/* ==========================================
   IMMOBILIEN-PREISCHECK - STYLES
   Premium Design für Lead-Magnet
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #1a56db;
    --primary-dark: #1e429f;
    --primary-light: #3b82f6;
    --secondary: #0d9488;
    --secondary-light: #14b8a6;
    
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-light: #f8fafc;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-dark: #1e293b;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --gradient-primary: linear-gradient(135deg, #1a56db 0%, #0d9488 100%);
    --gradient-glow: linear-gradient(135deg, rgba(26, 86, 219, 0.4) 0%, rgba(13, 148, 136, 0.4) 100%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(26, 86, 219, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* ==========================================
   HEADER
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

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

.nav {
    display: flex;
    gap: var(--spacing-xl);
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav a:hover {
    color: var(--text-primary);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center top, rgba(26, 86, 219, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    background: rgba(26, 86, 219, 0.2);
    color: var(--primary-light);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(26, 86, 219, 0.3);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(26, 86, 219, 0.5);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

.floating-card .card-icon {
    font-size: 1.5rem;
}

.floating-card .card-text {
    font-weight: 500;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 15%;
    left: 25%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ==========================================
   CALCULATOR SECTION
   ========================================== */
.calculator-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0c1222 100%);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

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

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0.5;
    transition: opacity var(--transition-normal);
}

.step.active {
    opacity: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.step.active .step-number {
    background: var(--gradient-primary);
    border-color: transparent;
}

.step-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.step-line {
    width: 60px;
    height: 2px;
    background: var(--text-secondary);
    opacity: 0.3;
}

/* Calculator Card */
.calculator-card {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

/* Form Steps */
.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.form-group input,
.form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.2);
}

.form-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

.region-display {
    font-size: 0.8rem;
    color: var(--secondary-light);
    min-height: 1.2em;
}

/* Toggle Buttons */
.toggle-container {
    display: flex;
    gap: var(--spacing-sm);
}

.toggle-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-btn:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.toggle-btn.active {
    background: rgba(26, 86, 219, 0.2);
    border-color: var(--primary);
    color: var(--text-primary);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(26, 86, 219, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

/* ==========================================
   RESULT DISPLAY
   ========================================== */
.result-container {
    text-align: center;
}

.result-header {
    margin-bottom: var(--spacing-lg);
}

.result-badge {
    display: inline-block;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.result-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.result-value {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.value-min, .value-max {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.value-separator {
    font-size: 2rem;
    color: var(--text-secondary);
}

.result-breakdown {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
}

.breakdown-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.breakdown-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.breakdown-value {
    font-size: 1.1rem;
    font-weight: 600;
}

.result-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.result-disclaimer p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Premium Upsell */
.premium-upsell {
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.1) 0%, rgba(13, 148, 136, 0.1) 100%);
    border: 1px solid rgba(26, 86, 219, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.upsell-header {
    margin-bottom: var(--spacing-md);
}

.upsell-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.upsell-header h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

.upsell-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.upsell-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.upsell-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.price-label {
    color: var(--text-secondary);
}

.price-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--success);
}

.premium-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.premium-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.back-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.back-btn:hover {
    color: var(--text-primary);
}

/* ==========================================
   PREMIUM FORM
   ========================================== */
.premium-container {
    text-align: center;
}

.premium-header {
    margin-bottom: var(--spacing-xl);
}

.premium-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.premium-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.premium-header p {
    color: var(--text-secondary);
}

.premium-form .form-group {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.order-summary {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 600;
    font-size: 1.1rem;
}

#paypal-button-container {
    margin: var(--spacing-lg) 0;
}

.payment-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   SUCCESS MESSAGE
   ========================================== */
.success-container {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.success-container h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.success-container > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.success-email {
    display: inline-block;
    background: rgba(26, 86, 219, 0.2);
    color: var(--primary-light);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.success-info {
    text-align: left;
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.success-info p {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.success-info a {
    color: var(--primary-light);
}

/* ==========================================
   HOW IT WORKS
   ========================================== */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-dark);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-card-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================
   FAQ
   ========================================== */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0c1222 100%);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.faq-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    padding: var(--spacing-2xl) 0;
    background: #0a0f1a;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin: 0 auto var(--spacing-xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .result-value {
        flex-direction: column;
        gap: 0;
    }
    
    .value-min, .value-max {
        font-size: 1.75rem;
    }
    
    .result-breakdown {
        grid-template-columns: 1fr;
    }
    
    .step-indicator {
        flex-wrap: wrap;
    }
    
    .step-line {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}