/* === Variables === */
:root {
    --color-bg: #000;
    --color-text: #fff;
    --color-accent: #a51b1b;
    --color-accent-hover: #c42020;
    --color-gray: #888;
    --color-gray-dark: #1a1a1a;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --header-height: 80px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* === Container === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Header === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    height: var(--header-height);
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 45px;
    width: auto;
}

/* === Navigation === */
.nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
    position: relative;
}

.nav-list a:not(.btn):hover {
    color: var(--color-accent);
}

.nav-list a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.nav-list a:not(.btn):hover::after {
    width: 100%;
}

/* === Mobile Menu Toggle === */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--header-height) 24px 60px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.95) 100%),
        url('https://images.unsplash.com/photo-1603584173870-7f23fdae1b7a?w=1920&q=80') center/cover no-repeat;
    z-index: -1;
}

/* === Animated Gradient Overlay === */
.hero-gradient {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(165, 27, 27, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(165, 27, 27, 0.06) 0%, transparent 50%);
    animation: pulse-gradient 8s ease-in-out infinite;
}

@keyframes pulse-gradient {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

/* === Horizontal Moving Lines === */
.hero-lines {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.hero-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(165, 27, 27, 0.7), rgba(165, 27, 27, 0.7), transparent);
    opacity: 0.55;
    animation: line-move linear infinite;
}

@keyframes line-move {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100vw);
    }
}


.hero-content {
    max-width: 900px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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


.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-tagline {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 40px;
    letter-spacing: -0.02em;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* === Services Section === */
.section-services {
    background: var(--color-gray-dark);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-intro {
    color: var(--color-gray);
    font-size: 1.1rem;
    line-height: 1.7;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 40px 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(165, 27, 27, 0.3);
    transform: translateY(-5px);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(165, 27, 27, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all var(--transition);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
}

.service-card:hover .service-icon {
    background: var(--color-accent);
}

.service-card:hover .service-icon svg {
    color: var(--color-text);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.service-card p {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.95rem;
    transition: gap var(--transition);
}

.service-link svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}

.service-link:hover {
    gap: 12px;
}

.service-link:hover svg {
    transform: translateX(4px);
}

.section-cta {
    text-align: center;
    margin-top: 50px;
}

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

@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 32px 24px;
    }
}

/* === About Section === */
.section-about {
    background: var(--color-bg);
    overflow: hidden;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 16px;
    position: relative;
    z-index: 2;
}

.about-image-accent {
    position: absolute;
    top: 30px;
    left: 30px;
    right: -30px;
    bottom: -30px;
    border: 2px solid var(--color-accent);
    border-radius: 16px;
    z-index: 1;
    opacity: 0.3;
}

.about-content {
    padding-right: 20px;
}

.about-label {
    display: inline-block;
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.about-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 24px;
    line-height: 1.2;
}

.about-content p {
    color: var(--color-gray);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-box {
    background: var(--color-gray-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px 20px;
    text-align: center;
    align-items: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--color-gray);
    font-size: 0.9rem;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .about-image {
        order: -1;
    }

    .about-image img {
        height: 350px;
    }

    .about-image-accent {
        top: 20px;
        left: 20px;
        right: -15px;
        bottom: -15px;
    }

    .about-content {
        padding-right: 0;
    }
}

@media (max-width: 640px) {
    .about-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .stat {
        flex: 1;
        min-width: 100px;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* === Contact Section === */
.section-contact {
    background: var(--color-gray-dark);
}

.section-label {
    display: inline-block;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.contact-header {
    text-align: center;
    margin-bottom: 50px;
}

.contact-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 16px;
}

.contact-header p {
    color: var(--color-gray);
    font-size: 1.1rem;
}

.contact-row {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-item span,
.contact-item a {
    font-size: 1rem;
    color: var(--color-text);
}

.contact-item a {
    transition: color var(--transition);
}

.contact-item a:hover {
    color: var(--color-accent);
}

.konfigurator-section {
    margin-top: 50px;
}

@media (max-width: 768px) {
    .contact-row {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }
}

/* === Reviews Section === */
.section-reviews {
    background: var(--color-bg);
}

.section-reviews .section-header {
    margin-bottom: 40px;
}

/* Trustindex Widget Style */
.ti-widget {
    display: flex;
    background: var(--color-gray-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
}

.ti-summary {
    flex: 0 0 280px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.ti-logo svg {
    width: 50px;
    height: 50px;
    margin-bottom: 16px;
}

.ti-rating-text {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.ti-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
}

.ti-star {
    color: #FBBC05;
    font-size: 1.5rem;
}

.ti-based {
    color: var(--color-gray);
    font-size: 0.9rem;
}

.ti-based strong {
    color: var(--color-text);
}

.ti-reviews-slider {
    flex: 1;
    display: flex;
    gap: 24px;
    padding: 30px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.ti-reviews-slider::-webkit-scrollbar {
    display: none;
}

.ti-review {
    flex: 0 0 320px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 24px;
    scroll-snap-align: start;
}

.ti-review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.ti-avatar {
    width: 44px;
    height: 44px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
}

.ti-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ti-name {
    font-weight: 600;
}

.ti-date {
    font-size: 0.8rem;
    color: var(--color-gray);
}

.ti-review-stars {
    color: #FBBC05;
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.ti-verified {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: #34A853;
    margin-bottom: 12px;
}

.ti-verified svg {
    width: 14px;
    height: 14px;
}

.ti-text {
    color: var(--color-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

@media (max-width: 900px) {
    .ti-widget {
        flex-direction: column;
    }

    .ti-summary {
        flex: none;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 30px;
    }

    .ti-reviews-slider {
        padding: 20px;
    }

    .ti-review {
        flex: 0 0 280px;
    }
}

/* === Map === */
.map-container {
    width: 100%;
    height: 450px;
    position: relative;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    filter: grayscale(100%) contrast(1.1);
    transition: filter var(--transition);
}

.map-container:hover iframe {
    filter: grayscale(50%) contrast(1.05);
}

/* === Konfigurator === */
.konfigurator-wrapper {
    width: 100%;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

#tuningbase-konfigurator {
    background: var(--color-gray-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
}

/* === Scroll Indicator === */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    position: relative;
}

.hero-scroll-indicator span::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(16px); }
}

/* === Sections === */
.section {
    padding: 100px 24px;
}

.section h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--color-gray);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

/* === Page Content (Unterseiten) === */
.page-content {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
    min-height: 100vh;
}

.page-content h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 16px;
}

.page-subtitle {
    color: var(--color-gray);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

/* === Active Nav Link === */
.nav-list a.active:not(.btn) {
    color: var(--color-accent);
}

.nav-list a.active:not(.btn)::after {
    width: 100%;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        padding: 24px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: 24px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-lg {
        width: 100%;
        max-width: 300px;
    }
}

/* === Footer === */
.footer {
    background: var(--color-gray-dark);
    padding: 60px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--color-gray);
    font-size: 14px;
    line-height: 1.7;
}

.footer-nav h4,
.footer-legal h4,
.footer-contact h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    color: var(--color-text);
}

.footer-nav ul li,
.footer-legal ul li,
.footer-contact ul li {
    margin-bottom: 10px;
}

.footer-nav ul a,
.footer-legal ul a,
.footer-contact ul a {
    color: var(--color-gray);
    font-size: 14px;
    transition: color var(--transition);
}

.footer-nav ul a:hover,
.footer-legal ul a:hover,
.footer-contact ul a:hover {
    color: var(--color-accent);
}

.footer-contact ul li {
    color: var(--color-gray);
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: var(--color-gray);
    font-size: 13px;
}

/* Footer Responsive */
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }
}

@media (max-width: 500px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer {
        padding: 40px 0 0;
    }
}