/* Case study specific styles */

/* Navigation */
.nav-section {
    background-color: var(--bg-tertiary);
    padding: 20px;
    border-bottom: 1px solid var(--bg-accent);
}

.back-link {
    font-size: 1em;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    -webkit-transition: color 0.2s ease;
    -moz-transition: color 0.2s ease;
    -ms-transition: color 0.2s ease;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--link-primary);
}

.back-link::before {
    content: "← ";
}

/* Hero Section */
.hero-section {
    background-color: var(--bg-primary);
    padding: 80px 20px 60px;
}

.project-header {
    margin-bottom: 40px;
}

h1 {
    font-size: 2.4em;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.2;
}

.project-tagline {
    font-size: 1.2em;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 24px;
}

.project-meta {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 30px;
}

.meta-item {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
}

.meta-label {
    font-size: 0.85em;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.meta-value {
    font-size: 1.05em;
    color: var(--text-primary);
    font-weight: 600;
}

/* Content Sections */
.content-section {
    padding: 60px 20px;
}

.content-section.bg-secondary {
    background-color: var(--bg-secondary);
}

.content-section.bg-primary {
    background-color: var(--bg-primary);
}

.section h2 {
    font-size: 1.8em;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.section h3 {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 40px;
    margin-bottom: 16px;
}

.section p {
    font-size: 1.05em;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.section ul,
.section ol {
    font-size: 1.05em;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 24px;
    padding-left: 24px;
}

.section li {
    margin-bottom: 12px;
}

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

/* Highlight Box */
.highlight-box {
    background-color: var(--bg-tertiary);
    border-left: 3px solid var(--accent-blue);
    padding: 20px 24px;
    border-radius: 6px;
    margin: 30px 0;
}

.highlight-box p {
    margin: 0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin: 50px 0;
}

.stat-card {
    background: linear-gradient(
        135deg,
        var(--bg-tertiary) 0%,
        var(--bg-accent) 100%
    );
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(74, 144, 226, 0.2);
    text-align: center;
    position: relative;
    overflow: hidden;
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(
        90deg,
        var(--accent-blue) 0%,
        var(--accent-blue-lighter) 100%
    );
}

.stat-card:hover {
    -webkit-transform: translateY(-4px);
    -moz-transform: translateY(-4px);
    -ms-transform: translateY(-4px);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(74, 144, 226, 0.15);
    border-color: rgba(74, 144, 226, 0.4);
}

.stat-label {
    font-size: 1em;
    color: var(--text-light);
    line-height: 1.4;
    margin-bottom: 16px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 3.5em;
    font-weight: 800;
    background: linear-gradient(
        135deg,
        var(--accent-blue-light) 0%,
        var(--accent-blue-lighter) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0;
    line-height: 1.1;
}

/* Video Container */
.video-section {
    background-color: var(--bg-secondary);
    padding: 60px 20px;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: var(--bg-tertiary);
    border-radius: 6px;
    box-shadow: 0 4px 12px var(--shadow-dark);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Image Container */
.image-container {
    margin: 40px 0;
    text-align: center;
}

.image-container img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid var(--bg-accent);
    box-shadow: 0 4px 12px var(--shadow-dark);
}

.image-caption {
    font-size: 0.9em;
    color: var(--text-subtle);
    margin-top: 12px;
    font-style: italic;
}

/* Key Takeaways List */
.takeaways-list {
    list-style: none;
    padding: 0;
}

.takeaways-list li {
    background: var(--bg-tertiary);
    padding: 16px 20px;
    border-left: 3px solid var(--accent-blue);
    margin-bottom: 16px;
    border-radius: 4px;
}

.takeaways-list li::before {
    content: "✓ ";
    color: var(--accent-blue-light);
    font-weight: 700;
    margin-right: 8px;
}

/* Footer */
.footer-section {
    background-color: var(--bg-tertiary);
    padding: 50px 20px 30px;
}

.footer-links {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
}

.footer-links a {
    font-size: 1.1em;
}

.footnote {
    text-align: center;
    padding-top: 20px;
    font-size: 0.8em;
    color: var(--text-subtle);
}

/* Responsive overrides for case studies */
@media (max-width: 600px) {
    .project-meta {
        gap: 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}