:root {
    --primary: #d65a2a; /* Rust Orange */
    --primary-glow: rgba(214, 90, 42, 0.4);
    --bg-dark: #050508;
    --bg-card: rgba(20, 20, 25, 0.6);
    --text-white: #ffffff;
    --text-gray: #a0a0b0;
    --nav-bg: rgba(5, 5, 8, 0.8);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --font-ar: 'Tajawal', sans-serif;
    --font-en: 'Outfit', sans-serif;
}

[lang="ar"] {
    --current-font: var(--font-ar);
}

[lang="en"] {
    --current-font: var(--font-en);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 20%, rgba(214, 90, 42, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(214, 90, 42, 0.05) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(214, 90, 42, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo {
    height: 48px;
    width: auto;
    filter: invert(1);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
    transition: var(--transition);
}

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

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

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

.btn-lang {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

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

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

.hero-content-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    min-height: 80vh;
}

.hero-text {
    flex: 1.2;
}

.greeting {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    display: block;
}

.name {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.en-name {
    font-size: 2.5rem;
    font-weight: 300;
    opacity: 0.6;
    display: block;
}

.role-container {
    height: 3rem;
    margin-bottom: 2rem;
}

.role-text {
    font-size: 1.8rem;
    color: var(--text-gray);
    border-right: 3px solid var(--primary);
    padding-right: 10px;
}

[dir="ltr"] .role-text {
    border-right: none;
    border-left: 3px solid var(--primary);
    padding-right: 0;
    padding-left: 10px;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 600px;
}

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

/* Profile Image */
.hero-image-container {
    flex: 0.8;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card {
    position: relative;
    width: 320px;
    height: 400px;
    border-radius: 30px;
    overflow: hidden;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 40px 80px rgba(0,0,0,0.5);
    transition: var(--transition);
}

.profile-card:hover {
    transform: translateY(-10px) rotate(2deg);
    border-color: var(--primary);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.9);
}

.profile-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: -1;
}

/* Sections */
section {
    padding: 8rem 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
}

.underline {
    width: 80px;
    height: 4px;
    background: var(--primary);
    margin: 1rem auto;
}

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

.expertise-card {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.expertise-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    background: rgba(214, 90, 42, 0.05);
}

.icon-box {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

/* Collaborations */
.collab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.collab-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    text-align: center;
}

.collab-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    background: rgba(214, 90, 42, 0.05);
}

.collab-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.collab-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.collab-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--primary);
}

.project-info {
    padding: 2.5rem;
}

.project-info h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1.5rem 0;
}

.tags span {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.project-link:hover {
    gap: 1.2rem;
}

/* Contact */
.contact-card {
    background: linear-gradient(135deg, rgba(214, 90, 42, 0.1) 0%, rgba(5, 5, 8, 1) 100%);
    padding: 5rem;
    border-radius: 40px;
    text-align: center;
    border: 1px solid rgba(214, 90, 42, 0.2);
}

.contact-card h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0 3rem;
}

.social-links a {
    font-size: 1.8rem;
    color: var(--text-white);
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary);
    transform: scale(1.2);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: var(--text-white);
    border: none;
    box-shadow: 0 10px 20px rgba(214, 90, 42, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(214, 90, 42, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-white);
}

/* Animations */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Mobile Responsive */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition);
}

@media (max-width: 992px) {
    .hero-content-wrapper {
        flex-direction: column-reverse;
        text-align: center;
        gap: 3rem;
        padding-top: 50px;
    }

    .hero-text {
        width: 100%;
    }

    .hero-image-container {
        width: 100%;
    }

    .name {
        font-size: 3rem;
    }

    .en-name {
        font-size: 1.8rem;
    }

    .hero-desc {
        margin: 0 auto 2rem;
    }

    .hero-btns {
        justify-content: center;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 2rem;
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}