/* ========================================================================
   SMG CASE STUDIES WIDGET
   Referenzen-Karten mit Filtern und Hover-Effekten
   ======================================================================== */

.smg-case-studies-widget {
    padding: 4rem 0;
}

/* Section Header */
.smg-section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.smg-section-title {
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.smg-section-subtitle {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* Filter Buttons */
.smg-case-studies-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.smg-filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e5e7eb;
    background: white;
    color: #374151;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.smg-filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.smg-filter-btn:hover::before {
    left: 100%;
}

.smg-filter-btn:hover,
.smg-filter-btn.active {
    background: var(--primary-red);
    color: white;
    border-color: var(--primary-red);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
}

/* Alternative: Use smg-btn classes */
.smg-case-studies-filters .smg-btn {
    margin: 0 0.5rem 0.5rem 0;
}

/* Grid Container */
.smg-case-studies-container {
    display: grid;
    gap: 2rem;
}

.smg-case-studies-container.grid.columns-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.smg-case-studies-container.grid.columns-3 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.smg-case-studies-container.grid.columns-4 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Case Study Cards */
.smg-case-study-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-base);
}

.smg-case-study-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Card Image */
.smg-case-study-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.smg-case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.smg-case-study-card:hover .smg-case-study-image img {
    transform: scale(1.05);
}

/* Overlay */
.smg-case-study-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.9) 0%, rgba(31, 41, 55, 0.7) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.smg-case-study-card:hover .smg-case-study-overlay {
    opacity: 1;
}

/* Card Content */
.smg-case-study-content {
    padding: 2rem;
    text-align: center;
    color: white;
}

.smg-case-study-title {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.smg-case-study-client {
    color: var(--accent-blue);
    font-weight: 600;
    margin-bottom: 1rem;
}

.smg-case-study-quote {
    font-style: italic;
    margin: 1rem 0;
    color: rgba(255, 255, 255, 0.9);
}

/* Statistics */
.smg-case-study-stats {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1.5rem 0;
}

.smg-stat {
    text-align: center;
}

.smg-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.smg-stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Case Study Link */
.smg-case-study-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    transition: gap var(--transition-base);
}

.smg-case-study-link:hover {
    gap: 0.8rem;
}

/* Case Studies ohne Bild */
.smg-case-study-content-only {
    padding: 2rem;
    background: white;
    border-radius: 15px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid #e5e7eb;
    transition: all var(--transition-base);
}

.smg-case-study-card:hover .smg-case-study-content-only {
    border-color: var(--primary-red);
    box-shadow: 0 10px 30px rgba(220, 38, 38, 0.1);
}

.smg-case-study-content-only .smg-case-study-title {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.smg-case-study-content-only .smg-case-study-client {
    color: var(--primary-red);
    font-weight: 600;
    margin-bottom: 1rem;
}

.smg-case-study-excerpt {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.smg-case-study-content-only .smg-case-study-quote {
    color: var(--primary-dark);
    border-left: 3px solid var(--primary-red);
    padding-left: 1rem;
    margin: 1rem 0;
    font-style: italic;
}

.smg-case-study-content-only .smg-case-study-link {
    color: var(--primary-red);
    margin-top: auto;
    padding-top: 1rem;
}

/* RESPONSIVE STYLES
   ======================================================================== */

@media (max-width: 768px) {
    .smg-case-studies-container.grid {
        grid-template-columns: 1fr;
    }

    .smg-case-studies-filters {
        justify-content: center;
        gap: 0.75rem;
    }

    .smg-filter-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    .smg-case-study-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .smg-section-title,
    .smg-case-study-title {
        font-size: 1.25rem;
    }

    .smg-case-study-content {
        padding: 1rem;
    }

    .smg-case-study-image {
        height: 250px;
    }
}