/* Grundlegende Stile & Typografie */
body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    color: #333;
    background-color: #fff;
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #9ff41f;
}
img {
    max-width: 100%;
    height: auto;
}
h1, h2, h3 {
    font-family: 'Raleway', sans-serif;
    font-weight: 700;
}
sup {
    font-size: 0.6em;
    vertical-align: super;
}

/* Header & Navigation */
.site-header {
    background-color: #95c52c;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo img {
    max-height: 50px;
}
.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}
.main-navigation ul li {
    position: relative;
    margin-left: 25px;
}
.main-navigation ul li a {
    font-family: 'Raleway', sans-serif;
    text-transform: lowercase;
    font-weight: 700;
    padding-bottom: 5px;
}
.main-navigation .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    padding-top: 10px;
    left: 0;
    background-color: #7fae24;
    list-style: none;
    padding: 10px;
    margin: 0;
    border: 1px solid #eee;
    min-width: 150px;
    z-index: 100;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.main-navigation li:hover .sub-menu {
    display: block;
}
.main-navigation .sub-menu li {
    margin: 0;
}
.main-navigation .sub-menu a {
    display: block;
    padding: 5px 10px;
}
.header-extras {
    display: flex;
    align-items: center;
}
.mail-icon img {
    height: 24px;
    margin-right: 15px;
}

/* Sprachumschalter */
.language-switcher {
    font-family: 'Raleway', sans-serif;
    font-weight: 700;
    font-size: 0.9em;
    text-transform: lowercase;
}
.language-switcher a {
    margin: 0 5px;
    color: #fff;
}
.language-switcher a:hover,
.language-switcher a.active {
    color: #333;
}

/* Hero-Sektion (Banner) */
.hero img {
    width: 100%;
    display: block;
}

/* Inhalts-Sektionen */
.intro-section {
    padding: 60px 20px;
    text-align: center;
}
.intro-section h2 {
    font-size: 2em;
    margin-bottom: 20px;
}
.intro-section p {
    font-family: 'Raleway', sans-serif;
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto;
}

/* Grid-Layout für die Kacheln */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
}
.grid-item {
    position: relative;
    overflow: hidden;
}
.grid-item img {
    display: block;
    width: 100%;
    transition: transform 0.3s ease;
}
.grid-item:hover img {
    transform: scale(1.1);
}
.grid-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(159, 244, 31, 0.85);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.grid-item:hover .overlay {
    opacity: 1;
}
.grid-item .overlay h3 {
    color: #333;
    font-size: 1.5em;
    margin: 0;
    text-transform: lowercase;
}

/* Stile für die interaktiven Kachel-Gruppen */
.portfolio-group {
    display: none; /* Gruppen standardmäßig ausblenden */
    animation: fadeIn 0.5s; /* Sanfte Einblend-Animation */
}

/* Eine Klasse, um eine Gruppe sichtbar zu machen */
.portfolio-group.visible {
    display: block;
}

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

/* Kontaktseite */
.contact-container { display: flex; flex-wrap: wrap; gap: 40px; padding: 40px 20px; }
.contact-info, .contact-form { flex: 1; min-width: 300px; }
.contact-info h3 { margin-top: 0; }
.contact-form form { display: flex; flex-direction: column; gap: 15px; }
.contact-form input, .contact-form textarea { padding: 10px; border: 1px solid #ccc; font-family: 'Open Sans', sans-serif; }
.contact-form button { background-color: #9ff41f; border: none; padding: 15px; font-weight: bold; cursor: pointer; transition: background-color 0.3s; }
.contact-form button:hover { background-color: #88d80c; }

/* Footer */
.site-footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid #eee;
    margin-top: 40px;
}.content-section {
    text-align: center;
    color: #666;
}
.content-section h3 {
    color: #555;
    text-transform: lowercase;
}
.quote {
    font-style: italic;
    text-align: center;
    font-size: 1.1em;
    color: #555;
    max-width: 800px;
    margin: 30px auto;
}
.quote-author {
    text-align: right;
    color: #888;
    max-width: 800px;
    margin: 0 auto 40px;
}
.direction {
    border-top: 1px solid #ddd;
    padding-top: 40px;
    margin-top: 50px;
}
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.three-col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    align-items: start;
}
@media (max-width: 768px) {
    .two-col, .three-col { grid-template-columns: 1fr; }
}

.site-header .main-navigation > ul > li:hover > a {
    color: #ffffff;
}

.site-header .main-navigation ul.sub-menu li a:hover {
    color: #ffffff;
}

.site-header .language-switcher a.active {
    color: #333333;
    opacity: 1;
}
        .client-filters { text-align: center; padding: 40px 20px 20px; }
        .client-filter-btn { display: inline-block; margin: 0 15px; cursor: pointer; font-family: 'Raleway', sans-serif; font-size: 1.6em; font-weight: 700; color: #95c52c; transition: opacity 0.3s ease; opacity: 0.6; background: none; border: none; text-transform: lowercase; }
        .client-filter-btn.active, .client-filter-btn:hover { opacity: 1; }
        .client-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 25px; max-width: 1100px; margin: 0 auto; padding: 20px; align-items: center; }
        .client-logo { display: flex; align-items: center; justify-content: center; }
        .client-logo img { max-width: 130px; height: auto; }
        .client-logo.hidden { display: none; }

.three-col-content { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; padding: 40px 20px; text-align: center; color: #666; }
.three-col-content h3 { font-family: 'Raleway', sans-serif; color: #555; text-transform: lowercase; margin-bottom: 20px; }
.three-col-content p { font-family: 'Open Sans', sans-serif; line-height: 1.7; margin: 0; }
@media (max-width: 768px) { .three-col-content { grid-template-columns: 1fr; } }

.three-col-content { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; padding: 40px 20px; text-align: center; color: #666; }
.three-col-content h3 { font-family: 'Raleway', sans-serif; color: #555; text-transform: lowercase; margin-bottom: 20px; }
.three-col-content p { font-family: 'Open Sans', sans-serif; line-height: 1.7; margin: 0; }
@media (max-width: 768px) { .three-col-content { grid-template-columns: 1fr; } }

.two-col-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; padding: 40px 20px; text-align: center; color: #666; }
.two-col-content h3 { font-family: 'Raleway', sans-serif; color: #555; text-transform: lowercase; margin-bottom: 20px; }
.two-col-content p { font-family: 'Open Sans', sans-serif; line-height: 1.7; margin: 0; }
@media (max-width: 768px) { .two-col-content { grid-template-columns: 1fr; } }

.contact-info h3 { margin-top: 45px; }
.contact-info h3:first-child { margin-top: 0; }
.contact-info iframe { margin-bottom: 20px; }

/* Mobile header */
.nav-toggle { position: absolute; left: -9999px; opacity: 0; }
.nav-toggle-label { display: none; }
img { max-width: 100%; height: auto; }

@media (max-width: 900px) {
    .logo img { max-height: 36px; }
    .mail-icon img { height: 20px; margin-right: 8px; }
    .language-switcher { font-size: 0.8em; white-space: nowrap; }
    .language-switcher a { margin: 0 3px; }
    .header-extras { margin-left: auto; }
    .nav-toggle-label { display: block; order: 10; position: relative; width: 28px; height: 22px; margin-left: 14px; cursor: pointer; flex-shrink: 0; }
    .nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after { content: ''; display: block; position: absolute; left: 0; width: 28px; height: 3px; background: #fff; border-radius: 2px; transition: transform .2s ease, background .2s ease; }
    .nav-toggle-label span { top: 10px; }
    .nav-toggle-label span::before { top: -8px; }
    .nav-toggle-label span::after { top: 8px; }
    .nav-toggle:checked + .nav-toggle-label span { background: transparent; }
    .nav-toggle:checked + .nav-toggle-label span::before { transform: translateY(8px) rotate(45deg); }
    .nav-toggle:checked + .nav-toggle-label span::after { transform: translateY(-8px) rotate(-45deg); }
    .main-navigation { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #95c52c; padding: 10px 24px 20px; box-shadow: 0 8px 16px rgba(0,0,0,.15); z-index: 999; }
    .nav-toggle:checked ~ .main-navigation { display: block; }
    .main-navigation ul { flex-direction: column; }
    .main-navigation ul li { margin: 0; padding: 8px 0; }
    .main-navigation ul li a { font-size: 1.15em; }
    .main-navigation .sub-menu { display: block; position: static; background: none; border: 0; box-shadow: none; padding: 6px 0 0 16px; min-width: 0; }
    .main-navigation .sub-menu li { padding: 5px 0; }
    .main-navigation .sub-menu a { padding: 0; font-weight: 400; }
    body .filter-btn { font-size: 1.4em; margin: 0 10px; }
    body .client-filter-btn { font-size: 1.1em; margin: 0 8px; }
}

/* Original nav look (desktop) */
:root { --lime-nav-font: serif; }
@media (min-width: 901px) {
    .site-header { padding-top: 0; padding-bottom: 0; }
    .site-header .container { min-height: 75px; }
    .site-header .main-navigation { align-self: stretch; }
    .site-header .main-navigation > ul { height: 100%; }
    .site-header .main-navigation > ul > li { display: flex; align-items: center; margin-left: 0; padding: 0 10px; }
    .site-header .main-navigation > ul > li + li::before { content: '/'; position: absolute; left: 0; top: 50%; transform: translate(-50%, -50%); font-family: var(--lime-nav-font); font-size: 20px; color: #006330; }
    .site-header .main-navigation ul li a { font-family: var(--lime-nav-font); font-weight: 400; font-size: 18px; letter-spacing: 0; text-transform: lowercase; color: #006330; padding-bottom: 0; }
    .site-header .main-navigation > ul > li:hover > a { color: #006330; }
    .site-header .main-navigation .sub-menu { width: 150px; min-width: 150px; left: auto; right: 0; top: 100%; padding: 0; margin: 0; background: #ffffff; border: 0; box-shadow: none; }
    .site-header .main-navigation .sub-menu li { padding: 0; margin: 0; }
    .site-header .main-navigation .sub-menu a { display: block; padding: 15px 20px; text-align: center; border-bottom: 1px solid #eeeeee; background: #ffffff; }
    .site-header .main-navigation ul.sub-menu li a:hover { color: #006330; }
    .site-header .language-switcher { font-family: var(--lime-nav-font); font-weight: 400; font-size: 18px; color: #006330; }
    .site-header .language-switcher a { font-family: var(--lime-nav-font); font-size: 18px; color: #006330; font-weight: 400; margin: 0 4px; opacity: 1; }
}

/* Original body typography */
main p, main li { font-family: var(--lime-nav-font) !important; font-size: 14pt !important; letter-spacing: 0.1em !important; line-height: 1.6 !important; color: #878787 !important; }
main h2:not(.filter-btn), main h3:not(.grid-item h3) { font-family: var(--lime-nav-font) !important; font-size: 18pt !important; font-weight: 700 !important; letter-spacing: 0.1em !important; color: #878787 !important; }
@media (max-width: 900px) {
    .site-header .main-navigation ul li a { font-family: var(--lime-nav-font); font-weight: 400; color: #006330; }
    .site-header .language-switcher a { font-family: var(--lime-nav-font); font-weight: 400; font-size: 15px; color: #006330; opacity: 1; }
    .nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after { background: #006330; }
}