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

html {
    overflow-x: hidden;
}

:root {
    --primary-color: #00d4aa;
    --secondary-color: #1a1a1a;
    --accent-color: #ff6b35;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #1e1e1e;
    --border-color: #333333;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: var(--primary-color);
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-tertiary {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.btn-tertiary:hover {
    background: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Interactive Terminal */
.hero-visual {
    animation: slideInRight 1s ease-out;
}

/* Responsive Integrated Terminal */
.interactive-terminal {
        background: linear-gradient(145deg, #0d1117, #161b22);
        border-radius: 12px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
        overflow: hidden;
        border: 1px solid #30363d;
        font-family: 'SF Mono', 'Monaco', 'Menlo', 'Consolas', monospace;
        max-height: 400px;
        position: relative;
        width: 100%;
        min-width: 0;
}

@media (max-width: 900px) {
    .interactive-terminal {
        max-width: 100%;
        min-width: 0;
    }
}

@media (max-width: 768px) {
    .interactive-terminal {
        max-width: 100%;
        min-width: 0;
        font-size: 0.95rem;
    }
    .terminal-header {
        padding: 8px 10px;
        font-size: 0.95rem;
    }
    .terminal-body {
        padding: 12px;
        min-height: 180px;
        max-height: 220px;
    }
}

@media (max-width: 480px) {
    .interactive-terminal {
        font-size: 0.85rem;
        border-radius: 8px;
    }
    .terminal-header {
        padding: 6px 6px;
        font-size: 0.85rem;
    }
    .terminal-body {
        padding: 8px;
        min-height: 120px;
        max-height: 160px;
    }
}


.interactive-terminal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 170, 0.5), transparent);
}

.terminal-header {
    background: linear-gradient(135deg, #21262d, #30363d);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid #30363d;
    position: relative;
}

.terminal-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.control:hover {
    opacity: 0.7;
}

.close { 
    background: linear-gradient(135deg, #ff5f57, #ff6b6b);
    box-shadow: 0 2px 4px rgba(255, 95, 87, 0.3);
}
.minimize { 
    background: linear-gradient(135deg, #ffbd2e, #ffcc02);
    box-shadow: 0 2px 4px rgba(255, 189, 46, 0.3);
}
.maximize { 
    background: linear-gradient(135deg, #28ca42, #51cf66);
    box-shadow: 0 2px 4px rgba(40, 202, 66, 0.3);
}

.terminal-title {
    color: #58a6ff;
    font-size: 0.9rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(88, 166, 255, 0.3);
}

/* Profile Photo Section */
.profile-section {
    margin-bottom: 2rem;
}

.profile-photo {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    position: relative;
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.photo-placeholder:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.3);
}

.photo-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.photo-placeholder p {
    font-size: 0.9rem;
    text-align: center;
    color: var(--text-secondary);
    margin: 0;
}

.terminal-body {
    padding: 20px;
    background: linear-gradient(145deg, #0d1117, #0a0d14);
    min-height: 300px;
    max-height: 350px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    position: relative;
}

.terminal-output {
    font-size: 0.85rem;
    line-height: 1.4;
}

.terminal-line {
    margin-bottom: 4px;
    color: #ffffff;
}

.prompt {
    color: #7c3aed;
    font-weight: 600;
    text-shadow: 0 0 8px rgba(124, 58, 237, 0.5);
}

.command {
    color: #f1f5f9;
    font-weight: 500;
}

.typing {
    color: #f1f5f9;
}

.cursor {
    color: #7c3aed;
    animation: blink 1s infinite;
    text-shadow: 0 0 8px rgba(124, 58, 237, 0.5);
}

.terminal-input-line {
    display: flex;
    align-items: center;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid #333;
}

.terminal-input {
    background: transparent;
    border: none;
    color: #f1f5f9;
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    outline: none;
    flex: 1;
    margin-left: 10px;
    caret-color: #7c3aed;
}

.terminal-input:focus {
    outline: none;
}

.welcome {
    margin-bottom: 8px;
}

.welcome-text {
    color: #10b981;
    font-weight: 600;
    text-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

.command-output {
    color: #e2e8f0;
    margin-left: 0;
    font-weight: 500;
}

.error-output {
    color: #ef4444;
    font-weight: 600;
    text-shadow: 0 0 8px rgba(239, 68, 68, 0.3);
}

.success-output {
    color: #10b981;
    font-weight: 500;
    text-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Terminal Scrollbar */
.terminal-body::-webkit-scrollbar {
    width: 8px;
}

.terminal-body::-webkit-scrollbar-track {
    background: #1a1a1a;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

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

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.highlight-item h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.highlight-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat h3 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

/* Projects Section */
.projects {
    background: var(--bg-secondary);
}

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

.project-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-header h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
}

.project-links {
    display: flex;
    gap: 0.5rem;
}

.project-link {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--primary-color);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--primary-color);
    color: var(--bg-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Section */
/* Responsive Contact Section */
.contact-content {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 4rem;
        align-items: center;
}

@media (max-width: 900px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 8px;
    }
    .contact-methods {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .contact-content {
        padding: 0 4px;
        gap: 1rem;
    }
    .contact-method {
        padding: 0.7rem 1rem;
        font-size: 0.95rem;
    }
}


.contact-info h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.contact-method:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

.contact-method i {
    font-size: 1.2rem;
}

.quote-section {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.quote-section blockquote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.quote-section cite {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

/* Responsive Footer Section */
.footer-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 1rem;
}

@media (max-width: 900px) {
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    .footer-links {
        justify-content: center;
        gap: 1.5rem;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .footer-content {
        gap: 0.5rem;
        font-size: 0.9rem;
    }
    .footer-links {
        gap: 1rem;
        font-size: 0.9rem;
    }
}


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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .skill-category,
    .project-card {
        padding: 1.5rem;
    }
}

/* Experience Section */
.experience {
    background: var(--bg-primary);
}

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

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.timeline-marker {
    position: absolute;
    left: 21px;
    top: 10px;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    z-index: 2;
}

.timeline-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: center;
}

.timeline-header h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin: 0;
}

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

.duration {
    background: var(--primary-color);
    color: var(--bg-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 500;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.8;
}

.timeline-description li {
    margin-bottom: 0.5rem;
}

/* Certifications Section */
.certifications {
    background: var(--bg-secondary);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.cert-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.cert-category:hover {
    transform: translateY(-5px);
}

.cert-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cert-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cert-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.cert-item:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
}

.cert-name {
    font-weight: 500;
    flex: 1;
}

.cert-date {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.cert-item:hover .cert-date {
    color: var(--bg-primary);
}

.education-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.education-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.degree {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.duration, .gpa {
    color: black;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.coursework {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.publication-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.publication-item:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.publication-item:hover .journal,
.publication-item:hover .doi,
.publication-item:hover .date {
    color: var(--bg-primary);
}

.publication-item:hover h4 {
    color: #000;
}

.publication-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.journal {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.doi {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

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

/* Competitions Section */
.competitions-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.competition-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.competition-item:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.competition-name {
    font-weight: 500;
    flex: 1;
}

.achievement {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.competition-item:hover .achievement {
    color: var(--bg-primary);
}

/* Responsive Design for New Sections */
@media (max-width: 768px) {
    .experience-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-marker {
        left: 11px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .competition-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Floating Action Button */
.fab-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.fab-main {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
    transition: all 0.3s ease;
}

.fab-main:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 212, 170, 0.5);
}

.fab-main i {
    color: var(--bg-primary);
    font-size: 1.2rem;
}

/* Particle Background */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* Loading Animation */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

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

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

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