@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-LightItalic.ttf') format('truetype');
    font-weight: 300;
    font-style: italic;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-Italic.ttf') format('truetype');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-BoldItalic.ttf') format('truetype');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-Black.ttf') format('truetype');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Lato';
    src: url('assets/font/Lato-BlackItalic.ttf') format('truetype');
    font-weight: 900;
    font-style: italic;
    font-display: swap;
}

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

.lang-en { display: none; }
.lang-de { display: block; }

:root {
    --color-primary: #4D3A4D;
    --color-secondary: #BE5CA9;
    --color-accent: #D59CC5;
    --color-accent-blue: #BE5CA9;
    --main-content-width: 1400px;
}

body {
    font-family: 'Lato', sans-serif;
    background: #D8D2F9;
    color: #090420;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Decorative Square */
.decorative-square {
    position: fixed;
    width: 500px;
    height: 500px;
    background-color: rgba(100, 73, 233, 0.15);
    border-radius: 80px;
    transform: rotate(55deg);
    left: -280px;
    top: 50%;
    margin-top: -250px;
    z-index: 0;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.decorative-square img {
    transform: rotate(-45deg);
    width: 50%;
    height: 50%;
    object-fit: contain;
    opacity: 0.8;
    margin-left: 120px;
    margin-bottom: 80px;
}

.square-image {
    display: none;
    transform: rotate(-45deg) !important;
    width: 150% !important;
    height: 150% !important;
    object-fit: cover !important;
    opacity: 0;
    transition: opacity 0.5s ease !important;
    margin-left: 250px !important;
    margin-bottom: 100px !important;
    border-radius: 0 !important;
}

/* Decorative Square Right */
.decorative-square-right {
    position: fixed;
    width: 250px;
    height: 250px;
    background-color: rgba(100, 73, 233, 0.1);
    border-radius: 40px;
    transform: rotate(45deg);
    right: -125px;
    top: 55%;
    z-index: 0;
    pointer-events: none;
}

/* Header Styles */
header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1400px;
    background-color: #6449E9;
    z-index: 1000;
    transition: all 0.3s ease;
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.5' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.15'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.9;
    border-radius: 20px;
    z-index: 1;
}

header.scrolled {
    background-color: #6449E9;
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 40px rgba(0, 0, 0, 0.5);
}
.header-content {
    padding: 0.75rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 2;
}

.logo {
    text-decoration: none;
    display: block;
    cursor: pointer;
    background-color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.logo:hover {
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.logo img {
    height: 45px;
    width: auto;
    display: block;
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
}

/* Navigation Styles */
.nav-menu {
    display: flex;
    gap: clamp(0.25rem, 1.5vw, 3.5rem);
    align-items: center;
    flex-wrap: nowrap;
    flex-shrink: 1;
    min-width: 0;
}

.nav-button {
    color: #EADADA;
    text-decoration: none;
    font-size: clamp(0.8rem, 1.2vw, 1.25rem);
    font-weight: 500;
    padding: 0.6rem clamp(0.4rem, 1vw, 2rem);
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    transition: left 0.6s ease;
    z-index: 1;
    pointer-events: none;
}

.nav-button:hover::before {
    left: 150%;
}

.nav-button:hover {
    color: #EADADA;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.nav-button.active {
    font-weight: bold;
    font-size: clamp(1rem, 1.55vw, 1.4rem);
    background: none;
    transform: scale(1.05);
}

.nav-button.active::before {
    left: -150%;
}

/* Main Content */
main {
    padding-top: 120px;
    min-height: 100vh;
    background: transparent;
    position: relative;
    z-index: 1;
}

.content-wrapper {
    max-width: var(--main-content-width);
    margin: 0 auto;
}

.section {
    display: none;
    max-width: var(--main-content-width);
    margin: 0 auto;
    padding: 1rem 2rem 3rem 2rem;
    min-height: calc(100vh - 120px);
    animation: fadeIn 0.5s ease-in;
}

.section.active {
    display: block;
}

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

@keyframes jumpAnimation {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.optionearner-button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(100, 73, 233, 0.6);
    animation: none;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 0.5rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    color: #090420;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #090420;
    margin-bottom: 2rem;
}

.hero-content {
    max-width: var(--main-content-width);
    margin: 0 auto;
}

.hero-content > p {
    font-size: 1.2rem;
    color: #090420;
    line-height: 1.8;
    margin-bottom: 3rem;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.feature-item {
    background-color: #B1A4F4;
    padding: 1rem 1.2rem;
    border-radius: 15px;
    transition: all 0.3s ease;
    text-align: center;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.feature-item h3 {
    font-size: 1.4rem;
    color: #090420;
    margin-bottom: 0.25rem;
}

.feature-item h4 {
    font-size: 1.15rem !important;
    font-weight: bold;
    margin: 0;
}

.feature-item p {
    color: #090420;
    font-size: 1rem;
}

/* Section Headers */
.section h2 {
    font-size: 2.5rem;
    color: #090420;
    margin-bottom: 1.5rem;
    text-align: center;
}

.section h2.section-title {
    text-align: left;
}

.section > p {
    font-size: 1.2rem;
    color: #090420;
    text-align: center;
    margin-bottom: 3rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: #B1A4F4;
    padding: 2.5rem;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
}

.service-card h3 {
    font-size: 1.8rem;
    color: #090420;
    margin-bottom: 1rem;
}

.service-card p {
    color: #090420;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* About Content */
.about-content {
    max-width: 800px;
    margin: 2rem auto;
    text-align: center;
}

.about-content p {
    font-size: 1.2rem;
    color: #090420;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Contact Info */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    background-color: #B1A4F4;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
}

.contact-item h3 {
    font-size: 1.5rem;
    color: #090420;
    margin-bottom: 1rem;
}

.contact-item p {
    color: #090420;
    font-size: 1.1rem;
}

/* Impressum & Datenschutz text color override */
#impressum *,
#datenschutz * {
    color: #090420 !important;
}

/* Impressum & Datenschutz heading and text size */
#impressum h2,
#datenschutz h2 {
    font-size: 1.5rem;
}

/* Contact Section Specific Styles */
#contact.section {
    min-height: auto;
    padding: 0.5rem 2rem 0.5rem 2rem;
}

#contact.section h2 {
    margin-bottom: 0.3rem;
    font-size: 2rem;
}

#contact.section > p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

#contact .contact-info {
    margin-top: 1rem;
    gap: 1rem;
}

#contact .contact-item {
    padding: 1rem;
}

#contact .contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

#contact .contact-item p {
    font-size: 1rem;
}

/* Footer Styles */
footer {
    background: transparent;
    margin-top: 4rem;
}

body:has(#contact.section.active) main {
    min-height: unset;
}

body:has(#contact.section.active) footer {
    margin-top: 0;
}

body:has(#contact.section.active) .footer-content {
    padding: 1.5rem 2rem;
}

body:has(#contact.section.active) .footer-content > div:first-child {
    margin-bottom: 1.5rem;
}

body:has(#contact.section.active) .footer-content > div:first-child > div:nth-child(2) {
    display: none;
}

body:has(#contact.section.active) .footer-content > div:first-child > div:nth-child(3) {
    grid-column: 3;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    box-sizing: border-box;
    width: 100%;
}

.footer-content p {
    color: #090420;
    font-size: 1rem;
}

.footer-email-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #B1A4F4;
    color: #ffffff;
    text-decoration: none;
    border-radius: 10px;
    font-weight: bold;
    font-size: 1rem;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    box-shadow: 0 4px 15px rgba(177, 164, 244, 0.3);
    transform: scale(1);
}

.footer-email-button:hover {
    transform: scale(1.06);
    box-shadow: 0 8px 30px rgba(177, 164, 244, 0.75), 0 0 18px rgba(177, 164, 244, 0.4);
}

.footer-link {
    color: #8B77EE;
    text-decoration: none;
    margin: 0 0.3rem;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: #6449E9;
    text-decoration: underline;
}

/* Language Toggle Button */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.25);
    flex-shrink: 0;
    white-space: nowrap;
}

.lang-btn {
    background: none;
    border: none;
    color: rgba(234, 218, 218, 0.65);
    font-family: 'Lato', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.35rem 0.7rem;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.05em;
}

.lang-btn:hover {
    color: #EADADA;
    background: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.lang-divider {
    width: 1px;
    height: 16px;
    background: rgba(234, 218, 218, 0.3);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #EADADA;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Responsive Grid Layouts */
.responsive-grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.responsive-grid-1-1 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.responsive-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

/* Content Boxes and Text Styles */
.content-box {
    background-color: rgba(177, 164, 244, 0.2);
    padding: 2rem;
    border-radius: 15px;
    text-align: left;
}

.section-title {
    text-align: left;
    margin-bottom: 1rem;
    font-size: clamp(1.4rem, 3vw, 2rem);
}

.subsection-title {
    font-size: clamp(1.2rem, 3.5vw, 1.6rem);
    margin-bottom: 1rem;
    text-align: center;
}

.text-large {
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    line-height: 1.8;
}

.text-intro {
    font-size: clamp(1.05rem, 3vw, 1.3rem);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.image-container {
    text-align: center;
}

.responsive-image {
    max-width: 60%;
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.image-caption {
    color: grey;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    margin-top: 0.5rem;
    font-style: italic;
}

.timeline-year {
    font-weight: bold;
    color: #6449E9;
    font-size: clamp(1.1rem, 3vw, 1.3rem);
}

.timeline-text {
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    margin-top: 0.5rem;
}

.timeline-footer {
    font-size: clamp(0.85rem, 2vw, 0.95rem);
    font-style: italic;
    margin-top: 1.5rem;
    text-align: center;
}

.optionearner-button {
    display: inline-block;
    background: white;
    padding: 1.5rem 2rem;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(100, 73, 233, 0.4);
    transition: all 0.3s ease;
    animation: jumpAnimation 2s ease-in-out infinite;
}

.optionearner-logo {
    max-width: 180px;
    width: 100%;
    display: block;
}

/* Responsive Design */
/* Tablet devices */
@media (max-width: 1024px) {
    :root {
        --main-content-width: 95%;
    }

    .responsive-grid-2-1,
    .responsive-grid-1-1 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .responsive-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .responsive-image {
        max-width: 70%;
    }

    .decorative-square {
        width: 350px;
        height: 350px;
        left: -220px;
    }

    .decorative-square-right {
        width: 200px;
        height: 200px;
        right: -100px;
    }
}

/* Mobile devices */
@media (max-width: 768px) {
    header {
        width: 95%;
        top: 10px;
        border-radius: 15px;
    }

    .header-content {
        padding: 0.75rem 1rem;
        justify-content: space-between;
        gap: 0.5rem;
        overflow: visible;
    }

    .hamburger {
        display: flex;
        order: 3;
    }

    .lang-toggle {
        order: 2;
        margin-left: auto;
    }

    .nav-menu {
        order: 4;
    }

    .lang-btn {
        font-size: 0.78rem;
        padding: 0.3rem 0.55rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 1400px;
        background-color: #6449E9;
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        border-radius: 15px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-button {
        font-size: 1rem;
        padding: 1rem 1.5rem;
        width: 100%;
        text-align: center;
        border-radius: 0;
    }

    .nav-button:not(:last-child) {
        border-bottom: 1px solid rgba(234, 218, 218, 0.2);
    }

    .logo img {
        height: 40px;
    }

    .hero h1 {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }

    .hero-subtitle {
        font-size: clamp(1rem, 4vw, 1.3rem);
    }

    .section h2 {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }

    .hero-features,
    .services-grid,
    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .responsive-grid-2-1,
    .responsive-grid-1-1 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .responsive-grid-3 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .responsive-image {
        max-width: 90%;
    }

    .content-box {
        padding: 1.5rem;
    }

    main {
        padding-top: 100px;
    }

    .section {
        padding: 1rem 1rem 2rem 1rem;
    }

    .decorative-square {
        width: 250px;
        height: 250px;
        left: -150px;
    }

    .decorative-square-right {
        width: 150px;
        height: 150px;
        right: -75px;
    }

    .feature-item {
        padding: 1.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .contact-item {
        padding: 1.5rem;
    }

    .optionearner-button {
        padding: 1rem 1.5rem;
    }

    .optionearner-logo {
        max-width: 140px;
    }

    /* Footer mobile */
    .footer-content {
        padding: 2rem 1rem;
    }

    .footer-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: 1.5rem !important;
        align-items: stretch !important;
        margin-bottom: 1.5rem !important;
    }

    .footer-grid > div {
        text-align: center !important;
    }

    .footer-email-button {
        word-break: break-all;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .logo img {
        height: 35px;
    }

    .content-box {
        padding: 1rem;
    }

    .hero-features {
        gap: 1rem;
    }

    .decorative-square {
        width: 200px;
        height: 200px;
        left: -120px;
    }

    .decorative-square-right {
        display: none;
    }

    .optionearner-logo {
        max-width: 120px;
    }
}