body {margin: 0; font-family: Arial, sans-serif;}
header {
	background: url('images/bg/11.jpg') no-repeat center;
	padding: 85px;
	color: white;
	text-align: center;
	background-color: #333; /* fallback */
}
header .h1 {font: 2em Arial; margin: 0; padding: 0;}
nav {background-color: #444;}
nav ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
}
nav ul li {position: relative;}
nav ul li a {
	display: block;
	padding: 15px 20px;
	color: white;
	text-decoration: none;
}
nav ul li:hover > ul {display: block;}
nav ul ul {
	display: none;
	position: absolute;
	background-color: #555;
	min-width: 200px;
	top: 100%;
	left: 0;
	z-index: 1000;
}
nav ul ul li {
	display: flex;
	align-items: center;
}
nav ul ul li img {
	width: 90px;
	height: 80px;
	margin: 5px;
}
nav ul ul li a {
	padding: 0;
	display: flex;
	align-items: center;
	gap: 0;
}

.slider {
  position: relative;
  width: 960px;
  height: 320px;
  margin: 0 auto;
  overflow: hidden;
}
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 960px;
  height: 320px;
  opacity: 0;
  animation: fade 16s infinite;
}
.slide:nth-child(1) { animation-delay: 0s; }
.slide:nth-child(2) { animation-delay: 4s; }
.slide:nth-child(3) { animation-delay: 8s; }
.slide:nth-child(4) { animation-delay: 12s; }
@keyframes fade {
  0%    { opacity: 0; }
  5%    { opacity: 1; }
  25%   { opacity: 1; }
  30%   { opacity: 0; }
  100%  { opacity: 0; }
}
.slide img {
  width: 960px;
  height: 320px;
  object-fit: cover;
}
@media (max-width: 960px) {
	.slider, .slide, .slide img {width: 100%;}
}

.slider .slide {
  position: absolute;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}
.slider .slide.active {
  opacity: 1;
  position: relative;
  z-index: 1;
}

.caption {
  position: absolute;
  bottom: 15px;
  left: 0;
  width: 100%;
  text-align: center;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 18px;
  padding: 10px 0;
}

.caption a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

.slide.active .caption a:hover {color: #ffc107;}

.slide-description {
	text-align: center;
	margin-top: 10px;
}
aside {
	background-color: #f4f4f4;
	padding: 20px;
}
main {padding: 20px;}
.products {
	display: flex;
	flex-wrap: wrap;
	gap: 20px;
	justify-content: space-between;
	margin-top: 20px;
}
.product {
	width: calc(25% - 20px);
	background: #eee;
	padding: 10px;
	box-sizing: border-box;
	text-align: center;
}
.product img {
	width: 100%;
	height: auto;
}
.left {float: left; margin-right: 10px}
.shadow {box-shadow: 2px 2px 4px rgba(0,0,0,0.5)}
img.left {float: left; margin: 0 9px 9px 0;}
img.right {float: right; margin: 0 0 9px 9px;}
img.center {margin-left:auto; margin-right:auto}
img.right.shadow {box-shadow: -2px 2px 4px rgba(0, 0, 0, 0.506);}

.w100 {width: 100%}
.w50 {width: 49%}
.w66 {width: 66%}
.w33 {width: calc(33% - 3px); margin-right: 6px;}
.last {margin-right: 0}
.clear{clear:both}


footer {
	background-color: #282631;
	color: white;
	display: flex;
	flex-wrap: wrap;
	padding: 20px;
	justify-content: space-between;
}
footer div {
	flex: 1 1 200px;
	margin: 10px;
}
footer img {height: auto; width: 100%;}
footer a {color: #fc9040;}
a.inst {color: #fff; font-size: 26px; text-decoration: none;}
.icon {vertical-align: middle; width: 48px;}

.copyright {
	text-align: center;
	padding: 10px;
	background-color: #1d1b24;
	color: #aaa;
	font-size: 14px;
}
@media (max-width: 768px) {
	nav ul {flex-direction: column;}
	.products {flex-direction: column;}
	.product {width: 100%;}
}