/* ==============================================
   DESKTOP-SPECIFIC ENHANCEMENTS (769px+)
   ============================================== */

/* ==============================================
   NAVIGATION ENHANCEMENTS
   ============================================== */

.nav-links a:hover {
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* ==============================================
   ENHANCED HOVER EFFECTS
   ============================================== */

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.skill-tag:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.timeline-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.3);
}

/* ==============================================
   SCROLL INDICATOR (DESKTOP ONLY)
   ============================================== */

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-light);
    animation: bounce 2s infinite;
    text-align: center;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { 
        transform: translateX(-50%) translateY(0); 
    }
    40% { 
        transform: translateX(-50%) translateY(-10px); 
    }
    60% { 
        transform: translateX(-50%) translateY(-5px); 
    }
}

/* ==============================================
   ADVANCED PARTICLE EFFECTS
   ============================================== */

.particle {
    opacity: 0.8;
}

.particle:nth-child(odd) {
    animation-duration: 8s;
}

.particle:nth-child(even) {
    animation-duration: 6s;
}

/* ==============================================
   ENHANCED TYPOGRAPHY
   ============================================== */

.hero h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.section-title {
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* ==============================================
   DESKTOP SKILL GRID LAYOUT
   ============================================== */

.skills-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.skill-category {
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.skill-category:hover::before {
    animation: shimmer 0.6s ease-in-out;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
        opacity: 0;
    }
}

/* ==============================================
   DESKTOP TIMELINE ENHANCEMENTS
   ============================================== */

.experience-timeline {
    padding-left: 3rem;
}

.timeline-item {
    cursor: pointer;
    position: relative;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(240, 147, 251, 0.05));
    border-radius: 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.timeline-item:hover::after {
    opacity: 1;
}

/* ==============================================
   DESKTOP CONTACT GRID
   ============================================== */

.contact-info {
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
}

.contact-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.contact-item::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 ease;
}

.contact-item:hover::before {
    left: 100%;
}

/* ==============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================== */

.section {
    will-change: transform, opacity;
}

.skill-category,
.timeline-item,
.contact-item {
    will-change: transform;
}

/* ==============================================
   LARGE SCREEN OPTIMIZATIONS (1200px+)
   ============================================== */

@media (min-width: 1200px) {
    .hero h1 {
        font-size: 5rem;
    }
    
    .hero .subtitle {
        font-size: 2.5rem;
    }
    
    .hero .description {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 3rem;
    }
    
    .content-section {
        padding: 4rem;
    }
}