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

:root {
    /* Color Palette */
    --primary-bg: #0a0a0a;
    --secondary-bg: #111111;
    --tertiary-bg: #1a1a1a;
    --accent-color: #00ff88;
    --accent-secondary: #ff6b6b;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --border-color: #333333;
    --gradient-primary: linear-gradient(135deg, #00ff88, #00cc6a);
    --gradient-secondary: linear-gradient(135deg, #ff6b6b, #ee5a52);
    
    /* Typography */
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

html {
    scroll-behavior: smooth;
}

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

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

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
}

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

.logo-text {
    color: var(--text-primary);
    margin: 0 5px;
}

.nav-menu {
    display: flex;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding: 8px 12px;
    border-radius: 6px;
}

.nav-link:hover {
    color: var(--accent-color);
    background: rgba(0, 255, 136, 0.05);
}

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

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

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--section-padding);
    background: var(--primary-bg);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.terminal-window {
    background: var(--secondary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.terminal-window:hover {
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(0, 255, 136, 0.1);
}

.terminal-header {
    background: var(--tertiary-bg);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

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

.btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.btn.close {
    background: #ff5f57;
}

.btn.minimize {
    background: #ffbd2e;
}

.btn.maximize {
    background: #28ca42;
}

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

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
}

.terminal-line {
    margin-bottom: 10px;
}

.prompt {
    color: var(--accent-color);
    margin-right: 10px;
}

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

.terminal-output h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.terminal-output p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.philosophy-quote {
    font-style: italic;
    color: var(--accent-secondary) !important;
    margin-top: 20px !important;
}


.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.matrix-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 24%, rgba(0, 255, 136, 0.03) 25%, rgba(0, 255, 136, 0.03) 26%, transparent 27%, transparent 74%, rgba(0, 255, 136, 0.03) 75%, rgba(0, 255, 136, 0.03) 76%, transparent 77%, transparent),
        linear-gradient(transparent 24%, rgba(0, 255, 136, 0.03) 25%, rgba(0, 255, 136, 0.03) 26%, transparent 27%, transparent 74%, rgba(0, 255, 136, 0.03) 75%, rgba(0, 255, 136, 0.03) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
}


.floating-icons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    z-index: 2;
}

.floating-icons i {
    font-size: 3rem;
    color: var(--accent-color);
    opacity: 0.7;
    cursor: pointer;
    position: relative;
    border-radius: 10px;
}

.floating-icons i::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 10px;
    opacity: 0;
}


.floating-icons i:hover::before {
    opacity: 1;
}

.floating-icons i:hover {
    opacity: 1;
    color: var(--text-primary);
}


/* Section Titles */
.section-title {
    font-family: var(--font-mono);
    font-size: 2rem;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.title-number {
    color: var(--accent-color);
    font-size: 1.2rem;
}

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

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
    margin-left: 20px;
}

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.code-block {
    background: var(--primary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
    overflow: hidden;
}

.code-header {
    background: var(--tertiary-bg);
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-color);
}

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

.code-content {
    padding: 20px;
}

.code-content pre {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
    overflow-x: auto;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--primary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    position: relative;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), transparent);
    opacity: 0;
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-item:hover {
    border-color: var(--accent-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 10px;
}

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

/* Skills Section */
.skills {
    padding: var(--section-padding);
    background: var(--primary-bg);
    /* perspective: 1200px; - Removed for simpler animations */
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.skill-category {
    background: var(--primary-bg);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    position: relative;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.03), rgba(255, 107, 107, 0.03));
    opacity: 0;
    pointer-events: none;
}

.skill-category:hover::before {
    opacity: 1;
}

/* .skill-category:hover - Removed animation for simpler experience */
.skill-category:hover {
    border-color: var(--accent-color);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category h3 i {
    color: var(--accent-color);
}

.skill-item {
    margin-bottom: 25px;
}

.skill-name {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
}

/* Tool Categories Filter */
.tool-categories {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.tool-filter {
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
}

.tool-filter:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.tool-filter.active {
    background: var(--accent-color);
    color: var(--primary-bg);
    border-color: var(--accent-color);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

.tools-grid::-webkit-scrollbar {
    width: 6px;
}

.tools-grid::-webkit-scrollbar-track {
    background: var(--tertiary-bg);
    border-radius: 3px;
}

.tools-grid::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 3px;
}

.tools-grid::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: var(--tertiary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
}


/* .tool-item:hover - Removed animation for simpler experience */
.tool-item:hover {
    border-color: var(--accent-color);
}

.tool-item i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

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

/* Projects Section */
.projects {
    padding: var(--section-padding);
    background: var(--secondary-bg);
    /* perspective: 1000px; - Removed for simpler animations */
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card {
    background: var(--primary-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    /* transition: all 0.4s ease; - Removed for simpler animations */
    position: relative;
    overflow: hidden;
}

/* .project-card:hover - Removed animation for simpler experience */
.project-card:hover {
    border-color: var(--accent-color);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

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

.project-buttons {
    display: flex;
    gap: 15px;
    margin: 20px 0;
    flex-wrap: wrap;
    position: relative;
    z-index: 100;
}

.project-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none !important;
    border: none;
    cursor: pointer !important;
    position: relative !important;
    z-index: 1000 !important;
    pointer-events: auto !important;
}

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


.github-btn {
    background: #333;
    color: white;
    border: 1px solid #555;
}


.demo-btn {
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}


.project-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.tech-tag {
    background: var(--tertiary-bg);
    color: var(--accent-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    border: 1px solid var(--border-color);
}

.tech-tag:hover {
    /* Removed animation for simpler experience */
    background: var(--accent-color);
    color: var(--primary-bg);
}

/* Featured Project Styles */
.featured-project {
    position: relative;
    background: linear-gradient(135deg, var(--tertiary-bg), var(--secondary-bg));
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.2);
}

.featured-project::before {
    background: var(--gradient-primary);
}

.featured-project .project-header h3 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.4rem;
    font-weight: 600;
}

.project-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}
.feature-highlight {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.feature-highlight:hover {
    /* Removed animation for simpler experience */
    background: rgba(0, 255, 136, 0.2);
}

.certificates-intro p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.cert-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.cert-filter {
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 25px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    /* transform-style: preserve-3d; - Removed for simpler animations */
}

/* .cert-filter:hover - Removed animation for simpler experience */
.cert-filter:hover {
    border-color: var(--accent-color);
}

.cert-filter.active {
    background: var(--gradient-primary);
    color: var(--primary-bg);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.form-instructions {
    margin-top: 30px;
    padding: 20px;
    background: var(--tertiary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.form-instructions p {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-instructions ol {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
    padding-left: 20px;
}

.form-instructions ol li {
    margin-bottom: 8px;
}

.form-instructions a {
    color: var(--accent-color);
    text-decoration: none;
}

.form-instructions a:hover {
    text-decoration: underline;
}

.form-instructions strong {
    color: var(--accent-color);
}

/* Pagination Styles */
.cert-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.pagination-btn {
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--accent-color);
    color: var(--primary-bg);
    border-color: var(--accent-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.pagination-info span {
    color: var(--accent-color);
    font-weight: 600;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.certificate-card {
    background: var(--primary-bg);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    /* transition: all 0.3s ease; - Removed for simpler animations */
    position: relative;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.03), rgba(255, 107, 107, 0.03));
    opacity: 0;
    pointer-events: none;
}

.certificate-card:hover::before {
    opacity: 1;
}

/* .certificate-card:hover - Removed animation for simpler experience */
.certificate-card:hover {
    border-color: var(--accent-color);
}

.cert-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cert-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    cursor: pointer;
}

.cert-overlay i {
    font-size: 2rem;
    color: var(--accent-color);
}

.certificate-card:hover .cert-overlay {
    opacity: 1;
}

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

.cert-info {
    padding: 25px;
}

.cert-info h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.cert-provider {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.cert-date {
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cert-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

/* Certificate Modal */
.cert-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.cert-modal.active {
    display: flex;
}

.cert-modal-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.cert-modal img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.cert-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
}

.cert-modal-close:hover {
    color: var(--accent-color);
}

/* Philosophy Section */
.philosophy {
    padding: var(--section-padding);
    background: var(--secondary-bg);
}

.philosophy-intro {
    text-align: center;
    margin-bottom: 60px;
}

.philosophy-intro p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Historical Figures Sections */
.figures-section {
    margin-bottom: 80px;
}

.figures-section h3 {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 40px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.figures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.figure-card {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 25px;
    position: relative;
    overflow: hidden;
}

.figure-card:hover {
    border-color: var(--accent-color);
}

.figure-info h4 {
    color: var(--accent-color);
    font-family: var(--font-mono);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.figure-dates {
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 15px;
    font-style: italic;
}

.figure-quote {
    color: var(--text-primary);
    font-style: italic;
    font-size: 1rem;
    margin-bottom: 15px;
    padding: 15px;
    background: var(--tertiary-bg);
    border-left: 3px solid var(--accent-color);
    border-radius: 5px;
    position: relative;
}

.figure-quote::before {
    content: '"';
    font-size: 2rem;
    color: var(--accent-color);
    position: absolute;
    top: -5px;
    left: 10px;
}

.figure-quote::after {
    content: '"';
    font-size: 2rem;
    color: var(--accent-color);
    position: absolute;
    bottom: -15px;
    right: 10px;
}

.figure-famous {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.figure-famous::before {
    content: '🏛️ ';
    margin-right: 8px;
}

.quote-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: 
        0 10px 20px rgba(0, 0, 0, 0.15),
        0 0 15px rgba(0, 255, 136, 0.1);
}

.quote-text {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-style: italic;
    line-height: 1.6;
}


.quote-relevance {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.historical-timeline h3 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.8rem;
    color: var(--text-primary);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 0 0 100px;
    text-align: center;
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.timeline-date::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--accent-color);
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-content {
    flex: 1;
    background: var(--secondary-bg);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    margin: 0 30px;
}

.timeline-content:hover {
    border-color: var(--accent-color);
}

.timeline-content h4 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--secondary-bg);
    perspective: 1000px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.terminal-contact {
    background: var(--primary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.contact-output {
    padding: 20px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.contact-item:hover {
    color: var(--accent-color);
}

.contact-item i {
    color: var(--accent-color);
    width: 20px;
}

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.submit-btn {
    background: var(--gradient-primary);
    color: var(--primary-bg);
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

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

.submit-btn:hover {
    box-shadow: 
        0 8px 16px rgba(0, 255, 136, 0.3),
        0 0 15px rgba(0, 255, 136, 0.2);
}

/* Footer */
.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-info {
    flex: 1;
    min-width: 250px;
}

.footer-info p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.footer-tagline {
    color: var(--accent-color) !important;
    font-style: italic;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.footer-link:hover {
    color: var(--accent-color);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

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

.footer-divider {
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-credit {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.footer-stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-stats .stat-item {
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-stats .stat-item i {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-stats {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .terminal-output h1 {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .quotes-grid {
        grid-template-columns: 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .cert-stats {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .cert-stats {
        grid-template-columns: 1fr;
    }
    
    .cert-filter {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 1;
}

.fade-in.visible {
    opacity: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Interactive Terminal Styles */
.interactive-terminal {
    margin-top: 30px;
}

.interactive-terminal .terminal-window {
    background: var(--secondary-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.interactive-terminal .terminal-body {
    max-height: 400px;
    overflow-y: auto;
    padding: 20px;
    font-family: var(--font-mono);
}

.interactive-terminal .terminal-input-line {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

.interactive-terminal .terminal-input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
    width: 100%;
    outline: none;
    caret-color: var(--accent-color);
}

.interactive-terminal .terminal-response {
    color: var(--text-secondary);
    margin: 10px 0;
    line-height: 1.5;
    white-space: pre-wrap;
}

.interactive-terminal .terminal-response p {
    margin: 5px 0;
}

.interactive-terminal .terminal-response .project-item {
    margin: 15px 0;
    padding-left: 20px;
    border-left: 2px solid var(--accent-color);
}

.interactive-terminal .terminal-response .project-title {
    color: var(--accent-color);
    font-weight: bold;
}

.interactive-terminal .terminal-response .skill-category {
    margin: 15px 0;
}

.interactive-terminal .terminal-response .skill-item {
    margin: 5px 0;
    padding-left: 15px;
}

.interactive-terminal .terminal-response .contact-item {
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

#launchTerminalBtn {
    background: var(--gradient-primary);
    color: var(--primary-bg);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

#launchTerminalBtn:hover {
    box-shadow: 0 8px 16px rgba(0, 255, 136, 0.3),
                0 0 15px rgba(0, 255, 136, 0.2);
}

/* Fix for HTML entities display */
.terminal-response p, .terminal-response div {
    white-space: pre-wrap;
}