@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* CSS Logical Properties and Variables */
:root {
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --font-arabic: 'Cairo', sans-serif;
    
    /* Light Theme (Default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent: #35c493;
    --accent-rgb: 53, 196, 147;
    --accent-hover: #2ebb85;
    --accent-gradient: linear-gradient(135deg, #5ad2a9 0%, #35c493 100%);
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(226, 232, 240, 0.8);
    --card-hover-border: rgba(53, 196, 147, 0.3);
    --shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 20px 40px -15px rgba(15, 23, 42, 0.12);
    --glow: 0 0 50px rgba(53, 196, 147, 0.05);
    --nav-bg: rgba(255, 255, 255, 0.8);
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #5ad2a9;
    --accent-rgb: 90, 210, 169;
    --accent-hover: #7bdbba;
    --accent-gradient: linear-gradient(135deg, #7bdbba 0%, #35c493 100%);
    --card-bg: rgba(17, 24, 39, 0.6);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-hover-border: rgba(90, 210, 169, 0.3);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
    --glow: 0 0 50px rgba(90, 210, 169, 0.08);
    --nav-bg: rgba(11, 15, 25, 0.8);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

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

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

/* RTL Support - Arabic Font Override */
[dir="rtl"] body {
    font-family: var(--font-arabic);
}

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

ul {
    list-style: none;
}

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

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    transition: all var(--transition-fast);
}

.header.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    transition: height var(--transition-fast);
}

.header.scrolled .nav-container {
    height: 64px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--accent-gradient);
    color: #ffffff;
    font-weight: 700;
    -webkit-text-fill-color: #ffffff;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

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

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

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

/* Controls (Lang & Theme) */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Select Styling */
.lang-selector {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 8px 12px;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition-fast);
}

.lang-selector:hover {
    border-color: var(--accent);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px 0;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 80% 20%, rgba(var(--accent-rgb), 0.05) 0%, transparent 50%);
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

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

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 99px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 24px;
    border: 1px solid rgba(var(--accent-rgb), 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-title span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-primary);
    border-color: var(--accent);
}

/* Floating Abstract Graphics (Hero) */
.hero-graphic {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.graphic-container {
    position: relative;
    width: 380px;
    height: 380px;
}

.circle-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--accent-gradient);
    filter: blur(80px);
    opacity: 0.15;
    animation: pulse 8s infinite alternate;
}

.floating-card {
    position: absolute;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 220px;
}

.floating-card-1 {
    top: 20px;
    left: -20px;
    animation: float 6s ease-in-out infinite;
}

.floating-card-2 {
    bottom: 20px;
    right: -20px;
    animation: float 6s ease-in-out infinite 3s;
}

.card-icon-wrapper {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--accent-gradient);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card h4 {
    font-weight: 700;
    font-size: 1.1rem;
}

.floating-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Apps Section */
.section {
    padding: 100px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

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

.apps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.app-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 10%, rgba(var(--accent-rgb), 0.03) 0%, transparent 60%);
    pointer-events: none;
}

.app-card:hover {
    transform: translateY(-8px);
    border-color: var(--card-hover-border);
    box-shadow: var(--shadow-hover);
}

.app-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.app-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--bg-tertiary);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: transform var(--transition-fast);
}

.app-card:hover .app-icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--accent-gradient);
    color: #ffffff;
}

.app-card-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.app-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1rem;
    flex-grow: 1;
}

.app-card-footer {
    display: flex;
    justify-content: flex-end;
}

.app-card-footer .btn {
    width: 100%;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.about-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all var(--transition-smooth);
}

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

.about-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.3rem;
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bg-tertiary);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-info-text h4 {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.contact-info-text p, .contact-info-text a {
    color: var(--text-secondary);
}

.contact-info-text a:hover {
    color: var(--accent);
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    border-color: var(--accent);
}

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

/* Footer */
.footer {
    padding: 40px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--card-border);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 1.2rem;
}

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

/* Animations */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.15; }
    100% { transform: scale(1.1); opacity: 0.25; }
}

/* Responsive Web Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    .apps-grid {
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Hide desktop menu */
    }
    
    .mobile-toggle {
        display: block;
    }
    
    /* Mobile Menu Drawer style (can be toggled via JS) */
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-primary);
        padding: 32px;
        border-bottom: 1px solid var(--card-border);
        box-shadow: var(--shadow);
        gap: 24px;
    }

    [dir="rtl"] .nav-menu.active {
        left: auto;
        right: 0;
    }
    
    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-graphic {
        order: -1;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* RTL Style Adjustments for Arabic */
[dir="rtl"] .hero-content {
    align-items: flex-end;
    text-align: right;
}
[dir="rtl"] .hero-buttons {
    flex-direction: row-reverse;
}
[dir="rtl"] .section-header {
    text-align: right;
}
[dir="rtl"] .app-card {
    text-align: right;
}
[dir="rtl"] .app-card-header {
    flex-direction: row-reverse;
}
[dir="rtl"] .app-card-footer {
    justify-content: flex-start;
}
[dir="rtl"] .about-card {
    text-align: right;
}
[dir="rtl"] .about-card-icon {
    margin-right: 0;
    margin-left: auto;
}
[dir="rtl"] .contact-info-item {
    flex-direction: row-reverse;
}
[dir="rtl"] .contact-info-text {
    text-align: right;
}
[dir="rtl"] .contact-form {
    text-align: right;
}
[dir="rtl"] .floating-card-1 {
    left: auto;
    right: -20px;
}
[dir="rtl"] .floating-card-2 {
    bottom: 20px;
    right: auto;
    left: -20px;
}