/* ========================================
   Individual Case Study Page Styles
   ======================================== */

/* Header solid background */
.header {
    background: var(--color-dark);
}

/* ========================================
   Hero Section
   ======================================== */
.cs-hero {
    padding: 140px 20px 80px;
    text-align: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #5a328a 100%);
}

.cs-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.cs-hero-logo {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin: 0 auto 24px;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.cs-hero h1 {
    color: var(--color-teal);
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 16px;
    line-height: 1.2;
}

.cs-hero-summary {
    color: var(--color-light);
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    line-height: 1.6;
    opacity: 0.9;
}

/* ========================================
   Case Study Content Sections
   ======================================== */
.cs-section {
    padding: 80px 0;
}

.cs-section:nth-child(odd) {
    background: var(--color-white);
}

.cs-section:nth-child(even) {
    background: #f8f9fa;
}

.cs-section .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.cs-section h2 {
    color: var(--color-purple);
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    margin-bottom: 24px;
}

.cs-section p {
    color: var(--color-dark);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.8;
    margin-bottom: 20px;
}

.cs-section p:last-child {
    margin-bottom: 0;
}

/* ========================================
   Results Grid
   ======================================== */
.cs-results-grid {
    display: grid;
    gap: 24px;
    margin-top: 32px;
}

.cs-result-item {
    background: var(--color-white);
    border-radius: 12px;
    padding: 24px;
    border-left: 4px solid var(--color-teal);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.cs-result-stat {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-purple);
    margin-bottom: 8px;
}

.cs-result-desc {
    color: var(--color-dark);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

/* ========================================
   CTA Section
   ======================================== */
.cs-cta {
    padding: 80px 0;
    background: var(--color-purple);
    text-align: center;
}

.cs-cta h2 {
    color: var(--color-light);
    margin-bottom: 20px;
}

.cs-cta p {
    color: var(--color-light);
    max-width: 600px;
    margin: 0 auto 32px;
    font-size: 1.125rem;
    line-height: 1.6;
    opacity: 0.9;
}

.cs-cta .btn-primary {
    background: var(--color-teal);
    color: var(--color-dark);
    border-color: var(--color-teal);
}

.cs-cta .btn-primary:hover {
    background: var(--color-light);
    border-color: var(--color-light);
    color: var(--color-purple);
}

/* ========================================
   Back Link
   ======================================== */
.cs-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-light);
    font-size: 0.875rem;
    margin-bottom: 24px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.cs-back:hover {
    opacity: 1;
}

/* ========================================
   Responsive
   ======================================== */
@media (min-width: 768px) {
    .cs-results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .cs-hero {
        padding: 120px 20px 60px;
    }

    .cs-section {
        padding: 60px 0;
    }

    .cs-cta {
        padding: 60px 0;
    }
}