/* ========================================
   Eco Metricum - Stylesheet
   Design orientiert am Auswärtigen Amt
   ======================================== */

/* CSS Variables */
:root {
    /* Hauptfarben - Limette */
    --color-primary: #4d7c0f;
    --color-primary-dark: #365314;
    --color-primary-light: #65a30d;

    /* Akzentfarben - Helles Limettengrün */
    --color-accent: #84cc16;
    --color-accent-light: #a3e635;
    --color-accent-dark: #65a30d;

    /* Sekundäre Grüntöne */
    --color-eco-light: #f7fee7;
    --color-eco-medium: #d9f99d;
    --color-eco-forest: #1a2e05;
    --color-eco-leaf: #bef264;
    --color-eco-gold: #c5a028;

    /* Neutrale Farben mit leichtem Grünstich */
    --color-white: #ffffff;
    --color-gray-100: #f1f8e9;
    --color-gray-200: #e8f5e9;
    --color-gray-300: #c8e6c9;
    --color-gray-400: #a5d6a7;
    --color-gray-500: #81c784;
    --color-gray-600: #66bb6a;
    --color-gray-700: #4caf50;
    --color-gray-800: #388e3c;
    --color-gray-900: #2e7d32;
    --color-black: #000000;

    /* Text */
    --color-text: #1b3d1c;
    --color-text-light: #3d5c3e;
    --color-text-muted: #6b8f6c;

    /* Links */
    --color-link: #1b5e20;
    --color-link-hover: #2e7d32;

    /* Spacing - Größere Abstände für luftigeres Layout */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4.5rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;

    /* Typography - Größere Schriften */
    --font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-sm: 0.9rem;
    --font-size-base: 1.1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;

    /* Container - Breiteres Layout */
    --container-max: 1400px;
    --container-narrow: 900px;
    --container-padding: 2.5rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
}

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

/* Ensure all text is selectable */
* {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Skip Links */
.skip-links {
    position: absolute;
    top: -100%;
    left: 0;
    z-index: 10000;
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-primary);
}

.skip-links:focus-within {
    top: 0;
}

.skip-links a {
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    background: var(--color-primary-dark);
}

.skip-links a:focus {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

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

a {
    color: var(--color-link);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   Header
   ======================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
}

/* Header Top Bar */
.header-top {
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-300);
    font-size: var(--font-size-sm);
}

.header-top-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.header-meta-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-meta-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.header-meta-links a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.lang-switcher {
    display: flex;
    gap: var(--spacing-sm);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--color-gray-400);
}

.lang-switcher a {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-weight: 600;
}

.lang-switcher a.active {
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

/* Header Main */
.header-main {
    padding: var(--spacing-md) 0;
    border-bottom: 4px solid var(--color-accent);
    background: linear-gradient(to right, var(--color-eco-light), var(--color-white));
}

.header-main-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    text-decoration: none;
    color: var(--color-primary);
}

.logo-icon {
    width: 56px;
    height: 56px;
    color: var(--color-accent);
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

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

.logo-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-weight: 400;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-toggle,
.menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    background: var(--color-white);
    cursor: pointer;
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-primary);
    transition: all var(--transition-fast);
}

/* Menu-Toggle nur auf Mobile anzeigen */
.menu-toggle {
    display: none;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
}

.search-toggle:hover,
.menu-toggle:hover {
    background: var(--color-gray-100);
    border-color: var(--color-primary);
}

.search-toggle svg {
    width: 20px;
    height: 20px;
}

.menu-toggle-icon {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 20px;
}

.menu-toggle-icon span {
    display: block;
    height: 2px;
    background: currentColor;
    transition: all var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-icon span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Primary Navigation */
.nav-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-eco-forest) 100%);
}

.nav-list {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
}

.nav-list li a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-bottom: 3px solid transparent;
}

.nav-list li a:hover,
.nav-list li a:focus {
    background: rgba(255, 255, 255, 0.1);
    border-bottom-color: var(--color-eco-leaf);
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: var(--spacing-xl);
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
    z-index: 1100;
}

.search-overlay.active {
    transform: translateY(0);
}

.search-form {
    display: flex;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.search-form input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    font-size: var(--font-size-lg);
    font-family: inherit;
}

.search-form input:focus {
    outline: 2px solid var(--color-accent);
}

.search-form button {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-form button:hover {
    background: var(--color-accent-dark);
}

.search-close {
    background: transparent !important;
    color: var(--color-white) !important;
    font-size: var(--font-size-3xl);
    line-height: 1;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--color-gray-100);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-gray-300);
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    font-size: var(--font-size-sm);
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    margin: 0 var(--spacing-sm);
    color: var(--color-gray-500);
}

.breadcrumb a {
    color: var(--color-link);
}

.breadcrumb [aria-current="page"] {
    color: var(--color-text-light);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    background: var(--color-gray-100);
}

.hero-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
    position: relative;
}

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

.hero-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, rgba(255, 255, 255, 1), transparent);
}

.hero-content {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(to bottom, var(--color-white), var(--color-eco-light));
    border-top: 5px solid var(--color-accent);
}

.hero-content .container {
    max-width: var(--container-narrow);
}

.hero-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

/* ========================================
   Content with Image Layout
   ======================================== */

.content-with-image {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.content-text {
    padding-right: var(--spacing-xl);
}

.content-text p {
    line-height: 1.9;
}

.content-text p:last-child {
    margin-bottom: 0;
}

.content-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(27, 94, 32, 0.2);
}

.content-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.content-image:hover img {
    transform: scale(1.05);
}

/* ========================================
   Image Gallery
   ======================================== */

.image-gallery {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: auto;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.gallery-item {
    margin: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    transition: all var(--transition-normal);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(27, 94, 32, 0.25);
}

.gallery-item-large {
    grid-row: span 2;
}

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

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

.gallery-item figcaption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(27, 94, 32, 0.9), transparent);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.gallery-item:hover figcaption {
    transform: translateY(0);
}

/* Responsive Gallery */
@media (max-width: 768px) {
    .image-gallery {
        grid-template-columns: 1fr;
    }

    .gallery-item-large {
        grid-row: span 1;
    }

    .content-with-image {
        grid-template-columns: 1fr;
    }

    .content-image {
        order: -1;
    }

    .hero-image {
        height: 250px;
    }
}

.hero-lead {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    max-width: 100%;
    line-height: 1.8;
}

/* ========================================
   Article / Content Sections
   ======================================== */

.article-section {
    padding: var(--spacing-3xl) 0 var(--spacing-4xl);
}

.article-section>.container {
    max-width: var(--container-max);
}

.content-block {
    margin-bottom: var(--spacing-4xl);
    padding-bottom: var(--spacing-3xl);
    border-bottom: 1px solid var(--color-gray-300);
}

.content-block:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.content-block h2 {
    color: var(--color-primary);
    padding-bottom: var(--spacing-md);
    border-bottom: 4px solid var(--color-accent);
    margin-bottom: var(--spacing-xl);
    display: inline-block;
}

.content-block>p {
    max-width: var(--container-narrow);
    line-height: 1.9;
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.card {
    background: linear-gradient(to bottom right, var(--color-white), var(--color-eco-light));
    border: 1px solid var(--color-gray-300);
    border-left: 5px solid var(--color-accent);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(67, 160, 71, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 8px 25px rgba(27, 94, 32, 0.15);
    transform: translateY(-4px);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 64px;
    height: 64px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

/* Card Background Images */
.card-envyra {
    background-image:
        linear-gradient(to bottom right, rgba(255, 255, 255, 0.85), rgba(247, 254, 231, 0.85)),
        url('https://cdn.pixabay.com/photo/2016/11/18/17/46/house-1836070_1280.jpg');
    background-size: cover;
    background-position: center;
}

.card-effyra {
    background-image:
        linear-gradient(to bottom right, rgba(255, 255, 255, 0.85), rgba(247, 254, 231, 0.85)),
        url('https://cdn.pixabay.com/photo/2016/11/23/15/48/audience-1853662_1280.jpg');
    background-size: cover;
    background-position: center;
}

.card-aerofy {
    background-image:
        linear-gradient(to bottom right, rgba(255, 255, 255, 0.85), rgba(247, 254, 231, 0.85)),
        url('https://cdn.pixabay.com/photo/2017/05/12/08/29/building-2306199_1280.jpg');
    background-size: cover;
    background-position: center;
}

.card-enerseal {
    background-image:
        linear-gradient(to bottom right, rgba(255, 255, 255, 0.85), rgba(247, 254, 231, 0.85)),
        url('https://cdn.pixabay.com/photo/2015/01/09/11/08/startup-594090_1280.jpg');
    background-size: cover;
    background-position: center;
}

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

.card p {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
}

.card-link {
    display: inline-block;
    margin-top: var(--spacing-md);
    font-weight: 600;
    text-decoration: none;
    color: var(--color-primary);
    transition: color 0.2s ease;
    position: relative;
    z-index: 1;
}

.card-link::after {
    content: ' →';
}

.card-link:hover {
    text-decoration: underline;
    color: var(--color-accent);
}

.back-link {
    display: inline-block;
    margin-top: var(--spacing-lg);
    font-weight: 600;
    text-decoration: none;
    color: var(--color-primary);
    transition: color 0.2s ease;
}

.back-link::before {
    content: '← ';
}

.back-link:hover {
    text-decoration: underline;
    color: var(--color-accent);
}

/* Info Box */
.info-box {
    background: linear-gradient(to right, var(--color-eco-light), var(--color-white));
    border-left: 5px solid var(--color-accent);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    box-shadow: inset 0 0 20px rgba(67, 160, 71, 0.05);
}

.info-box h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.process-list {
    list-style: none;
    counter-reset: process;
}

.process-list li {
    counter-increment: process;
    padding: var(--spacing-md) 0;
    padding-left: 3rem;
    position: relative;
    border-bottom: 1px solid var(--color-gray-300);
}

.process-list li:last-child {
    border-bottom: none;
}

.process-list li::before {
    content: counter(process);
    position: absolute;
    left: 0;
    top: var(--spacing-md);
    width: 2rem;
    height: 2rem;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
}

/* Quote */
.quote {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-eco-forest) 100%);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--spacing-3xl);
    margin: var(--spacing-2xl) 0;
    position: relative;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 40px rgba(77, 124, 15, 0.25);
}

.quote::before {
    content: '"';
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-xl);
    font-size: 5rem;
    color: var(--color-eco-leaf);
    line-height: 1;
    opacity: 0.5;
}

.quote p {
    font-size: var(--font-size-2xl);
    font-style: italic;
    padding-left: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.quote cite {
    display: block;
    padding-left: var(--spacing-2xl);
    font-size: var(--font-size-base);
    font-style: normal;
    opacity: 0.9;
}

/* Standards List */
.standards-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.standard-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(to right, var(--color-eco-light), var(--color-white));
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.standard-item:hover {
    border-color: var(--color-accent);
    box-shadow: 0 6px 20px rgba(132, 204, 22, 0.15);
    transform: translateY(-2px);
}

.standard-badge {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 700;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.news-item {
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-300);
}

.news-date {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.news-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.news-item h3 a {
    color: var(--color-primary);
    text-decoration: none;
}

.news-item h3 a:hover {
    text-decoration: underline;
}

.news-item p {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    margin-bottom: 0;
}

.more-link {
    margin-top: var(--spacing-xl);
}

.more-link a {
    font-weight: 600;
}

/* Tags Section */
.tags-section {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-gray-300);
    margin-top: var(--spacing-xl);
}

.tags-section h3 {
    font-size: var(--font-size-lg);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-eco-light);
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    border: 1px solid var(--color-eco-medium);
    border-radius: 20px;
}

.tag:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(27, 94, 32, 0.2);
}

/* Share Section */
.share-section {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-gray-300);
}

.share-section h3 {
    font-size: var(--font-size-lg);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-eco-light);
    color: var(--color-primary);
    border-radius: 50%;
    transition: all var(--transition-fast);
    border: 2px solid var(--color-eco-medium);
}

.share-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(27, 94, 32, 0.3);
}

.share-btn svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Sidebar
   ======================================== */

.sidebar {
    background: linear-gradient(to bottom, var(--color-eco-light), var(--color-white));
    padding: var(--spacing-3xl) 0;
    border-top: 5px solid var(--color-accent);
    position: relative;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5C30 5 25 15 25 25C25 35 30 45 30 45C30 45 35 35 35 25C35 15 30 5 30 5Z' fill='%2384cc16' fill-opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
}

.sidebar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.sidebar-block h3 {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

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

.sidebar-links li {
    border-bottom: 1px solid var(--color-gray-300);
}

.sidebar-links a {
    display: block;
    padding: var(--spacing-md) 0;
    color: var(--color-link);
    text-decoration: none;
    font-size: var(--font-size-base);
}

.sidebar-links a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, #1a2e05 100%);
    color: var(--color-white);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-light), var(--color-accent), var(--color-accent-light));
}

.footer-main {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-2xl);
}

.footer-column h4 {
    color: var(--color-white);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--color-accent);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-md);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

/* Footer Social */
.footer-social {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-radius: 50%;
    transition: all var(--transition-fast);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.social-links a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(132, 204, 22, 0.4);
}

.social-links svg {
    width: 24px;
    height: 24px;
}

/* Footer Bottom */
.footer-bottom {
    padding: var(--spacing-xl) 0;
}

.footer-bottom-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.footer-legal a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2.25rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.375rem;
        --font-size-xl: 1.25rem;
        --spacing-3xl: 3rem;
        --spacing-4xl: 4rem;
    }

    .header-top {
        display: none;
    }

    .logo-title {
        font-size: var(--font-size-xl);
    }

    .logo-subtitle {
        display: none;
    }

    .logo-icon {
        width: 44px;
        height: 44px;
    }

    .nav-primary {
        display: none;
    }

    .nav-primary.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
    }

    .nav-list li a {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .hero {
        height: auto;
        min-height: 350px;
    }

    .hero-image {
        height: 250px;
    }

    .hero-lead {
        font-size: var(--font-size-lg);
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .news-grid,
    .standards-list,
    .sidebar-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .quote p {
        font-size: var(--font-size-xl);
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }

    .search-toggle-text,
    .menu-toggle-text {
        display: none;
    }

    .search-toggle,
    .menu-toggle {
        padding: var(--spacing-sm);
    }

    .process-list li {
        padding-left: 2.5rem;
    }

    .share-buttons {
        flex-wrap: wrap;
    }
}

/* Print Styles */
@media print {

    .header,
    .nav-primary,
    .search-overlay,
    .share-section,
    .sidebar,
    .footer-social {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .hero-image {
        display: none;
    }
}

/* Focus Styles for Accessibility */
:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

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

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

    html {
        scroll-behavior: auto;
    }
}

/* ========================================
   Eco-Themed Enhancements
   ======================================== */

/* Section heading styling */
.content-block h2::after {
    content: '';
}

/* Green gradient accent for section dividers */
.content-block {
    position: relative;
}

.content-block::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.content-block:last-of-type::after {
    display: none;
}

/* Eco badge styling for cards */
.card-link {
    color: var(--color-accent-dark);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card-link::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.card:hover .card-link::after {
    transform: translateX(4px);
}

/* News items with green accents */
.news-item {
    position: relative;
    padding-left: var(--spacing-lg);
    border-left: 3px solid var(--color-eco-medium);
    border-bottom: none;
    background: linear-gradient(to right, var(--color-eco-light), transparent);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.news-item:hover {
    border-left-color: var(--color-accent);
    box-shadow: 0 4px 15px rgba(67, 160, 71, 0.1);
}

.news-date {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

/* Eco-themed scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-eco-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Green glow effect on buttons */
.search-toggle:hover,
.menu-toggle:hover {
    background: var(--color-eco-light);
    border-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(67, 160, 71, 0.2);
}

/* Sidebar links with eco styling */
.sidebar-links a {
    position: relative;
    padding-left: var(--spacing-md);
}

.sidebar-links a::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 8px;
    top: 50%;
    transform: translateY(-50%);
    transition: all var(--transition-fast);
}

.sidebar-links a:hover::before {
    content: '▶';
    color: var(--color-primary);
}

/* Breadcrumb eco styling */
.breadcrumb {
    background: linear-gradient(to right, var(--color-eco-light), var(--color-white));
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    color: var(--color-accent);
}

/* Footer column eco accents */
.footer-column li {
    position: relative;
    padding-left: var(--spacing-md);
}

.footer-column li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent-light);
}

/* Eco animation for logo */
.logo-icon {
    transition: transform var(--transition-normal);
}

.logo:hover .logo-icon {
    transform: rotate(10deg) scale(1.05);
}

/* Process list eco-enhanced */
.process-list li {
    background: linear-gradient(to right, var(--color-eco-light), transparent);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    padding-right: var(--spacing-md);
}

/* Floating leaf animation for hero */
@keyframes float-leaf {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    25% {
        transform: translateY(-10px) rotate(5deg);
    }

    50% {
        transform: translateY(-5px) rotate(-5deg);
    }

    75% {
        transform: translateY(-15px) rotate(3deg);
    }
}

.hero {
    position: relative;
    overflow: hidden;
}

/* Subtle eco pattern overlay */
.article-section {
    position: relative;
}

.article-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 20%, rgba(132, 204, 22, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(77, 124, 15, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ========================================
   Unterseiten / Subpage Styles
   ======================================== */

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--color-eco-light) 0%, var(--color-white) 100%);
    padding: var(--spacing-3xl) 0;
    border-bottom: 4px solid var(--color-accent);
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5C30 5 25 15 25 25C25 35 30 45 30 45C30 45 35 35 35 25C35 15 30 5 30 5Z' fill='%2384cc16' fill-opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
}

.page-header h1 {
    font-size: var(--font-size-4xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.page-intro {
    font-size: var(--font-size-xl);
    color: var(--color-gray-700);
    max-width: 800px;
    line-height: 1.7;
}

/* Content Article */
.content-article {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.content-article h2 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.content-article h2:first-child {
    margin-top: 0;
}

.content-article h3 {
    font-size: var(--font-size-xl);
    color: var(--color-primary-dark);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.content-article p {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-lg);
}

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

.content-article li {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.content-article ul li::marker {
    color: var(--color-accent);
}

.content-article ol li::marker {
    color: var(--color-primary);
    font-weight: 600;
}

.content-article blockquote {
    background: linear-gradient(to right, var(--color-eco-light), var(--color-white));
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.content-article blockquote p {
    font-size: var(--font-size-lg);
    font-style: italic;
    color: var(--color-primary);
    margin-bottom: 0;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(77, 124, 15, 0.3);
}

/* Container narrow for articles */
.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}