/* Base Styles */
:root {
    --primary-color: #00ff9d;
    --secondary-color: #0066ff;
    --dark-bg: #0a0a1a;
    --darker-bg: #050510;
    --light-text: #ffffff;
    --gray-text: #a0a0b0;
    --card-bg: #121225;
    --border-color: #2a2a4a;
    --transition: all 0.3s ease;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto 3rem;
    border-radius: 3px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    font-family: 'Orbitron', sans-serif;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.primary-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--darker-bg);
    box-shadow: 0 5px 15px rgba(0, 255, 157, 0.3);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 157, 0.5);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

.secondary-btn:hover {
    background: rgba(0, 255, 157, 0.1);
    transform: translateY(-3px);
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--darker-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loader-content {
    text-align: center;
}

.cyber-grid {
    width: 80px;
    height: 80px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
    animation: rotate 2s linear infinite;
    margin: 0 auto 20px;
}

.cyber-grid::before,
.cyber-grid::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.cyber-grid::after {
    transform: translateY(-50%) rotate(90deg);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(10px);
}

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

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--light-text);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--light-text);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 0 50px;
}

.cyber-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(rgba(10, 10, 26, 0.9), rgba(10, 10, 26, 0.9)),
        repeating-linear-gradient(0deg, transparent, transparent 1px, rgba(42, 42, 74, 0.3) 1px, rgba(42, 42, 74, 0.3) 2px),
        repeating-linear-gradient(90deg, transparent, transparent 1px, rgba(42, 42, 74, 0.3) 1px, rgba(42, 42, 74, 0.3) 2px);
    background-size: 100% 100%, 20px 20px, 20px 20px;
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

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

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.hero-cta {
    display: flex;
    gap: 15px;
}

.profile-container {
    position: relative;
    text-align: center;
}

.profile-border {
    width: 300px;
    height: 300px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    padding: 5px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 255, 157, 0.3);
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-item {
    position: absolute;
    font-size: 2rem;
    opacity: 0.7;
}

.floating-item:nth-child(1) {
    top: 20%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

.floating-item:nth-child(2) {
    top: 70%;
    right: 15%;
    animation: float 8s ease-in-out infinite 1s;
}

.floating-item:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation: float 7s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--gray-text);
}

.stats-container {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item p {
    color: var(--gray-text);
    font-size: 1rem;
}

.tech-stack {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
}

.tech-stack h3 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.tech-icons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: center;
}

.tech-icons i {
    font-size: 2.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.tech-icons i:hover {
    transform: scale(1.2);
    color: var(--secondary-color);
}

/* Skills Section */
.skills {
    padding: 100px 0;
}

.skills-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.skills-chart {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.skill-category {
    margin-bottom: 30px;
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.skill-item {
    margin-bottom: 20px;
}

.skill-item span {
    display: block;
    margin-bottom: 8px;
    color: var(--light-text);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--darker-bg);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    width: 0;
    transition: width 2s ease-in-out;
}

/* Experience Section */
.experience {
    padding: 100px 0;
    background: var(--darker-bg);
}

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

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
}

.timeline-marker {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--dark-bg);
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    box-shadow: 0 0 0 4px rgba(0, 255, 157, 0.3);
}

.timeline-content {
    width: 45%;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}

.timeline-item:nth-child(odd) .timeline-content {
    left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    left: 55%;
}

.timeline-title {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.timeline-company {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.timeline-date {
    color: var(--gray-text);
    font-style: italic;
    margin-bottom: 15px;
}

/* Projects Section */
.projects {
    padding: 100px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.project-image {
    height: 200px;
    overflow: hidden;
}

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

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

.project-content {
    padding: 25px;
}

.project-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.project-content p {
    color: var(--gray-text);
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: rgba(0, 255, 157, 0.1);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Certifications Section */
.certifications {
    padding: 100px 0;
    background: var(--darker-bg);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.certification-card {
    background: var(--card-bg);
    padding: 40px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.certification-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.certification-card h3 {
    color: var(--light-text);
}

/* Contact Section */
.contact {
    padding: 100px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info p {
    color: var(--gray-text);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.contact-details {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    color: var(--gray-text);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-right: 15px;
    width: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--primary-color);
    font-size: 1.3rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.contact-form {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--darker-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--light-text);
    font-family: 'Roboto', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 157, 0.1);
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 50px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-content p {
    color: var(--gray-text);
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--gray-text);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Floating Button */
.floating-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
}

.floating-btn .btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--primary-color);
    font-size: 1.2rem;
    box-shadow: var(--box-shadow);
}