/* Funnel Display - Self-hosted Font */
@font-face {
    font-family: 'Funnel Display';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/funnel-display-v3-latin-regular.woff2') format('woff2');
}

@font-face {
    font-family: 'Funnel Display';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/funnel-display-v3-latin-500.woff2') format('woff2');
}

@font-face {
    font-family: 'Funnel Display';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/funnel-display-v3-latin-600.woff2') format('woff2');
}

@font-face {
    font-family: 'Funnel Display';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/funnel-display-v3-latin-700.woff2') format('woff2');
}

@font-face {
    font-family: 'Funnel Display';
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: url('../fonts/funnel-display-v3-latin-800.woff2') format('woff2');
}

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

:root {
    --color-background: #FFFFFF;
    --color-foreground: #0A0E27;
    --color-accent: #0f4057;
    --color-muted: #5B6E7C;
    --color-border: #E0E4E8;
    --color-secondary: #F5F7F9;
    --font-display: 'Funnel Display', sans-serif;
    --font-body: system-ui, -apple-system, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-foreground);
    background-color: var(--color-background);
}

/* Fix fade-in flash - hide elements before JS loads */
.content-block,
.visual-block {
    opacity: 0;
}

.content-block {
    transform: translateY(30px);
}

/* Once JS sets up transitions, they will animate */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.02em;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1050px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    padding: 3rem 2rem;
    background-color: var(--color-background);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    flex-shrink: 0;
    color: var(--color-foreground);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Hero Section */
.hero {
    padding: 5rem 2rem 8rem;
    background-color: var(--color-background);
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-background-svg {
    width: 100%;
    height: 100%;
    opacity: 0.15;
    color: var(--color-muted);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 280px;
    }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 4.5rem);
    margin-bottom: 3rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-muted);
    max-width: 48rem;
    margin-bottom: 2rem;
}

.hero-visual {
    display: none;
}

@media (min-width: 1024px) {
    .hero-visual {
        display: block;
        width: 280px;
        height: 280px;
    }
}

.knotenpunkt-diagram {
    width: 100%;
    height: 100%;

    .grafic {
        transform-origin: center;
        color: var(--color-foreground);
        animation: rotate 30s linear infinite;
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* CTA Button */
.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--color-accent);
    color: var(--color-background);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid var(--color-foreground);
    cursor: pointer;
    transition: all 0.3s ease;

    &.secondary {
        border-color: var(--color-accent);
        color: var(--color-accent);
        background-color: var(--color-secondary);
    }
}

.cta-button:hover {
    background-color: var(--color-foreground);
    color: var(--color-background);
}

/* Section Styles */
.section {
    padding: 6rem 2rem;
}

.section-alt {
    background-color: var(--color-secondary);
}

.section-marker {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

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

.section-title {
    font-size: clamp(3rem, 6vw, 4rem);
    margin-bottom: 2.5rem;
}

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

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

@media (min-width: 1024px) {
    .two-column {
        grid-template-columns: 1fr 350px;
        gap: 2rem;
    }

    .two-column.reverse {
        grid-template-columns: 350px 1fr;
    }
}

.content-block {
    max-width: 580px;
}

.two-column.reverse .content-block {
    margin-left: auto;
}

.text-content {
    font-size: 1.125rem;
    color: var(--color-muted);
    line-height: 1.7;
}

.text-content p {
    margin-bottom: 1.5rem;
}

.text-emphasis {
    font-weight: 600;
    color: var(--color-foreground) !important;
}

.visual-block {
    width: 100%;
    max-width: 350px;
}

.architectural-diagram {
    width: 100%;
    height: 700px;
    overflow: visible;
}

.architectural-diagram svg {
    width: 100%;
    height: 100%;
}

/* Ecosystem Section */
.ecosystem-section {
    padding: 8rem 2rem;
}

.ecosystem-header {
    text-align: center;
    margin-bottom: 4rem;
}

.ecosystem-title {
    font-size: clamp(3rem, 6vw, 4rem);
    margin-bottom: 1.5rem;
}

.ecosystem-intro {
    font-size: 1.125rem;
    color: var(--color-muted);
    max-width: 48rem;
    margin: 0 auto;
}

/* Lifecycle Container */
.lifecycle-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.lifecycle-line {
    display: none;
}

@media (min-width: 1024px) {
    .lifecycle-line {
        display: block;
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 2px;
        background-color: var(--color-foreground);
        transform: translateX(-50%);
    }
}

.lifecycle-item {
    position: relative;
    margin-bottom: 4rem;
}

@media (min-width: 1024px) {
    .lifecycle-item {
        padding-right: 55%;
    }

    .lifecycle-item.right {
        padding-right: 0;
        padding-left: 55%;
    }
}

.lifecycle-dot {
    display: none;
}

@media (min-width: 1024px) {
    .lifecycle-dot {
        display: block;
        position: absolute;
        top: 2rem;
        left: 50%;
        width: 16px;
        height: 16px;
        background-color: var(--color-accent);
        border: 2px solid var(--color-foreground);
        transform: translateX(-50%);
        z-index: 10;
    }
}

.lifecycle-connector {
    display: none;
}

@media (min-width: 1024px) {
    .lifecycle-connector {
        display: block;
        position: absolute;
        top: 2rem;
        height: 2px;
        background-color: var(--color-foreground);
        transform: translateY(7px);
        left: 0;
        right: 50%;
    }

    .lifecycle-connector.right {
        left: 50%;
        right: 0;
    }
}

/* Accordion Styles */
.accordion {
    border: 1px solid var(--color-border);
    background-color: var(--color-background);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    text-align: left;
    background-color: var(--color-background);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    position: relative;
}

.accordion-header:hover {
    background-color: var(--color-accent);
}

.accordion-header:hover .accordion-title,
.accordion-header:hover .accordion-subtitle,
.accordion-header:hover .accordion-default,
.accordion-header:hover .accordion-icon {
    color: var(--color-background);
}

.accordion-indicator {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--color-accent);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s ease;
}

.accordion.active .accordion-indicator {
    transform: scaleY(1);
}

.accordion-header:hover .accordion-indicator {
    background-color: var(--color-background);
}

.accordion-content-wrapper {
    flex: 1;
}

.accordion-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.accordion-subtitle {
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-accent);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.accordion-default {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-muted);
    margin-top: 1rem;
    transition: color 0.3s ease;
}

.accordion-icon {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.accordion.active .accordion-icon {
    transform: rotate(90deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.accordion.active .accordion-body {
    max-height: 1000px;
    border-top: 1px solid var(--color-border);
}

.accordion-expanded {
    padding: 2rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-muted);
}

.accordion-expanded p {
    margin-bottom: 1rem;
}

/* Updates Section */
.updates-section {
    background-color: var(--color-accent);
    color: var(--color-background);
    display: none;
}

.updates-header {
    margin-bottom: 4rem;
}

.updates-intro {
    font-size: 1.125rem;
    max-width: 580px;
    opacity: 0.9;
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.news-tile {
    border: 1px solid var(--color-background);
    background-color: var(--color-background);
    color: var(--color-foreground);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.news-tile:hover {
    transform: translateY(-8px);
}

.news-image {
    aspect-ratio: 4/3;
    background-color: var(--color-secondary);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-icon {
    position: relative;
}

.icon-nested {
    width: 96px;
    height: 96px;
    border: 2px solid var(--color-foreground);
    position: relative;

    &::after {
        content: '';
        position: absolute;
        width: 64px;
        height: 64px;
        border: 2px solid var(--color-accent);
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    &.rotate {
        transform: rotate(45deg);
    }

    &.circle {
        border-radius: 96px;

        &:after {
            border-radius: 96px;
        }
    }
}

.news-content {
    padding: 1.5rem;
}

.news-date {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.news-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.2;
}

.news-text {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.6;
}

/* Initiative Section */
.initiative-section {
    background-color: var(--color-foreground);
    background-color: var(--color-accent);
    color: var(--color-background);
    padding: 6rem 2rem;
}

.initiative-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5rem;
    align-items: center;
    margin-bottom: 8rem;
}

.initiative-grid:last-child {
    margin-bottom: 0;
}

@media (min-width: 1024px) {
    .initiative-grid {
        grid-template-columns: 1fr 1fr;
    }

    .initiative-grid.reverse {
        direction: rtl;
    }

    .initiative-grid.reverse > * {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .initiative-grid:last-child {
        .initiative-visual {
            order: 2;
        }
    }
}

.initiative-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.initiative-content {
    font-size: 1.125rem;
    line-height: 1.7;
    opacity: 0.8;
}

.initiative-content .text-emphasis {
    opacity: 1;
    color: var(--color-background) !important;
}

.initiative-visual {
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.initiative-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Join Section */
.join-section {
    padding: 8rem 2rem;
    text-align: center;
}

.join-title {
    font-size: clamp(3rem, 6vw, 4rem);
    margin-bottom: 3rem;
}

.join-text {
    font-size: 1.25rem;
    color: var(--color-muted);
    max-width: 42rem;
    margin: 0 auto 3rem;
}

.join-emphasis {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-foreground) !important;
}

.join-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

@media (max-width: 768px) {
    .join-buttons {
        flex-direction: column;
    }
}

/* Footer */
.footer {
    padding: 3rem 2rem;
}

.footer-main {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .footer-main {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-links,
.footer-copyright {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
}

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

.footer-social a {
    color: var(--color-muted);
    transition: color 0.3s ease;
}

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

.footer-logo {
    display: flex;
    justify-content: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.footer-logo a {
    opacity: 0.6;
    transition: opacity 0.3s ease;
    color: var(--color-foreground);
}

.footer-logo a:hover {
    opacity: 1;
}

/* Color Toggle Button */
.color-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 1000;
}

.color-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.color-toggle:active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .color-toggle {
        top: 10px;
        right: 10px;
        padding: 10px 20px;
        font-size: 12px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.slide-in-right {
    animation: slideInFromRight 0.8s ease-out;
}

.slide-in-left {
    animation: slideInFromLeft 0.8s ease-out;
}

/* Responsive Typography */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 3rem;
    }

    .ecosystem-title {
        font-size: 3rem;
    }
}

/* Imprint Page Styles */
.imprint-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-foreground);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.back-link svg {
    width: 24px;
    height: 24px;
}

.imprint-section {
    padding: 4rem 2rem;
    min-height: 60vh;
}

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

.imprint-content h1 {
    font-size: 3rem;
    margin-bottom: 2rem;
    font-family: var(--font-display);
}

.imprint-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-family: var(--font-display);
    font-weight: 700;
}

.imprint-content p {
    line-height: 1.8;
    color: var(--color-muted);
    margin-bottom: 1rem;
}

.imprint-content a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.imprint-content a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* CTA Buttons Container */
.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
    }
}

.cta-button-secondary {
    background-color: transparent;
    color: var(--color-foreground);
    border: 2px solid var(--color-foreground);
}

.cta-button-secondary:hover {
    background-color: var(--color-foreground);
    color: var(--color-background);
}

/* Order classes for flexbox */
.order-1 {
    order: 1;
}

.order-2 {
    order: 2;
}

@media (max-width: 1023px) {
    .order-1 {
        order: 0;
    }

    .order-2 {
        order: 0;
    }
}

/* COMCODE Logo */
.comcode-logo {
    width: 128px;
    height: auto;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.footer-logo a:hover .comcode-logo {
    opacity: 1;
}