:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Outfit', sans-serif;

    /* Theme Variables - Dark Mode (Default) */
    --bg-primary: #0a0a12;
    --bg-secondary: #13131f;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-color: #ff007f; /* Neon Pink (Bink) */
    --accent-secondary: #00e5ff; /* Cyan */
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-bg: radial-gradient(circle at 10% 20%, rgba(255, 0, 127, 0.1) 0%, transparent 20%),
                   radial-gradient(circle at 90% 80%, rgba(0, 229, 255, 0.1) 0%, transparent 20%);
}

[data-theme="light"] {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #555566;
    --accent-color: #ff007f; /* Keeping neon accents */
    --accent-secondary: #0077cc; /* Darker Blue for light mode */
    --card-bg: rgba(255, 255, 255, 0.8);
    --border-color: rgba(0, 0, 0, 0.1);

    --gradient-bg: radial-gradient(circle at 10% 20%, rgba(255, 0, 127, 0.05) 0%, transparent 20%),
                   radial-gradient(circle at 90% 80%, rgba(0, 119, 204, 0.05) 0%, transparent 20%);
}

[lang="ar"] {
    --font-heading: 'Tajawal', sans-serif;
    --font-body: 'Tajawal', sans-serif;
    direction: rtl;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

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

/* Background overlay for subtle grid */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: var(--gradient-bg), 
                      linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    z-index: -1;
}

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

/* Reusable Components */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    letter-spacing: 1px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-color), var(--accent-secondary));
    color: white;
    border: none;
}

.btn-primary:hover {
    box-shadow: 0 0 15px var(--accent-color);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: rgba(0, 229, 255, 0.1);
    transform: translateY(-2px);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    color: var(--accent-secondary);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 10px auto 0;
}

/* Header & Nav */
header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(10, 10, 18, 0.8); /* Semi-transparent */
    backdrop-filter: blur(10px);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.dot {
    color: var(--accent-color);
}

.nav-controls {
    display: flex;
    gap: 15px;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.btn-icon:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.lang-text {
    font-weight: 700;
    font-size: 0.9rem;
}

/* Hero Section */
.hero-section {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.hero-content h2 {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* About Section */
.about-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Skills Section */
.skills-section {
    padding: 80px 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    justify-items: center;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    width: 100%;
    transition: transform 0.3s;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.skill-card i {
    font-size: 2.5rem;
    color: var(--accent-secondary);
    margin-bottom: 10px;
    display: block;
}

/* Projects Section */
.projects-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
}

.project-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.project-links {
    display: flex;
    gap: 15px;
}

.btn-small {
    font-size: 0.9rem;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}

.btn-small:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Education Section */
.education-section {
    padding: 80px 0;
}

.education-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.education-card .status {
    color: var(--accent-secondary);
    font-weight: 600;
    margin-top: 10px;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.social-links {
    margin-bottom: 40px;
}

.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    color: var(--text-primary);
    border-radius: 50%;
    margin: 0 10px;
    font-size: 1.2rem;
    text-decoration: none;
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: scale(1.1);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-secondary);
}

/* Footer */
footer {
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 { font-size: 2.5rem; }
    .cta-buttons { flex-direction: column; }
    .nav-controls { gap: 10px; }
}