/* Hypermoderne CSS für Sinthex - Moderne KI-Softwareentwicklung */

/* Basis Reset & Typografie */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background: linear-gradient(45deg, #f9fafb, #ffffff, #f0f9ff, #ffffff);
    background-size: 400% 400%;
    background-attachment: fixed;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    position: relative;
    z-index: 10;
}

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

@media (max-width: 768px) {
    .nav-brand {
        flex-direction: column;
        gap: 1rem;
    }
}

.logo {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-text {
    color: #0066ff;
}

/* Hauptinhalt */
.main-content {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section {
    position: relative;
    text-align: center;
    padding: 4rem 0;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
    }
}

/* Gradient Orbs (inspiriert vom Design) */
.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.7;
    z-index: -1;
    animation: float 6s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(0, 198, 255, 0.3), rgba(0, 114, 255, 0.2));
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

@media (max-width: 768px) {
    .gradient-orb-1 {
        width: 200px;
        height: 200px;
        top: -50px;
        right: -50px;
    }
}

.gradient-orb-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.3));
    bottom: -80px;
    left: -80px;
    animation-delay: 3s;
}

@media (max-width: 768px) {
    .gradient-orb-2 {
        width: 150px;
        height: 150px;
        bottom: -40px;
        left: -40px;
    }
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 102, 255, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #0066ff;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.1);
}

.badge-icon {
    font-size: 1rem;
}

/* Haupttitel */
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(45deg, #00c6ff, #0072ff, #667eea, #764ba2, #c471ed, #f64f59, #c471ed, #667eea, #00c6ff);
    background-size: 600% 600%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientTextFlow 15s ease-in-out infinite;
    position: relative;
}

.hero-description {
    font-size: 1.25rem;
    color: #4b5563;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .hero-description {
        font-size: 1.125rem;
        margin-bottom: 2rem;
    }
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.feature-item {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(229, 231, 235, 0.5);
    border-radius: 20px;
    backdrop-filter: blur(15px);
    transition: all 0.3s ease;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.1);
    border-color: rgba(0, 102, 255, 0.3);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.feature-item p {
    color: #4b5563;
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    margin-top: 4rem;
}

.curiosity-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 2rem;
}

.availability-section {
    margin-top: 3rem;
}

.availability-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    margin: 0;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 102, 255, 0.2);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.08);
    text-align: center;
}

.availability-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.availability-text {
    font-size: 0.95rem;
    color: #4b5563;
    line-height: 1.6;
}

.availability-text strong {
    color: #1f2937;
    font-weight: 600;
}

.availability-date {
    color: #0066ff;
    font-weight: 600;
    background: linear-gradient(135deg, #0066ff, #4d8aff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

@media (max-width: 768px) {
    .tech-stack {
        gap: 0.5rem;
    }
    
    .availability-notice {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.5rem;
    }
    
    .availability-text {
        font-size: 0.9rem;
    }
}

.tech-tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 198, 255, 0.1));
    border: 1px solid rgba(0, 102, 255, 0.2);
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #0066ff;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 198, 255, 0.2));
}

/* Footer */
.footer {
    margin-top: 8rem;
    padding: 3rem 0 2rem;
    border-top: 1px solid rgba(229, 231, 235, 0.5);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.footer-content {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .footer-content {
        justify-content: flex-start;
    }
}

.footer-logo {
    display: block;
    margin-bottom: 0.5rem;
}

.footer-logo-img {
    height: 32px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    opacity: 0.9;
}

.footer-tagline {
    color: #4b5563;
    font-size: 0.9rem;
}

.impressum h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.contact-info p {
    margin-bottom: 0.25rem;
    color: #4b5563;
    font-size: 0.9rem;
}

.contact-info strong {
    color: #1f2937;
}

.contact-info a {
    color: #0066ff;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.contact-info a:hover {
    opacity: 0.8;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(229, 231, 235, 0.3);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }
}

.footer-bottom p {
    color: #6b7280;
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-link {
    color: #6b7280;
    font-size: 0.875rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #0066ff;
}

.footer-separator {
    color: #d1d5db;
}

/* Animationen */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-10px) rotate(1deg);
    }
    66% {
        transform: translateY(5px) rotate(-1deg);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    25% {
        background-position: 100% 50%;
    }
    50% {
        background-position: 100% 100%;
    }
    75% {
        background-position: 0% 100%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes gradientTextFlow {
    0% {
        background-position: 0% 50%;
    }
    15% {
        background-position: 25% 25%;
    }
    30% {
        background-position: 70% 40%;
    }
    45% {
        background-position: 100% 60%;
    }
    60% {
        background-position: 85% 85%;
    }
    75% {
        background-position: 40% 90%;
    }
    90% {
        background-position: 15% 70%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Rechtliche Seiten (Impressum/Datenschutz) */
.legal-section {
    position: relative;
    padding: 2rem 0;
    min-height: 80vh;
}

.legal-header {
    text-align: center;
    margin-bottom: 3rem;
}

.legal-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.legal-subtitle {
    font-size: 1.125rem;
    color: #4b5563;
}

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

.legal-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(229, 231, 235, 0.5);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.05);
}

.legal-card h2 {
    color: #1f2937;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(0, 102, 255, 0.1);
}

.legal-card h3 {
    color: #374151;
    font-size: 1rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem 0;
}

.legal-card p {
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.legal-card ul {
    color: #4b5563;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-card li {
    margin-bottom: 0.5rem;
}

.legal-card a {
    color: #0066ff;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.legal-card a:hover {
    opacity: 0.8;
}

.back-link {
    text-align: center;
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #0066ff, #4d8aff);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.2);
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.3);
}

/* Logo als Link */
.logo {
    text-decoration: none;
    color: inherit;
}

.footer-link {
    text-decoration: none;
    color: inherit;
}

.footer-link:hover {
    color: #0066ff;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 25px;
    padding: 0.4rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 102, 255, 0.15);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.08);
}

.language-switcher .lang-btn {
    border: none;
    background: transparent;
    color: #6b7280;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 60px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.language-switcher .lang-btn .flag-svg {
    width: 18px;
    height: 12px;
    border-radius: 2px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
    transition: transform 0.2s ease;
}

.language-switcher .lang-btn:hover .flag-svg {
    transform: scale(1.1);
}

.language-switcher .lang-btn:hover {
    background: rgba(0, 102, 255, 0.1);
    color: #0066ff;
    transform: translateY(-1px);
    box-shadow: 0 2px 10px rgba(0, 102, 255, 0.2);
}

.language-switcher .lang-btn.active {
    background: linear-gradient(135deg, #0066ff, #4d8aff);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.language-switcher .lang-btn.active:hover {
    background: linear-gradient(135deg, #0052cc, #3d7aff);
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .language-switcher {
        order: -1;
        align-self: center;
    }
    
    .language-switcher .lang-btn {
        min-width: 50px;
        padding: 0.4rem 0.7rem;
        font-size: 0.8rem;
    }
    
    .language-switcher .lang-btn .flag-svg {
        width: 16px;
        height: 10px;
    }
}

/* Responsive Anpassungen */
@media (max-width: 1200px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .footer {
        margin-top: 4rem;
        padding: 2rem 0 1rem;
    }
    
    .legal-card {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .legal-header {
        margin-bottom: 2rem;
    }
    
    .feature-item {
        min-height: auto;
    }
}

/* Client Logos Section */
.clients-section {
    margin-top: 4rem;
    padding: 2rem 0;
}

.clients-header {
    text-align: center;
    margin-bottom: 2rem;
}

.clients-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    opacity: 0.8;
}

.clients-logos {
    overflow: hidden;
    padding: 1rem 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.02) 0%, 
        rgba(255, 255, 255, 0.01) 100%);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.logos-track {
    display: flex;
    align-items: center;
    animation: scroll-logos 30s linear infinite;
    width: calc(200% + 2rem); /* Double width for seamless loop */
    gap: 3rem;
}

.client-link {
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.client-logo {
    height: 60px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.2) contrast(0.8);
    transition: all 0.3s ease;
    flex-shrink: 0;
    opacity: 0.7;
    display: block;
}

.client-link:hover .client-logo {
    filter: grayscale(0%) brightness(1) contrast(1);
    opacity: 1;
    transform: scale(1.1);
}

.client-link:focus {
    outline: 2px solid rgba(0, 102, 255, 0.5);
    outline-offset: 4px;
    border-radius: 8px;
}

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

/* Pause animation on hover */
.clients-logos:hover .logos-track {
    animation-play-state: paused;
}

/* Responsive adjustments for client logos */
@media (max-width: 768px) {
    .clients-section {
        margin-top: 3rem;
        padding: 1.5rem 0;
    }
    
    .clients-header h3 {
        font-size: 1.2rem;
    }
    
    .client-logo {
        height: 40px;
        max-width: 80px;
    }
    
    .logos-track {
        gap: 2rem;
        animation-duration: 25s;
    }
}

@media (max-width: 480px) {
    .client-logo {
        height: 35px;
        max-width: 70px;
    }
    
    .logos-track {
        gap: 1.5rem;
        animation-duration: 20s;
    }
}

/* Kontakt-Button Sektion */
.contact-section {
    margin-top: 4rem;
    padding: 3rem 0;
    text-align: center;
    background: linear-gradient(135deg, 
        rgba(0, 102, 255, 0.02) 0%, 
        rgba(255, 255, 255, 0.05) 100%);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        transparent 0%, 
        rgba(0, 102, 255, 0.03) 50%, 
        transparent 100%);
    pointer-events: none;
}

.contact-content {
    position: relative;
    z-index: 2;
}

.contact-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #1f2937, #0066ff);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    opacity: 0.8;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #0066ff, #0052cc);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.25);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    min-width: 200px;
    justify-content: center;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    transition: left 0.6s;
}

.contact-btn:hover::before {
    left: 100%;
}

.contact-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 102, 255, 0.35);
    background: linear-gradient(135deg, #0052cc, #0066ff);
}

.contact-btn:active {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
}

.contact-btn-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.contact-btn:hover .contact-btn-icon {
    transform: scale(1.1);
}

.contact-btn-text {
    font-weight: 600;
    letter-spacing: 0.02em;
}

.contact-btn-arrow {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
    font-weight: bold;
}

.contact-btn:hover .contact-btn-arrow {
    transform: translateX(3px);
}

/* Responsive Anpassungen für Kontakt-Button */
@media (max-width: 768px) {
    .contact-section {
        margin-top: 3rem;
        padding: 2rem 1rem;
        border-radius: 20px;
    }
    
    .contact-title {
        font-size: 1.6rem;
    }
    
    .contact-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .contact-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        min-width: 180px;
    }
}

@media (max-width: 480px) {
    .contact-section {
        margin-top: 2rem;
        padding: 1.5rem 0.75rem;
        border-radius: 16px;
    }
    
    .contact-title {
        font-size: 1.4rem;
    }
    
    .contact-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.25rem;
    }
    
    .contact-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
        min-width: 160px;
        gap: 0.5rem;
    }
}