/* ===== VARIABLEN ===== */
:root {
    /* Farben */
    --primary-bg: #0B1426;
    --secondary-bg: #1A2332;
    --accent-bg: #2A3441;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --text-primary: #FFFFFF;
    --text-secondary: #E5E7EB;
    --text-muted: #9CA3AF;
    
    --accent-cyan: #00D4FF;
    --accent-purple: #8B5CF6;
    --accent-lime: #32D74B;
    --neon-glow: #00FFFF;
    
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-lime) 100%);
    --gradient-text: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 50%, var(--accent-lime) 100%);
    
    /* Effekte */
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-neon: 0 0 20px var(--neon-glow);
    --glow-cyan: 0 0 30px rgba(0, 212, 255, 0.5);
    --glow-purple: 0 0 30px rgba(139, 92, 246, 0.5);
    
    /* Typografie */
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Abstände */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Animationen */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-round: 50%;
}

/* ===== BASIS STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* ===== NAVIGATION ===== */
.nav-glass {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 20, 38, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-medium);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-container {
    position: relative;
}

.logo-glow {
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== KONFIGURATOR CONTAINER ===== */
.configurator-container {
    max-width: 1200px;
    margin: 100px auto var(--spacing-xxl);
    padding: var(--spacing-xl);
}

.configurator-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.configurator-header h1 {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.configurator-header .subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== SCHRITT STYLES ===== */
.step {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.step.active {
    display: block;
}

.step h2 {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-round);
    font-weight: 700;
    color: var(--text-primary);
}

/* ===== STIL AUSWAHL ===== */
.style-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.style-option {
    cursor: pointer;
    transition: all var(--transition-medium);
    text-align: center;
    position: relative;
}

.style-option:hover {
    transform: translateY(-5px);
}

.style-preview {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--glass-border);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    padding: var(--spacing-md);
}

.style-demo {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.demo-nav {
    height: 20%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.demo-hero {
    height: 40%;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
}

.demo-card {
    height: 30%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.style-option:hover .style-preview {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.style-option.active .style-preview {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    transform: scale(1.02);
}

.style-option p {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.style-description {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== FUNKTIONEN AUSWAHL ===== */
.feature-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.feature-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 60px;
    cursor: pointer;
    user-select: none;
    min-height: 80px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-medium);
}

.feature-checkbox:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
}

.feature-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    height: 24px;
    width: 24px;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-medium);
}

.feature-checkbox:hover .checkmark {
    border-color: var(--accent-cyan);
}

.feature-checkbox input:checked ~ .checkmark {
    background: var(--gradient-primary);
    border-color: var(--accent-cyan);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.feature-checkbox input:checked ~ .checkmark:after {
    display: block;
}

.feature-checkbox .checkmark:after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid var(--text-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.feature-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.feature-content i {
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.feature-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

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

/* ===== FARB AUSWAHL ===== */
.color-customization {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.color-picker-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.color-picker-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.color-picker-group label {
    font-weight: 600;
    color: var(--text-secondary);
}

.color-picker-group input[type="color"] {
    width: 100%;
    height: 60px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.color-picker-group input[type="color"]::-webkit-color-swatch {
    border: 3px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.color-picker-group input[type="color"]::-webkit-color-swatch:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.color-hex {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
}

.color-live-preview {
    display: flex;
    justify-content: center;
    align-items: center;
}

.preview-device {
    width: 300px;
    height: 500px;
    background: var(--secondary-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-glass);
    position: relative;
}

.device-screen {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.preview-nav {
    height: 15%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.preview-logo {
    width: 80px;
    height: 30px;
    background: var(--text-primary);
    border-radius: var(--radius-sm);
}

.preview-nav-item {
    width: 30px;
    height: 10px;
    background: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.preview-nav-item:nth-child(2) {
    width: 50px;
}

.preview-hero {
    height: 35%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.preview-headline {
    width: 80%;
    height: 20px;
    border-radius: var(--radius-sm);
}

.preview-button {
    width: 120px;
    height: 30px;
    border-radius: var(--radius-lg);
}

.preview-card {
    height: 30%;
    margin: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.preview-card-title {
    width: 60%;
    height: 15px;
    border-radius: var(--radius-sm);
}

.preview-card-text {
    width: 90%;
    height: 10px;
    border-radius: var(--radius-sm);
}

.preview-card-text:nth-child(2) {
    width: 80%;
}

.preview-card-text:nth-child(3) {
    width: 70%;
}

/* ===== ZUSAMMENFASSUNG ===== */
.project-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.summary-visual {
    display: flex;
    justify-content: center;
}

.summary-device {
    width: 280px;
    height: 500px;
    background: var(--secondary-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-glass);
}

.summary-screen {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--primary-bg);
}

.summary-nav {
    height: 15%;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
}

.summary-hero {
    height: 35%;
    background: linear-gradient(to right, var(--primary-bg), var(--secondary-bg));
}

.summary-features {
    height: 50%;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1rem;
    color: var(--accent-cyan);
}

.summary-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.summary-section {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.summary-section h3 {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-cyan);
}

.summary-section p {
    color: var(--text-secondary);
}

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

.summary-section li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.summary-section li:before {
    content: "•";
    color: var(--accent-cyan);
    position: absolute;
    left: 0;
}

.summary-colors {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.color-swatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.swatch {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-round);
    border: 2px solid var(--glass-border);
}

.color-swatch span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== AKTIONEN ===== */
.project-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.action-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: none;
}

.action-btn i {
    font-size: 1.1rem;
}

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

.action-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--glow-cyan);
}

.action-btn.secondary {
    background: transparent;
    color: var(--accent-cyan);
    border: 2px solid var(--accent-cyan);
}

.action-btn.secondary:hover {
    background: var(--accent-cyan);
    color: var(--primary-bg);
}

/* ===== NAVIGATION ===== */
.step-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

.step-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-medium);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-btn:hover:not(:disabled) {
    background: var(--gradient-primary);
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
}

.step-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.step-btn i {
    font-size: 1rem;
}

.step-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.indicator-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-round);
    background: var(--glass-border);
    transition: all var(--transition-medium);
}

.indicator-dot.active {
    background: var(--accent-cyan);
    transform: scale(1.2);
}

.indicator-line {
    width: 30px;
    height: 2px;
    background: var(--glass-border);
}

/* ===== ANIMATIONEN ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .color-customization {
        grid-template-columns: 1fr;
    }
    
    .project-summary {
        grid-template-columns: 1fr;
    }
    
    .summary-visual {
        order: 2;
    }
}

@media (max-width: 768px) {
    .configurator-container {
        margin-top: 80px;
        padding: var(--spacing-md);
    }
    
    .style-options {
        grid-template-columns: 1fr;
    }
    
    .feature-checkboxes {
        grid-template-columns: 1fr;
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .step-navigation {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .step-indicator {
        margin: var(--spacing-md) 0;
    }
}

@media (max-width: 480px) {
    .configurator-header h1 {
        font-size: 2rem;
    }
    
    .step h2 {
        font-size: 1.5rem;
    }
    
    .preview-device,
    .summary-device {
        width: 250px;
        height: 400px;
    }
}