:root {
    /* الوضع الافتراضي: رسمي أزرق */
    --primary-color: #1a237e;
    --secondary-color: #3949ab;
    --accent-color: #00bcd4;
    --background-color: #f5f7fa;
    --surface-color: #fff;
    --border-color: #e0e3e7;
    --text-dark: #212121;
    --text-light: #5c6bc0;
}

body.theme-blue {
    /* رسمي أزرق (افتراضي) */
    --primary-color: #1a237e;
    --secondary-color: #3949ab;
    --accent-color: #00bcd4;
    --background-color: #f5f7fa;
    --surface-color: #fff;
    --border-color: #e0e3e7;
    --text-dark: #212121;
    --text-light: #5c6bc0;
}

body.theme-green {
    /* ثيم أخضر عصري */
    --primary-color: #388e3c;
    --secondary-color: #66bb6a;
    --accent-color: #cddc39;
    --background-color: #f1f8e9;
    --surface-color: #fff;
    --border-color: #dcedc8;
    --text-dark: #1b5e20;
    --text-light: #81c784;
}

body.theme-dark {
    /* ثيم داكن أنيق */
    --primary-color: #23272f;
    --secondary-color: #393e46;
    --accent-color: #00adb5;
    --background-color: #181a20;
    --surface-color: #23272f;
    --border-color: #393e46;
    --text-dark: #f5f7fa;
    --text-light: #b0bec5;
}

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

body {
    font-family: 'Cairo', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--background-color);
}

/* Navigation */
.navbar {
    background: var(--primary-color);
    box-shadow: 0 2px 16px rgba(26, 35, 126, 0.08);
    transition: all 0.3s ease;
}

.navbar-brand {
    color: var(--accent-color) !important;
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    color: #fff !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
    background: rgba(251, 192, 45, 0.08);
    border-radius: 8px;
    transform: translateY(-2px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--accent-color);
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
    left: 0;
}

.language-toggle .btn {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.language-toggle .btn:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.1)"><polygon points="1000,100 1000,0 0,100"/></svg>');
    background-size: 100% 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 100px;
}

.hero-icon {
    font-size: 15rem;
    color: rgba(255, 255, 255, 0.1);
    animation: float 3s ease-in-out infinite;
}

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

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.12);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Service Cards */
.service-card {
    background: var(--surface-color);
    color: var(--primary-color);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(26, 35, 126, 0.06);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(26, 35, 126, 0.10);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.service-icon i {
    font-size: 2rem;
    color: #fff;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h4 {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about-icon {
    font-size: 12rem;
    color: var(--primary-color);
    opacity: 0.08;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.stat-item {
    text-align: center;
    padding: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-weight: 500;
    margin: 0;
}

/* Course Cards */
.course-card {
    background: var(--surface-color);
    color: var(--primary-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(26, 35, 126, 0.06);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(26, 35, 126, 0.10);
    border-color: var(--primary-color);
}

.course-header {
    background: var(--secondary-color);
    color: #fff;
    padding: 1.5rem;
    text-align: center;
}

.course-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.course-body {
    padding: 2rem;
}

.course-card h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    margin: 1rem 0;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.course-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-align: center;
    margin: 1rem 0;
    letter-spacing: 1px;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--surface-color);
    color: var(--primary-color);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(26, 35, 126, 0.06);
}

.form-floating > .form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.form-floating > .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(26, 35, 126, 0.10);
}

.form-floating > label {
    color: var(--text-light);
}

/* Contact Info Cards */
.contact-info-card {
    background: var(--surface-color);
    color: var(--primary-color);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(26, 35, 126, 0.06);
    transition: all 0.3s ease;
    height: 100%;
}

.contact-info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(26, 35, 126, 0.10);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.contact-icon i {
    font-size: 1.5rem;
    color: #fff;
}

.contact-info-card h5 {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.contact-info-card a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info-card a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--accent-color);
}

.footer-brand {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        text-align: center;
        padding-top: 120px;
    }
    
    .hero-icon {
        font-size: 8rem;
        margin-top: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-form-wrapper {
        padding: 2rem;
    }
    
    .navbar-nav {
        text-align: center;
        margin-top: 1rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Language Direction */
[dir="ltr"] .navbar-brand {
    order: 1;
}

[dir="ltr"] .language-toggle {
    order: 2;
}

[dir="ltr"] .navbar-toggler {
    order: 3;
}

[dir="ltr"] .navbar-collapse {
    order: 4;
}

[dir="ltr"] .navbar-nav {
    margin-left: auto;
    margin-right: 0;
}

[dir="ltr"] .section-title::after {
    left: 0;
    transform: none;
}

[dir="ltr"] .text-md-end {
    text-align: left !important;
}