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

:root {
    /* Colors - Etakhod Brand Colors (Blue Theme) */
    --primary-color: #1565C0;        /* Deep Blue - الأزرق العميق */
    --primary-light: #42A5F5;        /* Light Blue - الأزرق الفاتح */
    --primary-dark: #0D47A1;         /* Very Dark Blue - الأزرق الغامق جداً */
    --secondary-color: #64B5F6;      /* Light Blue - الأزرق الفاتح */
    --accent-color: #E3F2FD;         /* Very Light Blue - الأزرق الفاتح جداً */
    --text-primary: #0D47A1;         /* Very Dark Blue for text */
    --text-secondary: #1565C0;       /* Primary Blue for secondary text */
    --text-light: #64B5F6;           /* Light Blue for muted text */
    --background: #FFFFFF;           /* Pure White */
    --background-light: #F8F9FA;     /* Very Light Gray */
    --background-dark: #E3F2FD;      /* Very Light Blue background */
    --border-color: #64B5F6;
    --shadow-light: rgba(21, 101, 192, 0.1);    /* Light blue shadow */
    --shadow-medium: rgba(21, 101, 192, 0.15);  /* Medium blue shadow */
    --shadow-dark: rgba(13, 71, 161, 0.2);      /* Dark blue shadow */
    --shadow-blue: rgba(100, 181, 246, 0.2);   /* Light blue shadow for accents */
    
    /* Typography */
    --font-family: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    direction: rtl;
    text-align: right;
}

/* English Language Styles */
body.en {
    direction: ltr;
    text-align: left;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Language Toggle */
.language-toggle {
    position: fixed;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    z-index: 1000;
}

.lang-btn {
    background: var(--background);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 2px 8px var(--shadow-light);
}

.lang-btn:hover {
    background: var(--primary-color);
    color: var(--background);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

/* Header */
.header {
    background: var(--background);
    box-shadow: 0 2px 10px var(--shadow-light);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
    transition: all var(--transition-normal);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.brand-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    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(--primary-color);
    transition: width var(--transition-normal);
}

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

.nav-toggle {
    display: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--background);
    border: 1px solid var(--secondary-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-blue);
    border-color: var(--accent-color);
}

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

.btn-outline:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-blue);
    border-color: var(--secondary-color);
}

/* Hero Section */
.hero {
    padding: var(--spacing-5xl) 0 var(--spacing-4xl);
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background-light) 100%);
    margin-top: 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px var(--shadow-medium));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Styles */
section {
    padding: var(--spacing-5xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

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

/* Features Section */
.features {
    background: var(--background-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    background: var(--background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: var(--font-size-2xl);
    color: var(--background);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: var(--background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-medium);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: var(--font-size-xl);
    color: var(--background);
}

.service-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Download Section */
.download {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--background);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.download-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.download-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.download-btn {
    transition: transform var(--transition-normal);
}

.download-btn:hover {
    transform: translateY(-3px);
}

.store-badge {
    height: 60px;
    width: auto;
    border-radius: var(--radius-md);
}

.phones-mockup {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px var(--shadow-blue));
}

/* Contact Section */
.contact {
    background: var(--background-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--background);
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

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

.contact-form {
    background: var(--background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px var(--shadow-light);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: border-color var(--transition-normal);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: var(--background);
    padding: var(--spacing-4xl) 0 var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
                rgba(212, 175, 55, 0.05) 0%, 
                transparent 50%, 
                rgba(244, 228, 188, 0.05) 100%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
}

.footer-brand-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--background);
}

.footer-description {
    color: var(--text-light);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--background);
}

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

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-column ul li a:hover {
    color: var(--background);
}

.footer-social h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--background);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px var(--shadow-blue);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 6px 20px var(--shadow-blue);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content,
    .download-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--background);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: 0 4px 20px var(--shadow-medium);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .language-toggle {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-3xl) 0;
    }
    
    section {
        padding: var(--spacing-3xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .download-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .store-badge {
        height: 50px;
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Scroll animations */
.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease forwards;
}

/* Loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-light: rgba(21, 101, 192, 0.3);    /* Dark mode blue shadow */
        --shadow-medium: rgba(21, 101, 192, 0.4);   /* Dark mode blue shadow */
        --shadow-dark: rgba(13, 71, 161, 0.5);      /* Dark mode blue shadow */
    }
}