/* Content Hierarchy Improvements */

/* Enhanced Section Spacing */
section {
    padding: 5rem 0;
    margin-bottom: 2rem;
}

section:first-of-type {
    padding-top: 6rem;
}

section:last-of-type {
    margin-bottom: 0;
}

/* Consistent Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto;
}

/* Skills Section Improvements */
.skills-section {
    background: var(--bg-darker);
}

.skills-container {
    display: grid;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    padding: 2.5rem;
    transition: all var(--transition-normal) ease;
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-dark);
    border-color: var(--primary-color);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.category-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.category-header h3 {
    font-size: 1.3rem;
    margin: 0;
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-normal);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-normal) ease;
}

.skill-item:hover {
    background: var(--bg-card);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.skill-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: var(--radius-small);
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.skill-info {
    flex: 1;
}

.skill-info h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    color: var(--text-primary);
}

.skill-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 1s ease-in-out;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

.skill-percentage {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Portfolio Section Improvements */
.portfolio {
    background: var(--bg-dark);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-normal);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--bg-dark);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.portfolio-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition: all var(--transition-normal) ease;
    height: fit-content;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

.portfolio-content {
    padding: 1.5rem;
}

.project-category {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.portfolio-content h3 {
    font-size: 1.2rem;
    margin: 0 0 0.8rem 0;
    color: var(--text-primary);
}

.portfolio-content p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    font-size: 0.9rem;
}

/* About Section Improvements */
.about {
    background: var(--bg-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.about-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    padding: 3rem;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-size: 1rem;
}

.about-highlights {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-normal);
    transition: all var(--transition-normal) ease;
}

.highlight-item:hover {
    border-color: var(--primary-color);
    transform: translateX(8px);
}

.highlight-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.highlight-item h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    color: var(--text-primary);
}

.highlight-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Experience Section Improvements */
.experience {
    background: var(--bg-darker);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    margin-left: 3rem;
}

.timeline-marker {
    position: absolute;
    left: -4.5rem;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    z-index: 2;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    padding: 2rem;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 20px;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-right: 8px solid var(--border-color);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.timeline-header h3 {
    font-size: 1.3rem;
    margin: 0;
    color: var(--text-primary);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    background: var(--bg-darker);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-small);
    white-space: nowrap;
}

.timeline-content h4 {
    color: var(--text-secondary);
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-badge {
    background: var(--bg-darker);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-small);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Contact Section Improvements */
.contact {
    background: var(--bg-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: start;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-content {
        padding: 2rem;
    }
    
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        margin-left: 2rem;
    }
    
    .timeline-marker {
        left: -2.5rem;
        width: 40px;
        height: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Animation for content reveal */
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

[data-animate].animate-in {
    opacity: 1;
    transform: translateY(0);
}