/* Global Styles */
:root {
    --primary-color: #2AC0FB;
    --secondary-color: #FF6B6B;
    --accent-color: #4CAF50;
    --dark-bg: #121212;
    --dark-surface: #1E1E1E;
    --dark-card: #252525;
    --light-bg: #F5F5F5;
    --light-surface: #FFFFFF;
    --light-card: #EEEEEE;
    --dark-text: #212121;
    --light-text: #FFFFFF;
    --gray-text: #9E9E9E;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

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

body {
    background-color: var(--dark-bg);
    color: var(--light-text);
    transition: var(--transition);
    line-height: 1.6;
    overflow-x: hidden;
}

body.light-mode {
    background-color: var(--light-bg);
    color: var(--dark-text);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
}

.light-mode .navbar {
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    transition: var(--transition);
}

.logo-white {
    display: block;
}

.logo-black {
    display: none;
}

.light-mode .logo-white {
    display: none;
}

.light-mode .logo-black {
    display: block;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    transition: var(--transition);
}

.light-mode .nav-link {
    color: var(--dark-text);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--light-text);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.light-mode .theme-toggle {
    color: var(--dark-text);
}

.theme-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light-text);
}

.light-mode .mobile-menu {
    color: var(--dark-text);
}

/* Hero Section with Slider */
.hero {
    position: relative;
    height: 80vh;
    min-height: 600px;
    overflow: hidden;
    margin-top: 0;
}

.hero-slider {
    position: relative;
    height: 100%;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background-size: cover;
    background-position: center;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.8));
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--light-text);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

.slider-arrow:hover {
    background-color: var(--primary-color);
}

.slider-prev {
    left: 20px;
}

.slider-next {
    right: 20px;
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 5;
    width: 80%;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--light-text);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--light-text);
    opacity: 0.9;
}

.hero-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: var(--primary-color);
    color: var(--light-text);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-btn:hover {
    background-color: var(--light-text);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Projects Navigation */
.services-nav {
    position: sticky;
    top: 80px;
    background-color: var(--dark-surface);
    padding: 1rem 0;
    z-index: 100;
    transition: var(--transition);
}

.light-mode .services-nav {
    background-color: var(--light-surface);
    box-shadow: var(--shadow);
}

.services-nav-fixed {
    top: 0;
    padding: 0.75rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.services-nav-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.service-nav-item {
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    background-color: transparent;
    color: var(--gray-text);
    border: 1px solid var(--gray-text);
}

.light-mode .service-nav-item {
    color: var(--dark-text);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.service-nav-item.active,
.service-nav-item:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
    border-color: var(--primary-color);
}

/* Service/Project Section */
.service-section {
    padding: 5rem 0;
    display: none;
}

.service-section:target,
#software-projects {
    display: block;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
    max-width: 700px;
    margin: 0 auto;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card-wrapper {
    height: 350px;
    perspective: 1000px;
}

.project-card {
    height: 100%;
    background-size: cover;
    background-position: center;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.8s;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.4));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-overlay h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.project-overlay p {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.project-btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background-color: var(--primary-color);
    color: var(--light-text);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    align-self: flex-start;
}

.project-btn:hover {
    background-color: var(--light-text);
    color: var(--primary-color);
}

/* Filter Controls for All Projects */
.filter-controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    background-color: transparent;
    color: var(--gray-text);
    border: 1px solid var(--gray-text);
}

.light-mode .filter-btn {
    color: var(--dark-text);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.filter-btn.active,
.filter-btn:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
    border-color: var(--primary-color);
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background-color: var(--dark-surface);
    text-align: center;
}

.light-mode .cta-section {
    background-color: var(--light-surface);
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-btn.primary {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.cta-btn.primary:hover {
    background-color: var(--light-text);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.cta-btn.secondary {
    background-color: transparent;
    color: var(--light-text);
    border: 2px solid var(--light-text);
}

.light-mode .cta-btn.secondary {
    color: var(--dark-text);
    border: 2px solid var(--dark-text);
}

.cta-btn.secondary:hover {
    background-color: var(--light-text);
    color: var(--dark-text);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.light-mode .cta-btn.secondary:hover {
    background-color: var(--dark-text);
    color: var(--light-text);
}

/* Footer */
.footer {
    background-color: var(--dark-card);
    padding: 5rem 0 2rem;
}

.light-mode .footer {
    background-color: var(--light-card);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-logo h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo p {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--dark-surface);
    color: var(--primary-color);
    transition: var(--transition);
}

.light-mode .social-link {
    background-color: var(--light-surface);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
    transform: translateY(-3px);
}

.footer-links h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-color);
    opacity: 1;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

.light-mode .copyright {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 99;
}

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

.back-to-top:hover {
    background-color: var(--light-text);
    color: var(--primary-color);
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background-color: var(--primary-color);
    z-index: 1001;
    width: 0%;
    transition: width 0.1s;
}

/* Responsive Styles */
@media (max-width: 991px) {
    html {
        font-size: 15px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 767px) {
    .navbar {
        padding: 1rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .service-section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-nav-container {
        gap: 0.5rem;
    }
    
    .service-nav-item {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
    }
}

/* Animation for Project Cards */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-card-wrapper {
    animation: fadeIn 0.6s ease forwards;
}

/* Animation for Page Load */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Additional style for service section */
#software-projects, 
#mobile-projects, 
#web-projects, 
#cybersecurity-projects, 
#ui-ux-projects, 
#blender-projects, 
#all-projects {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#software-projects {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.service-section:target {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Navigation Menu */
.mobile-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--dark-surface);
    z-index: 1001;
    padding: 2rem;
    transition: left 0.3s ease;
    overflow-y: auto;
}

.light-mode .mobile-nav {
    background-color: var(--light-surface);
}

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

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 3rem;
}

.mobile-nav-link {
    color: var(--light-text);
    font-size: 1.2rem;
    font-weight: 500;
}

.light-mode .mobile-nav-link {
    color: var(--dark-text);
}

.close-menu {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: var(--light-text);
    cursor: pointer;
}

.light-mode .close-menu {
    color: var(--dark-text);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}