/* CSS Custom Properties */
:root {
    --primary-color: #2c5aa0;
    --secondary-color: #DBF3FA;
    --accent-color: #A3D5E8;
    --light-blue: #B8E3F0;
    --text-dark: #333;
    --text-medium: #444;
    --text-light: #555;
    --text-muted: #6c757d;
    --background-light: #f8f9fa;
    --border-light: #dee2e6;
    --success-color: #28a745;
    --shadow-light: 0 2px 5px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.3);
    --border-radius: 8px;
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.5s ease-in-out;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text-dark);
}

/* Skip Links for Accessibility */
.skip-link {
    position: absolute;
    top: -100px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

.skip-link:focus {
    top: 6px;
    opacity: 1;
    transform: translateY(0);
}

/* Header and Navigation */
.header {
    background-color: var(--secondary-color);
    color: var(--text-dark);
    padding: 1rem 0;
    box-shadow: var(--shadow-light);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.nav__brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__logo {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.nav__brand-text {
    display: flex;
    flex-direction: column;
}

.nav__title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
    line-height: 1.2;
}

.nav__subtitle {
    font-size: 0.9rem;
    color: var(--text-medium);
    margin: 0;
    line-height: 1.2;
}

.nav__list {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav__item {
    position: relative;
}

.nav__link {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color var(--transition-fast);
    display: block;
}

.nav__link:hover {
    background-color: var(--light-blue);
}

.nav__link--active {
    background-color: var(--accent-color);
    color: var(--primary-color);
    font-weight: 500;
}

.nav__link:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.nav__link:focus:not(:focus-visible) {
    outline: none;
}

/* Main Content */
.main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    display: flex;
    justify-content: center;
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn var(--transition-fast);
    width: 100%;
    max-width: 800px;
}

.tab-content--active {
    display: block;
}

.tab-content__title {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 600;
}

/* Content Sections */
.about-content {
    max-width: 800px;
}

.about-section {
    margin-bottom: 3rem;
}

.about-section__title {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

.about-section__text {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    color: var(--text-medium);
    text-align: justify;
}

.about-section p {
    margin-bottom: 1.8rem;
}

.intro-paragraph {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.highlight-text {
    background-color: var(--secondary-color);
    padding: 1.2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    font-weight: 500;
    margin-top: 2.5rem;
}

/* Services Content */
.services-content {
    max-width: 800px;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.services-list {
    margin: 2rem 0;
}

.service-item,
.contact-item {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-item {
    display: flex;
    align-items: flex-start;
    padding: 1rem;
}

.service-item:hover,
.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.service-item__checkmark {
    color: var(--success-color);
    font-size: 1.2rem;
    font-weight: bold;
    margin-right: 1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.service-item__content strong {
    color: var(--primary-color);
}

.closing-text {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
    color: var(--primary-color);
    font-weight: 500;
}

/* Contact Information */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
    margin-top: 2rem;
}


.contact-item__title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.contact-item__text {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.contact-item__link {
    color: var(--primary-color);
    text-decoration: none;
    transition: text-decoration var(--transition-fast);
}

.contact-item__link:hover {
    text-decoration: underline;
}

.contact-item__link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Location Section */
.location-section {
    margin-top: 2rem;
}

.location-section__title {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

.location-section__map-container {
    max-width: 600px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.location-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin: 2rem 0;
    color: var(--text-medium);
    text-align: justify;
}

.location-section__map {
    width: 100%;
    height: 450px;
    border: 0;
    display: block;
}

/* Image Carousel */
.carousel-container {
    position: relative;
    max-width: 600px;
    margin: 2rem auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
    max-height: 50vw;
    overflow: hidden;
}

/* Vertical carousel styling (Hausbesuche and Services) */
.about-section:last-child .carousel-container,
.services-carousel {
    max-width: 400px;
    width: 100%;
}

.about-section:last-child .carousel-wrapper,
.services-carousel .carousel-wrapper {
    height: 0;
    padding-bottom: 125%; /* 500/400 = 1.25 = 125% for 0.8 aspect ratio */
    position: relative;
}

.about-section:last-child .carousel-slide,
.services-carousel .carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.about-section:last-child .carousel-slide__image,
.services-carousel .carousel-slide__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 1;
}

.carousel-slide--active {
    opacity: 1;
    z-index: 2;
}

.carousel-slide__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 18px;
    color: var(--primary-color);
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-nav:hover {
    background-color: rgba(255, 255, 255, 1);
}

.carousel-nav:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.carousel-nav--prev {
    left: 10px;
}

.carousel-nav--next {
    right: 10px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 15px 0;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-light);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform 0.2s ease;
}

.carousel-dot:hover {
    transform: scale(1.1);
}

.carousel-dot:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.carousel-dot--active {
    background-color: var(--primary-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeInModal var(--transition-fast);
}

.modal--active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__content {
    background-color: white;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-dark);
    position: relative;
}

.modal__header {
    padding: 1.5rem 2rem;
    background-color: var(--secondary-color);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--accent-color);
}

.modal__title {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.8rem;
}

.modal__close {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    line-height: 1;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    transition: background-color var(--transition-fast);
    border: none;
    background: none;
}

.modal__close:hover {
    background-color: var(--accent-color);
}

.modal__close:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.modal__body {
    padding: 2rem;
}

/* Impressum Sections */
.impressum-section {
    margin-bottom: 2rem;
}

.impressum-section__title {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

.impressum-section__subtitle {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin: 1.5rem 0 1rem 0;
}

.impressum-section__text {
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-medium);
}

/* Footer */
.footer {
    background-color: var(--background-light);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-light);
    margin-top: auto;
}

.footer__content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer__link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: text-decoration var(--transition-fast);
}

.footer__link:hover {
    text-decoration: underline;
}

.footer__link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInModal {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .nav__brand {
        justify-content: center;
    }
    
    .nav__logo {
        height: 50px;
    }
    
    .nav__title {
        font-size: 1.3rem;
    }
    
    .nav__subtitle {
        font-size: 0.85rem;
    }

    .nav__list {
        flex-direction: column;
        gap: 0.5rem;
    }

    .main {
        padding: 1rem;
    }

    .tab-content__title {
        font-size: 2rem;
    }

    .about-section__title {
        font-size: 1.5rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .carousel-container {
        max-width: 100%;
        margin: 1.5rem 0;
    }

    .carousel-wrapper {
        height: 250px;
    }

    /* Vertical carousels on mobile */
    .about-section:last-child .carousel-container,
    .services-carousel {
        max-width: 280px;
        margin-left: auto;
        margin-right: auto;
    }

    .carousel-nav {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }

    .carousel-nav--prev {
        left: 5px;
    }

    .carousel-nav--next {
        right: 5px;
    }

    .modal__content {
        width: 95%;
        margin: 1rem;
    }

    .modal__header {
        padding: 1rem 1.5rem;
    }

    .modal__body {
        padding: 1.5rem;
    }

    .location-section__map {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 0 1rem;
    }

    .main {
        padding: 0.5rem;
    }

    .tab-content__title {
        font-size: 1.8rem;
    }

    .about-section__text,
    .intro-text {
        font-size: 1rem;
    }

    .service-item,
    .contact-item {
        padding: 1rem;
    }

    .carousel-wrapper {
        height: 200px;
    }

    /* Vertical carousels on small mobile */
    .about-section:last-child .carousel-container,
    .services-carousel {
        max-width: 240px;
        margin-left: auto;
        margin-right: auto;
    }

    .highlight-text,
    .closing-text {
        padding: 1rem;
    }
}

/* Print Styles */
@media print {

    .nav,
    .carousel-nav,
    .carousel-dots,
    .modal {
        display: none !important;
    }

    .main {
        max-width: none;
        padding: 0;
    }

    .tab-content {
        display: block !important;
        page-break-after: always;
    }

    .tab-content:last-child {
        page-break-after: auto;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #f0f8ff;
        --text-dark: #000000;
        --background-light: #ffffff;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible Support */
@supports selector(:focus-visible) {

    .nav__link:focus:not(:focus-visible),
    .carousel-nav:focus:not(:focus-visible),
    .carousel-dot:focus:not(:focus-visible),
    .modal__close:focus:not(:focus-visible),
    .contact-item__link:focus:not(:focus-visible),
    .footer__link:focus:not(:focus-visible) {
        outline: none;
    }
}