/* ====================================
   Project Case Study Page Styles
   Shared across all /projects/*.html
   ==================================== */

/* Hero */
.project-hero {
    min-height: 55vh;
    display: flex;
    align-items: center;
    padding: calc(var(--space-xl) * 2) 0 var(--space-xl);
    position: relative;
    overflow: hidden;
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse 80% 50% at 50% 0%,
        rgba(52, 211, 153, 0.06),
        transparent 60%
    );
    pointer-events: none;
}

.project-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.project-hero-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
    transition: all var(--duration-fast) var(--ease-out);
}

.project-hero-back:hover {
    color: var(--accent-1);
    gap: 0.75rem;
}

.project-hero-back svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-fast) var(--ease-out);
}

.project-hero-back:hover svg {
    transform: translateX(-3px);
}

.project-hero-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.project-hero-status {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.05em;
}

.project-hero-status--live {
    background: rgba(52, 211, 153, 0.12);
    color: var(--accent-1);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.project-hero-status--upcoming {
    background: rgba(129, 140, 248, 0.12);
    color: var(--accent-3);
    border: 1px solid rgba(129, 140, 248, 0.2);
}

.project-hero-type {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.project-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.project-hero-subtitle {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 650px;
}

.project-hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--space-lg);
    padding: 0.75rem 1.5rem;
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--accent-1);
    transition: all var(--duration-fast) var(--ease-out);
}

.project-hero-link:hover {
    background: rgba(52, 211, 153, 0.18);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(52, 211, 153, 0.15);
}

.project-hero-link svg {
    width: 16px;
    height: 16px;
}

/* Case Study Content */
.case-study {
    padding: var(--space-xl) 0;
}

.case-study-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-xl);
    align-items: start;
}

.case-study-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.case-study-section {
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.case-study-section-title {
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-study-section-title .cs-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-1);
}

.case-study-text {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

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

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

.case-study-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.case-study-list li {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 1.5rem;
    position: relative;
}

.case-study-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-1);
}

/* Sidebar */
.case-study-sidebar {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-md));
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.sidebar-card {
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.sidebar-card-title {
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.sidebar-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
}

.sidebar-detail {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.sidebar-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-detail-item:last-child {
    border-bottom: none;
}

.sidebar-detail-label {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-detail-value {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
}

.sidebar-note {
    font-size: var(--fs-sm);
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* Metrics Row */
.case-study-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
}

.metric-card {
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--duration-base) var(--ease-out);
}

.metric-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
}

.metric-value {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.3rem;
}

.metric-label {
    font-size: var(--fs-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* CTA Banner */
.case-study-cta {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.case-study-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(52, 211, 153, 0.06), transparent 60%);
    pointer-events: none;
}

.case-study-cta h3 {
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    position: relative;
}

.case-study-cta p {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

/* Responsive */
@media (max-width: 1024px) {
    .case-study-grid {
        grid-template-columns: 1fr;
    }

    .case-study-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .project-hero {
        min-height: auto;
        padding: calc(var(--space-xl) + 2rem) 0 var(--space-lg);
    }

    .case-study-metrics {
        grid-template-columns: 1fr 1fr;
    }
}