/* ============================================
   Case Study Pages — Stylesheet
   ============================================ */

.case-hero {
    padding: 10rem 0 var(--space-2xl);
    position: relative;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.case-hero-container {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.case-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.92rem;
    color: var(--color-text-soft);
    margin-bottom: var(--space-lg);
    transition: color var(--transition), gap var(--transition);
}

.case-back:hover {
    color: var(--color-text);
    gap: 0.8rem;
}

.case-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.case-meta-tag {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-mute);
    padding: 0.3rem 0.7rem;
    background: var(--color-bg-alt);
    border-radius: 100px;
    border: 1px solid var(--color-border);
}

.case-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.75rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.case-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-soft);
    line-height: 1.65;
    max-width: 720px;
    margin-bottom: var(--space-lg);
}

.case-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.case-fact {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.case-fact-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-mute);
}

.case-fact-value {
    font-size: 1rem;
    color: var(--color-text);
    font-weight: 500;
}

/* Content */

.case-content {
    padding: var(--space-2xl) 0;
}

.case-content-container {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.case-section {
    margin-bottom: var(--space-2xl);
}

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

.case-section-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-soft);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-section-label::before {
    content: '';
    width: 2rem;
    height: 1px;
    background: var(--color-text-soft);
}

.case-section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.65rem, 3vw, 2.4rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.case-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-soft);
    margin-bottom: var(--space-md);
}

.case-content p strong {
    color: var(--color-text);
    font-weight: 600;
}

.case-content p a,
.case-content li a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color var(--transition);
}

.case-content p a:hover,
.case-content li a:hover {
    color: var(--color-highlight);
}

a.showcase-item {
    text-decoration: none;
    color: white;
}

a.showcase-item:hover {
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.25);
}

.case-content h3 {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 600;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.case-content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: var(--space-md);
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.case-content ul {
    list-style: none;
    margin-bottom: var(--space-md);
    padding-left: 0;
}

.case-content ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    color: var(--color-text-soft);
    line-height: 1.7;
}

.case-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 0.6rem;
    height: 1px;
    background: var(--color-text-soft);
}

.case-content ul ul {
    margin-top: 0.5rem;
    margin-bottom: 0;
    padding-left: var(--space-md);
}

.case-callout {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
}

.case-callout-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.case-callout p {
    color: var(--color-text);
    margin-bottom: 0;
    font-size: 1.05rem;
    line-height: 1.7;
}

.case-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.case-stat-box {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: left;
}

.case-stat-value {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    line-height: 1;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.case-stat-label {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    line-height: 1.4;
}

.case-table-wrapper {
    overflow-x: auto;
    margin: var(--space-md) 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.case-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.case-table th,
.case-table td {
    padding: 0.85rem var(--space-sm);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.case-table th {
    background: var(--color-bg-alt);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.case-table tbody tr:last-child td {
    border-bottom: none;
}

.case-table tbody tr:hover {
    background: var(--color-bg-alt);
}

.case-table .positive {
    color: #16a34a;
    font-weight: 600;
}

.case-table .negative {
    color: #dc2626;
    font-weight: 600;
}

/* Two column section */

.case-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.case-col {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.case-col h4 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.case-col-pros h4 { color: #16a34a; }
.case-col-cons h4 { color: #dc2626; }

/* SWOT grid */

.swot-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.swot-block {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.swot-block h4 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0 0 var(--space-sm) 0;
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.swot-strengths h4 { border-color: #16a34a; }
.swot-weaknesses h4 { border-color: #dc2626; }
.swot-opportunities h4 { border-color: #2563eb; }
.swot-threats h4 { border-color: #d97706; }

/* Case nav (next/prev) */

.case-nav {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) 0;
}

.case-nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.case-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: var(--space-lg);
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.case-nav-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px -15px rgba(0, 0, 0, 0.15);
    border-color: var(--color-text);
}

.case-nav-link-right {
    text-align: right;
}

.case-nav-direction {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-soft);
}

.case-nav-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

/* Methodology List */

.methodology-list {
    counter-reset: methodology;
    list-style: none !important;
    padding-left: 0 !important;
}

.methodology-list li {
    counter-increment: methodology;
    position: relative;
    padding-left: 3rem !important;
    margin-bottom: var(--space-md);
}

.methodology-list li::before {
    content: counter(methodology, decimal-leading-zero) !important;
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent);
    background: none !important;
    width: auto !important;
    height: auto !important;
}

/* Featured visual hero for case studies */

.case-feature-image {
    width: 100%;
    aspect-ratio: 21 / 9;
    border-radius: var(--radius-lg);
    margin: var(--space-lg) 0 var(--space-md);
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(2rem, 6vw, 4.5rem);
    letter-spacing: -0.02em;
    text-align: center;
    padding: var(--space-lg);
}

.case-feature-image span {
    position: relative;
    z-index: 1;
}

.case-feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.1), rgba(0,0,0,0.4));
    pointer-events: none;
}

/* Case-specific gradients */

.gradient-esports { background: linear-gradient(135deg, #0a2540 0%, #1e4976 50%, #4a90e2 100%); }
.gradient-bmw { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.gradient-bunny { background: linear-gradient(135deg, #7209b7 0%, #4361ee 50%, #4cc9f0 100%); }
.gradient-ctek { background: linear-gradient(135deg, #006466 0%, #065a60 50%, #0b525b 100%); }
.gradient-flip { background: linear-gradient(135deg, #2b2d42 0%, #8d99ae 100%); }
.gradient-llbean { background: linear-gradient(135deg, #1b4332 0%, #2d6a4f 50%, #74c69d 100%); }
.gradient-reebok { background: linear-gradient(135deg, #e63946 0%, #d62828 50%, #003049 100%); }
.gradient-starbucks { background: linear-gradient(135deg, #1e3a2f 0%, #006241 50%, #00754a 100%); }
.gradient-blue { background: linear-gradient(135deg, #0c4a6e 0%, #075985 50%, #0369a1 100%); }

/* Visual showcase grids for esports */

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.showcase-item {
    aspect-ratio: 9 / 16;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-md);
    color: white;
    transition: transform var(--transition);
}

.showcase-item:hover {
    transform: scale(1.02);
}

.showcase-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.7) 100%);
    pointer-events: none;
}

.showcase-item-content {
    position: relative;
    z-index: 1;
}

.showcase-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.showcase-meta {
    font-size: 0.82rem;
    opacity: 0.85;
}

.showcase-1 { background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045); }
.showcase-2 { background: linear-gradient(135deg, #0d324d, #7f5a83); }
.showcase-3 { background: linear-gradient(135deg, #ff6a3d, #ff0050); }
.showcase-4 { background: linear-gradient(135deg, #0a2540, #1e4976); }
.showcase-5 { background: linear-gradient(135deg, #2c003e, #00bfff); }
.showcase-6 { background: linear-gradient(135deg, #ee0979, #ff6a00); }

/* Responsive */

@media (max-width: 760px) {
    .case-two-col,
    .swot-grid,
    .case-nav-container {
        grid-template-columns: 1fr;
    }

    .case-nav-link-right {
        text-align: left;
    }

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

    .case-hero {
        padding-top: 7rem;
    }
}

@media (max-width: 480px) {
    .showcase-grid {
        grid-template-columns: 1fr;
    }

    .case-feature-image {
        aspect-ratio: 4 / 3;
    }
}