/* ===================================
   Mark Nader Kamel Portfolio
   Cybersecurity & Network Specialist
   Dark Modern Theme with Neon Accents
   =================================== */

/* === CSS Variables === */
:root {
    --color-bg: #0A0A0A;
    --color-bg-alt: #121212;
    --color-bg-card: #1A1A1A;
    --color-primary: #00FFFF;
    --color-secondary: #CCCCCC;
    --color-text: #FFFFFF;
    --color-text-muted: #999999;
    --color-accent: #00D4FF;
    --font-main: 'Poppins', sans-serif;
    --transition: all 0.3s ease;
    --glow-primary: 0 0 20px rgba(0, 255, 255, 0.5);
    --glow-strong: 0 0 30px rgba(0, 255, 255, 0.8);
}

/* === Global Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

section {
    padding: 100px 0;
    position: relative;
}

.section {
    min-height: auto;
}

/* === Animated Cyber Background === */
.cyber-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        linear-gradient(to bottom, rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.95)),
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 255, 255, 0.03) 2px, rgba(0, 255, 255, 0.03) 4px);
    animation: scanlines 8s linear infinite;
}

@keyframes scanlines {
    0% { background-position: 0 0; }
    100% { background-position: 0 100%; }
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

.navbar.scrolled {
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.1);
}

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

.nav-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: var(--glow-primary);
}

.brand-text {
    font-family: 'Courier New', monospace;
}

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

.nav-link {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    transition: var(--transition);
    box-shadow: var(--glow-primary);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-greeting {
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 10px;
    animation: fadeInDown 0.8s ease;
}

.hero-name {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title {
    font-size: 28px;
    color: var(--color-secondary);
    margin-bottom: 20px;
    min-height: 40px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

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

.hero-description {
    font-size: 18px;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.btn {
    padding: 15px 35px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

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

.btn-primary:hover {
    background: var(--color-accent);
    box-shadow: var(--glow-strong);
    transform: translateY(-3px);
}

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
    transform: translateY(-3px);
}

.hero-social {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 0.8s ease 1s both;
}

.social-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    color: var(--color-primary);
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
    transform: translateY(-5px) rotate(360deg);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-muted);
    animation: fadeIn 1s ease 1.2s both;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-primary);
    border-radius: 20px;
    margin: 0 auto 10px;
    position: relative;
}

.wheel {
    width: 6px;
    height: 10px;
    background: var(--color-primary);
    border-radius: 3px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 25px; }
}

/* === Section Titles === */
.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-primary);
    text-shadow: var(--glow-primary);
}

.section-divider {
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, transparent, var(--color-primary), transparent);
    margin: 0 auto 60px;
    box-shadow: var(--glow-primary);
}

/* === About Section === */
.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    border: 3px solid var(--color-primary);
    box-shadow: var(--glow-primary);
}

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    filter: grayscale(20%);
    transition: var(--transition);
}

.image-wrapper:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.image-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: var(--transition);
}

.image-wrapper:hover .image-glow {
    opacity: 1;
    animation: rotate 3s linear infinite;
}

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

.about-text h3 {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.about-text p {
    font-size: 16px;
    color: var(--color-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--color-bg-card);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-5px);
}

.stat-item h4 {
    font-size: 36px;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.stat-item p {
    color: var(--color-secondary);
    margin: 0;
}

/* === Skills Section === */
.skills {
    background: var(--color-bg-alt);
}

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

.skill-category {
    background: var(--color-bg-card);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.1);
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.category-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 24px;
    color: var(--color-primary);
    margin-bottom: 25px;
}

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

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    position: relative;
}

.skill-item[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--color-bg);
    color: var(--color-primary);
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 10;
    border: 1px solid var(--color-primary);
    box-shadow: var(--glow-primary);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.skill-name {
    color: var(--color-text);
    font-weight: 500;
}

.skill-percentage {
    color: var(--color-primary);
    font-weight: 600;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 10px;
    transition: width 1s ease;
    box-shadow: 0 0 10px var(--color-primary);
}

/* === Experience Section === */
.timeline {
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
}

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

.timeline-marker {
    position: absolute;
    left: -56px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 3px solid var(--color-bg);
    box-shadow: var(--glow-primary);
}

.timeline-content {
    background: var(--color-bg-card);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.timeline-date {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}

.timeline-content h3 {
    font-size: 24px;
    color: var(--color-text);
    margin: 10px 0;
}

.timeline-content h4 {
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 15px;
}

.timeline-list {
    list-style: none;
    margin: 20px 0;
}

.timeline-list li {
    color: var(--color-secondary);
    padding-left: 25px;
    position: relative;
    margin-bottom: 10px;
}

.timeline-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tag {
    padding: 5px 15px;
    background: rgba(0, 255, 255, 0.1);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 20px;
    font-size: 14px;
    transition: var(--transition);
}

.tag:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
}

/* === Education Section === */
.education {
    background: var(--color-bg-alt);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.education-card {
    background: var(--color-bg-card);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition);
    text-align: center;
}

.education-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-10px);
}

.card-icon {
    margin-bottom: 20px;
}

.card-icon svg {
    color: var(--color-primary);
    filter: drop-shadow(var(--glow-primary));
}

.education-card h3 {
    font-size: 22px;
    color: var(--color-text);
    margin-bottom: 10px;
}

.education-card h4 {
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 15px;
}

.education-date {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 15px;
}

.education-highlights {
    list-style: none;
    text-align: left;
    margin-top: 20px;
}

.education-highlights li {
    color: var(--color-secondary);
    padding-left: 25px;
    position: relative;
    margin-bottom: 8px;
}

.education-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* === Certifications Section === */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.cert-card {
    background: var(--color-bg-card);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-10px);
}

.cert-icon {
    margin-bottom: 20px;
}

.cert-icon svg {
    color: var(--color-primary);
    filter: drop-shadow(var(--glow-primary));
}

.cert-card h3 {
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 10px;
    min-height: 60px;
}

.cert-date {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.cert-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.cert-link:hover {
    color: var(--color-accent);
    gap: 12px;
}

/* === Portfolio Section === */
.portfolio {
    background: var(--color-bg-alt);
}

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

.filter-btn {
    padding: 10px 25px;
    background: transparent;
    color: var(--color-secondary);
    border: 2px solid rgba(0, 255, 255, 0.3);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

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

.portfolio-item {
    background: var(--color-bg-card);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition);
}

.portfolio-item.hide {
    display: none;
}

.portfolio-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-10px);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.btn-view {
    padding: 12px 30px;
    background: var(--color-bg);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.btn-view:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-strong);
}

.portfolio-info {
    padding: 25px;
}

.portfolio-info h3 {
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 10px;
}

.portfolio-category {
    color: var(--color-primary);
    font-size: 14px;
}

/* === Modal === */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    overflow-y: auto;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--color-bg-card);
    padding: 40px;
    border-radius: 10px;
    max-width: 800px;
    width: 90%;
    position: relative;
    border: 2px solid var(--color-primary);
    box-shadow: var(--glow-strong);
    animation: slideUp 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 32px;
    color: var(--color-primary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-accent);
    transform: rotate(90deg);
}

.project-detail h2 {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.project-detail p {
    color: var(--color-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.project-detail h4 {
    color: var(--color-primary);
    margin-top: 20px;
    margin-bottom: 10px;
}

.project-detail ul {
    list-style: none;
    margin-bottom: 20px;
}

.project-detail ul li {
    color: var(--color-secondary);
    padding-left: 25px;
    position: relative;
    margin-bottom: 8px;
}

.project-detail ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* === Contact Section === */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 28px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--color-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 5px;
}

.contact-item h4 {
    color: var(--color-text);
    margin-bottom: 5px;
}

.contact-item p,
.contact-item a {
    color: var(--color-secondary);
    text-decoration: none;
}

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

.contact-form-wrapper {
    background: var(--color-bg-card);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.2);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--color-bg);
    border: 2px solid rgba(0, 255, 255, 0.3);
    border-radius: 5px;
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.btn-submit {
    width: 100%;
    position: relative;
}

.btn-loader {
    display: inline-block;
}

.btn-loader svg {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.form-message {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    display: none;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    display: block;
    background: rgba(0, 255, 0, 0.1);
    color: #00FF00;
    border: 1px solid #00FF00;
}

.form-message.error {
    display: block;
    background: rgba(255, 0, 0, 0.1);
    color: #FF0000;
    border: 1px solid #FF0000;
}

/* === Footer === */
.footer {
    background: var(--color-bg-alt);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 255, 255, 0.2);
}

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

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    color: var(--color-primary);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: var(--glow-primary);
    transform: translateY(-5px);
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--glow-primary);
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    background: var(--color-accent);
    box-shadow: var(--glow-strong);
    transform: translateY(-5px);
}

/* === Animations === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Responsive Design === */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 30px 0;
        border-top: 1px solid rgba(0, 255, 255, 0.2);
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .hero-name {
        font-size: 40px;
    }

    .hero-title {
        font-size: 20px;
    }

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

    .btn {
        width: 100%;
        max-width: 250px;
    }

    .section-title {
        font-size: 36px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .timeline {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -38px;
    }

    .modal-content {
        padding: 30px 20px;
        width: 95%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 60px 0;
    }

    .hero-name {
        font-size: 32px;
    }

    .hero-description {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .contact-form-wrapper {
        padding: 25px 20px;
    }
}