/* ==========================================================================
   Open Sans Font - Lokale Einbindung
   ========================================================================== */

@font-face {
	font-family: 'Open Sans';
	font-style: normal;
	font-weight: 400;
	font-display: swap;
	src: url('fonts/OpenSans-Regular.woff2') format('woff2');
}

@font-face {
	font-family: 'Open Sans';
	font-style: normal;
	font-weight: 600;
	font-display: swap;
	src: url('fonts/OpenSans-SemiBold.woff2') format('woff2');
}

@font-face {
	font-family: 'Open Sans';
	font-style: normal;
	font-weight: 700;
	font-display: swap;
	src: url('fonts/OpenSans-Bold.woff2') format('woff2');
}

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

:root {
	--color-primary: #334155;
	--color-white: #ffffff;
	--color-text: #334155;
	--color-text-light: #64748b;
	--color-link: #334155;
	--color-link-hover: #1e293b;
	--font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
	--shadow-card: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
	--shadow-button: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	--transition: all 0.3s ease;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	font-size: 16px;
	-webkit-text-size-adjust: 100%;
}

body {
	font-family: var(--font-family);
	font-weight: 400;
	line-height: 1.6;
	color: var(--color-text);
	background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding: 2rem;
}

/* ==========================================================================
   Card Container
   ========================================================================== */

.card-container {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2rem;
	width: 100%;
	max-width: 400px;
}

/* ==========================================================================
   Business Card
   ========================================================================== */

.business-card {
	background-color: var(--color-white);
	border-radius: 1rem;
	box-shadow: var(--shadow-card);
	padding: 3rem 2.5rem;
	text-align: center;
	width: 100%;
	transition: var(--transition);
}

.business-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.3);
}

/* Logo */
.card-logo {
	margin-bottom: 2rem;
}

.card-logo img {
	max-width: 320px;
	width: 100%;
	height: auto;
	display: block;
	margin: 0 auto;
}

/* Card Content */
.card-content {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.card-name {
	font-size: 1.75rem;
	font-weight: 700;
	color: var(--color-text);
	margin-bottom: 0.25rem;
}

.card-title {
	font-size: 1.125rem;
	font-weight: 600;
	color: var(--color-text-light);
	margin-bottom: 1rem;
}

.card-email,
.card-phone,
.card-website {
	font-size: 1rem;
	color: var(--color-text);
}

.card-content a {
	color: var(--color-link);
	text-decoration: none;
	transition: var(--transition);
}

.card-content a:hover {
	color: var(--color-link-hover);
	text-decoration: underline;
}

/* ==========================================================================
   Footer Buttons
   ========================================================================== */

.card-footer {
	display: flex;
	gap: 1rem;
	flex-wrap: wrap;
	justify-content: center;
}

.btn {
	font-family: var(--font-family);
	font-size: 0.8125rem;
	font-weight: 400;
	color: rgba(255, 255, 255, 0.7);
	background-color: transparent;
	border: 1px solid rgba(255, 255, 255, 0.3);
	border-radius: 0.5rem;
	padding: 0.625rem 1.25rem;
	cursor: pointer;
	transition: var(--transition);
}

.btn:hover {
	color: var(--color-white);
	border-color: rgba(255, 255, 255, 0.6);
	background-color: rgba(255, 255, 255, 0.1);
}

.btn:focus {
	outline: none;
	box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1000;
	opacity: 0;
	visibility: hidden;
	transition: var(--transition);
}

.modal[aria-hidden="false"] {
	opacity: 1;
	visibility: visible;
}

.modal-overlay {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.6);
	backdrop-filter: blur(4px);
}

.modal-content {
	position: relative;
	background-color: var(--color-white);
	border-radius: 1rem;
	box-shadow: var(--shadow-card);
	width: 90%;
	max-width: 600px;
	max-height: 80vh;
	overflow-y: auto;
	padding: 2.5rem;
	transform: scale(0.9) translateY(20px);
	transition: var(--transition);
}

.modal[aria-hidden="false"] .modal-content {
	transform: scale(1) translateY(0);
}

.modal-close {
	position: absolute;
	top: 1rem;
	right: 1rem;
	width: 2.5rem;
	height: 2.5rem;
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--color-text-light);
	background: none;
	border: none;
	border-radius: 50%;
	cursor: pointer;
	transition: var(--transition);
	display: flex;
	align-items: center;
	justify-content: center;
}

.modal-close:hover {
	color: var(--color-text);
	background-color: rgba(0, 0, 0, 0.05);
}

.modal-close:focus {
	outline: none;
	box-shadow: 0 0 0 3px rgba(51, 65, 85, 0.3);
}

/* Modal Typography */
.modal-content h2 {
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--color-text);
	margin-bottom: 1.5rem;
	padding-right: 2rem;
}

.modal-body h3 {
	font-size: 1.125rem;
	font-weight: 700;
	color: var(--color-text);
	margin-top: 1.5rem;
	margin-bottom: 0.75rem;
}

.modal-body h3:first-child {
	margin-top: 0;
}

.modal-body h4 {
	font-size: 1rem;
	font-weight: 600;
	color: var(--color-text);
	margin-top: 1rem;
	margin-bottom: 0.5rem;
}

.modal-body p {
	font-size: 0.9375rem;
	color: var(--color-text);
	margin-bottom: 1rem;
	line-height: 1.7;
}

.modal-body a {
	color: var(--color-link);
	text-decoration: underline;
	transition: var(--transition);
}

.modal-body a:hover {
	color: var(--color-link-hover);
}

/* ==========================================================================
   Scrollbar Styling
   ========================================================================== */

.modal-content::-webkit-scrollbar {
	width: 8px;
}

.modal-content::-webkit-scrollbar-track {
	background: #f1f5f9;
	border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb {
	background: #cbd5e1;
	border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
	background: #94a3b8;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 480px) {
	body {
		padding: 1.5rem;
	}

	.business-card {
		padding: 2rem 1.5rem;
	}

	.card-name {
		font-size: 1.5rem;
	}

	.card-title {
		font-size: 1rem;
	}

	.card-email,
	.card-phone,
	.card-website {
		font-size: 0.9375rem;
	}

	.card-footer {
		flex-direction: column;
		width: 100%;
	}

	.btn {
		width: 100%;
	}

	.modal-content {
		padding: 2rem 1.5rem;
		max-height: 85vh;
	}

	.modal-content h2 {
		font-size: 1.25rem;
	}

	.modal-body h3 {
		font-size: 1rem;
	}

	.modal-body p {
		font-size: 0.875rem;
	}
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}

/* Focus visible for keyboard navigation */
.btn:focus-visible,
.modal-close:focus-visible {
	outline: 2px solid var(--color-white);
	outline-offset: 2px;
}

.modal-close:focus-visible {
	outline-color: var(--color-primary);
}