/* ================================
   CASE STUDY DETAIL PAGE STYLES
   Dark Hero + Full-width Presentation
================================ */

/* ── Hero Section ── */
.cs-detail-hero {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 50%, #000000 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.cs-detail-hero-noise {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

/* Breadcrumb */
.cs-detail-breadcrumb {
    margin-bottom: 32px;
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

.cs-detail-breadcrumb a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.3s ease;
}

.cs-detail-breadcrumb a:hover {
    color: #FFFFFF;
}

.cs-bc-sep {
    color: rgba(255, 255, 255, 0.3);
    margin: 0 8px;
}

.cs-bc-current {
    color: #FFFFFF;
    font-weight: 500;
}

/* Hero Content */
.cs-detail-hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

/* Client Logo */
.cs-detail-client-logo {
    margin-bottom: 28px;
}

.cs-detail-client-logo img {
    max-height: 60px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.cs-detail-client-logo img:hover {
    opacity: 1;
}

/* Hero Title */
.cs-detail-hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.1;
    margin-bottom: 20px;
}

.cs-detail-hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 28px;
}

/* Meta Info */
.cs-detail-meta {
    display: flex;
    gap: 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.cs-detail-meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cs-meta-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.cs-meta-value {
    font-size: 0.95rem;
    color: #FFFFFF;
    font-weight: 500;
}

/* Tags */
.cs-detail-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.cs-detail-tag {
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Visit Button */
.cs-detail-visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #FFFFFF;
    color: #141414;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.4s ease;
    border: 2px solid #FFFFFF;
}

.cs-detail-visit-btn:hover {
    background: transparent;
    color: #FFFFFF;
    transform: translateX(5px);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.15);
}

.cs-detail-visit-btn i {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.cs-detail-visit-btn:hover i {
    transform: translateX(4px);
}

/* ── Presentation Image Section ── */
.cs-detail-presentation {
    background: #F8F9FC;
    padding: 60px 0;
}

.cs-detail-image-wrap {
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

.cs-detail-full-image {
    width: 100%;
    height: auto;
    display: block;
}

/* ── Description Section ── */
.cs-detail-description {
    background: #FFFFFF;
    padding: 80px 0;
}

.cs-detail-section-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: #141414;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cs-detail-body {
    font-size: 1rem;
    color: #555555;
    line-height: 1.8;
}

.cs-detail-body p {
    margin-bottom: 16px;
}

/* ── Related Projects ── */
.cs-detail-related {
    background: #F8F9FC;
    padding: 80px 0;
}

.cs-detail-section-sub {
    font-size: 1rem;
    color: #666666;
    margin-bottom: 48px;
}

.cs-detail-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cs-related-card {
    background: #FFFFFF;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #E8ECF4;
    text-decoration: none;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
}

.cs-related-card:hover {
    transform: translateY(-8px);
    border-color: rgba(41, 98, 255, 0.3);
    box-shadow: 0 8px 32px rgba(41, 98, 255, 0.15);
}

.cs-related-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #F0F4FF;
}

.cs-related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.cs-related-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #c8d4f0;
}

.cs-related-body {
    padding: 20px 24px;
}

.cs-related-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #141414;
    margin-bottom: 8px;
}

.cs-related-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.cs-related-tag {
    padding: 3px 10px;
    border-radius: 50px;
    background: #F0F4FF;
    color: #2962FF;
    font-size: 0.72rem;
    font-weight: 600;
}

/* ── CTA Section ── */
.cs-detail-cta {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 50%, #000000 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cs-detail-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.cs-detail-cta::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 200px;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.cs-detail-cta-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cs-detail-cta-text {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.cs-detail-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #FFFFFF;
    color: #141414;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.4s ease;
    border: 2px solid #FFFFFF;
    position: relative;
    z-index: 1;
}

.cs-detail-cta-btn:hover {
    background: transparent;
    color: #FFFFFF;
    transform: translateX(5px);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.2);
}

.cs-detail-cta-btn i {
    transition: transform 0.3s ease;
}

.cs-detail-cta-btn:hover i {
    transform: translateX(5px);
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .cs-detail-hero {
        padding: 120px 0 60px;
    }

    .cs-detail-hero-title {
        font-size: 2.2rem;
    }

    .cs-detail-hero-subtitle {
        font-size: 1rem;
    }

    .cs-detail-meta {
        gap: 24px;
    }

    .cs-detail-presentation {
        padding: 40px 0;
    }

    .cs-detail-description {
        padding: 60px 0;
    }

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

@media (max-width: 575.98px) {
    .cs-detail-hero {
        padding: 110px 0 50px;
    }

    .cs-detail-hero-title {
        font-size: 1.8rem;
    }

    .cs-detail-client-logo img {
        max-height: 44px;
    }

    .cs-detail-meta {
        gap: 16px;
    }

    .cs-detail-meta-item {
        min-width: calc(50% - 8px);
    }

    .cs-detail-presentation {
        padding: 24px 0;
    }

    .cs-detail-image-wrap {
        border-radius: 10px;
    }

    .cs-detail-description {
        padding: 48px 0;
    }

    .cs-detail-section-title {
        font-size: 1.4rem;
    }

    .cs-detail-related {
        padding: 60px 0;
    }

    .cs-detail-related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

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

    .cs-detail-cta-title {
        font-size: 1.6rem;
    }

    .cs-detail-breadcrumb {
        font-size: 0.78rem;
    }
}