/**
 * Ömer Haluk Demirhan - Professional Portfolio
 * Main CSS File
 */

/* --------------------
   Variables
-------------------- */
:root {
    /* Colors */
    --primary-neon: #00f0ff;
    --secondary-neon: #ff0d6d;
    --dark-bg-primary: #121212;
    --dark-bg-secondary: #1e1e1e;
    --dark-bg-tertiary: #2d2d2d;
    --dark-surface: #333333;
    --dark-text-primary: #ffffff;
    --dark-text-secondary: rgba(255, 255, 255, 0.7);
    --dark-text-disabled: rgba(255, 255, 255, 0.5);
    
    /* Gradients */
    --neon-gradient: linear-gradient(90deg, var(--primary-neon), var(--secondary-neon));
    --dark-gradient: linear-gradient(120deg, var(--dark-bg-primary), var(--dark-bg-secondary));
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 3rem;
    
    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-pill: 50rem;
    
    /* Shadows */
    --shadow-neon-primary: 0 0 15px rgba(0, 240, 255, 0.5);
    --shadow-neon-secondary: 0 0 15px rgba(255, 13, 109, 0.5);
    --shadow-dark: 0 5px 15px rgba(0, 0, 0, 0.5);
    
    /* Animation */
    --transition-fast: 0.2s;
    --transition-medium: 0.4s;
    --transition-slow: 0.8s;
    
    /* Cursor */
    --cursor-size-default: 20px;
    --cursor-size-hover: 30px;
}

/* --------------------
   Reset & Base Styles
-------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

a {
    text-decoration: none;
    color: var(--primary-neon);
    transition: all var(--transition-fast) ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: 100px 0;
    position: relative;
}

/* --------------------
   Dark Theme
-------------------- */
body.dark-theme {
    background-color: var(--dark-bg-primary);
    color: var(--dark-text-primary);
}

.dark-theme h1, .dark-theme h2, .dark-theme h3, 
.dark-theme h4, .dark-theme h5, .dark-theme h6 {
    color: var(--dark-text-primary);
}

.dark-theme p {
    color: var(--dark-text-secondary);
}

.dark-theme .section-title {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.dark-theme .section-line {
    width: 80px;
    height: 3px;
    background: var(--neon-gradient);
    display: inline-block;
    margin: var(--spacing-md) 0;
    border-radius: var(--border-radius-pill);
}

.dark-theme .section-subtitle {
    color: var(--dark-text-secondary);
    font-size: 1.1rem;
    margin-top: var(--spacing-sm);
}

/* --------------------
   Custom Cursor
-------------------- */
body.custom-cursor-active {
    cursor: none;
}

.cursor-dot, .cursor-circle {
    pointer-events: none;
    position: fixed;
    top: 0;
    left: 0;
    border-radius: 50%;
    z-index: 9999;
    transform: translate(-50%, -50%);
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-neon);
    transition: transform 0.1s ease;
}

.cursor-dot.active {
    transform: translate(-50%, -50%) scale(0);
}

.cursor-circle {
    width: var(--cursor-size-default);
    height: var(--cursor-size-default);
    border: 2px solid var(--primary-neon);
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
}

.cursor-circle.active {
    width: var(--cursor-size-hover);
    height: var(--cursor-size-hover);
    border-color: var(--secondary-neon);
    mix-blend-mode: difference;
}

.cursor-circle.has-text::before {
    content: attr(data-cursor-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
    color: var(--primary-neon);
}

/* --------------------
   Particles Background
-------------------- */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* --------------------
   Header & Navigation
-------------------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-xs) 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-dark);
    transform: translateZ(0);
    will-change: transform;
    transition: none !important;
}

/* Remove scrolled transformation */
.main-header.scrolled {
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-dark);
    padding: var(--spacing-xs) 0;
    transform: translateZ(0) !important;
    transition: none !important;
}

/* Disable transitions on navigation elements */
.horizontal-nav,
.nav-items,
.nav-item a {
    transition: none !important;
}

.horizontal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-container {
    position: relative;
    width: 90px;
    height: 90px;
}

#logo-canvas {
    width: 100%;
    height: 100%;
}

.logo-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 1.8rem;
    color: var(--primary-neon);
    opacity: 0;
    transition: opacity var(--transition-medium) ease;
}

.nav-scroll-container {
    flex: 1;
    overflow-x: auto;
    white-space: nowrap;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
    text-align: center;
    padding: 0 var(--spacing-md);
}

.nav-scroll-container::-webkit-scrollbar {
    display: none;
}

.nav-items {
    display: inline-flex;
    gap: var(--spacing-xl);
    padding: 0 var(--spacing-md);
}

.nav-item {
    position: relative;
}

.nav-item a {
    color: var(--dark-text-secondary);
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-medium) ease;
}

.nav-item.active a, .nav-item a:hover {
    color: var(--dark-text-primary);
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-gradient);
    transition: width var(--transition-medium) ease;
}

.nav-item.active a::after, .nav-item a:hover::after {
    width: 100%;
}

.hamburger-menu {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-icon {
    width: 30px;
    height: 20px;
    position: relative;
}

.hamburger-icon span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--dark-text-primary);
    border-radius: 9px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: all var(--transition-medium) ease;
}

.hamburger-icon span:nth-child(1) {
    top: 0;
}

.hamburger-icon span:nth-child(2) {
    top: 9px;
}

.hamburger-icon span:nth-child(3) {
    top: 18px;
}

.hamburger-icon.active span:nth-child(1) {
    top: 9px;
    transform: rotate(135deg);
    background: var(--primary-neon);
}

.hamburger-icon.active span:nth-child(2) {
    opacity: 0;
    left: -60px;
}

.hamburger-icon.active span:nth-child(3) {
    top: 9px;
    transform: rotate(-135deg);
    background: var(--primary-neon);
}

/* --------------------
   Hero Section
-------------------- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 150px 0 80px;
    position: relative;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -1px;
    position: relative;
}

.glitch-text {
    position: relative;
    animation: glitch 5s infinite;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg-primary);
}

@keyframes glitch {
    0%, 100% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
}

.neon-text {
    font-size: 2rem;
    font-weight: 700;
    background: var(--neon-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-md);
}

.hero-content p.lead {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    color: var(--dark-text-secondary);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
}

.btn {
    padding: 12px 25px;
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--border-radius-pill);
    transition: all var(--transition-medium) ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--neon-gradient);
    z-index: -1;
    transition: opacity var(--transition-fast) ease;
    opacity: 1;
}

.btn-neon-primary {
    color: var(--dark-text-primary);
    border: none;
    box-shadow: var(--shadow-neon-primary);
}

.btn-neon-primary::before {
    opacity: 1;
}

.btn-neon-primary:hover {
    color: var(--dark-text-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-neon-primary), var(--shadow-dark);
}

.btn-neon-primary:hover::before {
    opacity: 0.8;
}

.btn-neon-secondary {
    color: var(--primary-neon);
    border: 2px solid var(--primary-neon);
    background: transparent;
    box-shadow: none;
}

.btn-neon-secondary::before {
    opacity: 0;
}

.btn-neon-secondary:hover {
    color: var(--dark-text-primary);
    box-shadow: var(--shadow-neon-primary);
    transform: translateY(-3px);
}

.btn-neon-secondary:hover::before {
    opacity: 1;
}

.cv-cube-container {
    position: relative;
    width: 100%;
    height: 400px;
}

/* --------------------
   About Section
-------------------- */
.about-section {
    background-color: var(--dark-bg-secondary);
    position: relative;
    overflow: hidden;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.stat-item {
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-medium) ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-item:hover {
    transform: translateY(-10px);
}

.stat-circle {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    position: absolute;
    top: 0;
    left: 0;
}

.stat-circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 5;
}

.stat-circle-progress {
    fill: none;
    stroke: url(#neon-gradient);
    stroke-width: 5;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 2s ease;
}

.stat-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-neon);
    font-family: 'Montserrat', sans-serif;
    line-height: 1;
    z-index: 1;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--dark-text-secondary);
    margin-top: var(--spacing-md);
    font-weight: 500;
}

/* --------------------
   Competencies Section
-------------------- */
.competencies-section {
    position: relative;
    background-color: var(--dark-bg-primary);
}

.competencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.competency-card {
    background-color: var(--dark-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-medium) ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.competency-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--neon-gradient);
    opacity: 0.05;
    transition: opacity var(--transition-medium) ease;
}

.competency-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-neon-primary);
}

.competency-card:hover::before {
    opacity: 0.1;
}

.competency-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    background: rgba(0, 240, 255, 0.1);
    transition: all var(--transition-medium) ease;
}

.competency-icon i {
    font-size: 1.8rem;
    color: var(--primary-neon);
    transition: all var(--transition-medium) ease;
}

.competency-card:hover .competency-icon {
    background: var(--neon-gradient);
}

.competency-card:hover .competency-icon i {
    color: var(--dark-text-primary);
}

.competency-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.competency-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.competency-list li {
    padding: var(--spacing-sm) 0;
    color: var(--dark-text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.competency-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-neon);
}

.toolkit-trigger {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 10px;
    height: 10px;
    opacity: 0;
    cursor: pointer;
    z-index: -1;
}

/* --------------------
   Projects Section
-------------------- */
.featured-projects-section {
    background-color: var(--dark-bg-secondary);
    position: relative;
}

.project-card {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-dark);
    transition: all var(--transition-medium) ease;
    cursor: pointer;
    height: 350px;
    perspective: 1000px;
}

.project-card:hover {
    transform: scale(1.03) rotateY(5deg);
    box-shadow: var(--shadow-neon-primary);
}

.project-image {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-medium) ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
    filter: brightness(0.7);
}

.project-details {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-xl);
    background: linear-gradient(to top, rgba(18, 18, 18, 0.9), rgba(18, 18, 18, 0.7));
    transform: translateY(0);
    transition: all var(--transition-medium) ease;
}

.project-card:hover .project-details {
    background: linear-gradient(to top, rgba(18, 18, 18, 0.95), rgba(18, 18, 18, 0.8));
    transform: translateY(-5px);
}

.project-details h3 {
    color: var(--dark-text-primary);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.project-details p {
    color: var(--primary-neon);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.project-link {
    color: var(--dark-text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    opacity: 0.8;
    transform: translateY(0);
    transition: all var(--transition-medium) ease;
}

.project-link::after {
    content: '→';
    margin-left: var(--spacing-sm);
    transition: transform var(--transition-fast) ease;
}

.project-card:hover .project-link {
    opacity: 1;
    transform: translateY(0);
}

.project-link:hover::after {
    transform: translateX(5px);
}

/* --------------------
   Footer
-------------------- */
.main-footer {
    background-color: var(--dark-bg-tertiary);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    position: relative;
}

.footer-info {
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 2rem;
    color: var(--primary-neon);
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.footer-links h3, .footer-social h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.footer-links h3::after, .footer-social h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--neon-gradient);
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-links ul li a {
    color: var(--dark-text-secondary);
    transition: all var(--transition-fast) ease;
}

.footer-links ul li a:hover {
    color: var(--primary-neon);
    padding-left: var(--spacing-sm);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--dark-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-text-secondary);
    transition: all var(--transition-medium) ease;
}

.social-icon:hover {
    background: var(--neon-gradient);
    color: var(--dark-text-primary);
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--dark-text-disabled);
    font-size: 0.9rem;
}

/* --------------------
   Easter Egg - Toolkit
-------------------- */
.toolkit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toolkit-content {
    background-color: var(--dark-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-neon-primary), var(--shadow-dark);
}

.toolkit-content h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-neon);
}

.toolkit-list {
    margin: var(--spacing-xl) 0;
}

.toolkit-list li {
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-left: 40px;
}

.toolkit-list li::before {
    content: attr(data-icon);
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.5rem;
}

.toolkit-list li strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--dark-text-primary);
}

.toolkit-list li span {
    font-size: 0.9rem;
    color: var(--dark-text-secondary);
}

.toolkit-close {
    background: var(--neon-gradient);
    color: var(--dark-text-primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-pill);
    font-weight: 500;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-medium) ease;
    display: block;
    margin: 0 auto;
}

.toolkit-close:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-neon-primary);
}

/* --------------------
   Skills Page Styles
-------------------- */
.skills-header {
    padding: 150px 0 80px;
    background-color: var(--dark-bg-primary);
}

.technical-skills-section {
    background-color: var(--dark-bg-secondary);
    padding: 80px 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.skill-category {
    background-color: var(--dark-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-dark);
    transition: all var(--transition-medium) ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-neon-primary);
}

.skill-category h3 {
    color: var(--primary-neon);
    margin-bottom: var(--spacing-lg);
    font-size: 1.4rem;
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-bar {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.skill-info span {
    color: var(--dark-text-secondary);
    font-size: 0.9rem;
}

.progress-line {
    height: 6px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-pill);
    position: relative;
    overflow: hidden;
}

.progress-line span {
    position: absolute;
    height: 100%;
    width: 0;
    background: var(--neon-gradient);
    border-radius: var(--border-radius-pill);
    transition: width 1.5s ease;
}

.professional-skills-section {
    background-color: var(--dark-bg-primary);
    padding: 80px 0;
}

.professional-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.skill-card {
    background-color: var(--dark-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-medium) ease;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--neon-gradient);
    opacity: 0.05;
    transition: opacity var(--transition-medium) ease;
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-neon-primary);
}

.skill-card:hover::before {
    opacity: 0.1;
}

.skill-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 240, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    transition: all var(--transition-medium) ease;
}

.skill-icon i {
    font-size: 1.8rem;
    color: var(--primary-neon);
    transition: all var(--transition-medium) ease;
}

.skill-card:hover .skill-icon {
    background: var(--neon-gradient);
}

.skill-card:hover .skill-icon i {
    color: var(--dark-text-primary);
}

.skill-card h3 {
    color: var(--dark-text-primary);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
}

.skill-card p {
    color: var(--dark-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.tools-section {
    background-color: var(--dark-bg-secondary);
    padding: 80px 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.tool-category {
    background-color: var(--dark-bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-medium) ease;
}

.tool-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-neon-primary);
}

.tool-category h3 {
    color: var(--primary-neon);
    margin-bottom: var(--spacing-lg);
    font-size: 1.4rem;
}

.tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tool-tag {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 240, 255, 0.1);
    border-radius: var(--border-radius-pill);
    color: var(--dark-text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition-medium) ease;
}

.tool-tag:hover {
    background: var(--neon-gradient);
    color: var(--dark-text-primary);
    transform: translateY(-2px);
}

/* Add animation for skill bars */
@keyframes fillBar {
    from {
        width: 0;
    }
    to {
        width: var(--percent);
    }
}

/* Responsive adjustments for skills page */
@media (max-width: 768px) {
    .skills-grid,
    .professional-skills-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-category,
    .skill-card,
    .tool-category {
        padding: var(--spacing-lg);
    }
}

/* --------------------
   Media Queries
-------------------- */
@media (max-width: 1200px) {
    .hero-content h1 {
        font-size: 3.2rem;
    }
    .neon-text {
        font-size: 1.8rem;
    }
}

@media (max-width: 992px) {
    /* Ensure fixed header on tablets */
    .main-header {
        position: fixed !important;
        transform: translateZ(0) !important;
        transition: none !important;
    }
    
    .nav-scroll-container {
        display: none;
    }
    
    .hamburger-menu {
        display: block;
    }
    
    .nav-items {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: auto;
        background: rgba(18, 18, 18, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: var(--spacing-md);
        max-height: 0;
        overflow: hidden;
        flex-direction: column;
        transform: translateZ(0);
        transition: none !important;
    }
    
    .nav-items.active {
        max-height: 400px;
        padding: var(--spacing-md);
    }
    
    .hero-section {
        padding-top: 120px;
    }
    
    .cv-cube-container {
        margin-top: 2rem;
    }
    
    .stats-container {
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    /* Ensure fixed header on mobile phones */
    .main-header {
        position: fixed !important;
        transform: translateZ(0) !important;
        transition: none !important;
    }

    body {
        padding-top: 70px !important;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .neon-text {
        font-size: 1.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stats-container {
        flex-direction: column;
        align-items: center;
    }
    
    .competencies-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .neon-text {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* SVG Gradient Definition */
svg {
    width: 0;
    height: 0;
    position: absolute;
}

defs {
    linearGradient#neon-gradient {
        stop {
            stop-color: var(--primary-neon);
        }
        stop {
            stop-color: var(--secondary-neon);
        }
    }
}

/* Services Section Styles */
.services-section {
    padding: 100px 0;
    background: var(--bg-darker);
    position: relative;
    overflow: hidden;
}

.service-card {
    background: var(--bg-dark);
    border: 1px solid var(--accent-color);
    border-radius: 15px;
    padding: 30px;
    height: 100%;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--accent-color), var(--secondary-accent));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.1);
}

.service-card:hover::before {
    opacity: 0.05;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-card h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
}

.service-list li {
    color: var(--text-muted);
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

@media (max-width: 768px) {
    .service-card {
        margin-bottom: 30px;
    }
}