::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-pink), var(--accent-orange));
}

.filter-title {
    color: var(--light-gray);
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 600;
    position: relative;
    padding-left: 15px;
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 20px;
}

.filter-option {
    background-color: var(--primary-dark);
    color: var(--light-gray);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-option:hover {
    background-color: rgba(255, 107, 107, 0.1);
    border-color: var(--primary-pink);
    transform: translateY(-2px);
}

.filter-option.active {
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    color: var(--light-gray);
    border: none;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.filter-option .icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Case Studies Grid */

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.case-study-card {
    background-color: var(--secondary-dark);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-study-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 107, 107, 0.2);
}

.case-study-image {
    height: 200px;
    background-color: var(--primary-dark);
    position: relative;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-study-card:hover .case-study-image img {
    transform: scale(1.05);
}

.case-study-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(20, 20, 43, 0.8));
}

.case-study-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    color: var(--light-gray);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.case-study-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-study-title {
    color: var(--light-gray);
    font-size: 1.4rem;
    margin-top: 0;
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
    transition: color 0.3s ease;
}

.case-study-card:hover .case-study-title {
    color: var(--primary-pink);
}

.case-study-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    transition: width 0.3s ease;
}

.case-study-card:hover .case-study-title::after {
    width: 80px;
}

.case-study-description {
    color: var(--light-gray);
    opacity: 0.8;
    margin-bottom: 20px;
    line-height: 1.6;
    flex-grow: 1;
}

/* Outcome Cards */

.outcome-cards {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.outcome-card {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2), rgba(255, 159, 28, 0.2));
    padding: 15px;
    border-radius: 12px;
    flex: 1;
    min-width: 120px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.outcome-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.outcome-value {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 5px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.outcome-label {
    font-size: 0.85rem;
    color: var(--light-gray);
    font-weight: 500;
}

.case-study-link {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-pink);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: auto;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-pink);
    text-align: center;
}

.case-study-link:hover {
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--light-gray);
    transform: translateY(-2px);
    border-color: var(--accent-orange);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.15);
}

/* Individual Case Study Page Styles */

.case-study-hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    color: var(--light-gray);
    padding: 100px 20px;
    position: relative;
    overflow: hidden;
}

.case-study-hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 50%;
    height: 120%;
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    opacity: 0.15;
    transform: rotate(-15deg);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
}

.case-study-hero-content {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.case-study-hero-text h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
}

.case-study-hero-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.85;
    line-height: 1.6;
}

.case-study-meta {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.case-study-meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-size: 0.9rem;
    color: var(--primary-pink);
    font-weight: 600;
    margin-bottom: 5px;
}

.meta-value {
    font-size: 1.1rem;
    color: var(--light-gray);
}

.case-study-hero-image {
    background-color: var(--secondary-dark);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    height: 300px;
    position: relative;
}

.case-study-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Case Study Content Sections */

.case-study-section {
    padding: 80px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.case-study-section:nth-of-type(even) {
    background-color: var(--secondary-dark);
}

.section-title {
    color: var(--light-gray);
    font-size: 2.2rem;
    margin-bottom: 1.5em;
    position: relative;
    padding-bottom: 15px;
    text-align: center;
    border-bottom: none;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
}

/* Challenge and Solution Sections */

.challenge-solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.challenge-card, .solution-card {
    background-color: var(--secondary-dark);
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.challenge-card:hover, .solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.35);
}

.challenge-card::before, .solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
}

.challenge-card::before {
    background: linear-gradient(to bottom, var(--error-red), var(--warning-yellow));
}

.solution-card::before {
    background: linear-gradient(to bottom, var(--primary-pink), var(--accent-orange));
}

.challenge-card h3, .solution-card h3 {
    color: var(--light-gray);
    margin-top: 0;
    font-size: 1.4rem;
    position: relative;
    padding-left: 15px;
    margin-bottom: 20px;
}

.challenge-card ul, .solution-card ul {
    padding-left: 20px;
    margin-top: 20px;
}

.challenge-card li, .solution-card li {
    margin-bottom: 10px;
    color: var(--light-gray);
    opacity: 0.9;
}

/* Results Section with Large Outcome Cards */

.results-section {
    text-align: center;
}

.large-outcome-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.large-outcome-card {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.15), rgba(255, 159, 28, 0.15));
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.large-outcome-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 107, 107, 0.3);
}

.large-outcome-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(255, 159, 28, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.large-outcome-card:hover::before {
    opacity: 1;
}

.large-outcome-value {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.large-outcome-label {
    font-size: 1.1rem;
    color: var(--light-gray);
    font-weight: 600;
    margin-bottom: 15px;
}

.large-outcome-description {
    color: var(--light-gray);
    opacity: 0.8;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Implementation Process Section */

.implementation-timeline {
    margin-top: 50px;
    position: relative;
    padding-left: 30px;
}

.implementation-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--primary-pink), var(--accent-orange));
    border-radius: 4px;
}

.timeline-item {
    position: relative;
    padding-bottom: 40px;
    padding-left: 30px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -18px;
    top: 0;
    width: 40px;
    height: 40px;
    background-color: var(--secondary-dark);
    border: 4px solid;
    border-image: linear-gradient(to bottom, var(--primary-pink), var(--accent-orange)) 1;
    border-radius: 50%;
    z-index: 1;
}

.timeline-item-content {
    background-color: var(--secondary-dark);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item-content:hover {
    transform: translateY(-5px) translateX(5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.35);
}

.timeline-item-content h3 {
    color: var(--light-gray);
    margin-top: 0;
    font-size: 1.4rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.timeline-item-content h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    transition: width 0.3s ease;
}

/* Testimonial Section */

.case-study-testimonial {
    background-color: var(--secondary-dark);
    padding: 50px;
    border-radius: 16px;
    margin-top: 60px;
    text-align: center;
    font-style: italic;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    overflow: hidden;
}

.case-study-testimonial::before {
    content: '"';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 100px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    font-family: Georgia, serif;
}

.case-study-testimonial:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.case-study-testimonial p {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--light-gray);
    margin-bottom: 25px;
}

.testimonial-author {
    font-style: normal;
    font-weight: 700;
    color: var(--primary-pink);
    position: relative;
    display: inline-block;
    padding: 8px 20px;
}

.testimonial-author::before {
    content: '';
    position: absolute;
    height: 3px;
    width: 40px;
    background: linear-gradient(to right, var(--primary-pink), var(--accent-orange));
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.testimonial-company {
    font-style: normal;
    font-size: 0.9rem;
    color: var(--light-gray);
    opacity: 0.7;
    margin-top: 5px;
}

/* Related Case Studies Section */

.related-case-studies {
    margin-top: 80px;
}

.related-case-studies h2 {
    text-align: center;
    margin-bottom: 40px;
}

.related-case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* CTA Section */

.case-study-cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    padding: 80px 20px;
    text-align: center;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.case-study-cta::before {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 40%;
    height: 120%;
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    opacity: 0.15;
    transform: rotate(15deg);
}

.case-study-cta-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.case-study-cta h2 {
    color: var(--light-gray);
    font-size: 2.4rem;
    margin-bottom: 20px;
}

.case-study-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--light-gray);
    opacity: 0.9;
}

.case-study-cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-pink), var(--accent-orange));
    color: var(--light-gray);
    padding: 15px 35px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.case-study-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
}

.case-study-cta-button:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-orange), var(--primary-pink));
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.case-study-cta-button:hover:before {
    opacity: 1;
}

/* Responsive Styles */

@media (max-width: 992px) {
    .case-studies-grid,
    .large-outcome-cards,
    .related-case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .challenge-solution-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .case-study-hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .case-study-meta {
        justify-content: center;
    }
    
    .case-study-hero-text {
        order: 1;
    }
    
    .case-study-hero-image {
        order: 0;
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .case-studies-header h1,
    .case-study-hero-text h1 {
        font-size: 2.5rem;
    }
    
    .case-studies-filter {
        padding: 20px;
    }
    
    .filter-options {
        gap: 10px;
    }
    
    .filter-option {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .case-study-testimonial {
        padding: 30px;
    }
    
    .case-study-testimonial p {
        font-size: 1.1rem;
    }
    
    .implementation-timeline {
        padding-left: 20px;
    }
    
    .timeline-item {
        padding-left: 20px;
    }
}

@media (max-width: 576px) {
    .case-studies-grid,
    .large-outcome-cards,
    .related-case-studies-grid {
        grid-template-columns: 1fr;
    }
    
    .case-studies-header h1,
    .case-study-hero-text h1 {
        font-size: 2rem;
    }
    
    .case-studies-header p,
    .case-study-hero-text p {
        font-size: 1.1rem;
    }
    
    .outcome-cards {
        flex-direction: column;
        gap: 10px;
    }
    
    .outcome-card {
        min-width: 100%;
    }
    
    .case-study-meta {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .large-outcome-value {
        font-size: 2.8rem;
    }
    
    .case-study-cta h2 {
        font-size: 2rem;
    }
}