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

:root {
    --color-primary: #0a0a0a;
    --color-secondary: #1a1a1a;
    --color-accent: #ff4444;
    --color-accent-hover: #ff6666;
    --color-secondary-accent: #4a5568;
    --color-text: #e2e8f0;
    --color-text-light: #cbd5e0;
    --color-text-muted: #a0aec0;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Carbon Texture Background */
.carbon-texture {
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 4px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 4px
        );
}

/* Header / Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 68, 68, 0.2);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: relative;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    align-items: flex-start;
}

.logo-image {
    max-height: 60px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

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

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

.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.burger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    transition: all 0.3s ease;
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(26, 26, 26, 0.9) 100%),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><rect fill="%23000" width="100" height="100"/><path d="M0 0L100 100M100 0L0 100" stroke="%23ffffff" stroke-width="0.5" opacity="0.05"/></svg>');
    background-size: cover;
    background-position: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 68, 68, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 30px rgba(255, 68, 68, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-hours {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-family: var(--font-heading);
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    box-shadow: 0 0 20px rgba(255, 68, 68, 0.5);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 15px rgba(255, 68, 68, 0.3);
}

.btn:disabled,
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Section Styles */
section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--color-accent);
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

/* Services Section */
.services {
    background-color: var(--color-secondary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.02) 2px,
            rgba(255, 255, 255, 0.02) 4px
        );
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.service-card {
    background-color: rgba(26, 26, 26, 0.8);
    padding: 2.5rem 2rem;
    border: 1px solid rgba(255, 68, 68, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(255, 68, 68, 0.2);
    background-color: rgba(26, 26, 26, 0.95);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
    text-transform: uppercase;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Ankauf & Verkauf Section */
.ankauf-verkauf {
    background-color: var(--color-primary);
}

.ankauf-verkauf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.ankauf-box,
.verkauf-box {
    background-color: var(--color-secondary);
    padding: 2.5rem;
    border: 1px solid rgba(255, 68, 68, 0.2);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.ankauf-box:hover,
.verkauf-box:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(255, 68, 68, 0.15);
}

.ankauf-box h3,
.verkauf-box h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    text-transform: uppercase;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.8rem 0;
    color: var(--color-text-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 1.05rem;
}

.feature-list li:last-child {
    border-bottom: none;
}

.ankauf-verkauf-button {
    text-align: center;
    margin-top: 2rem;
}

/* Über uns Section */
.ueber-uns {
    background-color: var(--color-secondary);
}

.ueber-uns-content {
    max-width: 900px;
    margin: 0 auto 3rem;
}

.ueber-uns-content p {
    margin-bottom: 1.5rem;
    color: var(--color-text-light);
    font-size: 1.1rem;
    line-height: 1.8;
}

.contact-person {
    margin-top: 2.5rem;
    padding: 2rem;
    background-color: rgba(255, 68, 68, 0.1);
    border-left: 4px solid var(--color-accent);
    border-radius: 4px;
}

.contact-person p {
    margin-bottom: 0.5rem;
}

.contact-person strong {
    color: var(--color-accent);
    font-size: 1.2rem;
}

.key-facts {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.fact {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.fact-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-accent);
    font-weight: 700;
    line-height: 1;
}

.fact-label {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Kontakt Section */
.kontakt {
    background-color: var(--color-primary);
}

.kontakt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.kontakt-info h3,
.kontakt-form-wrapper h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--color-accent);
    text-transform: uppercase;
}

.kontakt-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.kontakt-item {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.kontakt-item:last-child {
    border-bottom: none;
}

.kontakt-item strong {
    display: block;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.kontakt-item p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.kontakt-item a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Form Styles */
.kontakt-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--color-text);
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    background-color: var(--color-secondary);
    border: 1px solid rgba(255, 68, 68, 0.2);
    border-radius: 4px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(255, 68, 68, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    padding: 1rem;
    border-radius: 4px;
    margin-top: 1rem;
    display: none;
}

.form-message.success {
    display: block;
    background-color: rgba(0, 255, 0, 0.1);
    border: 1px solid rgba(0, 255, 0, 0.3);
    color: #4ade80;
}

.form-message.error {
    display: block;
    background-color: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
    color: var(--color-accent);
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    border-top: 1px solid rgba(255, 68, 68, 0.2);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    font-family: var(--font-heading);
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.footer-info p {
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.footer-info a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 3rem;
        gap: 2rem;
        transition: left 0.3s ease;
        border-top: 1px solid rgba(255, 68, 68, 0.2);
    }

    .nav-menu.active {
        left: 0;
    }

    .burger {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .ankauf-verkauf-grid {
        grid-template-columns: 1fr;
    }

    .kontakt-grid {
        grid-template-columns: 1fr;
    }

    .key-facts {
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* Focus States for Accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Smooth Scroll Behavior */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}