/**
 * Case Studies Page Styles
 * Professional layout matching features/pricing design pattern
 */

/* Hero Section - matching features/pricing style */
.case-studies-hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.case-studies-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(2, 132, 199, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.case-studies-hero__content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    z-index: 1;
}

.case-studies-hero__content::before {
    content: '';
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #0ea5e9, #0284c7);
    border-radius: 2px;
}

.case-studies-hero__title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
    line-height: 1.3;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #1e293b 0%, #475569 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.case-studies-hero__subtitle {
    font-size: 1.25rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.case-studies-hero__stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.case-studies-hero__stat {
    text-align: center;
}

.case-studies-hero__stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #0ea5e9;
    margin-bottom: 8px;
}

.case-studies-hero__stat-label {
    font-size: 0.875rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Featured Case Study - Professional Design */
.case-study-featured {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.case-study-featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(14, 165, 233, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(2, 132, 199, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.case-study-featured__container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.case-study-featured__content {
    padding: 40px 0;
}

.case-study-featured__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.case-study-featured__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    line-height: 1.2;
}

.case-study-featured__company {
    font-size: 1.25rem;
    color: #0ea5e9;
    font-weight: 600;
    margin-bottom: 32px;
}

.case-study-featured__quote {
    font-size: 1.25rem;
    color: #374151;
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 32px;
    padding-left: 24px;
    border-left: 4px solid #0ea5e9;
    position: relative;
}

.case-study-featured__quote::before {
    content: '"';
    position: absolute;
    left: 4px;
    top: -8px;
    font-size: 3rem;
    color: #0ea5e9;
    font-family: serif;
    line-height: 1;
}

.case-study-featured__author {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.case-study-featured__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.case-study-featured__author-name {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 4px;
}

.case-study-featured__author-position {
    font-size: 0.875rem;
    color: #64748b;
}

.case-study-featured__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-study-featured__stat {
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
}

.case-study-featured__stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #0ea5e9;
    margin-bottom: 8px;
}

.case-study-featured__stat-label {
    font-size: 0.875rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.case-study-featured__visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.case-study-featured__image {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    transform: perspective(1000px) rotateY(-5deg);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 100px;
}

.case-study-featured__image:hover {
    transform: perspective(1000px) rotateY(0deg) translateY(-10px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.2);
}

.case-study-featured__image img {
    width: 90%;
    height: auto;
    transition: transform 0.3s ease;
    opacity: 0.95;
}

.case-study-featured__image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-study-featured__image:hover .case-study-featured__image-overlay {
    opacity: 1;
}

.case-study-featured__overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.case-study-featured__industry {
    font-size: 0.875rem;
    font-weight: 600;
    color: #1e293b;
}

/* Case Studies Grid */
.case-studies-grid {
    padding: 80px 0;
    background: #f8fafc;
}

.case-studies-grid__header {
    text-align: center;
    margin-bottom: 60px;
}

.case-studies-grid__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
}

/* Filters */
.case-studies-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.case-studies-filter__btn {
    padding: 12px 24px;
    border: 2px solid #e2e8f0;
    background: transparent;
    color: #64748b;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-studies-filter__btn:hover,
.case-studies-filter__btn--active {
    border-color: #0ea5e9;
    background: #0ea5e9;
    color: white;
    transform: translateY(-2px);
}

/* Case Study Cards - Premium Design */
.case-studies-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.case-study-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid #f1f5f9;
    position: relative;
}

.case-study-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-color: #e2e8f0;
}

.case-study-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 32px 32px 24px;
    border-bottom: 1px solid #f1f5f9;
}

.case-study-card__company {
    display: flex;
    align-items: center;
    gap: 16px;
}

.case-study-card__logo {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.case-study-card__logo img {
    width: 32px;
    height: 32px;
    opacity: 0.9;
}

.case-study-card__company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.case-study-card__industry {
    font-size: 0.875rem;
    color: #64748b;
    font-weight: 500;
}

.case-study-card__results-preview {
    text-align: right;
}

.case-study-card__main-result {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border: 1px solid #bae6fd;
    border-radius: 12px;
    padding: 12px 16px;
    text-align: center;
    min-width: 100px;
}

.case-study-card__result-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #0ea5e9;
    margin-bottom: 2px;
}

.case-study-card__result-label {
    font-size: 0.75rem;
    color: #0369a1;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.case-study-card__content {
    padding: 32px;
}

.case-study-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
    color: #1e293b;
    margin-bottom: 20px;
}

.case-study-card__quote {
    font-size: 1rem;
    line-height: 1.6;
    color: #374151;
    margin-bottom: 24px;
    font-style: italic;
    padding-left: 16px;
    border-left: 3px solid #0ea5e9;
    position: relative;
}

.case-study-card__quote::before {
    content: '"';
    position: absolute;
    left: 8px;
    top: -4px;
    font-size: 1.5rem;
    color: #0ea5e9;
    font-family: serif;
}

.case-study-card__author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
}

.case-study-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.case-study-card__author-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2px;
}

.case-study-card__author-position {
    font-size: 0.75rem;
    color: #64748b;
}

.case-study-card__metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.case-study-card__metric {
    text-align: center;
    padding: 16px;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.case-study-card__metric-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: #0ea5e9;
    margin-bottom: 4px;
}

.case-study-card__metric-label {
    font-size: 0.75rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* CTA Section - Softer Design matching pricing */
.case-studies-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.08) 0%, rgba(2, 132, 199, 0.12) 100%);
    color: #1e293b;
    text-align: center;
    position: relative;
}

.case-studies-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(2, 132, 199, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.case-studies-cta__content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.case-studies-cta__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
    color: #1e293b;
    background: linear-gradient(135deg, #1e293b 0%, #475569 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.case-studies-cta__subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: #64748b;
    line-height: 1.6;
}

.case-studies-cta__buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.case-studies-cta__btn {
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    min-width: 200px;
    justify-content: center;
}

.case-studies-cta__btn--primary {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: white;
    border: none;
}

.case-studies-cta__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(14, 165, 233, 0.4);
}

.case-studies-cta__btn--secondary {
    background: white;
    color: #0ea5e9;
    border: 2px solid #0ea5e9;
}

.case-studies-cta__btn--secondary:hover {
    background: #0ea5e9;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.3);
}

.case-studies-cta__guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.875rem;
    color: #64748b;
}

.case-studies-cta__guarantee svg {
    flex-shrink: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .case-study-featured__container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .case-study-featured__stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .case-studies-cards {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .case-studies-hero {
        padding: 60px 0 40px;
    }
    
    .case-studies-hero__title {
        font-size: 2rem;
    }
    
    .case-studies-hero__stats {
        gap: 24px;
        flex-direction: column;
        align-items: center;
    }
    
    .case-study-featured__title {
        font-size: 2rem;
    }
    
    .case-study-featured__stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .case-studies-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .case-study-card__header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .case-study-card__results-preview {
        align-self: stretch;
        text-align: left;
    }
    
    .case-study-card__main-result {
        width: 100%;
        text-align: center;
    }
    
    .case-studies-filter {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .case-studies-hero__title {
        font-size: 1.75rem;
    }
    
    .case-study-card__content,
    .case-study-card__header {
        padding: 20px;
    }
    
    .case-study-card__metrics {
        grid-template-columns: 1fr;
    }
    
    .case-studies-cta__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .case-studies-cta__guarantee {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}