/* Case Study Detail Pages */

.case-study-hero {
    margin-top: 70px;
    padding: 4rem 0 2.5rem;
    background: linear-gradient(135deg, rgba(102,126,234,0.06), rgba(118,75,162,0.06));
}

.breadcrumb {
    margin-bottom: 1.2rem;
    font-size: 0.88rem;
    color: var(--secondary-text);
}

.breadcrumb a {
    color: var(--accent-color);
    text-decoration: none;
}

.breadcrumb a:hover { text-decoration: underline; }

.case-study-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
}

.case-tag {
    background: var(--gradient-primary);
    color: white;
    padding: 0.25rem 0.9rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
}

.case-author {
    color: var(--secondary-text);
    font-size: 0.9rem;
}

.case-study-hero h1 {
    font-size: clamp(1.5rem, 4vw, 2.8rem);
    margin-bottom: 1.2rem;
    line-height: 1.3;
}

.case-study-body { padding: 3rem 0; }

.case-study-content {
    max-width: 900px;
    margin: 0 auto;
}

.case-study-content h2 {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.case-study-content p {
    color: var(--secondary-text);
    line-height: 1.9;
    margin-bottom: 1rem;
    font-size: 1rem;
}

/* Architecture Diagram */
.architecture-diagram {
    margin: 1.5rem 0 2.5rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.architecture-diagram img {
    width: 100%;
    height: auto;
    display: block;
}

.diagram-caption {
    text-align: center;
    padding: 0.8rem 1rem;
    background: var(--secondary-bg);
    font-size: 0.85rem;
    color: var(--secondary-text);
    font-style: italic;
    margin-bottom: 0;
}

/* Challenge Cards */
.challenge-card {
    background: white;
    border-left: 4px solid var(--accent-color);
    padding: 1.2rem 1.5rem;
    margin-bottom: 1.2rem;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 3px 15px rgba(0,0,0,0.06);
}

.challenge-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
    color: var(--primary-text);
}

.challenge-card p { margin-bottom: 0; }

/* Solutions Grid */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: 1.2rem;
    margin: 1.5rem 0;
}

.solution-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.07);
    transition: transform 0.3s;
}

.solution-item:hover { transform: translateY(-3px); }

.solution-item h4 {
    color: var(--accent-color);
    margin-bottom: 0.6rem;
    font-size: 1.05rem;
}

.solution-item p { margin-bottom: 0; font-size: 0.93rem; }

/* Impact Grid */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
    gap: 1.2rem;
    margin: 1.5rem 0;
}

.impact-item {
    background: linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.05));
    padding: 1.2rem;
    border-radius: 12px;
    border: 1px solid rgba(102,126,234,0.1);
}

.impact-item h4 {
    color: var(--accent-color);
    margin-bottom: 0.4rem;
    font-size: 1rem;
}

.impact-item p { margin-bottom: 0; font-size: 0.93rem; }

/* Tech Stack */
.tech-stack-section {
    margin: 2.5rem 0;
    padding: 1.5rem;
    background: var(--secondary-bg);
    border-radius: 12px;
}

.tech-stack-section h3 { margin-bottom: 1rem; font-size: 1.1rem; }

/* ===== PROFILE CARD ===== */
.profile-card {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    padding: 1.5rem;
    margin: 2.5rem 0;
    background: linear-gradient(135deg, #f8f9ff, #f0f2ff);
    border-radius: 16px;
    border: 1px solid rgba(102,126,234,0.15);
    box-shadow: 0 8px 30px rgba(102,126,234,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.profile-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(102,126,234,0.12);
}

.profile-card-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.12);
    flex-shrink: 0;
}

.profile-card-body { flex: 1; min-width: 0; }

.profile-card-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-text);
    margin-bottom: 0.15rem;
}

.profile-card-role {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.6rem;
}

.profile-card-bio {
    font-size: 0.88rem !important;
    color: var(--secondary-text) !important;
    line-height: 1.6 !important;
    margin-bottom: 0.8rem !important;
}

.profile-card-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.profile-card-links a {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.profile-card-links a:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102,126,234,0.3);
}

.author-box { display: none; }

/* Case Study Nav */
.case-study-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    gap: 1rem;
    flex-wrap: wrap;
}

.case-study-nav a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    padding: 0.7rem 1.2rem;
    border-radius: 25px;
    border: 2px solid var(--accent-color);
    transition: all 0.3s;
    font-size: 0.9rem;
    white-space: nowrap;
}

.case-study-nav a:hover {
    background: var(--accent-color);
    color: white;
}

/* ===== CASE STUDY RESPONSIVE ===== */
@media (max-width: 768px) {
    .case-study-hero {
        margin-top: 65px;
        padding: 2.5rem 0 2rem;
    }

    .solutions-grid,
    .impact-grid {
        grid-template-columns: 1fr;
    }

    .profile-card {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
    }

    .profile-card-avatar {
        width: 80px;
        height: 80px;
    }

    .profile-card-links {
        justify-content: center;
    }

    .case-study-nav {
        flex-direction: column;
        text-align: center;
    }

    .case-study-nav a {
        display: block;
    }

    .challenge-card {
        padding: 1rem 1.2rem;
    }
}

@media (max-width: 480px) {
    .case-study-hero {
        padding: 2rem 0 1.5rem;
    }

    .case-study-body {
        padding: 2rem 0;
    }

    .solution-item,
    .impact-item {
        padding: 1rem;
    }

    .tech-stack-section {
        padding: 1rem;
    }

    .profile-card {
        gap: 1rem;
    }
}