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

:root {
    --primary-color: #00d4aa;
    --secondary-color: #1a1a1a;
    --accent-color: #ff6b35;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #2a2a2a;
    --border-color: #333333;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

body {

    /*font-family: 'Cairo', sans-serif;*/
    font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;

}

/*
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 70% 0%, rgba(94,234,212,.08), transparent 60%),
    radial-gradient(900px 500px at 10% 20%, rgba(251,113,133,.06), transparent 60%),
    var(--bg);
  color:var(--text);
}

*/

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

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

.navbar {
    padding: 1rem 0;
}

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

.nav-logo h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

.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(--gradient);
    transition: width 0.3s ease;
}

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

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

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

.language-toggle {
    margin-left: 1rem;
}

.lang-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* 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: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
}

.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: 1;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.hero-name {
    font-size: 4rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.skill-tag {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

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

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 170, 0.3);
}

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

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 1s ease-out;
}

.hero-placeholder {
    width: 300px;
    height: 300px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow);
}

.hero-placeholder i {
    font-size: 5rem;
    color: var(--primary-color);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-info {
    display: grid;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.info-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    min-width: 60px;
}

.info-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Projects Section */
.projects {
    padding: 6rem 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    border-color: var(--primary-color);
}

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

.project-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.project-placeholder i {
    font-size: 4rem;
    color: var(--primary-color);
}

.project-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;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

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

.tech-tag {
    background: var(--primary-color);
    color: var(--bg-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-content {
    padding: 2rem;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.project-features {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--primary-color);
    width: 20px;
}

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

.tool-tag {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 50px;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

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

.social-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.contact-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    pointer-events: none;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: -0.5rem;
    left: 0.5rem;
    font-size: 0.8rem;
    color: var(--primary-color);
    background: var(--bg-card);
    padding: 0 0.5rem;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* 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);
    }
}

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

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .hero-name {
        font-size: 3rem;
    }

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

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

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

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

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

    .hero-placeholder {
        width: 250px;
        height: 250px;
    }

    .hero-placeholder i {
        font-size: 4rem;
    }
}

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

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

    .hero-title {
        font-size: 1.8rem;
    }

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

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .hero-placeholder {
        width: 200px;
        height: 200px;
    }

    .hero-placeholder i {
        font-size: 3rem;
    }
}

/* RTL Support */
[dir="rtl"] .hero-container {
    direction: rtl;
}

[dir="rtl"] .nav-menu {
    direction: rtl;
}

[dir="rtl"] .hero-buttons {
    direction: rtl;
}

[dir="rtl"] .contact-content {
    direction: rtl;
}

[dir="rtl"] .footer-content {
    direction: rtl;
}

/* LTR Support */
[dir="ltr"] .hero-container {
    direction: ltr;
}

[dir="ltr"] .nav-menu {
    direction: ltr;
}

[dir="ltr"] .hero-buttons {
    direction: ltr;
}

[dir="ltr"] .contact-content {
    direction: ltr;
}

[dir="ltr"] .footer-content {
    direction: ltr;
}

/* Project Buttons */
.project-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-small {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-card);
    margin: 2% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 20px 20px 0 0;
}

.modal-header h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin: 0;
}

.close {
    color: var(--text-secondary);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-secondary);
}

.close:hover {
    color: var(--primary-color);
    background: var(--bg-card);
}

.modal-body {
    padding: 2rem;
}

/* Evolution Timeline */
.evolution-timeline {
    position: relative;
    padding-left: 2rem;
}

.evolution-timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    left: -1.5rem;
    top: 0;
    width: 3rem;
    height: 3rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
    box-shadow: 0 5px 15px rgba(0, 212, 170, 0.3);
}

.timeline-content {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.timeline-content h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.timeline-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.timeline-image {
    text-align: center;
    margin-top: 1rem;
}

.timeline-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.timeline-image img:hover {
    transform: scale(1.05);
}

.timeline-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.timeline-gallery img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.timeline-gallery img:hover {
    transform: scale(1.05);
}

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

.gallery-item {
    text-align: center;
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.gallery-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.gallery-item img:hover {
    transform: scale(1.05);
}

.gallery-caption {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Modal Animations */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .evolution-timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-item {
        padding-left: 1.5rem;
    }
    
    .timeline-marker {
        left: -1.25rem;
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .timeline-gallery {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Performance hints */
.hero, .project-card, .nav-menu {
    will-change: transform, opacity;
}

@media (max-width: 768px) {
    .header {
        backdrop-filter: blur(4px);
    }
    /* Disable heavy transforms on mobile for smoother scroll */
    .project-card:hover {
        transform: none;
        box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    }
}

/* Reduce grid background render cost on mobile */
@media (max-width: 768px) {
    .hero::before {
        opacity: 0.06;
    }
}