/* هدر و ناوبری */
.navbar {
    background: var(--gradient-bg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

.navbar-brand {
    font-weight: 700;
    color: white !important;
    font-size: 1.5rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: white !important;
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    right: 0;
    background-color: white;
    transition: width 0.3s ease;
}

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

.btn-primary {
    background: var(--gradient-btn);
    border: none;
    border-radius: 30px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 78, 141, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 78, 141, 0.4);
}