/* Preloader Animation */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(26, 82, 118, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

body.loaded #preloader {
    opacity: 0;
    visibility: hidden;
}

/* تحسينات سريعة مهمة */
:root {
    scroll-behavior: smooth;
}

.bg-primary-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.navbar-brand img {
    max-height: 50px;
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.dropdown-menu {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    border: none;
    border-radius: var(--border-radius);
}

.navbar .nav-link {
    position: relative;
    transition: color 0.3s ease;
}

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

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
    width: 70%;
}

.top-bar {
    font-size: 0.9rem;
}

.top-bar a {
    transition: opacity 0.3s ease;
}

.top-bar a:hover {
    opacity: 0.8;
}

.sticky-navbar {
    transition: all 0.3s ease;
}

.navbar-scrolled {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}