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

:root {
    /* Ubuntu/Linux Color Palette */
    --primary-black: #0E1117;
    --secondary-black: #1A1D23;
    --ubuntu-orange: #22A7F0;
    --ros-blue: #22A7F0;
    --matrix-green: #00FF41;
    --terminal-green: #00FF00;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --text-muted: #808080;
    --border-color: #333333;
    --card-bg: #1A1D23;
    --hover-bg: #2A2D33;
    
    /* Typography */
    --font-mono: 'Ubuntu Mono', 'Fira Code', monospace;
    --font-sans: 'Space Grotesk', 'Inter', sans-serif;
    
    /* Spacing */
    --container-padding: 2rem;
    --section-padding: 5rem 0;
    --border-radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-sans);
    background-color: var(--primary-black);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 15, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--container-padding);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
}

.terminal-prompt {
    color: var(--ubuntu-orange);
}

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

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

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

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

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

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

.nav-social {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 2rem;
}

.nav-social-link {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
}

.nav-social-link:hover {
    color: var(--ubuntu-orange);
    background: rgba(34, 167, 240, 0.1);
    transform: translateY(-2px);
}

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

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

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--primary-black);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.2) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-move 15s linear infinite;
    opacity: 0.8;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}



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

.terminal-window {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.terminal-header {
    background: var(--secondary-black);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.terminal-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.btn-close { background: #ff5f56; }
.btn-minimize { background: #ffbd2e; }
.btn-maximize { background: #27ca3f; }

.terminal-title {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.terminal-body {
    padding: 2rem;
    font-family: var(--font-mono);
}

.terminal-line {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.prompt {
    color: var(--ubuntu-orange);
    margin-right: 0.5rem;
}

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

.cursor {
    color: var(--terminal-green);
    animation: blink 1s infinite;
}

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

.terminal-output {
    margin-top: 1rem;
}

.output-line {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fade-in 0.5s ease-in-out forwards;
}

.output-line:nth-child(1) { animation-delay: 2s; }
.output-line:nth-child(2) { animation-delay: 2.5s; }
.output-line:nth-child(3) { animation-delay: 3s; }

@keyframes fade-in {
    to { opacity: 1; }
}

.hero-info {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--ubuntu-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 300;
}

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

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--ubuntu-orange);
    color: var(--text-primary);
}

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

.scroll-to-projects {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-to-projects:active {
    transform: scale(0.95) translateY(-2px);
}

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

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

/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

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

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    z-index: 0;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 10;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    z-index: 10;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
    align-items: stretch;
}

.project-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    opacity: 1;
    transform: translateY(0);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--ubuntu-orange);
}

.project-header {
    background: var(--secondary-black);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

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

.project-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.project-title {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.project-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-image {
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.placeholder-image {
    height: 200px;
    background: linear-gradient(135deg, var(--secondary-black) 0%, var(--border-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--ubuntu-orange);
}

.project-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-title {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    min-height: 120px;
    max-height: 120px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    line-clamp: 5;
    -webkit-box-orient: vertical;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    margin-top: auto;
}

.tech-badge {
    background: var(--ubuntu-orange);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--ros-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.view-details-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--ubuntu-orange) 0%, #1890d0 100%);
    color: var(--text-primary);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(34, 167, 240, 0.3);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.view-details-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.view-details-btn:hover::before {
    left: 100%;
}

.view-details-btn:hover {
    background: linear-gradient(135deg, #1890d0 0%, #1475b0 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 167, 240, 0.4);
}

.view-details-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(34, 167, 240, 0.3);
}

.project-card {
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(34, 167, 240, 0.2);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideDown 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    background: var(--secondary-black);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.modal-buttons {
    display: flex;
    gap: 8px;
}

.modal-buttons .btn-close,
.modal-buttons .btn-minimize,
.modal-buttons .btn-maximize {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.modal-title {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-family: var(--font-mono);
    margin: 0;
    flex: 1;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close-btn:hover {
    background: var(--ubuntu-orange);
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(90vh - 80px);
}

.modal-body::-webkit-scrollbar {
    width: 10px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--secondary-black);
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--ubuntu-orange);
    border-radius: 5px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: #1890d0;
}

.demo-section,
.gallery-section,
.detailed-description {
    margin-bottom: 2rem;
}

.demo-section h4,
.gallery-section h4,
.detailed-description h4 {
    color: var(--ubuntu-orange);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.detailed-description h5 {
    color: var(--text-primary);
    font-size: 1rem;
    margin: 1.5rem 0 0.75rem 0;
}

.video-container {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--secondary-black);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.video-container iframe {
    width: 100%;
    height: 100%;
}

.video-placeholder,
.gallery-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-secondary);
    gap: 1rem;
}

.video-placeholder i,
.gallery-placeholder i {
    font-size: 3rem;
    color: var(--ubuntu-orange);
}

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

.project-gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.project-gallery img:hover {
    transform: scale(1.05);
    border-color: var(--ubuntu-orange);
}

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

.detailed-description p {
    margin-bottom: 1rem;
}

.detailed-description ul {
    list-style: none;
    padding: 0;
}

.detailed-description li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.detailed-description li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--ubuntu-orange);
    font-size: 0.8rem;
}

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

/* Skills Section */
.skills {
    position: relative;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.5;
    z-index: 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.category-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.skill-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ubuntu-orange);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.skill-info {
    flex: 1;
}

.skill-name {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--ubuntu-orange) 0%, var(--ros-blue) 100%);
    border-radius: 4px;
    transition: width 1s ease-in-out;
    width: 0;
}

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

.terminal-bio {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 2rem;
    margin-bottom: 2rem;
}

.terminal-line {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.bio-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--ubuntu-orange);
    margin-bottom: 0.5rem;
}

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

.about-image {
    display: flex;
    justify-content: center;
}

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.placeholder-avatar {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-black) 0%, var(--border-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--ubuntu-orange);
    border: 3px solid var(--ubuntu-orange);
}

.image-overlay {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--card-bg);
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.code-snippet {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.code-line {
    color: var(--matrix-green);
    margin-bottom: 0.25rem;
}

/* Experience Section */
.experience {
    background: var(--secondary-black);
}

.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(--ubuntu-orange);
}

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

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

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

.timeline-content:hover {
    border-color: var(--ubuntu-orange);
    transform: translateX(10px);
}

.experience-header {
    margin-bottom: 1.5rem;
}

.company-logo-section {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.company-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    border: none;
    background: transparent;
    transition: var(--transition);
}

.company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

.job-info {
    flex: 1;
}

.job-title {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.company-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.company-name {
    color: var(--ubuntu-orange);
    font-weight: 600;
}

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

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

.experience-details li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.experience-details li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--ubuntu-orange);
    font-size: 0.8rem;
}

/* Education Section */
.education {
    background: var(--primary-black);
}

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

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

.education-header {
    margin-bottom: 1rem;
}

.degree {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.institution-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.institution-name {
    color: var(--ros-blue);
    font-weight: 600;
}

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

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.cert-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

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

.cert-item, .achievement-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--secondary-black);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.cert-item:hover, .achievement-item:hover {
    border-color: var(--ubuntu-orange);
    transform: translateX(5px);
}

.cert-item i {
    color: var(--ubuntu-orange);
    font-size: 1.2rem;
}

.achievement-item i {
    color: #FFD700;
    font-size: 1.2rem;
}

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

/* Contact Section */
.contact {
    background: var(--secondary-black);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 70px 70px;
    opacity: 0.4;
    z-index: 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--ubuntu-orange);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ubuntu-orange);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.contact-details h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

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

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.contact-link:hover {
    color: var(--ubuntu-orange);
    text-decoration: underline;
}

.contact-form {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.form-header {
    background: var(--secondary-black);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.form-buttons {
    display: flex;
    gap: 0.5rem;
}

.form-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.form-title {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.terminal-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.terminal-input,
.terminal-textarea {
    width: 100%;
    padding: 1rem;
    background: var(--secondary-black);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-mono);
    transition: var(--transition);
}

.terminal-input:focus,
.terminal-textarea:focus {
    outline: none;
    border-color: var(--ubuntu-orange);
    box-shadow: 0 0 0 2px rgba(34, 167, 240, 0.2);
}

.terminal-textarea {
    height: 120px;
    resize: vertical;
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--ubuntu-orange);
    color: var(--text-primary);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}

.btn-submit:hover {
    background: #d04a1a;
    transform: translateY(-2px);
}

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

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

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

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

.footer-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    background: var(--ubuntu-orange);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-social {
        margin-left: 1rem;
    }
    
    .nav-social-link {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--secondary-black);
        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-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .company-info, .institution-info {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .company-logo-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .job-info {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .filter-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 200px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }