/* Solar Portfolio Section Styles */
.solar-portfolio {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

.solar-portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
}

/* Solar Overview Stats */
.solar-overview {
    margin-bottom: 60px;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.overview-stat {
    background: white;
    padding: 30px 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,102,204,0.1);
}

.overview-stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,102,204,0.15);
}

.overview-stat .stat-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.overview-stat .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    line-height: 1;
}

.overview-stat .stat-unit {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-left: 5px;
}

.overview-stat .stat-label {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-top: 8px;
    display: block;
    font-weight: 500;
}

/* Solar Projects Grid */
.solar-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.solar-project-type {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 6px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,102,204,0.1);
}

.solar-project-type:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0,102,204,0.15);
}

.project-type-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.type-icon {
    font-size: 2rem;
    margin-right: 15px;
}

.type-title {
    flex-grow: 1;
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.type-count {
    background: rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.project-type-content {
    padding: 30px;
}

.type-specs {
    margin-bottom: 25px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

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

.spec-label {
    font-weight: 500;
    color: var(--text-dark);
}

.spec-value {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.type-description p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* Technical Skills Grid */
.technical-skills {
    display: grid;
    gap: 20px;
}

.tech-skill {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: background-color 0.3s ease;
}

.tech-skill:hover {
    background: #e9ecef;
}

.skill-icon {
    font-size: 1.5rem;
    margin-top: 2px;
}

.skill-name {
    font-weight: 600;
    color: var(--text-dark);
    display: block;
    margin-bottom: 5px;
}

.skill-desc {
    font-size: 0.9rem;
    color: #666;
}

/* Business Value Section */
.solar-business-value {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 6px 25px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,102,204,0.1);
}

.value-title {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.value-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.value-point {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.point-icon {
    font-size: 2rem;
    margin-top: 5px;
    flex-shrink: 0;
}

.point-content h4 {
    margin: 0 0 10px 0;
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 600;
}

.point-content p {
    margin: 0;
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Featured Project Styling */
.project-card.featured-project {
    border: 3px solid var(--secondary-color);
    position: relative;
}

.project-card.featured-project::before {
    content: 'PRIMARY EXPERTISE';
    position: absolute;
    top: -12px;
    left: 20px;
    background: var(--secondary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.project-card.featured-project .project-status {
    background: linear-gradient(135deg, var(--secondary-color), #008833);
    color: white;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .solar-portfolio {
        padding: 60px 0;
    }

    .overview-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }

    .overview-stat {
        padding: 20px 15px;
    }

    .overview-stat .stat-value {
        font-size: 2rem;
    }

    .solar-projects-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .project-type-header {
        padding: 20px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .type-icon {
        margin-right: 0;
        margin-bottom: 10px;
    }

    .project-type-content {
        padding: 20px;
    }

    .value-points {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .value-point {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .solar-business-value {
        padding: 30px 20px;
    }
}

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

    .overview-stat .stat-value {
        font-size: 1.8rem;
    }

    .type-title {
        font-size: 1.2rem;
    }

    .spec-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .tech-skill {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
}

/* Animation on scroll */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.solar-portfolio .overview-stat,
.solar-portfolio .solar-project-type,
.solar-portfolio .value-point {
    animation: fadeInUp 0.6s ease-out;
}

/* German Market specific styling */
.value-point:nth-child(2) .point-icon {
    color: #000;
    background: linear-gradient(45deg, #000, #dd0000, #ffce00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}