@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg: #050505;
    --bg-elevated: #0a0a0a;
    --bg-card: #0f0f0f;
    --bg-card-hover: #141414;
    --accent: #00ff88;
    --accent-secondary: #00d4ff;
    --accent-warm: #ff6b35;
    --text: #ffffff;
    --text-secondary: #888888;
    --text-muted: #555555;
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(255,255,255,0.15);
    --gradient: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    cursor: none;
}

a, button, .card, input, textarea, select {
    cursor: none;
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container { padding: 0 1.25rem; }
}

/* ========== CURSOR ========== */
.cursor {
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s, opacity 0.15s;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
}

.cursor.hover {
    transform: translate(-50%, -50%) scale(2);
    background: var(--accent);
    opacity: 0.3;
}

@media (max-width: 768px) {
    .cursor { display: none; }
}

/* Ultrawide & große Bildschirme */
@media (min-width: 1800px) {
    html { font-size: 17px; }
    .container { max-width: 1300px; }
}

@media (min-width: 2400px) {
    html { font-size: 19px; }
    .container { max-width: 1500px; }
}

/* Kleine Laptops */
@media (max-width: 1200px) {
    html { font-size: 15px; }
}

/* Tablets */
@media (max-width: 900px) {
    html { font-size: 15px; }
    .section { padding: 4rem 0; }
}

/* Handys */
@media (max-width: 600px) {
    html { font-size: 14px; }
    .section { padding: 3rem 0; }
    .container { padding: 0 1rem; }
}

/* ========== NAVIGATION ========== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.nav.scrolled {
    background: rgba(5, 5, 5, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    padding: 0.75rem 1.5rem;
    background: var(--text);
    color: var(--bg);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 100px;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--accent);
    transform: scale(1.05);
}

.nav-toggle {
    display: none;
    width: 30px;
    height: 20px;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

@media (max-width: 900px) {
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
}

/* ========== MOBILE MENU ========== */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu a {
    font-family: 'Syne', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mobile-menu a:hover {
    color: var(--accent);
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 255, 136, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--text);
    background: rgba(255,255,255,0.05);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    padding: 0.75rem 0;
}

.btn-ghost:hover {
    color: var(--accent);
}

.btn-icon {
    width: 50px;
    height: 50px;
    padding: 0;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-icon:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ========== TYPOGRAPHY ========== */
.headline-xl {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.5rem, 4vw, 5rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -2px;
}

.headline-lg {
    font-family: 'Syne', sans-serif;
    font-size: clamp(1.75rem, 3vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1px;
}

.headline-md {
    font-family: 'Syne', sans-serif;
    font-size: clamp(1.5rem, 2vw, 2.25rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.headline-sm {
    font-family: 'Syne', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.text-lg {
    font-size: 1.25rem;
    line-height: 1.7;
}

.text-md {
    font-size: 1rem;
    line-height: 1.7;
}

.text-sm {
    font-size: 0.875rem;
    line-height: 1.6;
}

.text-muted {
    color: var(--text-secondary);
}

.text-accent {
    color: var(--accent);
}

.label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
}

/* ========== CARDS ========== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

/* ========== GRID ========== */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ========== SECTIONS ========== */
.section {
    padding: 5rem 0;
}

.section-sm {
    padding: 3rem 0;
}

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

.section-header.center {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========== DIVIDER ========== */
.divider {
    height: 1px;
    background: var(--border);
    width: 100%;
}

/* ========== MARQUEE ========== */
.marquee {
    overflow: hidden;
    white-space: nowrap;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.marquee-inner {
    display: inline-flex;
    animation: marquee 30s linear infinite;
}

.marquee-item {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-muted);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.marquee-item span {
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ========== FOOTER ========== */
.footer {
    padding: 6rem 0 3rem;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1.5rem;
    max-width: 300px;
}

.footer-title {
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.footer-socials svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* ========== ANIMATIONS ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.4s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.5s; }

.stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* ========== PAGE TRANSITION ========== */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.7, 0, 0.3, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* ========== BACKGROUND ELEMENTS ========== */
.bg-glow {
    position: fixed;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.07;
    pointer-events: none;
    z-index: -1;
}

.bg-glow.green {
    background: var(--accent);
    top: -20%;
    right: -10%;
}

.bg-glow.blue {
    background: var(--accent-secondary);
    bottom: -20%;
    left: -10%;
}

/* ========== UTILITIES ========== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

.text-center { text-align: center; }
.relative { position: relative; }