/* ===================================
   MAIN CSS - ESTILOS BASE
   ================================= */

/* Reset & Base */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	/* Colores Kutxabank */
	--color-rojo-kutxabank: #E23636;
	--color-blanco: #FFFFFF;
	--color-negro: #000000;
	--color-gris-claro: #F5F5F5;
	--color-gris: #999999;

	/* Colores personajes */
	--color-olentzero: #1F7A8C;
	--color-mari-domingi: #6C63AC;
	--color-tio-nadal: #E76F51;
	--color-pastor: #588157;

	/* Tipografía */
	--font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
	--font-serif: 'Playfair Display', Georgia, serif;

	/* Espaciado */
	--spacing-xs: 0.5rem;
	--spacing-sm: 1rem;
	--spacing-md: 1.5rem;
	--spacing-lg: 2rem;
	--spacing-xl: 3rem;
	--spacing-xxl: 4rem;

	/* Sombras */
	--shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
	--shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
	--shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
	--shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);

	/* Transiciones */
	--transition-fast: 0.2s ease;
	--transition-normal: 0.3s ease;
	--transition-slow: 0.5s ease;

	/* Border radius */
	--radius-sm: 8px;
	--radius-md: 12px;
	--radius-lg: 16px;
	--radius-xl: 24px;
}

html {
	font-size: 16px;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	scroll-behavior: smooth;
	height: 100%;
}

body {
	font-family: var(--font-sans);
	color: var(--color-negro);
	background-color: var(--color-blanco);
	line-height: 1.2;
	overflow-x: hidden;
	min-height: 100%;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-serif);
	line-height: 1.2;
	font-weight: 700;
}

h1 {
	font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
	font-size: clamp(1.5rem, 4vw, 3rem);
}

h3 {
	font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
	font-size: 1rem;
	line-height: 1.6;
}

a {
	text-decoration: none;
	color: inherit;
	transition: var(--transition-fast);
}

/* Botones */
.btn {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 1rem 2rem;
	border: none;
	border-radius: var(--radius-xl);
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: var(--transition-normal);
	text-align: center;
	white-space: nowrap;
}

.btn-primary {
	background-color: var(--color-negro);
	color: var(--color-blanco);
}

.btn-primary:hover {
	background-color: var(--color-rojo-kutxabank);
	transform: translateY(-2px);
	box-shadow: var(--shadow-lg);
}

.btn-secondary {
	background-color: transparent;
	color: var(--color-negro);
	border: 2px solid var(--color-negro);
}

.btn-secondary:hover {
	background-color: var(--color-negro);
	color: var(--color-blanco);
}

.btn svg {
	width: 20px;
	height: 20px;
}

/* Container */
.container {
	width: 100%;
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 var(--spacing-lg);
}

/* Selector de idiomas */
.lang-selector {
	position: fixed;
	top: var(--spacing-md);
	left: 50%;
	transform: translateX(-50%);
	z-index: 1000;
	display: flex;
	gap: 0.5rem;
	background-color: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(10px);
	padding: 0.75rem 1.5rem;
	border-radius: var(--radius-xl);
	box-shadow: var(--shadow-md);
	font-size: 0.875rem;
	font-weight: 600;
}

.lang-link {
	color: var(--color-gris);
	transition: var(--transition-fast);
}

.lang-link:hover,
.lang-link.active {
	color: var(--color-rojo-kutxabank);
}

/* Logo Kutxabank */
.logo-kutxabank {
	position: fixed;
	top: var(--spacing-md);
	left: var(--spacing-lg);
	z-index: 1000;
	width: 120px;
}

/* Back link */
.back-link {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 1rem;
	color: var(--color-blanco);
	opacity: 0.8;
	transition: var(--transition-fast);
}

.back-link:hover {
	opacity: 1;
}

/* Footer */
.footer {
	padding: var(--spacing-xl) 0;
	background-color: var(--color-gris-claro);
	text-align: center;
}

.footer-content {
	max-width: 800px;
	margin: 0 auto;
}

.footer-logo {
	width: 120px;
	margin-bottom: var(--spacing-md);
}

.footer-disclaimer {
	font-size: 0.75rem;
	color: var(--color-gris);
	line-height: 1.5;
}

/* Animaciones */
@keyframes fadeIn {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

@keyframes slideUp {
	from {
		transform: translateY(50px);
		opacity: 0;
	}
	to {
		transform: translateY(0);
		opacity: 1;
	}
}

@keyframes slideDown {
	from {
		transform: translateY(-50px);
		opacity: 0;
	}
	to {
		transform: translateY(0);
		opacity: 1;
	}
}

@keyframes float {
	0%, 100% {
		transform: translateY(0px);
	}
	50% {
		transform: translateY(-20px);
	}
}

@keyframes rotate3d {
	0% {
		transform: rotateY(0deg) rotateX(0deg);
	}
	100% {
		transform: rotateY(360deg) rotateX(360deg);
	}
}

/* Responsive */
@media (max-width: 768px) {
	:root {
		--spacing-lg: 1rem;
		--spacing-xl: 2rem;
		--spacing-xxl: 3rem;
	}

	.lang-selector {
		top: var(--spacing-sm);
		padding: 0.5rem 1rem;
		font-size: 0.75rem;
	}

	.logo-kutxabank {
		width: 80px;
		top: var(--spacing-sm);
		left: var(--spacing-sm);
	}

	.btn {
		padding: 0.875rem 1.5rem;
		font-size: 0.9375rem;
	}
}

@media (max-width: 480px) {
	html {
		font-size: 14px;
	}

	.lang-selector {
		gap: 0.25rem;
		padding: 0.5rem 0.75rem;
	}
}

/* Loading */
.loading {
	display: inline-block;
	width: 20px;
	height: 20px;
	border: 3px solid rgba(255, 255, 255, 0.3);
	border-radius: 50%;
	border-top-color: var(--color-blanco);
	animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

/* Utilidades */
.text-center {
	text-align: center;
}

.hidden {
	display: none !important;
}

.visible {
	display: block !important;
}

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}