/* CSS Variables & Design System */
:root {
    /* Color Palette - Light Mode */
    --primary: #0052cc;
    --primary-light: #4c8bf5;
    --primary-dark: #003d99;
    --secondary: #f5a623;
    --secondary-hover: #d48b1c;
    
    --bg-base: #ffffff;
    --bg-alt: #f8f9fa;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    
    --border-color: #e5e7eb;
    
    /* Typography */
    --font-en: 'Outfit', sans-serif;
    --font-ar: 'Cairo', sans-serif;
    --font-base: var(--font-en); /* Default */
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --secondary: #fbbf24;
    --secondary-hover: #f59e0b;
    
    --bg-base: #0f172a;
    --bg-alt: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    
    --border-color: #334155;
}

/* RTL Specific overwrites */
[dir="rtl"] {
    --font-base: var(--font-ar);
}

/* Reset & Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: var(--font-base);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.bg-alt {
    background-color: var(--bg-alt);
}

.grid {
    display: grid;
    gap: 2rem;
}

.flex-row {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.align-center {
    align-items: center;
}

.w-100 {
    width: 100%;
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0,0,0,0.15);
}

/* Typography elements */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

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

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.divider {
    height: 4px;
    width: 60px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 0 auto;
    border-radius: 2px;
}
.divider.left { margin: 0; margin-bottom: 1.5rem; }
[dir="rtl"] .divider.left { margin: 0 0 1.5rem 0; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 82, 204, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.icon-btn:hover {
    background: rgba(128,128,128, 0.1);
    color: var(--primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}
[dir="rtl"] .nav-links a::after {
    left: auto;
    right: 0;
}

.nav-links a:hover {
    color: var(--primary);
}

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

.controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    background: rgba(128,128,128, 0.1);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: var(--text-primary);
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem; /* account for navbar */
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-bg .overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.4) 100%);
}
[dir="rtl"] .hero-bg .overlay {
    background: linear-gradient(to left, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-content {
    max-width: 800px;
    color: #fff; /* Always light on hero */
}
[dir="rtl"] .hero-content {
    margin-right: 0;
    margin-left: auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: #e2e8f0;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}
.hero-btns .btn-outline {
    border-color: #fff;
    color: #fff;
}
.hero-btns .btn-outline:hover {
    background: #fff;
    color: #0f172a;
}

/* Services */
.services-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

/* Products */
.products-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.product-card {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.product-img-wrapper {
    height: 220px;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.2);
}

.product-info {
    padding: 1.5rem;
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}
[dir="rtl"] .read-more i {
    transform: rotate(180deg);
}
.read-more:hover {
    color: var(--secondary);
}

/* About Section */
.about-content {
    flex: 1;
    min-width: 300px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.glass-box {
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}
.glass-box img {
    width: 100%;
    border-radius: calc(var(--radius) - 8px);
    display: block;
}

.stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item h4 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.2rem;
}
.stat-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Contact */
.contact-grid {
    grid-template-columns: 1fr 2fr;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 0.2rem;
}

/* Floating label form */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group textarea {
    resize: vertical;
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--text-secondary);
    transition: var(--transition);
    pointer-events: none;
    background: var(--bg-base);
    padding: 0 0.2rem;
}
[dir="rtl"] .form-group label {
    left: auto;
    right: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -0.5rem;
    font-size: 0.8rem;
    color: var(--primary);
}

/* Footer */
.footer {
    background-color: #0f172a; /* Always dark */
    color: #cbd5e1;
    padding-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo-text {
    color: #fff;
}

.footer-brand p {
    color: #94a3b8;
    margin-top: 1rem;
}

.socials {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: var(--transition);
}

.socials a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links h4 {
    color: #fff;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #64748b;
}

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.animate-up.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.active {
    opacity: 1;
    transform: scale(1);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-menu-btn {
        display: inline-flex;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .stats {
        flex-direction: column;
        gap: 1rem;
    }
}