/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Bai+Jamjuree:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swap');

:root {
    /* Dark Theme Color System */
    --color-bg-primary: rgb(5, 5, 5);
    --color-bg-secondary: rgb(15, 15, 15);
    --color-bg-tertiary: rgb(26, 26, 26);
    --color-bg-card: rgba(20, 20, 20, 0.95);
    --color-bg-card-elevated: rgba(30, 30, 30, 0.98);
    --color-bg-nav: rgba(15, 15, 15, 0.6);
    --color-bg-section: rgba(12, 12, 12, 0.8);
    
    /* Text Colors */
    --color-text-primary: rgb(230, 230, 230);
    --color-text-secondary: rgb(153, 153, 153);
    --color-text-muted: rgb(115, 115, 115);
    
    /* Accent Colors */
    --color-accent-purple: rgb(172, 153, 255);
    --color-accent-purple-light: rgb(214, 204, 255);
    --color-accent-purple-glow: rgba(172, 153, 255, 0.3);
    --color-accent-green: rgb(0, 204, 150);
    --color-accent-green-glow: rgba(0, 204, 150, 0.3);
    --color-white: rgb(255, 255, 255);
    
    /* Typography */
    --font-primary: 'Bai Jamjuree', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-pill: 30px;
    
    /* Enhanced Shadows for Depth */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    --shadow-xl: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
    --shadow-2xl: 0 19px 38px rgba(0, 0, 0, 0.30), 0 15px 12px rgba(0, 0, 0, 0.22);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    
    /* Glassmorphism Enhanced */
    --glass-bg: rgba(15, 15, 15, 0.6);
    --glass-bg-strong: rgba(15, 15, 15, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-strong: rgba(255, 255, 255, 0.15);
    --glass-blur: blur(9px);
    --glass-blur-strong: blur(12px);
    
    /* Elevation System */
    --elevation-0: 0;
    --elevation-1: 1;
    --elevation-2: 2;
    --elevation-3: 3;
    --elevation-4: 4;
    --elevation-5: 5;
    
    /* Animation Durations */
    --duration-fast: 0.15s;
    --duration-normal: 0.3s;
    --duration-slow: 0.5s;
    --duration-slower: 0.8s;
    
    /* Animation Easings */
    --ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
    --ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--duration-slow) var(--ease-out-cubic);
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-bg-tertiary);
    border-top: 3px solid var(--color-accent-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Page Entry Animations */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp var(--duration-slow) var(--ease-out-cubic) forwards;
}

.animate-in.delay-1 { animation-delay: 0.1s; }
.animate-in.delay-2 { animation-delay: 0.2s; }
.animate-in.delay-3 { animation-delay: 0.3s; }
.animate-in.delay-4 { animation-delay: 0.4s; }
.animate-in.delay-5 { animation-delay: 0.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger Animation for Grid Items */
.stagger-animate > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--duration-normal) var(--ease-out-cubic) forwards;
}

.stagger-animate > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animate > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animate > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animate > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-animate > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-animate > *:nth-child(6) { animation-delay: 0.6s; }
.stagger-animate > *:nth-child(7) { animation-delay: 0.7s; }
.stagger-animate > *:nth-child(8) { animation-delay: 0.8s; }

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Enhanced Container System */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Floating Navigation */
.navbar {
    position: fixed;
    top: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    padding: var(--space-sm) var(--space-lg);
    transition: all 0.3s ease;
    width: calc(100% - 2rem);
    max-width: 600px;
}

.nav-container {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-img {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.nav-logo h2 {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    position: relative;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--color-accent-purple);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: -var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--color-accent-purple);
    border-radius: 50%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
}

.bar {
    width: 18px;
    height: 2px;
    background: var(--color-text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
}

.hamburger.active .bar:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
}

/* Main Content */
main {
    margin-top: 0;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-text h1 {
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    color: var(--color-text-primary);
}

.hero-text .highlight {
    color: var(--color-accent-purple);
}

.hero-text h2 {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 400;
    font-family: var(--font-secondary);
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent-purple), var(--color-accent-purple-light));
    color: var(--color-bg-primary);
    border-color: var(--color-accent-purple);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent-purple);
    color: var(--color-accent-purple);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-circle {
    width: 400px;
    height: 400px;
    border-radius: var(--radius-xl);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    position: relative;
    margin: 0 auto;
}


.hero-logo {
    width: 380px;
    height: auto;
    object-fit: contain;
    z-index: 2;
    position: relative;
    transition: transform 0.3s ease;
}

.hero-logo:hover {
    transform: scale(1.05);
}

/* Section Styles */
section {
    padding: var(--space-4xl) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--color-text-primary);
}

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

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(172, 153, 255, 0.05), transparent 50%);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

.skills h3 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.skill-tag {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-color: var(--color-accent-purple);
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.skill-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.skill-item:nth-child(1) { animation-delay: 0.1s; }
.skill-item:nth-child(2) { animation-delay: 0.2s; }
.skill-item:nth-child(3) { animation-delay: 0.3s; }
.skill-item:nth-child(4) { animation-delay: 0.4s; }
.skill-item:nth-child(5) { animation-delay: 0.5s; }
.skill-item:nth-child(6) { animation-delay: 0.6s; }
.skill-item:nth-child(7) { animation-delay: 0.7s; }
.skill-item:nth-child(8) { animation-delay: 0.8s; }

.skill-item:hover {
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-color: var(--color-accent-purple);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.3);
}

.skill-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--color-accent-green);
    color: var(--color-bg-primary);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.skill-item:hover .skill-icon {
    background: var(--color-accent-green);
    transform: rotate(45deg);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .skill-item {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.85rem;
    }
    
    .skill-icon {
        width: 18px;
        height: 18px;
        font-size: 0.7rem;
    }
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.stat {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s ease;
}

.stat:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-purple);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.2);
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent-purple);
    margin-bottom: var(--space-xs);
}

.stat p {
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Projects Section */
.projects {
    background: var(--color-bg-primary);
    position: relative;
}

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(0, 204, 150, 0.05), transparent 50%);
    pointer-events: none;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-xl);
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-purple), var(--color-accent-green));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover::before {
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-purple);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.project-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-purple);
    font-size: 1.5rem;
    border: 1px solid var(--glass-border);
}

.project-links {
    display: flex;
    gap: var(--space-xs);
}

.project-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
}

.project-link:hover {
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-color: var(--color-accent-purple);
    transform: scale(1.1);
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.project-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.tech-tag {
    padding: 4px var(--space-sm);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
}

.project-stats {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.stat-item i {
    color: var(--color-accent-green);
}

/* Experience Section */
.experience {
    background: var(--color-bg-secondary);
    position: relative;
}

.experience::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(172, 153, 255, 0.03), transparent 50%);
    pointer-events: none;
}

.experience-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.experience-item {
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s ease;
}

.experience-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-purple);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.2);
}

.experience-date {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-radius: var(--radius-pill);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.8rem;
    margin-bottom: var(--space-md);
}

.experience-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.experience-content h4 {
    font-size: 1rem;
    color: var(--color-accent-green);
    margin-bottom: var(--space-md);
    font-weight: 500;
    font-family: var(--font-secondary);
}

.experience-content p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.experience-content ul {
    list-style: none;
    padding-left: 0;
}

.experience-content li {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    padding-left: var(--space-lg);
    position: relative;
    line-height: 1.6;
}

.experience-content li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-purple);
    font-weight: bold;
}

.education-section {
    margin-top: var(--space-3xl);
    text-align: center;
}

.education-section h3 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
}

.education-item {
    background: var(--color-bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    max-width: 500px;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.education-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-green);
    box-shadow: 0 8px 25px rgba(0, 204, 150, 0.2);
}

.education-content h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.education-content p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* Contact Section */
.contact {
    background: var(--color-bg-primary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(172, 153, 255, 0.05), transparent 50%);
    pointer-events: none;
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.contact-text p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-pill);
    font-family: var(--font-primary);
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.contact-link:hover {
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-color: var(--color-accent-purple);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.3);
}

.contact-link i {
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background: var(--color-bg-secondary);
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--glass-border);
}

/* Large Desktop Adjustments */
@media (min-width: 1440px) {
    .hero-content {
        max-width: 1300px;
        gap: var(--space-4xl);
    }
    
    .profile-circle {
        width: 450px;
        height: 450px;
    }
    
    .hero-logo {
        width: 420px;
    }
}

/* Medium Desktop */
@media (max-width: 1200px) {
    .container {
        max-width: 1200px;
        padding: 0 var(--space-lg);
    }
    
    .hero-content {
        max-width: 1000px;
        gap: var(--space-3xl);
        grid-template-columns: 1.1fr 0.9fr;
    }
    
    .profile-circle {
        width: 350px;
        height: 350px;
    }
    
    .hero-logo {
        width: 320px;
    }
    
    .hero-text p {
        max-width: 520px;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .navbar {
        padding: var(--space-xs) var(--space-lg);
        border-radius: 25px;
    }
    
    .nav-container {
        gap: var(--space-lg);
    }
    
    .nav-menu {
        gap: var(--space-md);
    }
    
    .hero-content {
        max-width: 900px;
        gap: var(--space-2xl);
    }
    
    .profile-circle {
        width: 320px;
        height: 320px;
    }
    
    .hero-logo {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .navbar {
        top: var(--space-md);
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        width: calc(100% - 2 * var(--space-md));
        padding: var(--space-sm) var(--space-lg);
        border-radius: var(--radius-lg);
    }
    
    .nav-container {
        justify-content: space-between;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--color-bg-secondary);
        width: calc(100% - var(--space-xl));
        margin: 0 var(--space-md);
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-xl);
        padding: var(--space-xl) 0;
        border-radius: var(--radius-lg);
        border: 1px solid var(--glass-border);
        backdrop-filter: var(--glass-blur);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: var(--space-md) 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
        max-width: 100%;
    }

    .hero-image {
        order: -1;
    }

    .profile-circle {
        width: 280px;
        height: 280px;
    }
    
    .hero-logo {
        width: 240px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .about-stats {
        flex-direction: row;
        justify-content: space-around;
        flex-wrap: wrap;
    }

    .stat {
        padding: var(--space-lg) var(--space-md);
        flex: 1;
        min-width: 120px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .contact-link {
        width: 250px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding: var(--space-3xl) 0;
        min-height: 80vh;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        justify-content: center;
    }

    .profile-circle {
        width: 220px;
        height: 220px;
    }
    
    .hero-logo {
        width: 180px;
    }

    .project-card {
        padding: var(--space-lg);
    }

    .about-stats {
        flex-direction: column;
        gap: var(--space-md);
    }

    section {
        padding: var(--space-3xl) 0;
    }
    
    .navbar {
        top: var(--space-sm);
        left: var(--space-sm);
        right: var(--space-sm);
    }
}

/* Smooth scrolling offset for fixed navbar */
section[id] {
    scroll-margin-top: 100px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-accent-purple);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-purple-light);
}

/* Floating Dock Navigation (Darko Style) */
.floating-dock {
    position: fixed;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.floating-dock.enhanced {
    bottom: var(--space-xl);
    transform: translateX(-50%) translateY(0) scale(1.05);
    opacity: 1;
    pointer-events: auto;
}

.dock-container {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    padding: var(--space-sm);
    box-shadow: 0px 0.6px 0.6px -1.25px rgba(0, 0, 0, 0.18), 
                0px 2.3px 2.3px -2.5px rgba(0, 0, 0, 0.16), 
                0px 10px 10px -3.75px rgba(0, 0, 0, 0.0625);
}

.dock-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.dock-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    transform: scale(1.1);
}

.dock-item.active {
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    box-shadow: 0 4px 12px rgba(172, 153, 255, 0.3);
}

.dock-item.active::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-accent-purple);
    border-radius: 50%;
}

.dock-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

.dock-icon svg {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
}

/* Sliding Skills Animation (Darko Style) */
.sliding-skills .skill-item {
    overflow: hidden;
    position: relative;
}

.sliding-skills .skill-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    white-space: nowrap;
}

.sliding-skills .skill-text {
    display: inline-block;
    animation: slideText 12s linear infinite;
    animation-delay: calc(var(--animation-delay, 0) * 1.5s);
}

.sliding-skills .skill-item:nth-child(1) .skill-text { --animation-delay: 0; }
.sliding-skills .skill-item:nth-child(2) .skill-text { --animation-delay: 1; }
.sliding-skills .skill-item:nth-child(3) .skill-text { --animation-delay: 2; }
.sliding-skills .skill-item:nth-child(4) .skill-text { --animation-delay: 3; }
.sliding-skills .skill-item:nth-child(5) .skill-text { --animation-delay: 4; }
.sliding-skills .skill-item:nth-child(6) .skill-text { --animation-delay: 5; }
.sliding-skills .skill-item:nth-child(7) .skill-text { --animation-delay: 6; }
.sliding-skills .skill-item:nth-child(8) .skill-text { --animation-delay: 7; }


.sliding-skills .skill-item:hover .skill-text {
    animation-play-state: paused;
}

.sliding-skills .skill-item:hover {
    transform: translateY(-2px) scale(1.02);
}


/* Security Research Section */
.research {
    background: var(--color-bg-primary);
    position: relative;
}

.research::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(172, 153, 255, 0.03), transparent 50%);
    pointer-events: none;
}

.research-project {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    backdrop-filter: var(--glass-blur);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.research-project:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-purple);
    box-shadow: 0 8px 25px rgba(172, 153, 255, 0.15);
}

.project-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.project-emoji {
    font-size: 3rem;
    line-height: 1;
    background: var(--color-bg-tertiary);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
}

.project-meta h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.project-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.project-year,
.project-type,
.project-impact {
    background: var(--color-bg-secondary);
    color: var(--color-accent-purple);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
}

.project-impact {
    background: var(--color-accent-green);
    color: var(--color-bg-primary);
    border-color: var(--color-accent-green);
}

.project-description {
    margin-bottom: var(--space-xl);
}

.project-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.project-description code {
    background: var(--color-bg-secondary);
    color: var(--color-accent-purple);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9em;
}

.technical-details {
    margin-bottom: var(--space-xl);
}

.technical-details h4,
.disclosure-process h4 {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.technical-details h4::before {
    content: '⚙️';
    font-size: 1.1em;
}

.disclosure-process h4::before {
    content: '🔒';
    font-size: 1.1em;
}

.technical-details ul,
.disclosure-process ul {
    list-style: none;
    padding: 0;
}

.technical-details li {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.technical-details li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent-purple);
    font-weight: bold;
}

.technical-details strong {
    color: var(--color-text-primary);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.result-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.result-item:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent-purple);
}

.result-icon {
    font-size: 1.5rem;
    line-height: 1;
    flex-shrink: 0;
}

.result-content h5 {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

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

.disclosure-process {
    margin-bottom: var(--space-xl);
}

.disclosure-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.disclosure-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.disclosure-step:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent-purple);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-accent-purple);
    color: var(--color-bg-primary);
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.step-content h5 {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

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

.research-significance {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-top: var(--space-2xl);
    position: relative;
    z-index: 2;
}

.research-significance h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.significance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.significance-item {
    text-align: center;
    padding: var(--space-lg);
}

.significance-item h4 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent-purple);
    margin-bottom: var(--space-sm);
}

.significance-item p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Mobile adjustments for research section */
@media (max-width: 768px) {
    .project-header {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
    
    .project-emoji {
        align-self: center;
        font-size: 2.5rem;
        padding: var(--space-md);
    }
    
    .results-grid,
    .significance-grid {
        grid-template-columns: 1fr;
    }
    
    .disclosure-steps {
        gap: var(--space-md);
    }
    
    .disclosure-step {
        padding: var(--space-md);
    }
}

/* Mobile adjustments for floating dock */
@media (max-width: 768px) {
    .floating-dock {
        bottom: var(--space-md);
    }
    
    .dock-container {
        gap: 4px;
        padding: var(--space-xs);
    }
    
    .dock-item {
        width: 40px;
        height: 40px;
    }
    
    .dock-icon svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .floating-dock {
        bottom: var(--space-sm);
    }
    
    .dock-item {
        width: 36px;
        height: 36px;
    }
    
    .dock-icon svg {
        width: 16px;
        height: 16px;
    }
}