/* ========================================
   CSS Variables (Design Tokens)
   ======================================== */
:root {
    /* Colors */
    --primary-color: #8b7355;
    --primary-dark: #6b5642;
    --primary-light: #f5f0e8;
    --secondary-color: #8d6e63;
    --accent-color: #ff9800;

    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --bg-color: #ffffff;
    --bg-alt: #f5f5f5;
    --border-color: #e0e0e0;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-heading: Georgia, 'Times New Roman', serif;

    --font-size-base: 16px;
    --font-size-small: 0.875rem;
    --font-size-large: 1.125rem;
    --line-height-base: 1.6;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 220px;  /* Increased to account for full header + nav */

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-heading);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========================================
   Header & Navigation (NO JAVASCRIPT!)
   ======================================== */
.site-header {
    background-color: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Header Top Section with Logo and Info */
.header-top {
    background-color: var(--bg-light);
    padding: var(--spacing-md) 0;
}

.header-branding {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    flex-direction: row;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.site-logo-img {
    width: 200px;
    min-width: 200px;
    height: auto;
    flex-shrink: 0;
    display: block;
}

.site-info {
    flex: 1;
    min-width: 0;
}

.site-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.3;
}

.site-subtitle {
    font-size: 1rem;
    color: var(--text-color);
    margin: 0 0 var(--spacing-sm) 0;
    font-style: italic;
}

.site-address,
.site-contact {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: var(--spacing-xs) 0;
    line-height: 1.5;
}

.site-contact a {
    color: var(--primary-color);
    text-decoration: none;
}

.site-contact a:hover {
    text-decoration: underline;
}

/* Header Navigation Section */
.header-nav {
    padding: 0;

}

.site-nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    background-color: var(--primary-color);
    border-top: 3px solid var(--secondary-color);
    border-bottom: 3px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

/* Mobile Menu Toggle - Checkbox Hack (NO JAVASCRIPT) */
.menu-toggle,
.submenu-toggle {
    display: none;
}

.menu-icon {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-icon span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 3px 0;
    transition: all var(--transition-base);
    display: block;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    color: #ffffff;
    font-weight: 500;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

/* Add dropdown indicator */
.has-submenu > .nav-link::after,
.has-submenu > label.nav-link::after {
    content: ' ▼';
    font-size: 0.7em;
    margin-left: 0.3em;
    opacity: 0.6;
}

/* Label als Link stylen */
label.nav-link {
    cursor: pointer;
}

.nav-link:hover,
.nav-link:focus {
    color: #e0f2e0;
    text-decoration: none;
}

.nav-link[aria-current="page"] {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

/* Dropdown Menu (CSS-only with :hover and :focus-within) */
.has-submenu > .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-md);
    list-style: none;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) 0;
    z-index: 1000;
}

/* Desktop: Hover to show */
@media (hover: hover) {
    .has-submenu:hover .submenu,
    .has-submenu:focus-within .submenu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}

.submenu-link {
    display: block;
    padding: var(--spacing-sm);
    color: var(--text-color);
    transition: background-color var(--transition-fast);
}

.submenu-link:hover,
.submenu-link:focus {
    background-color: var(--primary-light);
    text-decoration: none;
}

/* Nested Submenu (2nd level dropdown) */
.submenu-item {
    position: relative;
}

.submenu-item.has-submenu > .submenu {
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 2px;
    transform: translateX(-10px);
}

.submenu-item.has-submenu:hover > .submenu,
.submenu-item.has-submenu:focus-within > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Change arrow direction for nested items */
.submenu-item.has-submenu > .submenu-link::after {
    content: ' ▶';
    float: right;
    margin-left: var(--spacing-sm);
}

/* ========================================
   Mobile Navigation (Checkbox Hack)
   ======================================== */
@media (max-width: 768px) {
    .header-top {
        padding: var(--spacing-sm) 0;
    }

    .header-branding {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    /* Logo auf mobilen Geräten ausblenden */
    .site-logo-img {
        display: none;
    }

    .site-info {
        width: 100%;
    }

    .site-title {
        font-size: 1.3rem;
    }

    .site-subtitle {
        font-size: 0.9rem;
    }

    .site-address,
    .site-contact {
        font-size: 0.85rem;
    }

    .menu-icon {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--bg-color);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        gap: 0;
    }

    /* Show menu when checkbox is checked */
    .menu-toggle:checked ~ .nav-menu {
        max-height: 100vh;
        padding: var(--spacing-md) 0;
    }

    /* Animate hamburger icon */
    .menu-toggle:checked ~ .menu-icon span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .menu-toggle:checked ~ .menu-icon span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle:checked ~ .menu-icon span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .nav-item {
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 0;
    }

    .nav-link {
        padding: var(--spacing-xs) var(--spacing-md);
        color: var(--text-color);
        font-size: 0.95rem;
    }

    .nav-link:hover,
    .nav-link:focus {
        color: var(--primary-color);
    }

    /* Mobile Submenu */
    .has-submenu .submenu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: var(--bg-alt);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }

    /* Show submenu when checkbox is checked */
    .submenu-toggle:checked ~ .submenu {
        max-height: 500px;
    }

    .submenu-link {
        padding: var(--spacing-xs) var(--spacing-md) var(--spacing-xs) var(--spacing-lg);
        font-size: 0.9rem;
    }
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--text-color);
    color: var(--bg-color);
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--bg-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--bg-alt);
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links a:focus {
    color: var(--primary-light);
}

.footer-quote {
    text-align: center;
    margin: var(--spacing-xl) 0 var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.footer-quote p {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--primary-light);
    margin: 0;
}

.footer-quote .quote-author {
    font-size: 0.9rem;
    color: var(--text-lighter);
    margin-top: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-lighter);
}

/* ========================================
   Layout Components
   ======================================== */
.content-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

/* Service Grid */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.service-card {
    background-color: var(--bg-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

/* Button */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--bg-color);
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-align: center;
    transition: background-color var(--transition-fast);
    margin-top: var(--spacing-sm);
}

.btn:hover,
.btn:focus {
    background-color: var(--primary-dark);
    text-decoration: none;
}

/* Article/Content Styles */
.article-content {
    max-width: 800px;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.article-content ul,
.article-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

/* Page List */
.page-list {
    margin-top: var(--spacing-xl);
}

.page-item {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.page-item h2 {
    margin-bottom: var(--spacing-sm);
}

.btn-small {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--primary-color);
    color: var(--bg-color);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-small);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.btn-small:hover,
.btn-small:focus {
    background-color: var(--primary-dark);
    text-decoration: none;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-content {
    max-width: 900px;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   Two-Column Layout (Text + Image)
   ======================================== */
.content-columns {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin: var(--spacing-lg) 0;
}

.column-image {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-md));
    align-self: start;
    text-align: center;
}

.column-image img {
    width: 100%;
    max-width: 300px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.image-caption {
    font-style: italic;
    color: var(--primary-color);
    font-size: 1.1rem;
    margin: var(--spacing-md) 0 var(--spacing-xs);
    line-height: 1.4;
}

.quote-author {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0;
}

/* ========================================
   Page Layout with Sidebar
   ======================================== */
.page-layout.with-sidebar {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--spacing-xl);
    align-items: start;
}

.main-content {
    min-width: 0; /* Prevents grid overflow */
}

.sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-md));
    align-self: start;
}

/* Section Navigation */
.section-nav {
    background-color: var(--bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.section-nav h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: var(--spacing-xs);
}

.section-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.section-nav li {
    margin-bottom: var(--spacing-xs);
}

.section-nav a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.section-nav a:hover,
.section-nav a:focus {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    padding-left: calc(var(--spacing-sm) + 0.5rem);
}

.section-nav a.active,
.section-nav a[aria-current="page"] {
    background-color: var(--primary-color);
    color: var(--bg-color);
    font-weight: 600;
}

/* ========================================
   Responsive Typography
   ======================================== */
@media (max-width: 768px) {
    :root {
        --font-size-base: 15px;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .content-wrapper {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    /* Stack columns on mobile */
    .content-columns {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .column-image {
        position: static;
        order: -1; /* Image above text on mobile */
    }

    .column-image img {
        max-width: 250px;
    }

    /* Stack sidebar below content on mobile */
    .page-layout.with-sidebar {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        margin-top: var(--spacing-lg);
    }
}

/* ========================================
   Accessibility
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: var(--spacing-sm);
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}