/* Variable Font (Primary) */
@font-face {
    font-family: 'Martian Mono';
    src: url('./webfonts/MartianMono[wdth,wght].ttf') format('truetype-variations');
    font-weight: 200 600;
    font-style: normal;
    font-display: swap;
}

/* Fallback */
@supports not (font-variation-settings: normal) {
    @font-face {
        font-family: 'Martian Mono';
        src: url('./webfonts/MartianMono-ExtraLight.woff2') format('woff2');
        font-weight: 200;
        font-style: normal;
        font-display: swap;
    }

    @font-face {
        font-family: 'Martian Mono';
        src: url('./webfonts/MartianMono-Light.woff2') format('woff2');
        font-weight: 300;
        font-style: normal;
        font-display: swap;
    }

    @font-face {
        font-family: 'Martian Mono';
        src: url('./webfonts/MartianMono-Regular.woff2') format('woff2');
        font-weight: 400;
        font-style: normal;
        font-display: swap;
    }

    @font-face {
        font-family: 'Martian Mono';
        src: url('./webfonts/MartianMono-Medium.woff2') format('woff2');
        font-weight: 500;
        font-style: normal;
        font-display: swap;
    }

    @font-face {
        font-family: 'Martian Mono';
        src: url('./webfonts/MartianMono-SemiBold.woff2') format('woff2');
        font-weight: 600;
        font-style: normal;
        font-display: swap;
    }
}

/* CSS Custom Properties */
:root {
    --color-primary: #163b2f;
    --color-accent: #1AE100;
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.9);
    --color-border: rgba(255, 255, 255, 0.05);
    --color-focus: #5cf092;

    --font-family: 'Martian Mono', 'Martian Mono Fallback', 'Courier New', monospace;
    --font-weight-light: 220;
    --font-weight-normal: 280;
    --font-weight-medium: 480;
    --font-weight-semibold: 500;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    --container-max-width: min(1020px, 90vw);
    --content-max-width: 800px;
    --border-radius: 0.25rem;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0s;
        --transition-normal: 0s;
    }

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

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

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-block-size: 100vh;
    display: grid;
    grid-template-rows: 1fr auto;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus Management */
:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
    border-radius: var(--border-radius);
}

/* Back Button */
.back-button {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    z-index: 1000;
}

.back-button a {
    color: var(--color-accent);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    transition: opacity var(--transition-fast);
    font-size: 0.875rem;
    font-weight: var(--font-weight-normal);
}

.back-button-inline {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.back-button-inline a {
    color: var(--color-accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: var(--border-radius);
    transition: opacity var(--transition-fast);
    display: inline-block;
    font-size: 0.875rem;
    font-weight: var(--font-weight-normal);
}

.back-button-inline a:hover {
    opacity: 0.7;
}

@media (hover: hover) {
    .back-button a:hover {
        opacity: 0.7;
    }
}

/* Language Selector */
.language-selector {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    z-index: 1000;
}

.language-selector nav {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-normal);
}

.language-selector a {
    color: var(--color-accent);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    transition: opacity var(--transition-fast);
}

/* Layout */
.main-container {
    max-inline-size: var(--container-max-width);
    margin-inline: auto;
    padding-inline: var(--spacing-sm);
    display: grid;
    place-items: center;
    min-block-size: calc(100vh - 8rem);
}

.content {
    max-inline-size: var(--content-max-width);
    inline-size: 100%;
    padding-block: var(--spacing-xl);
}

/* Typography */
.main-heading {
    font-size: clamp(1.25rem, 3vw, 2.25rem);
    font-weight: var(--font-weight-medium);
    margin-block-end: var(--spacing-xl);
    margin-inline-start: -0.05em;
    letter-spacing: -0.02em;
}

.content-section {
    margin-block-end: 2.5rem;
}

.content-section:last-of-type {
    margin-block-end: 0;
}

.section-heading {
    font-size: clamp(0.9375rem, 2vw, 1.25rem);
    font-weight: var(--font-weight-semibold);
    margin-block-end: 0.2rem;
    letter-spacing: 0.025em;
}

.content-text {
    font-size: clamp(0.9375rem, 2vw, 1.25rem);
    font-weight: var(--font-weight-light);
    line-height: 1.75;
    opacity: 0.9;
    margin-block-end: 1rem;
}

.content-text:last-child {
    margin-block-end: 0;
}

/* Impressum / Legaltext */
.legaltext p,
.legaltext li,
.legaltext h3 {
    font-size: 0.85em;
    line-height: 1.6;
    opacity: 0.95;
}

.legaltext h3 {
    font-weight: var(--font-weight-semibold);
    margin-block-start: 1rem;
    margin-block-end: 0rem;
}

.legaltext h4 {
    font-size: 0.85em;
    font-weight: var(--font-weight-semibold);
    margin-block-start: 1rem;
    margin-block-end: 0.25rem;
    line-height: 1.6;
    opacity: 0.95;
}

.legaltext p {
    font-weight: var(--font-weight-light);
    line-height: 1.75;
    margin-block-start: 0rem;
    margin-block-end: 0.5rem;
}

.legaltext .legal-source {
    font-size: 0.75em;
    line-height: 1.5;
    opacity: 0.85;
    margin-top: 2rem;
}

.legaltext .legal-source a {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-underline-offset: 0.15rem;
    font-weight: var(--font-weight-normal);
    transition: opacity var(--transition-fast);
}


/* Navigation Links */
.primary-navigation {
    margin-block-start: 3.75rem;
}

.primary-navigation ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.primary-navigation a {
    font-weight: var(--font-weight-normal);
    color: var(--color-accent);
    text-decoration: none;
    font-size: clamp(0.9375rem, 2vw, 1.25rem);
    padding: 0.5rem 0;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    display: inline-block;
}

@media (hover: hover) {
    .primary-navigation a:hover:not([aria-current="page"]) {
        opacity: 0.7;
        text-decoration: underline;
        text-decoration-style: dotted;
        text-underline-offset: 0.33em;
    }
}

.primary-navigation a:active {
    transform: translateY(1px);
}

/* Footer */
.site-footer {
    width: var(--container-max-width);
}

.footer-content {
    padding-block: var(--spacing-md);
    border-block-start: 4px dotted var(--color-border);
    margin-block-start: auto;
    max-inline-size: var(--content-max-width);
    margin-inline: auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-info {
    font-size: 0.8125rem;
    font-weight: var(--font-weight-normal);
    vertical-align: top;
}

.footer-navigation ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.footer-navigation a {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.8125rem;
    font-weight: var(--font-weight-normal);
    vertical-align: top;
    padding: 0rem;
    border-radius: var(--border-radius);
    transition: opacity var(--transition-fast);
}

@media (hover: hover) {
    .footer-navigation a:hover:not([aria-current="page"]) {
        opacity: 0.7;
    }
}

/* Einheitliches Styling für aktive Links */
.language-selector a[aria-current="page"],
.footer-navigation a[aria-current="page"],
.primary-navigation a[aria-current="page"] {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.5rem;
}

/* Responsive Design */
@media (max-width: 48rem) {
    .language-selector {
        top: var(--spacing-xs);
        right: var(--spacing-xs);
    }

    .main-container {
        min-block-size: calc(100vh - 6rem);
        padding-block: var(--spacing-md);
        padding-right: 1.25rem;
    }

    .content {
        max-inline-size: 94vw;
        padding-right: 2rem;
        justify-self: stretch;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        padding-right: 2rem;
    }

    .footer-navigation ul {
        gap: var(--spacing-md);
    }
}

@media (max-width: 30rem) {
    .footer-navigation ul {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .primary-navigation ul {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-accent: #00ff00;
        --color-focus: #00ff00;
    }
}

/* Print styles */
@media print {
    .language-selector,
    .skip-link {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .primary-navigation a,
    .footer-navigation a {
        color: black;
        text-decoration: underline;
    }
}

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0s;
        --transition-normal: 0s;
    }

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