/* Local Font Faces - DSGVO-konform (keine externen Server) */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter-400.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/inter-500.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/inter-600.ttf') format('truetype');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/inter-700.ttf') format('truetype');
}
@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/poppins-500.ttf') format('truetype');
}
@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/poppins-600.ttf') format('truetype');
}
@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/poppins-700.ttf') format('truetype');
}

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

:root {
    /* Color Palette - Modern innovative theme */
    --primary-gray: #E8E8E8;
    --secondary-gray: #F5F5F5;
    --dark-gray: #333333;
    --light-gray: #FAFAFA;
    --accent-gray: #CBD5E1;
    --accent-orange: #F97316;
    --accent-light-gray: #94A3B8;
    --white: #FFFFFF;
    --text-dark: #2D3748;
    --text-light: #718096;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Poppins', var(--font-primary);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.25rem;
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
    background: var(--accent-orange);
    filter: brightness(1.05);
}

.btn-secondary {
    background: var(--white);
    color: var(--text-dark);
    border: 2px solid var(--primary-gray);
}

.btn-secondary:hover {
    background: var(--secondary-gray);
    transform: translateY(-2px);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 1.25rem 0;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--accent-gray), var(--accent-orange), var(--accent-light-gray)) 1;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-light-gray), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    position: relative;
}

/* Logo styling */
.nav-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 8px rgba(249, 115, 22, 0.3));
}

.nav-brand {
    display: flex;
    align-items: center;
}

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

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gray), var(--accent-orange));
    transition: width 0.3s ease;
}

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

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

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    position: relative;
}

.hamburger-line {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
}

.hamburger-line:nth-child(1) {
    margin-bottom: 6px;
}

.hamburger-line:nth-child(3) {
    margin-top: 6px;
}

/* Hamburger Animation to X */
.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    background: var(--accent-orange);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    background: var(--accent-orange);
}

/* Mobile Menu Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 998;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    padding-top: 80px;
}

.stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, transparent),
        radial-gradient(2px 2px at 60px 70px, #ddd, transparent),
        radial-gradient(1px 1px at 50px 50px, #ddd, transparent),
        radial-gradient(1px 1px at 130px 80px, #eee, transparent),
        radial-gradient(2px 2px at 90px 10px, #ddd, transparent);
    background-size: 200px 200px;
    animation: stars-move 60s linear infinite;
    opacity: 0.5;
}

@keyframes stars-move {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(-200px);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-light-gray), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    line-height: 1.2;
    padding-bottom: 0.1em;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.planet {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #f5f7fa, #d0d8e0 60%, #a8b4c0);
    box-shadow: 
        0 0 60px rgba(249, 115, 22, 0.2),
        inset -20px -20px 60px rgba(0, 0, 0, 0.1),
        inset 20px 20px 40px rgba(255, 255, 255, 0.5);
    position: relative;
    animation: planet-float 6s ease-in-out infinite;
}

.planet::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 15%;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(180, 190, 200, 0.4);
    box-shadow: inset -5px -5px 10px rgba(0, 0, 0, 0.1);
}

.planet::after {
    content: '';
    position: absolute;
    bottom: 30%;
    right: 20%;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(180, 190, 200, 0.3);
    box-shadow: inset -3px -3px 8px rgba(0, 0, 0, 0.1);
}

@keyframes planet-float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* Services Section */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--secondary-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(249, 115, 22, 0.2);
    border-color: var(--accent-orange);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

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

/* Configurator Section */
.configurator {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.configurator-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.configurator-progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.configurator-progress::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--primary-gray);
    z-index: 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all 0.3s ease;
}

.progress-step.active .step-number {
    background: linear-gradient(135deg, var(--accent-gray), var(--accent-orange));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.progress-step.completed .step-number {
    background: var(--accent-orange);
    color: var(--white);
}

.step-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.progress-step.active .step-label {
    color: var(--text-dark);
}

.config-step {
    display: none;
}

.config-step.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.config-step h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.config-step > p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.category-card {
    background: var(--secondary-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-orange);
    box-shadow: 0 8px 20px rgba(249, 115, 22, 0.2);
}

.category-card.selected {
    border-color: var(--accent-orange);
    background: linear-gradient(135deg, rgba(203, 213, 225, 0.1), rgba(249, 115, 22, 0.12));
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.25);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.category-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.category-card p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.button-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--primary-gray);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.requirements-content {
    margin-bottom: var(--spacing-md);
}

.requirement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--secondary-gray);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
}

.requirement-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.recommendation-content {
    background: var(--secondary-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
}

.recommendation-content h4 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-light-gray), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.recommendation-content ul {
    list-style-position: inside;
    margin-bottom: var(--spacing-sm);
}

.recommendation-content li {
    padding: 0.5rem 0;
    color: var(--text-light);
}

.contact-form-inline {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 2px solid var(--accent-orange);
}

.contact-form-inline h4 {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-row input {
    padding: 0.875rem;
    border: 2px solid var(--primary-gray);
    border-radius: 8px;
    font-size: 1rem;
}

/* Open Source Section */
.opensource-section {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.opensource-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.opensource-text h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.opensource-benefits {
    margin: var(--spacing-md) 0;
}

.benefit-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--secondary-gray);
    border-radius: 8px;
}

.benefit-icon {
    font-size: 1.5rem;
    color: var(--accent-orange);
    font-weight: bold;
}

.benefit-item h4 {
    margin-bottom: 0.25rem;
}

.benefit-item p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.highlight-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--accent-orange);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(203, 213, 225, 0.1), rgba(249, 115, 22, 0.12));
    border-radius: 8px;
    border-left: 4px solid var(--accent-orange);
}

.opensource-examples {
    background: var(--secondary-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    height: fit-content;
}

.opensource-examples h4 {
    margin-bottom: var(--spacing-md);
}

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

.examples-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--primary-gray);
}

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

.examples-list strong {
    color: var(--text-dark);
    font-weight: 600;
}

/* Portfolio Section */
.portfolio {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.portfolio-image {
    height: 250px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 1rem;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.03);
}

.placeholder-image {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
}

.portfolio-content {
    padding: var(--spacing-md);
}

.portfolio-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.portfolio-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--secondary-gray);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-dark);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin-top: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-item a {
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--secondary-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .planet {
        width: 300px;
        height: 300px;
    }
    
    /* Mobile Navigation */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 2rem 2rem;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        gap: 0;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        margin: 0;
    }
    
    .nav-menu a {
        display: block;
        padding: 1rem 0;
        font-size: 1.25rem;
        border-bottom: 1px solid var(--primary-gray);
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .opensource-content {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .configurator-progress {
        flex-wrap: wrap;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--accent-orange);
    color: var(--white);
}

/* Enhanced Configurator Styles */
.software-option {
    transition: all 0.3s ease;
}

.software-option:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.software-option input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--accent-orange);
    cursor: pointer;
}

.requirement-item {
    transition: all 0.3s ease;
}

.requirement-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.requirement-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--accent-orange);
    cursor: pointer;
}

.requirement-item label {
    cursor: pointer;
    width: 100%;
}

/* Custom Input Fields in Configurator */
#custom-software-name {
    transition: all 0.3s ease;
}

#custom-software-name:focus {
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

/* Enhanced Feature Tags */
.software-option span {
    transition: all 0.2s ease;
}

.software-option:hover span {
    background: var(--accent-light-gray);
    color: var(--white);
}

/* ============================================
   WUNSCH-ENGINEER - Modern Interactive Styles
   ============================================ */

/* Services Grid - 3 Column Layout */
.services-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 992px) {
    .services-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-grid-3 {
        grid-template-columns: 1fr;
    }
    
    .service-card-interactive h3 {
        font-size: 1.5rem;
    }
}

/* Interactive Service Cards */
.service-card-interactive {
    position: relative;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid var(--primary-gray);
    cursor: pointer;
    overflow: hidden;
    text-align: center;
}

.service-card-interactive:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--accent-orange);
    box-shadow: 0 25px 50px rgba(249, 115, 22, 0.25);
}

.service-card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(249, 115, 22, 0.15), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card-interactive:hover .service-card-glow {
    opacity: 1;
}

.service-icon-large {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    display: block;
    transition: transform 0.4s ease;
}

.service-card-interactive:hover .service-icon-large {
    transform: scale(1.1) rotate(5deg);
}

.service-card-interactive h3 {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--text-dark), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-card-interactive p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

/* Feature Tags */
.service-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-tag {
    padding: 0.35rem 0.85rem;
    background: var(--secondary-gray);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s ease;
}

.service-card-interactive:hover .feature-tag {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(203, 213, 225, 0.2));
}

/* Engineer Button */
.btn-engineer {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    color: var(--white);
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-engineer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

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

.btn-engineer:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.4);
}

.btn-icon {
    font-size: 1.2rem;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.2) rotate(15deg); }
}

/* ============================================
   MODAL STYLES
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--white);
    border-radius: 24px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-small {
    max-width: 500px;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--secondary-gray);
    color: var(--text-dark);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.modal-close:hover {
    background: var(--accent-orange);
    color: var(--white);
    transform: rotate(90deg);
}

.modal-header {
    text-align: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--secondary-gray), var(--light-gray));
    border-radius: 24px 24px 0 0;
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    display: block;
    animation: bounce-in 0.6s ease;
}

@keyframes bounce-in {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.modal-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-dark), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Progress Bar */
.engineer-progress {
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--primary-gray);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-orange), #fbbf24);
    border-radius: 10px;
    width: 0%;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

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

.progress-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-orange);
    min-width: 120px;
    text-align: right;
}

/* Engineer Content */
.engineer-content {
    padding: var(--spacing-md) var(--spacing-lg);
}

/* Configuration Sections */
.config-section {
    margin-bottom: var(--spacing-lg);
    animation: fade-slide-in 0.4s ease forwards;
    opacity: 0;
}

.config-section:nth-child(1) { animation-delay: 0.1s; }
.config-section:nth-child(2) { animation-delay: 0.2s; }
.config-section:nth-child(3) { animation-delay: 0.3s; }
.config-section:nth-child(4) { animation-delay: 0.4s; }

@keyframes fade-slide-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.config-section-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.config-section-title span {
    font-size: 1.5rem;
}

/* Modern Slider */
.slider-container {
    padding: var(--spacing-sm) 0;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-light);
}

.slider-label-active {
    color: var(--accent-orange);
    font-weight: 600;
}

.modern-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 10px;
    background: var(--primary-gray);
    border-radius: 10px;
    outline: none;
    cursor: pointer;
    position: relative;
}

.modern-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    cursor: grab;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
    transition: all 0.2s ease;
}

.modern-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5);
}

.modern-slider::-webkit-slider-thumb:active {
    cursor: grabbing;
    transform: scale(1.15);
}

.modern-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    cursor: grab;
    border: none;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.4);
}

.slider-value {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-orange);
    margin-top: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(203, 213, 225, 0.1));
    border-radius: 20px;
    display: inline-block;
}

/* Toggle Switches */
.toggle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--secondary-gray);
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.toggle-item:hover {
    background: var(--light-gray);
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.toggle-item.active {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(249, 115, 22, 0.05));
    border: 2px solid var(--accent-orange);
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.toggle-emoji {
    font-size: 1.5rem;
}

/* Custom Toggle Switch */
.toggle-switch {
    position: relative;
    width: 50px;
    height: 28px;
    background: var(--primary-gray);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.toggle-switch.active {
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: var(--white);
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active::after {
    left: calc(100% - 25px);
}

/* Draggable Feature Cards (Baukasten) */
.feature-builder {
    margin-top: var(--spacing-sm);
}

.available-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: var(--spacing-sm);
    background: var(--secondary-gray);
    border-radius: 12px;
    min-height: 60px;
}

.feature-card {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--white);
    border-radius: 10px;
    cursor: grab;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    user-select: none;
    font-weight: 500;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-orange);
}

.feature-card:active {
    cursor: grabbing;
    transform: scale(1.05);
}

.feature-card.selected {
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    color: var(--white);
    border-color: var(--accent-orange);
}

.feature-card-icon {
    font-size: 1.2rem;
}

.drop-zone {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.05), rgba(203, 213, 225, 0.1));
    border: 2px dashed var(--accent-orange);
    border-radius: 12px;
    min-height: 100px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-start;
    transition: all 0.3s ease;
}

.drop-zone.drag-over {
    background: rgba(249, 115, 22, 0.1);
    border-style: solid;
}

.drop-zone-placeholder {
    width: 100%;
    text-align: center;
    color: var(--text-light);
    font-style: italic;
}

/* Selected Features in Drop Zone */
.selected-feature {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--accent-orange), #fb923c);
    color: var(--white);
    border-radius: 10px;
    font-weight: 500;
    animation: pop-in 0.3s ease;
}

@keyframes pop-in {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.remove-feature {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    margin-left: 0.25rem;
}

.remove-feature:hover {
    background: var(--white);
    color: var(--accent-orange);
}

/* Configuration Summary */
.config-summary {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--secondary-gray);
    border-top: 1px solid var(--primary-gray);
}

.config-summary h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.summary-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.summary-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-dark);
    animation: fade-in 0.3s ease;
}

@keyframes fade-in {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.summary-item-icon {
    color: var(--accent-orange);
}

.summary-empty {
    color: var(--text-light);
    font-style: italic;
}

/* Modal Actions */
.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
    justify-content: flex-end;
}

.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    animation: glow-sweep 3s ease-in-out infinite;
}

@keyframes glow-sweep {
    0% { transform: rotate(45deg) translateX(-100%); }
    50%, 100% { transform: rotate(45deg) translateX(100%); }
}

/* Contact Form Modal */
.contact-form-modal {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.contact-form-modal .form-group {
    margin-bottom: var(--spacing-sm);
}

.contact-form-modal label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text-dark);
}

.contact-form-modal input,
.contact-form-modal textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--primary-gray);
    border-radius: 10px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
}

.contact-form-modal input:focus,
.contact-form-modal textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.1);
}

/* Option Cards (for style selection etc.) */
.option-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.option-card {
    padding: var(--spacing-md);
    background: var(--secondary-gray);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.option-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.option-card.selected {
    border-color: var(--accent-orange);
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(249, 115, 22, 0.05));
}

.option-card-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.option-card-title {
    font-weight: 600;
    color: var(--text-dark);
}

.option-card-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-container {
        margin: var(--spacing-sm);
        max-height: 95vh;
        border-radius: 16px;
    }
    
    .modal-header {
        padding: var(--spacing-md);
        border-radius: 16px 16px 0 0;
    }
    
    .engineer-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .toggle-grid {
        grid-template-columns: 1fr;
    }
    
    .option-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-actions {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .modal-actions .btn {
        width: 100%;
    }
}

/* Custom scrollbar for modal */
.modal-container::-webkit-scrollbar {
    width: 8px;
}

.modal-container::-webkit-scrollbar-track {
    background: var(--secondary-gray);
    border-radius: 10px;
}

.modal-container::-webkit-scrollbar-thumb {
    background: var(--accent-light-gray);
    border-radius: 10px;
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: var(--accent-orange);
}

/* Pulse animation for attention */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* Success State */
.success-message {
    text-align: center;
    padding: var(--spacing-lg);
}

.success-icon {
    font-size: 5rem;
    animation: success-bounce 0.6s ease;
}

@keyframes success-bounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

.success-message h3 {
    font-size: 1.75rem;
    margin: var(--spacing-sm) 0;
    color: var(--text-dark);
}

.success-message p {
    color: var(--text-light);
}

/* ============================================
   CHECKBOX STYLES FOR PRIVACY CONSENT
   ============================================ */

.form-group-checkbox {
    margin-bottom: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    margin-top: 2px;
    accent-color: var(--accent-orange);
    cursor: pointer;
}

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

.checkbox-text a {
    color: var(--accent-orange);
    text-decoration: none;
    font-weight: 500;
}

.checkbox-text a:hover {
    text-decoration: underline;
}


/* Dark background variant (for modal) */
.contact-form-modal .checkbox-text {
    color: var(--text-light);
}

.contact-form-modal .checkbox-text a {
    color: var(--accent-orange);
}