/* c:\dev\humberg\website\assets\css\style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;600;700;800&display=swap');

:root {
    --bg-primary: var(--bg-color, #ffffff);
    --bg-secondary: var(--bg-secondary, #f9fafb);
    --bg-glass: #ffffff;
    --border-color: #e5e7eb;
    
    --text-primary: var(--text-color, #111827); /* Dark charcoal/almost black */
    --text-secondary: var(--text-color, #4b5563); /* Medium slate gray */
    --text-muted: #9ca3af; /* Light gray */
    
    --color-accent: var(--link-color, #c20016); /* Competitor brand red default */
    --color-accent-hover: var(--nav-hover, #c20016);
    --color-success: #10b981;
    
    --font-heading: 'bio-sans', 'Outfit', sans-serif;
    --font-body: 'bio-sans', 'Inter', sans-serif;
    
    --transition-smooth: var(--transition-hover, all 0.2s ease-in-out);
    --shadow-premium: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --radius-premium: 0px;
}

/* Sector Assignment Theme Color Overrides */
body.sektor-baumschutz {
    --color-accent: #10b981; /* Emerald Green */
    --color-accent-hover: #059669;
}

body.sektor-wassermanagement {
    --color-accent: #0284c7; /* Water Blue */
    --color-accent-hover: #0369a1;
}

body.sektor-stadtmobiliar {
    --color-accent: #d97706; /* Bronze/Amber */
    --color-accent-hover: #b45309;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

h1 {
    font-size: 3rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--color-accent-hover);
}

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
}

.logo-text span {
    color: var(--color-accent);
    margin-left: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0;
    transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent);
    background-color: rgba(0, 0, 0, 0.03);
}

/* Navigation Dropdowns */
.nav-item-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-premium);
    list-style: none;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
    margin-top: 0.5rem;
}

.nav-item-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-item {
    display: block;
}

.nav-dropdown-item a {
    display: block;
    padding: 0.6rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-dropdown-item a:hover, .nav-dropdown-item a.active {
    color: var(--color-accent);
    background-color: rgba(15, 118, 110, 0.05);
}

/* Third-level navigation flyouts (Desktop) */
.nav-item-sub-dropdown {
    position: relative;
}

.nav-sub-dropdown-menu {
    position: absolute;
    top: 0;
    left: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-premium);
    list-style: none;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
    margin-top: -0.5rem; /* Align with parent list top padding */
    margin-left: 0.25rem;
}

.nav-item-sub-dropdown:hover .nav-sub-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.nav-sub-dropdown-item {
    display: block;
}

.nav-sub-dropdown-item a {
    display: block;
    padding: 0.6rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-sub-dropdown-item a:hover, .nav-sub-dropdown-item a.active {
    color: var(--color-accent);
    background-color: rgba(15, 118, 110, 0.05);
}

/* Caret indicator for 3rd level dropdowns */
.has-sub-dropdown {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.has-sub-dropdown::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(-45deg);
    transition: var(--transition-smooth);
    margin-right: 0.5rem;
}

.nav-item-sub-dropdown:hover .has-sub-dropdown::after {
    transform: rotate(135deg);
}

/* Caret indicator */
.nav-link.has-dropdown {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-link.has-dropdown::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-1px) rotate(45deg);
    transition: var(--transition-smooth);
}

.nav-item-dropdown:hover .nav-link.has-dropdown::after {
    transform: translateY(1px) rotate(-135deg);
}

/* Main Container */
main {
    min-height: 70vh;
    padding-bottom: 3rem;
}

.content-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
}

/* Section Card Base */
.section-block {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-premium);
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.section-block:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

/* Rich Text & Content Styles */
.richtext-content {
    color: var(--text-secondary);
}

.richtext-content ul, .richtext-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1.25rem;
}

.richtext-content li {
    margin-bottom: 0.5rem;
}

/* Side by Side (Bild-Text) */
.bild-text-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2.5rem;
    align-items: center;
}

@media (max-width: 768px) {
    .bild-text-grid {
        grid-template-columns: 1fr;
    }
}

.section-image-wrapper {
    position: relative;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.section-image {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-smooth);
}

.section-image-wrapper:hover .section-image {
    transform: scale(1.03);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 0;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

/* Accordion (FAQ / Downloads) */
.accordion-item {
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 0;
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    padding: 0.5rem 0;
}

.accordion-trigger::after {
    content: '▼';
    font-size: 0.8rem;
    color: var(--color-accent);
    transition: var(--transition-smooth);
}

.accordion-trigger[aria-expanded="true"]::after {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    color: var(--text-secondary);
    padding-right: 2rem;
}

/* Downloads List */
.downloads-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.download-link-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.download-link-item:hover {
    background: rgba(0, 0, 0, 0.02);
    border-color: var(--color-accent);
}

.download-btn {
    background: var(--btn-bg, var(--color-accent));
    color: var(--btn-text, #ffffff);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: 0;
    transition: var(--transition-smooth);
}

.download-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0rem;
    margin-top: 5rem;
    text-align: center;
    color: var(--text-muted);
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    list-style: none;
}

.footer-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-link:hover {
    color: var(--text-primary);
}

.copyright {
    font-size: 0.85rem;
}

/* Grid Columns Container for Nested Cards */
.grid-columns-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
    align-items: stretch;
}

@media (max-width: 768px) {
    .grid-columns-container {
        grid-template-columns: 1fr;
    }
}

/* Nested Column Cards */
.nested-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-premium);
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.nested-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.nested-card h2, .nested-card h3 {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 1rem;
}

/* Custom list styling inside cards (leading-zero etc.) */
.leading-zero-list {
    list-style: none;
    counter-reset: custom-counter;
    padding-left: 0;
}

.leading-zero-list li {
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 0.85rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.leading-zero-list li::before {
    counter-increment: custom-counter;
    content: "0" counter(custom-counter);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-accent);
    background: rgba(0, 0, 0, 0.04);
    padding: 0.2rem 0.5rem;
    border-radius: 0;
}

/* ==========================================================================
   Form Styling (Premium, Glassmorphic, Rectangular Corners)
   ========================================================================== */
.form-container-block {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.form-title {
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2rem;
    border-bottom: none;
    padding-bottom: 0;
}

.humberg-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 0; /* Strict rectangular corners */
    padding: 0.85rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    width: 100%;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-group select option {
    background-color: #ffffff;
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
}

body.sektor-baumschutz .form-group input:focus,
body.sektor-baumschutz .form-group select:focus,
body.sektor-baumschutz .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

body.sektor-stadtmobiliar .form-group input:focus,
body.sektor-stadtmobiliar .form-group select:focus,
body.sektor-stadtmobiliar .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* File Upload styling */
.file-upload-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-input-hidden {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.file-upload-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    padding: 0.85rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 0;
    flex-shrink: 0;
}

.file-upload-wrapper:hover .file-upload-trigger {
    background: rgba(15, 118, 110, 0.08);
    border-color: var(--color-accent);
}

body.sektor-baumschutz .file-upload-wrapper:hover .file-upload-trigger {
    background: rgba(16, 185, 129, 0.08);
    border-color: var(--color-accent);
}

.file-selected-name {
    font-size: 0.85rem;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-selected-name.file-selected {
    color: var(--color-accent);
    font-weight: 500;
}

/* Checkbox group styling */
.checkbox-group {
    margin-top: 0.5rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-wrapper input[type="checkbox"] {
    appearance: none;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 0;
    display: inline-block;
    position: relative;
    cursor: pointer;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.checkbox-wrapper input[type="checkbox"]:checked {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.checkbox-wrapper input[type="checkbox"]:checked::after {
    content: '✔';
    font-size: 0.75rem;
    color: #ffffff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.checkbox-label {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-secondary);
    cursor: pointer;
}

/* Submit button styling */
.submit-btn {
    background: var(--btn-bg, var(--color-accent));
    color: var(--btn-text, #ffffff);
    border: none;
    border-radius: 0; /* Strict rectangular */
    padding: 1rem 2rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(11, 15, 25, 0.2);
    border-top: 2px solid var(--bg-primary);
    border-radius: 50%; /* Spinner itself is circular */
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Form Validation feedback */
.was-validated input:invalid,
.was-validated select:invalid,
.was-validated textarea:invalid {
    border-color: #ef4444;
}

.was-validated input[type="checkbox"]:invalid {
    outline: 1px solid #ef4444;
}

/* Form Message Box (Success / Error) */
.form-message-container {
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid transparent;
    font-size: 0.95rem;
    line-height: 1.5;
}

.form-message-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--color-success);
    color: #34d399;
}

.form-message-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    color: #f87171;
}

/* ==========================================================================
   Responsive & Mobile Navigation (Hamburger Menu)
   ========================================================================== */

/* Mobile menu toggle button (hamburger icon) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}

.mobile-menu-toggle .hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
    transform-origin: left center;
}

/* Hamburger animation to 'X' */
.mobile-menu-toggle.active .hamburger-bar:nth-child(1) {
    transform: rotate(45deg) translateY(-2px);
    background-color: var(--color-accent);
}

.mobile-menu-toggle.active .hamburger-bar:nth-child(2) {
    width: 0%;
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-bar:nth-child(3) {
    transform: rotate(-45deg) translateY(2px);
    background-color: var(--color-accent);
}

/* Mobile Media Query */
@media screen and (max-width: 991px) {
    .nav-container {
        position: relative;
        padding: 1rem 1.5rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Search box margin on mobile */
    .header-search {
        margin-left: auto !important;
        margin-right: 1rem;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
        display: none; /* Hide by default */
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 0;
        z-index: 100;
    }
    
    .nav-menu.mobile-active {
        display: flex; /* Show when active */
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        width: 100%;
        padding: 0.75rem 1.5rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    }
    
    .nav-link:hover, .nav-link.active {
        background-color: rgba(0, 0, 0, 0.02);
    }

    /* Mobile Dropdown Menu */
    .nav-item-dropdown .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-left: 3px solid var(--color-accent);
        background-color: var(--bg-secondary);
        width: 100%;
        min-width: 100%;
        padding: 0.25rem 0 0.25rem 1.5rem;
        margin-top: 0;
        display: none; /* Closed by default */
    }
    
    /* Open dropdown on hover / focus for easy mobile usability */
    .nav-item-dropdown:hover .nav-dropdown-menu {
        display: block;
    }
    
    .nav-dropdown-item a {
        padding: 0.5rem 1.5rem;
    }

    /* Mobile third-level dropdown styling */
    .nav-item-sub-dropdown .nav-sub-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-left: 2px solid var(--color-accent);
        background-color: rgba(0, 0, 0, 0.02);
        width: 100%;
        min-width: 100%;
        padding: 0.25rem 0 0.25rem 1.5rem;
        margin-top: 0;
        margin-left: 0;
        display: none; /* Closed by default */
    }

    .nav-item-sub-dropdown:hover .nav-sub-dropdown-menu {
        display: block; /* Show on hover */
    }

    .nav-sub-dropdown-item a {
        padding: 0.5rem 1.5rem;
    }
}

/* ==========================================================================
   Breadcrumb Navigation Styles
   ========================================================================== */
.breadcrumb-trail {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
    margin-bottom: 2rem;
    font-size: var(--font-size-small, 0.875rem);
}

.breadcrumb-trail .content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0;
    margin: 0;
}

.breadcrumb-list li {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
}

.breadcrumb-list li a {
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    font-weight: 500;
}

.breadcrumb-list li a:hover {
    color: var(--color-accent);
}

.breadcrumb-separator {
    margin: 0 0.75rem;
    color: var(--text-muted);
    user-select: none;
    font-weight: 300;
}

.breadcrumb-list li.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Global Competitor Style Adaptations (Sharp Borders & Scroll Behavior)
   ========================================================================== */
*, *::before, *::after {
    border-radius: 0 !important;
}

/* Exception for spinners/icons that must remain circular */
.btn-spinner, .spinner, .spinner-border, .loader, [class*="spinner-"] {
    border-radius: 50% !important;
}

/* ==========================================================================
   Artikel-Detailseite Premium Layout Styles (.hb-)
   ========================================================================== */

.hb-container {
    max-width: 1280px;
    margin: auto;
    padding: 0 28px;
}

.hb-section {
    padding: 76px 0;
}

.hb-eyebrow, .hb-kicker {
    text-transform: uppercase;
    letter-spacing: .08em;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-accent, #6f7658);
}

.hb-section-head {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    align-items: flex-end;
    margin-bottom: 32px;
}

.hb-section-head h2 {
    font-size: 2rem;
    margin: 6px 0 0;
}

.hb-section-head p {
    max-width: 620px;
    margin: 0;
    color: var(--text-secondary, #555);
}

.hb-hero {
    height: 560px;
    position: relative;
    overflow: hidden;
}

.hb-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hb-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.68), rgba(0,0,0,.12));
}

.hb-hero__content {
    position: absolute;
    z-index: 2;
    left: 60px;
    bottom: 60px;
    color: #fff;
    max-width: 760px;
}

.hb-hero h1 {
    font-size: 68px;
    margin: 8px 0;
    font-family: var(--font-heading);
}

.hb-hero p {
    font-size: 21px;
    max-width: 680px;
}

.hb-hero__meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
}

.hb-hero__meta span {
    background: rgba(255,255,255,.15);
    border: 1px solid rgba(255,255,255,.3);
    padding: 9px 12px;
}

.floating-actions {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.floating-action {
    width: 54px;
    min-height: 54px;
    background: #111;
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    box-shadow: 0 8px 22px rgba(0,0,0,.18);
    transition: .2s;
    overflow: hidden;
}

.floating-action span {
    font-size: 20px;
}

.floating-action small {
    font-size: 10px;
    opacity: 0;
    max-height: 0;
    transition: .2s;
}

.floating-action:hover {
    width: 120px;
    background: #2d2d2d;
}

.floating-action:hover small {
    opacity: 1;
    max-height: 20px;
    margin-top: 4px;
}

.floating-action--config {
    background: var(--color-accent, #6f7658);
}

.hb-tech-grid, .hb-benefit-grid, .hb-card-grid, .hb-reco-grid, .hb-download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));
    gap: 20px;
}

.hb-tech-card, .hb-benefit, .hb-ref-card, .hb-accessory-card, .hb-reco-card, .hb-download-card {
    background: #fff;
    border: 1px solid #ddd;
    padding: 22px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

.hb-tech-card span, .hb-reco-card span, .hb-download-card small {
    display: block;
    color: var(--color-accent, #6f7658);
    font-size: 13px;
    margin-bottom: 6px;
}

.hb-tech-card strong {
    font-size: 20px;
}

.hb-anchor-teaser {
    margin-top: 28px;
    background: #eef0e4;
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.hb-anchor-teaser p {
    margin: 4px 0 0;
}

.hb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    text-decoration: none;
    font-weight: 700;
    white-space: nowrap;
    transition: var(--transition-smooth);
}

.hb-btn-dark {
    background: #111;
    color: #fff;
}

.hb-btn-dark:hover {
    background: var(--color-accent, #6f7658);
}

.hb-benefit span {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    background: #e8ecd6;
    margin-bottom: 14px;
    font-size: 20px;
}

.hb-table-wrap {
    overflow-x: auto;
    margin-top: 1rem;
}

.hb-table-wrap table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.hb-table-wrap th, .hb-table-wrap td {
    border: 1px solid #ddd;
    padding: 15px;
    text-align: left;
}

.hb-table-wrap th {
    font-family: var(--font-heading);
    font-weight: 700;
    background-color: var(--bg-secondary, #f8f9fa);
}

.hb-component-layout, .hb-system-switch-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 38px;
    align-items: start;
}

.hb-component-image img, .hb-ref-card img, .hb-accessory-card img {
    width: 100%;
    display: block;
    object-fit: cover;
}

.hb-components {
    display: grid;
    gap: 13px;
}

.hb-component {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 13px;
    background: #fff;
    border: 1px solid #ddd;
    padding: 15px;
}

.hb-component-num {
    width: 34px;
    height: 34px;
    background: #111;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.hb-component span {
    display: block;
    color: #666;
    margin-top: 3px;
    font-size: 13px;
}

.hb-references .hb-card-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 360px));
    justify-content: flex-start;
}

.hb-ref-card-link {
    display: block;
    height: 100%;
}

.hb-ref-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid #ddd;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    overflow: hidden;
}

.hb-ref-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    border-color: var(--color-accent, #6f7658);
}

.hb-ref-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    height: auto;
    object-fit: cover;
    display: block;
}

.hb-ref-card div {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hb-ref-card span {
    display: block;
    color: #666;
    margin-top: 4px;
    font-size: 13px;
}

.hb-accessory-card h3 {
    margin-top: 20px;
    font-size: 18px;
}

.hb-accessory-card p {
    padding-bottom: 22px;
    color: #666;
}

.hb-download-card span {
    font-size: 30px;
    display: block;
    margin-bottom: 12px;
}

.hb-system {
    background: #eceee4;
}

.hb-system-copy, .hb-system-chooser {
    background: #fff;
    border: 1px solid #ddd;
    padding: 26px;
}

.hb-system-visual {
    position: relative;
    background: #f0f0f0;
}

.hb-system-visual img {
    width: 100%;
    display: block;
}

.hb-system-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border: 0;
    background: rgba(0,0,0,.7);
    color: #fff;
    font-size: 34px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hb-system-prev {
    left: 12px;
}

.hb-system-next {
    right: 12px;
}

.hb-system-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.hb-system-tabs button {
    border: 1px solid #ddd;
    background: #ffffff;
    color: #333;
    padding: 14px 20px;
    cursor: pointer;
    font-family: var(--font-heading, sans-serif);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.05em;
    transition: all 0.25s ease;
}

.hb-system-tabs button:hover {
    border-color: var(--color-accent, #6f7658);
    color: var(--color-accent, #6f7658);
    background: #fbfbf9;
}

.hb-system-tabs button.is-active {
    background: var(--color-accent, #6f7658);
    border-color: var(--color-accent, #6f7658);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(111, 118, 88, 0.2);
}

.hb-config-section {
    background: #e8ecd6;
}

.hb-config-teaser__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: center;
}

/* Product gallery */
.hb-product-gallery-section {
    padding-top: 54px;
    background: #f5f5f2;
}

.hb-product-gallery-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
    gap: 38px;
    align-items: center;
}

.hb-product-gallery {
    background: #fff;
    border: 1px solid #ddd;
    padding: 18px;
}

.hb-product-main-image {
    background: #ededed;
    min-height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hb-product-main-image img {
    width: 100%;
    height: 100%;
    max-height: 560px;
    object-fit: contain;
    display: block;
}

.hb-product-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 14px;
}

.hb-product-thumbs button {
    border: 2px solid transparent;
    background: #f0f0f0;
    padding: 0;
    cursor: pointer;
    height: 120px;
    overflow: hidden;
}

.hb-product-thumbs button.is-active {
    border-color: #111;
}

.hb-product-thumbs img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hb-product-gallery-copy {
    background: #eef0e4;
    padding: 34px;
}

.hb-product-gallery-copy h2 {
    font-size: 2rem;
    margin: 8px 0 14px;
}

.hb-gallery-points {
    display: grid;
    gap: 12px;
    margin-top: 28px;
}

.hb-gallery-points div {
    background: #fff;
    border: 1px solid #ddd;
    padding: 16px;
}

.hb-gallery-points span {
    display: block;
    color: #666;
    margin-top: 4px;
}

/* Nested product gallery inside columns styling */
.column-block .hb-product-gallery-section {
    padding-top: 0;
    background: transparent;
}
.column-block .hb-product-gallery-section .hb-container {
    padding: 0;
    max-width: 100%;
}
.column-block .hb-product-gallery-grid {
    grid-template-columns: 1fr;
    gap: 0;
}
.column-block .hb-product-gallery-copy {
    display: none;
}
.column-block .hb-product-main-image,
.column-block .hb-product-main-image-sec {
    min-height: auto;
    height: auto;
    background: #f8fafc;
    aspect-ratio: 1 / 1;
}
.column-block .hb-product-main-image img,
.column-block .hb-product-main-image-sec img {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: contain;
}
.column-block .hb-product-thumbs button,
.column-block .hb-product-thumbs-sec button {
    height: auto;
    aspect-ratio: 1 / 1;
}
.column-block .hb-product-thumbs-sec button {
    width: 70px !important;
    height: 70px !important;
}


/* Article switcher */
.hb-article-switcher {
    position: absolute;
    right: 40px;
    bottom: 40px;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 14px;
}

.hb-article-arrow {
    width: 54px;
    height: 54px;
    border: 0;
    background: rgba(0,0,0,.72);
    color: #fff;
    font-size: 28px;
    cursor: pointer;
}

.hb-article-preview {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255,255,255,.92);
    padding: 10px 14px;
    min-width: 240px;
}

.hb-article-preview img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    background: #efefef;
}

.hb-article-preview span {
    display: block;
    font-size: 12px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.hb-article-preview strong {
    font-size: 20px;
}

/* Slider */
.hb-product-slider-wrap {
    display: grid;
    grid-template-columns: 70px 1fr 70px;
    gap: 20px;
    align-items: center;
}

.hb-product-slider {
    display: grid;
    grid-template-columns: repeat(4, minmax(260px, 1fr));
    gap: 20px;
    overflow: hidden;
}

.hb-product-slider .hb-accessory-card:nth-child(4) {
    display: none;
}

.hb-product-slider.show-next .hb-accessory-card:nth-child(1) {
    display: none;
}

.hb-product-slider.show-next .hb-accessory-card:nth-child(4) {
    display: block;
}

.hb-product-slider-arrow {
    width: 70px;
    height: 70px;
    border: none;
    background: #111;
    color: #fff;
    font-size: 42px;
    cursor: pointer;
}

/* Surface swatches & zoom-on-hover effect */
.hb-tech-surface-card {
    position: relative;
    overflow: visible;
}

.hb-surface-swatches {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    overflow: visible;
}

.hb-swatch {
    position: relative !important;
    overflow: visible !important;
    width: 58px !important;
    height: 58px !important;
    display: block !important;
    border: 2px solid #ddd;
    background: #f0f0f0;
}

.hb-swatch img {
    width: 58px !important;
    height: 58px !important;
    object-fit: cover !important;
    display: block !important;
    transition: transform .22s ease, box-shadow .22s ease !important;
    transform-origin: center center !important;
    position: relative !important;
    z-index: 1 !important;
}

.hb-swatch:hover {
    z-index: 200 !important;
}

.hb-swatch:hover img {
    transform: scale(3.3) !important;
    box-shadow: 0 18px 40px rgba(0,0,0,.28) !important;
    z-index: 20 !important;
    border-color: #111;
}

.hb-swatch-overlay {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 190px;
    min-height: 64px;
    transform: translate(-50%, 58px) scale(.92);
    background: rgba(0,0,0,.78);
    color: #fff;
    padding: 9px 10px;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    z-index: 30;
    transition: opacity .18s ease, transform .22s ease;
    border-radius: 0 !important;
}

.hb-swatch-overlay strong {
    display: block;
    font-size: 12px;
    line-height: 1.2;
    margin-bottom: 4px;
}

.hb-swatch-overlay span {
    display: block;
    font-size: 10px;
    line-height: 1.25;
    opacity: .92;
}

.hb-swatch:hover .hb-swatch-overlay {
    opacity: 1;
    transform: translate(-50%, 72px) scale(1);
}

@media (max-width: 991px) {
    .hb-section-head, .hb-anchor-teaser, .hb-config-teaser__inner {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .hb-component-layout, .hb-system-switch-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .hb-hero__content {
        left: 28px;
        right: 28px;
        bottom: 40px;
    }
    
    .hb-hero h1 {
        font-size: 44px;
    }
    
    .hb-product-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .hb-product-main-image {
        min-height: 360px;
    }
    
    .hb-product-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hb-article-switcher {
        left: 28px;
        right: 28px;
        bottom: 20px;
    }
    
    .hb-article-preview {
        min-width: 0;
        flex: 1;
    }
    
    .hb-product-slider-wrap {
        grid-template-columns: 50px 1fr 50px;
    }
    
    .hb-product-slider {
        grid-template-columns: 1fr;
    }
    
    .hb-product-slider .hb-accessory-card {
        display: none !important;
    }
    
    .hb-product-slider .hb-accessory-card:first-child {
        display: block !important;
    }
    
    .hb-swatch:hover img {
        transform: scale(2.4) !important;
    }

    .hb-swatch-overlay {
        width: 160px;
        transform: translate(-50%, 50px) scale(.92);
    }
}

.hb-article-preview strong {
    font-size: 20px;
}

/* Slider */
.hb-product-slider-wrap {
    display: grid;
    grid-template-columns: 70px 1fr 70px;
    gap: 20px;
    align-items: center;
}

.hb-product-slider {
    display: grid;
    grid-template-columns: repeat(4, minmax(260px, 1fr));
    gap: 20px;
    overflow: hidden;
}

.hb-product-slider .hb-accessory-card:nth-child(4) {
    display: none;
}

.hb-product-slider.show-next .hb-accessory-card:nth-child(1) {
    display: none;
}

.hb-product-slider.show-next .hb-accessory-card:nth-child(4) {
    display: block;
}

.hb-product-slider-arrow {
    width: 70px;
    height: 70px;
    border: none;
    background: #111;
    color: #fff;
    font-size: 42px;
    cursor: pointer;
}

/* Surface swatches & zoom-on-hover effect */
.hb-tech-surface-card {
    position: relative;
    overflow: visible;
}

.hb-surface-swatches {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    overflow: visible;
}

.hb-swatch {
    position: relative !important;
    overflow: visible !important;
    width: 58px !important;
    height: 58px !important;
    display: block !important;
    border: 2px solid #ddd;
    background: #f0f0f0;
}

.hb-swatch img {
    width: 58px !important;
    height: 58px !important;
    object-fit: cover !important;
    display: block !important;
    transition: transform .22s ease, box-shadow .22s ease !important;
    transform-origin: center center !important;
    position: relative !important;
    z-index: 1 !important;
}

.hb-swatch:hover {
    z-index: 200 !important;
}

.hb-swatch:hover img {
    transform: scale(3.3) !important;
    box-shadow: 0 18px 40px rgba(0,0,0,.28) !important;
    z-index: 20 !important;
    border-color: #111;
}

.hb-swatch-overlay {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 190px;
    min-height: 64px;
    transform: translate(-50%, 58px) scale(.92);
    background: rgba(0,0,0,.78);
    color: #fff;
    padding: 9px 10px;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    z-index: 30;
    transition: opacity .18s ease, transform .22s ease;
    border-radius: 0 !important;
}

.hb-swatch-overlay strong {
    display: block;
    font-size: 12px;
    line-height: 1.2;
    margin-bottom: 4px;
}

.hb-swatch-overlay span {
    display: block;
    font-size: 10px;
    line-height: 1.25;
    opacity: .92;
}

.hb-swatch:hover .hb-swatch-overlay {
    opacity: 1;
    transform: translate(-50%, 72px) scale(1);
}

@media (max-width: 991px) {
    .hb-section-head, .hb-anchor-teaser, .hb-config-teaser__inner {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .hb-component-layout, .hb-system-switch-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .hb-hero__content {
        left: 28px;
        right: 28px;
        bottom: 40px;
    }
    
    .hb-hero h1 {
        font-size: 44px;
    }
    
    .hb-product-gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .hb-product-main-image {
        min-height: 360px;
    }
    
    .hb-product-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hb-article-switcher {
        left: 28px;
        right: 28px;
        bottom: 20px;
    }
    
    .hb-article-preview {
        min-width: 0;
        flex: 1;
    }
    
    .hb-product-slider-wrap {
        grid-template-columns: 50px 1fr 50px;
    }
    
    .hb-product-slider {
        grid-template-columns: 1fr;
    }
    
    .hb-product-slider .hb-accessory-card {
        display: none !important;
    }
    
    .hb-product-slider .hb-accessory-card:first-child {
        display: block !important;
    }
    
    .hb-swatch:hover img {
        transform: scale(2.4) !important;
    }

    .hb-swatch-overlay {
        width: 160px;
        transform: translate(-50%, 50px) scale(.92);
    }

    .hb-swatch:hover .hb-swatch-overlay {
        transform: translate(-50%, 58px) scale(1);
    }
    
    .floating-actions {
        right: 10px;
    }
}

/* Custom premium section styles */
.sec-style-border-shadow {
    border: 1px solid var(--border-color, #e2e8f0) !important;
    box-shadow: var(--shadow-premium) !important;
    border-radius: 8px !important;
    padding: 2.5rem !important;
    background-color: #ffffff !important;
    margin-bottom: 2rem;
}

.sec-style-border {
    border: 1px solid var(--border-color, #e2e8f0) !important;
    border-radius: 8px !important;
    padding: 2.5rem !important;
    background-color: #ffffff !important;
    margin-bottom: 2rem;
}

.sec-style-shadow {
    box-shadow: var(--shadow-premium) !important;
    border-radius: 8px !important;
    padding: 2.5rem !important;
    background-color: #ffffff !important;
    margin-bottom: 2rem;
}

.sec-style-gray-bg {
    background-color: var(--bg-secondary, #f8fafc) !important;
    padding: 2.5rem !important;
    border-radius: 8px !important;
}

.sec-style-gray-bg.sec-style-border,
.sec-style-gray-bg.sec-style-shadow {
    background-color: var(--bg-secondary, #f8fafc) !important;
}