/* ===================================
   Visual Enhancements
   Professional & Attractive Design
   =================================== */

/* Section Background Improvements */
.about {
    background: var(--color-secondary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), transparent);
}

.skills {
    background: var(--color-primary);
    position: relative;
}

.projects {
    background: var(--color-secondary);
    position: relative;
}

.experience {
    background: var(--color-primary);
    position: relative;
}

.contact {
    background: var(--color-secondary);
    position: relative;
}

/* Improved Hero Subtitle */
.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-accent-teal);
    font-weight: 600;
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    position: relative;
    display: inline-block;
}

.hero-subtitle::before,
.hero-subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40px;
    height: 2px;
    background: var(--gradient-accent);
}

.hero-subtitle::before {
    left: -50px;
}

.hero-subtitle::after {
    right: -50px;
}

/* Enhanced Skill Level Badges */
.skill-level {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    background: var(--color-glass);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.skill-level.advanced {
    color: #10b981;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

.skill-level.intermediate {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}

.skill-level.basic {
    color: #6366f1;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

/* Improved Skill Category Icons */
.skill-category-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

/* Enhanced Project Links */
.project-links a {
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.project-links a:hover {
    color: var(--color-accent-blue);
    transform: translateY(-2px);
}

.project-links svg {
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 0 4px rgba(33, 150, 243, 0));
    transition: filter var(--transition-fast);
}

.project-links a:hover svg {
    filter: drop-shadow(0 0 8px rgba(33, 150, 243, 0.6));
}

/* Timeline Date Enhancement */
.timeline-date {
    font-size: var(--text-sm);
    color: var(--color-accent-teal);
    font-weight: 700;
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Contact Icon Enhancement */
.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
    box-shadow: 0 8px 16px rgba(33, 150, 243, 0.3);
    transition: all var(--transition-base);
}

.contact-card:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 24px rgba(33, 150, 243, 0.5);
}

/* Language List Enhancement */
.contact-languages {
    text-align: center;
    padding: var(--space-8);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.language-item {
    padding: var(--space-2) var(--space-5);
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(255, 107, 107, 0.1) 100%);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    border: 1px solid rgba(33, 150, 243, 0.2);
    transition: all var(--transition-base);
}

.language-item:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.2) 0%, rgba(255, 107, 107, 0.2) 100%);
    border-color: rgba(33, 150, 243, 0.4);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

/* Social Icons Enhancement */
.hero-social a {
    position: relative;
    transition: all var(--transition-base);
}

.hero-social a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.hero-social a:hover::before {
    opacity: 1;
}

.social-icon {
    width: 24px;
    height: 24px;
    fill: var(--color-text-secondary);
    transition: all var(--transition-base);
    filter: drop-shadow(0 0 0 transparent);
}

.hero-social a:hover .social-icon {
    fill: var(--color-accent-blue);
    transform: scale(1.2) rotate(-5deg);
    filter: drop-shadow(0 0 8px rgba(33, 150, 243, 0.6));
}

/* Navbar Enhancement */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(10, 14, 39, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom-color: rgba(33, 150, 243, 0.2);
}

/* Nav Logo Enhancement */
.nav-logo {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.nav-logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.nav-logo:hover::after {
    transform: scaleX(1);
}

/* About Location Enhancement */
.about-location {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
    padding: var(--space-3) var(--space-6);
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(255, 107, 107, 0.1) 100%);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    border: 1px solid rgba(33, 150, 243, 0.2);
    transition: all var(--transition-base);
}

.about-location:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(33, 150, 243, 0.2);
    border-color: rgba(33, 150, 243, 0.4);
}

.location-icon {
    width: 18px;
    height: 18px;
    fill: var(--color-accent-blue);
    filter: drop-shadow(0 0 4px rgba(33, 150, 243, 0.4));
}

/* Scroll Indicator Enhancement */
.scroll-indicator {
    display: block;
    width: 2px;
    height: 40px;
    background: rgba(33, 150, 243, 0.2);
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-full);
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--gradient-accent);
    animation: scroll 2s infinite;
    border-radius: var(--radius-full);
}

/* Inline Code Enhancement */
.inline-code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.2em 0.5em;
    background: rgba(33, 150, 243, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-accent-teal);
    border: 1px solid rgba(33, 150, 243, 0.2);
    font-weight: 500;
}

/* Footer Enhancement */
.footer {
    background: var(--color-primary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-8) 0;
    text-align: center;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-blue), transparent);
}

/* Timeline Achievements Enhancement */
.timeline-achievements li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent-teal);
    font-size: 1.2em;
    font-weight: bold;
}

/* Improved About Intro */
.about-intro {
    font-size: var(--text-lg);
    color: var(--color-text-primary);
    margin-bottom: var(--space-6);
    line-height: 1.8;
    position: relative;
    padding-left: var(--space-6);
    border-left: 3px solid var(--color-accent-blue);
}

/* Responsive Enhancements */
@media (max-width: 768px) {
    .hero-subtitle::before,
    .hero-subtitle::after {
        display: none;
    }

    .about-intro {
        padding-left: var(--space-4);
        border-left-width: 2px;
    }
}

/* Performance and Accessibility */
@media (prefers-reduced-motion: reduce) {
    .timeline-dot {
        animation: none;
    }
}

/* Loading State for Images */
img {
    transition: opacity 0.3s ease;
}

img[data-src] {
    opacity: 0.5;
}

img.loaded {
    opacity: 1;
}

/* Selection Styling */
::selection {
    background: rgba(33, 150, 243, 0.3);
    color: var(--color-text-primary);
}

::-moz-selection {
    background: rgba(33, 150, 243, 0.3);
    color: var(--color-text-primary);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-primary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-accent-blue), var(--color-accent-orange));
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-accent-orange), var(--color-accent-blue));
}

/* Additional Visual Polish */
.hero-title {
    text-shadow: 0 0 40px rgba(33, 150, 243, 0.3);
}

.typewriter-text {
    text-shadow: 0 0 20px rgba(33, 150, 243, 0.2);
}

/* Contact Info Text Enhancement */
.contact-info h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-1);
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.contact-card:hover .contact-info h3 {
    color: var(--color-accent-blue);
}

/* Project Title Enhancement */
.project-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: 0;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.project-card:hover .project-title {
    color: var(--color-accent-blue);
    transform: translateX(4px);
}

/* Timeline Title Enhancement */
.timeline-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.timeline-content:hover .timeline-title {
    color: var(--color-accent-blue);
}