:root {
    --color-neutral-dark: hsl(210 100% 15%);
    --color-neutral-accent: hsl(43 41% 41%);
    --color-bg-white: hsl(0 0% 100%);
    --color-bg-light: hsl(210 30% 96%);

    --color-projekt: hsl(260 85% 60%);
    --color-projekt-light: hsl(260 85% 80%);
    --color-projekt-dark: hsl(260 85% 40%);

    --color-staat: hsl(190 85% 45%);
    --color-staat-light: hsl(190 85% 65%);
    --color-staat-dark: hsl(190 85% 25%);

    --color-portale: hsl(145 85% 55%);
    --color-portale-light: hsl(145 85% 75%);
    --color-portale-dark: hsl(145 85% 35%);

    --text-primary: hsl(210 20% 15%);
    --text-secondary: hsl(210 15% 45%);
    --text-light: hsl(210 10% 60%);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--color-bg-white);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    margin: 0;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    line-height: 1.7;
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

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

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
}

.section-subtitle {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    font-weight: 600;
}

.section-title {
    color: var(--text-primary);
}

.section-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.section-link:hover {
    color: var(--color-neutral-dark);
}

.vision-section {
    background-color: var(--color-bg-light);
}

.vision-content {
    max-width: 800px;
    margin: 0 auto;
}

.vision-quote {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    line-height: 1.8;
    color: var(--text-primary);
    text-align: center;
    font-weight: 400;
}

.features-section {
    background-color: var(--color-bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

.feature-card {
    background: var(--color-bg-white);
    border: 1px solid hsl(210 20% 90%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.card-projekt .feature-icon {
    background-color: var(--color-projekt-light);
    color: var(--color-projekt-dark);
}

.card-staat .feature-icon {
    background-color: var(--color-staat-light);
    color: var(--color-staat-dark);
}

.card-portale .feature-icon {
    background-color: var(--color-portale-light);
    color: var(--color-portale-dark);
}

.feature-title {
    color: var(--text-primary);
    font-size: 1.5rem;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.feature-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: auto;
}

.card-projekt .feature-link:hover {
    color: var(--color-projekt);
}

.card-staat .feature-link:hover {
    color: var(--color-staat);
}

.card-portale .feature-link:hover {
    color: var(--color-portale);
}

.news-preview-section {
    background-color: var(--color-bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

.news-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: all 0.3s ease;
}

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

.news-date {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.news-title {
    color: var(--text-primary);
    font-size: 1.25rem;
}

.news-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
}

.news-link {
    color: var(--color-neutral-dark);
    font-weight: 500;
    margin-top: auto;
}

.news-link:hover {
    color: var(--color-neutral-accent);
}

.cta-section {
    background-color: var(--color-bg-white);
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

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

.cta-card {
    background: linear-gradient(135deg, var(--color-neutral-dark), hsl(210 100% 20%));
    color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    text-align: center;
}

.cta-title {
    font-size: 1.5rem;
    color: white;
}

.cta-description {
    color: rgba(255, 255, 255, 0.9);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: hsl(43 41% 50%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.partners-section {
    background-color: var(--color-bg-light);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    align-items: center;
}

@media (max-width: 768px) {
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.partner-logo {
    background: var(--color-bg-white);
    border: 1px solid hsl(210 20% 90%);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    color: var(--text-light);
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    border-color: var(--color-neutral-accent);
    transform: scale(1.05);
}

.main-footer {
    background-color: var(--color-neutral-dark);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--color-neutral-accent);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}