/* ==========================================================================
   Premium Design System & Global Variables
   ========================================================================== */
:root {
    --bg-primary: #070b19;
    --bg-secondary: rgba(16, 22, 45, 0.6);
    --bg-card: rgba(22, 30, 62, 0.4);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --color-primary: #6366f1; /* Indigo */
    --color-secondary: #a855f7; /* Purple */
    --color-accent: #06b6d4; /* Cyan */
    
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-accent: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    --gradient-glow: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    
    --font-en: 'Outfit', sans-serif;
    --font-ar: 'Cairo', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.3);
    --shadow-glow-cyan: 0 0 25px rgba(6, 118, 212, 0.3);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-en);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Apply Cairo font and handle default direction when RTL */
html[dir="rtl"] body {
    font-family: var(--font-ar);
    text-align: right;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

input, textarea, button {
    font-family: inherit;
    background: none;
    border: none;
    outline: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
    transition: var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.6);
}

/* ==========================================================================
   Background Animated Blobs
   ========================================================================== */
.blob {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.35;
    pointer-events: none;
    animation: blob-float 15s infinite alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    background: rgba(99, 102, 241, 0.25);
    animation-delay: 0s;
}

.blob-2 {
    top: 40%;
    right: -10%;
    background: rgba(168, 85, 247, 0.2);
    animation-delay: 4s;
}

.blob-3 {
    bottom: -5%;
    left: 20%;
    background: rgba(6, 182, 212, 0.2);
    animation-delay: 8s;
}

@keyframes blob-float {
    0% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(50px, -30px) scale(1.1);
    }
    100% {
        transform: translate(-30px, 50px) scale(0.95);
    }
}

/* ==========================================================================
   Reusable UI Layouts
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0 4rem 0;
    position: relative;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

html[dir="rtl"] .section-title::after {
    left: 50%;
    transform: translateX(50%);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Buttons & Links
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 35px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 50px;
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.05);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 11, 25, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

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

html[dir="rtl"] .nav-link::after {
    left: auto;
    right: 0;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.btn-lang {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-normal);
}

.btn-lang:hover {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.hamburger .bar {
    width: 100%;
    height: 2.5px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

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

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

html[dir="rtl"] .hero-content {
    align-items: flex-start;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1rem;
}

.highlight-name {
    display: block;
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    min-height: 3.2rem;
}

.typing-text {
    color: var(--color-primary);
    border-right: 3px solid var(--color-primary);
    padding-right: 5px;
    animation: blink 0.75s step-end infinite;
    display: inline-block;
}

html[dir="rtl"] .typing-text {
    border-right: none;
    border-left: 3px solid var(--color-primary);
    padding-right: 0;
    padding-left: 5px;
}

@keyframes blink {
    from, to { border-color: transparent }
    50% { border-color: var(--color-primary); }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 550px;
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
}

/* Code Window Box Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.profile-card-wrapper {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.profile-card-wrapper::after {
    content: '';
    position: absolute;
    top: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    z-index: -1;
    opacity: 0.15;
    filter: blur(15px);
}

.profile-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.profile-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.profile-dots {
    display: flex;
    gap: 6px;
    margin-right: 1.5rem;
}

html[dir="rtl"] .profile-dots {
    margin-right: 0;
    margin-left: 1.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #22c55e; }

.profile-title {
    color: var(--text-muted);
    font-family: monospace;
    font-size: 0.85rem;
}

.profile-body {
    padding: 1.5rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    overflow-x: auto;
}

.profile-body pre {
    color: #e2e8f0;
}

.keyword { color: #f43f5e; }
.class-name { color: #06b6d4; }
.type { color: #3b82f6; }
.string { color: #10b981; }
.number { color: #f59e0b; }

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

.about-info {
    display: flex;
    flex-direction: column;
}

.about-heading {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

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

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: var(--shadow-sm);
}

.stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

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

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

.skills-category-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.skills-category-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-3px);
}

.skills-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.skills-category-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
}

.icon-accent {
    font-size: 1.5rem;
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-sm);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skill-level {
    font-size: 0.85rem;
    color: var(--text-muted);
    align-self: flex-end;
}

html[dir="rtl"] .skill-level {
    align-self: flex-start;
}

.skill-bar-bg {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
    margin-top: -15px; /* offset alignment with absolute flex children positioning */
}

.skill-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1.5s ease-in-out;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: var(--shadow-md);
}

.project-img-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
    background: #0f162d;
}

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

.project-card:hover .project-img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 11, 25, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.project-overlay-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.project-overlay-link:hover {
    background: var(--color-secondary);
    transform: scale(1.1);
}

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

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(6, 182, 212, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.project-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
}

.contact-heading {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.contact-desc-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.detail-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-sm);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.detail-content {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.detail-value {
    font-size: 1.05rem;
    font-weight: 600;
}

.detail-value:hover {
    color: var(--color-primary);
}

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

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.social-icon:hover {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-3px);
}

/* Contact Form styling */
.contact-form-wrapper {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
}

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

.form-group {
    position: relative;
    width: 100%;
}

.form-control {
    width: 100%;
    padding: 0.8rem 0;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-normal);
}

textarea.form-control {
    resize: none;
}

.form-group label {
    position: absolute;
    top: 0.8rem;
    left: 0;
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-normal);
}

html[dir="rtl"] .form-group label {
    left: auto;
    right: 0;
}

/* Floating Label Effects */
.form-control:focus, .form-control:not(:placeholder-shown) {
    border-bottom-color: var(--color-primary);
}

.form-control:focus ~ label, 
.form-control:not(:placeholder-shown) ~ label {
    top: -1.2rem;
    font-size: 0.85rem;
    color: var(--color-primary);
}

.btn-submit {
    align-self: flex-start;
}

html[dir="rtl"] .btn-submit {
    align-self: flex-start;
}

.form-status {
    font-size: 0.95rem;
    margin-top: -1rem;
    min-height: 1.5rem;
}

.form-status.success {
    color: #10b981;
}

.form-status.error {
    color: #ef4444;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    background: rgba(5, 8, 20, 0.9);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.copy-text, .design-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Responsive & Adaptive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.8rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 6rem 0 3rem 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(7, 11, 25, 0.95);
        backdrop-filter: blur(15px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem;
        transition: var(--transition-normal);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    html[dir="rtl"] .hero-content {
        align-items: center;
    }
    
    .hero-desc {
        margin: 0 auto 2rem auto;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
        min-height: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}