/* ===== Desarrollo ===== */
.desarrollo-nosotros-section {
	max-width: 1200px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.desarrollo-nosotros-container {
	display: flex;
	gap: 2.5rem;
	align-items: center;
	flex-wrap: wrap;
}
.desarrollo-nosotros-text {
	flex: 1 1 340px;
}
.desarrollo-nosotros-text h2 {
	color: #1976d2;
	margin-bottom: 0.7rem;
}
.desarrollo-nosotros-img {
	flex: 1 1 260px;
	text-align: right;
}
.desarrollo-nosotros-img img {
	max-width: 340px;
	width: 100%;
	border-radius: 18px;
	box-shadow: 0 2px 16px rgba(33,150,243,0.10);
}

.ia-separator {
	background: linear-gradient(90deg, #1976d2 60%, #4fc3f7 100%);
	color: #fff;
	text-align: center;
	padding: 1.5rem 0 1.2rem 0;
	margin-bottom: 2.5rem;
}
.ia-separator h2 {
	font-size: 2rem;
	font-weight: 700;
	letter-spacing: 2px;
	margin: 0;
}

.desarrollo-servicios-section {
	max-width: 1200px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.desarrollo-servicios-container {
	display: flex;
	gap: 2.5rem;
	align-items: center;
	flex-wrap: wrap;
}
.desarrollo-servicios-img {
	flex: 1 1 260px;
	text-align: left;
}
.desarrollo-servicios-img img {
	max-width: 320px;
	width: 100%;
	border-radius: 18px;
	box-shadow: 0 2px 16px rgba(33,150,243,0.10);
}
.desarrollo-servicios-text {
	flex: 1 1 340px;
}
.desarrollo-servicios-text h2 {
	color: #1976d2;
	margin-bottom: 0.7rem;
}
.desarrollo-servicios-list {
	margin-top: 1.5rem;
	display: flex;
	flex-direction: column;
	gap: 1.2rem;
}
.servicio-item {
	display: flex;
	align-items: flex-start;
	gap: 1.1rem;
}
.servicio-item img {
	width: 48px;
	height: 48px;
	flex-shrink: 0;
}
.servicio-item h4 {
	color: #4fc3f7;
	margin: 0 0 0.2rem 0;
	font-size: 1.1rem;
}
.servicio-item p {
	margin: 0;
	color: #222c36;
	font-size: 1rem;
}

@media (max-width: 900px) {
	.desarrollo-nosotros-container,
	.desarrollo-servicios-container {
		flex-direction: column;
		gap: 1.5rem;
	}
	.desarrollo-nosotros-img,
	.desarrollo-servicios-img {
		text-align: center;
	}
}
/* ===== Slider principal ===== */
.main-slider {
	width: 100%;
	min-height: 500px;
	position: relative;
	overflow: hidden;
	margin-bottom: 2.5rem;
}
.main-slider .slider-slide {
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	width: 100%;
	min-height: 340px;
	background-size: cover;
	background-position: center;
	display: flex;
	align-items: center;
	justify-content: flex-start;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.7s cubic-bezier(.4,0,.2,1);
	z-index: 1;
}
.main-slider .slider-slide:first-child {
	position: absolute;
}
.main-slider .slider-slide[style*='display: flex'],
.main-slider .slider-slide.active {
	opacity: 1;
	pointer-events: auto;
	z-index: 2;
}
.slider-content {
	background: rgba(34,44,54,0.75);
	color: #fff;
	padding: 2.5rem 2rem;
	border-radius: 16px;
	margin-left: auto;
	margin-right: auto;
	max-width: 600px;
	box-shadow: 0 4px 24px rgba(33,150,243,0.10);
	text-align: center;
}
.slider-content h1 {
	font-size: 2.2rem;
	margin-bottom: 0.7rem;
	color: #4fc3f7;
}
.slider-content p {
	font-size: 1.1rem;
	margin-bottom: 1.2rem;
}
.slider-btn {
	background: #1976d2;
	color: #fff;
	padding: 0.7rem 1.7rem;
	border-radius: 24px;
	text-decoration: none;
	font-weight: 500;
	font-size: 1.1rem;
	transition: background 0.2s;
	box-shadow: 0 2px 8px rgba(33,150,243,0.10);
}
.slider-btn:hover {
	background: #1565c0;
}

/* Flechas slider principal */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.7rem;
    color: #fff;
    background: rgba(25, 118, 210, 0.55);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: background 0.2s, color 0.2s;
    user-select: none;
    box-shadow: 0 2px 8px rgba(33,150,243,0.13);
}
.slider-arrow:hover {
    background: #1976d2;
    color: #e3f2fd;
}
.slider-arrow-left {
    left: 24px;
}
.slider-arrow-right {
    right: 24px;
}
@media (max-width: 700px) {
    .slider-arrow {
        font-size: 1.7rem;
        width: 34px;
        height: 34px;
        left: 8px;
        right: 8px;
    }
    .slider-arrow-left {
        left: 8px;
    }
    .slider-arrow-right {
        right: 8px;
    }
}

/* ===== Nosotros ===== */
.nosotros-section {
	max-width: 1200px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.nosotros-container {
	display: flex;
	gap: 2.5rem;
	align-items: center;
	flex-wrap: wrap;
}
.nosotros-text {
	flex: 1 1 340px;
}
.nosotros-text h2 {
	color: #1976d2;
	margin-bottom: 0.7rem;
}
.nosotros-text h3 {
	color: #4fc3f7;
	margin-top: 1.2rem;
	margin-bottom: 0.3rem;
}
.nosotros-img {
	flex: 1 1 260px;
	text-align: right;
}
.nosotros-img img {
	max-width: 340px;
	width: 100%;
	border-radius: 18px;
	box-shadow: 0 2px 16px rgba(33,150,243,0.10);
}

/* ===== Categorías slider ===== */
.categorias-section {
	background: #f5f7fa;
	padding: 2.5rem 0 2rem 0;
	margin-bottom: 2.5rem;
}
.categorias-section h2 {
	text-align: center;
	color: #1976d2;
	margin-bottom: 2rem;
}
.categorias-slider {
	display: flex;
	gap: 1.5rem;
	justify-content: center;
	flex-wrap: wrap;
}
.categoria-card {
	background: #fff;
	border-radius: 14px;
	box-shadow: 0 2px 12px rgba(33,150,243,0.07);
	padding: 1.2rem 1rem 0.7rem 1rem;
	text-align: center;
	width: 300px;
	min-width: 140px;
	transition: transform 0.18s, box-shadow 0.18s;
	cursor: pointer;
}
.categoria-card a {
	text-decoration: none;
	display: block;
}
.categoria-card img {
	width: 100%;
	height: 100px;
	object-fit: cover;
	border-radius: 10px;
	margin-bottom: 0.7rem;
	transition: transform 0.3s;
}
.categoria-card span {
	color: #1976d2;
	font-weight: 500;
	font-size: 1.08rem;
	display: block;
	padding: 0.5rem 0;
}
.categoria-card:hover {
	transform: translateY(-6px) scale(1.04);
	box-shadow: 0 6px 24px rgba(33,150,243,0.13);
}
.categoria-card:hover img {
	transform: scale(1.08);
}

/* ===== Productos destacados ===== */
.destacados-section {
	max-width: 1200px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.destacados-section h2 {
	color: #1976d2;
	margin-bottom: 2rem;
	text-align: center;
}
.productos-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 2rem;
}
.producto-card {
	background: #fff;
	border-radius: 14px;
	box-shadow: 0 2px 12px rgba(33,150,243,0.07);
	padding: 1.2rem 1rem 1.2rem 1rem;
	text-align: center;
	transition: transform 0.18s, box-shadow 0.18s;
	cursor: pointer;
	display: flex;
	flex-direction: column;
}
.producto-card img, .producto-card .no-image {
	width: 100%;
	height: 300px;
	object-fit: cover;
	border-radius: 10px;
	margin-bottom: 0.7rem;
}
.producto-card .no-image {
	background: #f5f5f5;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #ccc;
	font-size: 2rem;
}
.producto-card h4 {
	color: #1976d2;
	margin: 0.7rem 0 0.3rem 0;
}
.producto-card p {
	color: #222c36;
	font-weight: 500;
	margin-bottom: 1rem;
}
.btn-comprar {
	background: #4fc3f7;
	color: #fff;
	border-radius: 18px;
	padding: 0.5rem 1.2rem;
	text-decoration: none;
	font-weight: 500;
	transition: background 0.2s;
	border: none;
	cursor: pointer;
	font-size: 1rem;
	margin-top: auto;
}
.btn-comprar:hover {
	background: #1976d2;
}
.producto-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 20px rgba(33,150,243,0.12);
}

/* ===== CTA ===== */
.cta-section {
	background: linear-gradient(90deg, #1976d2 60%, #4fc3f7 100%);
	color: #fff;
	padding: 2.5rem 0;
	text-align: center;
	margin-bottom: 2.5rem;
}
.cta-content h2 {
	font-size: 2rem;
	margin-bottom: 1.2rem;
}
.cta-btn {
	background: #fff;
	color: #1976d2;
	border-radius: 24px;
	padding: 0.7rem 2.2rem;
	font-weight: 600;
	font-size: 1.1rem;
	text-decoration: none;
	transition: background 0.2s, color 0.2s;
	box-shadow: 0 2px 8px rgba(33,150,243,0.10);
}
.cta-btn:hover {
	background: #e3f2fd;
	color: #1565c0;
}

/* ===== Noticias ===== */
.noticias-section {
	max-width: 1200px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.noticias-section h2 {
	color: #1976d2;
	margin-bottom: 2rem;
	text-align: center;
}
.noticias-grid {
	display: flex;
	gap: 2rem;
	flex-wrap: wrap;
	justify-content: center;
}
.noticia-card {
	background: #fff;
	border-radius: 14px;
	box-shadow: 0 2px 12px rgba(33,150,243,0.07);
	padding: 1.2rem 1rem 1.2rem 1rem;
	text-align: center;
	width: 320px;
	transition: transform 0.18s, box-shadow 0.18s;
	cursor: pointer;
}
.noticia-card img {
	width: 100%;
	height: 120px;
	object-fit: cover;
	border-radius: 10px;
	margin-bottom: 0.7rem;
}
.noticia-card h4 {
	color: #1976d2;
	margin: 0.7rem 0 0.3rem 0;
}
.noticia-card p {
	color: #222c36;
	margin-bottom: 1rem;
}
.noticia-link {
	color: #4fc3f7;
	text-decoration: none;
	font-weight: 500;
	transition: color 0.2s;
}
.noticia-link:hover {
	color: #1976d2;
}

/* ===== Mapa ===== */
.mapa-section {
	width: 100%;
	margin-bottom: 2.5rem;
	border-top: 2px solid #e3f2fd;
	border-bottom: 2px solid #e3f2fd;
	background: #f5f7fa;
}
.mapa-section iframe {
	border-radius: 0;
	width: 100%;
	min-height: 320px;
	display: block;
}

/* ===== Contacto ===== */
.contacto-section {
	max-width: 600px;
	margin: 0 auto 3rem auto;
	padding: 0 2vw;
}
.contacto-section h2 {
	color: #1976d2;
	margin-bottom: 1.5rem;
	text-align: center;
}
.contacto-form {
	display: flex;
	flex-direction: column;
	gap: 1.1rem;
}
.contacto-form input,
.contacto-form textarea {
	padding: 0.7rem 1rem;
	border-radius: 8px;
	border: 1px solid #b0bec5;
	font-size: 1rem;
	font-family: inherit;
	resize: none;
}
.contacto-form textarea {
	min-height: 90px;
}
.contacto-form button {
	background: #1976d2;
	color: #fff;
	border: none;
	border-radius: 18px;
	padding: 0.7rem 1.7rem;
	font-size: 1.1rem;
	font-weight: 500;
	cursor: pointer;
	transition: background 0.2s;
}
.contacto-form button:hover {
	background: #1565c0;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
	.productos-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (max-width: 900px) {
	.nosotros-container {
		flex-direction: column;
		gap: 1.5rem;
	}
	.productos-grid {
		grid-template-columns: 1fr;
	}
	.categorias-slider {
		gap: 1rem;
	}
}
@media (max-width: 700px) {
	.main-slider .slider-slide,
	.main-slider {
		min-height: 220px;
	}
	.slider-content {
		margin-left: 0;
		padding: 1.2rem 0.7rem;
		max-width: 98vw;
	}
	.categorias-slider {
		flex-wrap: wrap;
		gap: 0.7rem;
	}
	.categoria-card {
		width: 48vw;
		min-width: 120px;
	}
	.productos-grid {
		gap: 1rem;
	}
	.noticias-grid {
		gap: 1rem;
	}
}
/* Buscador en header */
.search-bar {
	display: flex;
	align-items: center;
	margin: 0 1.5rem 0 2rem;
	background: #f5f7fa;
	border-radius: 24px;
	padding: 2px 10px 2px 16px;
	box-shadow: 0 1px 4px rgba(33,150,243,0.04);
	border: 1px solid #e3f2fd;
	min-width: 220px;
	max-width: 320px;
}
.search-bar input[type="text"] {
	border: none;
	background: transparent;
	outline: none;
	font-size: 1rem;
	color: #222c36;
	width: 100%;
	padding: 7px 0;
}
.search-bar button {
	background: none;
	border: none;
	cursor: pointer;
	padding: 0 6px;
	display: flex;
	align-items: center;
	transition: filter 0.2s;
}
.search-bar button:hover img {
	filter: brightness(0.7) sepia(1) hue-rotate(180deg) saturate(2);
}

/* Dropdown productos */
.dropdown {
	position: relative;
	display: inline-block;
}
.dropdown-toggle {
	cursor: pointer;
	display: flex;
	align-items: center;
	gap: 4px;
}
.dropdown-menu {
	display: none;
	position: absolute;
	top: 110%;
	left: 0;
	background: #fff;
	min-width: 180px;
	box-shadow: 0 4px 16px rgba(0,0,0,0.10);
	border-radius: 8px;
	z-index: 300;
	flex-direction: column;
	padding: 0.5rem 0;
	border: 1px solid #e3f2fd;
}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
	display: flex;
}
.dropdown-menu a {
	color: #222c36;
	padding: 0.6rem 1.2rem;
	text-decoration: none;
	transition: background 0.2s, color 0.2s;
	border-radius: 0;
	font-size: 1rem;
}
.dropdown-menu a:hover {
	background: #e3f2fd;
	color: #1976d2;
}

/* Login button */
.nav-login {
	background: #1976d2;
	color: #fff !important;
	border-radius: 18px;
	padding: 0.4rem 1.1rem;
	margin-left: 0.7rem;
	font-weight: 500;
	transition: background 0.2s, color 0.2s;
	text-decoration: none;
	box-shadow: 0 1px 4px rgba(33,150,243,0.08);
}
.nav-login:hover {
	background: #1565c0;
	color: #fff;
}

/* Responsive mejoras */
@media (max-width: 900px) {
	.search-bar {
		margin: 0 0.5rem 0 1rem;
		min-width: 120px;
		max-width: 180px;
	}
}
@media (max-width: 700px) {
	.logo-nav {
		flex-direction: row;
		align-items: center;
		justify-content: space-between;
	}
	.search-bar {
		order: 3;
		margin: 0.7rem 0 0 0;
		width: 100%;
		max-width: none;
	}
	.main-header {
		padding-bottom: 0.5rem;
	}
	.dropdown-menu {
		position: static;
		box-shadow: none;
		border-radius: 0;
		border: none;
		min-width: 100%;
	}
}
/* Estilos base para Grupo SEIC */
body {
	background: #fff;
	color: #222;
	font-family: 'Segoe UI', Arial, sans-serif;
	margin: 0;
	padding: 0;
}

/* Top bar */
.top-bar {
	background: #222c36;
	color: #fff;
	font-size: 0.95rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.3rem 2vw;
}
.top-bar a {
	color: #4fc3f7;
	text-decoration: none;
	margin-left: 1rem;
	transition: color 0.2s;
}
.top-bar a:hover {
	color: #1976d2;
}
.top-bar-left span {
	margin-right: 1.5rem;
}

/* Header principal */
.main-header {
	background: #fff;
	box-shadow: 0 2px 8px rgba(0,0,0,0.04);
	padding: 0.5rem 0;
	position: sticky;
	top: 0;
	z-index: 100;
}
.logo-nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0;
}
.logo img {
	height: 60px;
}
.nav-menu {
	display: flex;
	align-items: center;
	gap: 0;
}
.nav-menu ul li{
	padding: 0.4rem 0.7rem;
	border-bottom: 1px solid #eee;
}
.nav-menu ul {
	list-style: none;	
	margin: 0;
	padding: 0;
}
.nav-menu a {
	color: #222c36;
	text-decoration: none;
	font-weight: 500;
	padding: 0.4rem 0.7rem;
	border-radius: 4px;
	transition: background 0.2s, color 0.2s;
}
.dropdown-menu{
	min-width: 200px !important;
}
.nav-menu a:hover, .nav-menu a.active {
	background: #e3f2fd;
	color: #1976d2;
}
.nav-icon {
	position: relative;
}
.nav-icon img, .nav-icon i {
	vertical-align: middle;
}
.cart-icon {
	position: relative;
}
.cart-count {
	position: absolute;
	top: -8px;
	right: -8px;
	background-color: #f44336;
	color: white;
	font-size: 0.7rem;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: bold;
}
.menu-toggle {
	display: none;
	flex-direction: column;
	gap: 4px;
	background: none;
	border: none;
	cursor: pointer;
}
.menu-toggle span {
	display: block;
	width: 26px;
	height: 3px;
	background: #1976d2;
	border-radius: 2px;
}

/* Footer */
.main-footer {
	background: #222c36;
	color: #fff;
	padding: 2.5rem 0 0.5rem 0;
	margin-top: 0;
}
.footer-container {
	display: flex;
	flex-wrap: wrap;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 2vw;
	gap: 2rem;
}
.footer-col {
	flex: 1 1 220px;
	min-width: 220px;
}
.footer-col-logo img {
	margin-bottom: 0.7rem;
}
.footer-col-links ul {
	list-style: none;
	padding: 0;
}
.footer-col-links li {
	margin-bottom: 0.5rem;
}
.footer-col-links a {
	color: #4fc3f7;
	text-decoration: none;
	transition: color 0.2s;
}
.footer-col-links a:hover {
	color: #fff;
}
.footer-col-contact h4 {
	margin-bottom: 0.5rem;
}
.footer-social a {
	margin-right: 0.7rem;
	display: inline-block;
}
.footer-bottom {
	text-align: center;
	font-size: 0.95rem;
	color: #b0bec5;
	margin-top: 2rem;
}

/* Responsive */
@media (max-width: 900px) {
	.logo-nav {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.7rem;
	}
	.footer-container {
		flex-direction: column;
		gap: 1.5rem;
	}
}
@media (max-width: 700px) {
	.nav-menu {
		display: none;
		position: absolute;
		top: 70px;
		right: 0;
		left: 0;
		background: #fff;
		flex-direction: column;
		box-shadow: 0 4px 16px rgba(0,0,0,0.08);
		border-radius: 0;
		padding: 1rem 0.5rem;
		z-index: 200;
		min-width: 100%;
		align-items: flex-start;
	}
	.nav-menu.open {
		display: flex;
	}
	.menu-toggle {
		display: flex;
	}
	.nav-menu a {
		width: 100%;
		box-sizing: border-box;
	}
	.search-bar {
		margin: 0;
		width: 100%;
	}
	.logo-nav {
		flex-wrap: wrap;
	}
}

/* ===== Clientes logos (ajuste filas y columnas) ===== */
.clientes-logos-section {
    background: #fff;
    padding: 2.2rem 0 2.2rem 0;
    margin-bottom: 0;
}
.clientes-logos-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2.5rem 3.5rem;
    max-width: 90%;
    margin: 0 auto;
}
.cliente-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    min-height: 60px;
    max-width: 160px;
    max-height: 90px;
    overflow: hidden;
    margin: 0 auto;
}
.cliente-logo img {
    display: block;
    max-width: 100%;
    max-height: 80px;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
    margin: 0 auto;
    filter: grayscale(0.2) contrast(1.1);
    transition: filter 0.2s, transform 0.2s;
}
.cliente-logo img:hover {
    filter: grayscale(0) contrast(1.2) drop-shadow(0 2px 8px #1976d233);
    transform: scale(1.07);
}
@media (max-width: 900px) {
    .clientes-logos-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem 1.5rem;
    }
    .cliente-logo {
        max-width: 100px;
        max-height: 60px;
    }
    .cliente-logo img {
        max-width: 80px;
        max-height: 40px;
    }
}

/* Animaciones sutiles */
.animate-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}
.fade-up-active {
    opacity: 1 !important;
    transform: none !important;
}
#categorias{	
	max-width: 1280px;
	margin-left: auto;
	margin-right: auto;
}
/* ===== Elementos flotantes y asistentes ===== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    background-color: #20ba5a;
    transform: scale(1.1);
}

.whatsapp-float i {
    margin-top: 6px;
}

.help-dialog {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 250px;
    background-color: white;
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    display: none;
    animation: fadeInUp 0.5s;
}

.help-dialog-text {
    margin: 0 0 10px 0;
    font-size: 14px;
}

.help-dialog-close {
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
    font-size: 18px;
    color: #777;
    transition: color 0.2s;
}

.help-dialog-close:hover {
    color: #333;
}

.help-dialog-button {
    display: inline-block;
    background-color: #25d366;
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.3s;
}

.help-dialog-button:hover {
    background-color: #20ba5a;
}

.back-to-top {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background-color: #1976d2;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #1565c0;
    transform: translateX(-50%) scale(1.1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}