/* استایل هدر */
.app-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    padding: 30px 0;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
}

.header-content {
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.logo i {
    font-size: 36px;
    color: var(--accent-color);
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
}

.app-description {
    font-size: 16px;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}