:root {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --accent: #3eaf7c;
    --accent-hover: #4bc18d;
    --accent-secondary: #4d9de0;
    --accent-tertiary: #e6b31e;
    --border: #333;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --gradient-primary: linear-gradient(120deg, var(--accent) 0%, #2c8863 100%);
    --gradient-secondary: linear-gradient(120deg, var(--accent-secondary) 0%, #3173b1 100%);
    --gradient-tertiary: linear-gradient(120deg, var(--accent-tertiary) 0%, #d39e11 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
    position: relative;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent);
}

/* Header & Navigation */
header {
    padding: var(--spacing-md) 0;
    position: fixed;
    width: 100%;
    z-index: 100;
    background-color: var(--bg-primary);
    top: 0;
    left: 0;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: var(--spacing-md);
}

.nav-links a {
    position: relative;
}

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

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

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--spacing-lg);
    background: linear-gradient(rgba(18, 18, 18, 0.7), rgba(18, 18, 18, 0.9)), 
                url('images/wallpaper.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
}

#hero:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--bg-primary), transparent);
    z-index: 1;
}

.hero-content {
    max-width: 700px;
    padding: 0 var(--spacing-sm);
}

.hero-content p {
    font-size: 1.5rem;
    margin-top: var(--spacing-sm);
}

/* Sections */
section {
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
}

/* Portfolio Section */
.portfolio-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.portfolio-item {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 3px solid transparent;
    overflow: hidden;
    position: relative;
    animation: fadeIn 0.5s ease forwards;
    opacity: 0;
}

.portfolio-item:nth-child(odd) {
    border-top-color: var(--accent-secondary);
}

.portfolio-item:nth-child(even) {
    border-top-color: var(--accent-tertiary);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.portfolio-item:before {
    content: '';
    position: absolute;
    top: -200%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.05);
    transform: rotate(45deg);
    transition: all 0.4s ease;
}

.portfolio-item:hover:before {
    top: -100%;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-top: var(--spacing-sm);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    z-index: -1;
}

.btn:hover {
    color: white;
    border-color: transparent;
}

.btn:hover:before {
    left: 0;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, var(--accent-hover) 0%, var(--accent) 100%);
    transition: all 0.3s ease;
    z-index: -1;
    display: block;
}

.btn-primary:hover:before {
    left: 0;
}

.btn-primary:hover {
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Light theme specific button styles */
body.light-theme .btn-primary {
    color: #ffffff;
}

body.light-theme .btn-primary:hover {
    color: #ffffff;
}

/* Resume Section */
.resume-preview {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-top: var(--spacing-md);
}

.resume-section {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.resume-section h3 {
    display: inline-block;
    padding-bottom: 5px;
    position: relative;
}

.resume-section h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50%;
    height: 2px;
    background: var(--gradient-primary);
}

.resume-item {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
    transition: transform 0.3s ease;
}

.resume-item:hover {
    transform: translateX(5px);
}

.resume-item:last-child {
    border-bottom: none;
}

.resume-date {
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: 0.25rem;
    position: relative;
    display: inline-block;
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
}

.resume-date:before {
    content: '●';
    margin-right: 5px;
    color: var(--accent);
}

.skills-categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1rem;
}

.skill-category h4 {
    color: var(--accent);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 10px;
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
}

.skills-list li {
    background-color: var(--bg-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
}

.skills-list li:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.2;
    transition: all 0.3s ease;
    z-index: -1;
}

.skills-list li:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
}

.skills-list li:hover:before {
    left: 0;
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-md) 0;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    margin-top: var(--spacing-lg);
    background-color: var(--bg-secondary);
}

/* Enhanced Footer */
.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    text-align: left;
}

.footer-logo .logo {
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-social {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--accent);
    transform: translateY(-3px);
}

.footer-social i {
    font-size: 1.2rem;
}

.footer-bottom {
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}

.accent {
    color: var(--accent);
}

/* Media Queries for Responsive Design */
@media (max-width: 1024px) {
    .portfolio-items {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .portfolio-items {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: var(--spacing-md) 0;
    }
    
    
    .contact-methods {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .contact-item {
        width: 150px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-logo {
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-content p {
        font-size: 1.2rem;
    }
    
    .contact-methods {
        gap: var(--spacing-sm);
    }
    
    .contact-item {
        width: 130px;
        padding: var(--spacing-sm);
    }
    
    .resume-section h3 {
        font-size: 1.3rem;
    }
    
    .resume-item h4 {
        font-size: 1.1rem;
    }
    
    .stat-item {
        padding: var(--spacing-sm);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 350px) {
    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-item {
        width: 100%;
        max-width: 200px;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .skills-list li {
        padding: 0.3rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* Fix for very small height screens */
@media (max-height: 600px) {
    #hero {
        height: auto;
        min-height: 100vh;
        padding: calc(var(--spacing-lg) * 2) 0;
    }
}

/* Touch-friendly adjustments */
@media (hover: none) {
    .btn, .nav-links a, .contact-item {
        transition: none;
    }
    
    .btn:active, .portfolio-item:active, .contact-item:active {
        transform: scale(0.98);
    }
}

/* Improve header and navigation */
@media (max-width: 768px) {
    header {
        padding: var(--spacing-sm) 0;
    }
    
    nav {
        padding: 0 var(--spacing-sm);
    }
}

/* Ensure images don't overflow on small screens */
img {
    max-width: 100%;
    height: auto;
}

/* Ensure portfolio items stack properly on mobile */
@media (max-width: 480px) {
    .portfolio-item {
        padding: var(--spacing-sm);
    }
    
    .portfolio-icon {
        width: 48px;
        height: 48px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.nav-links a.active {
    color: var(--accent);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Adjust this selector to not affect btn-primary:hover */
.accent, .portfolio-icon, .resume-date, .contact-item i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.accent:hover, .portfolio-icon:hover, .resume-date:hover, .contact-item:hover i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Add subtle background pattern */
body:before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(125deg, var(--bg-primary) 0%, var(--bg-primary) 40%, rgba(30, 30, 30, 0.8) 40.1%, var(--bg-primary) 70%, var(--bg-primary) 100%);
    opacity: 0.4;
    z-index: -1;
    transition: background 0.3s ease;
}

/* Add back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 10;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* Add styles for CV download button */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-download i {
    font-size: 1.2rem;
}

/* Styling for "More to come" box */
.portfolio-item.more-to-come {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    border-top-color: var(--accent);
}

.portfolio-item.more-to-come h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: 8px;
    width: 150px;
    transition: all 0.3s ease;
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
}

.contact-item span {
    text-align: center;
    width: 100%;
    display: block;
    word-break: break-word;
    hyphens: auto;
    margin-top: var(--spacing-sm);
    line-height: 1.2;
}

.contact-item i {
    font-size: 2rem;
    color: var(--accent);
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
}

.contact-item:hover {
    transform: translateY(-5px);
    background-color: var(--bg-primary);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* Make about text use full width when stats move below */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "text"
            "stats";
    }
    
    .about-text {
        grid-area: text;
        margin-bottom: var(--spacing-md);
        width: 100%;
    }
    
    .about-stats {
        grid-area: stats;
        width: 100%;
    }
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.stat-item {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--gradient-primary);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Portfolio Icons */
.portfolio-icon {
    margin-bottom: var(--spacing-sm);
    transition: all 0.3s ease;
    animation: fadeIn 0.3s ease forwards;
    animation-fill-mode: both;
    opacity: 0;
    width: 64px;
    height: 64px;
}

.portfolio-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Theme-aware logo swap for portfolio cards */
.portfolio-icon .logo-light { display: none; }
body.light-theme .portfolio-icon .logo-dark { display: none; }
body.light-theme .portfolio-icon .logo-light { display: block; }

/* Larger logo for the GridVille card */
#project-gridville .portfolio-icon {
    width: 200px;
    height: 200px;
}

@media (max-width: 768px) {
    #project-gridville .portfolio-icon {
        width: 160px;
        height: 160px;
    }
}

@media (max-width: 480px) {
    #project-gridville .portfolio-icon {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 350px) {
    #project-gridville .portfolio-icon {
        width: 100px;
        height: 100px;
    }
}

/* Remove title for GridVille since logo serves as title */
#project-gridville h3 {
    display: none;
}

/* Reduce spacing specifically for GridVille card to match other cards */
#project-gridville .portfolio-icon {
    margin-bottom: -3rem !important;
}

#project-gridville p {
    margin-top: -3rem !important;
    margin-bottom: var(--spacing-sm);
}

/* Responsive adjustments for GridVille spacing */
@media (max-width: 768px) {
    #project-gridville .portfolio-icon {
        margin-bottom: -2rem !important;
    }
    
    #project-gridville p {
        margin-top: -2rem !important;
    }
}

@media (max-width: 480px) {
    #project-gridville .portfolio-icon {
        margin-bottom: -1.5rem !important;
    }
    
    #project-gridville p {
        margin-top: -1.5rem !important;
    }
}

.portfolio-item:hover .portfolio-icon {
    transform: scale(1.2);
}

/* Resume Details */
.resume-details {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
    list-style-type: none;
}

.resume-details li {
    position: relative;
    margin-bottom: 0.5rem;
    list-style-type: none;
}

.resume-details li:before {
    content: '';
    position: absolute;
    left: -20px;
    top: 0.5em;
    width: 10px;
    height: 2px;
    background-color: var(--accent);
    margin-top: 0;
}

/* Theme and Language Toggle Buttons */
.footer-toggles {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 20px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.toggle-btn:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-2px);
}

.toggle-btn i {
    font-size: 0.9rem;
}

/* Light theme variables */
body.light-theme {
    --bg-primary: #f5f5f5;
    --bg-secondary: #e5e5e5;
    --text-primary: #121212;
    --text-secondary: #555555;
    --border: #dddddd;
}

body.light-theme .accent, 
body.light-theme .resume-date, 
body.light-theme .contact-item i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Fix the white fade on background in light mode */
body.light-theme #hero {
    background: url('images/wallpaper.jpg');
    background-size: cover;
    background-position: center;
}

body.light-theme #hero:before {
    display: none; /* Remove the fade overlay */
}

/* Fix portfolio item hover animation in light mode */
body.light-theme .portfolio-item:before {
    content: '';
    position: absolute;
    top: -200%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(0, 0, 0, 0.05);
    transform: rotate(45deg);
    transition: all 0.4s ease;
}

body.light-theme .portfolio-item:hover:before {
    top: -100%;
}

/* Ensure arrows and hover effects are visible */
body.light-theme .portfolio-item {
    overflow: hidden;
    position: relative;
}

body.light-theme .portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

body.light-theme:before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(125deg, var(--bg-primary) 0%, var(--bg-primary) 40%, rgba(225, 225, 225, 0.8) 40.1%, var(--bg-primary) 70%, var(--bg-primary) 100%);
    opacity: 0.4;
    z-index: -1;
}

/* Enhanced contrast for light mode */
body.light-theme .portfolio-item {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

body.light-theme .resume-item p,
body.light-theme .about-text p {
    color: #444444;
}

body.light-theme .stat-label {
    color: #444444;
}

body.light-theme .nav-links a:hover,
body.light-theme .footer-links a:hover {
    color: var(--accent);
}

/* Improved header contrast in both themes */
body.light-theme header {
    background-color: var(--bg-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}