/* 
 * Design System - Ihr Autoankauf Wuppertal
 * Theme: Vibrant Orange & Black (Performance & Trust)
 */

:root {
    --primary-orange: #FF5E00;
    /* Luminous Orange */
    --primary-orange-hover: #E04D00;
    --dark-black: #0F0F0F;
    --soft-black: #1A1A1A;
    --text-light: #F4F4F9;
    --text-dark: #333333;
    --bg-neutral: #F7F7FA;
    /* Eye-friendly neutral */
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --btn-shadow: 0 4px 14px rgba(255, 94, 0, 0.4);
    --border-radius: 16px;
    --transition-speed: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', sans-serif;
    /* Modern, clean font */
    background-color: var(--bg-neutral);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-orange {
    color: var(--primary-orange);
}

.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

/* Buttons with Haptic Feel */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all var(--transition-speed);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-orange), #FF4500);
    color: white;
    box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 94, 0, 0.6);
}

.btn-primary:active {
    transform: scale(0.96);
    box-shadow: 0 2px 10px rgba(255, 94, 0, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--dark-black);
    border: 2px solid #EAEAEA;
}

.btn-secondary:hover {
    border-color: var(--primary-orange);
    color: var(--primary-orange);
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark-black);
    text-decoration: none;
}

.logo span {
    color: var(--primary-orange);
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-black);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-speed);
}

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

/* Hero Section */
.hero {
    background-color: var(--dark-black);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 94, 0, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

/* Calculator Card */
.calculator-card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    color: var(--text-dark);
}

.calc-step {
    animation: fadeIn 0.4s ease-out;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #666;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #EAEAEA;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-speed);
}

.form-control:focus {
    border-color: var(--primary-orange);
    outline: none;
    box-shadow: 0 0 0 4px rgba(255, 94, 0, 0.1);
}

.calc-progress {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
}

.progress-bar {
    height: 4px;
    flex: 1;
    background: #EAEAEA;
    border-radius: 2px;
}

.progress-bar.active {
    background: var(--primary-orange);
}

/* Features/Trust Section */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    transition: var(--transition-speed);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-orange);
    margin-bottom: 20px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sticky Floating Action Buttons */
.sticky-fab-container {
    position: fixed;
    bottom: 20px;
    left: 0;
    right: 0;
    z-index: 999;
    pointer-events: none;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.fab {
    pointer-events: all;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-speed);
    cursor: pointer;
}

.fab-phone {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
}

.fab-whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: white;
}

.fab:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
}

.fab:active {
    transform: scale(0.95);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 40px 0;
    }

    h1 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
        /* Hide nav on mobile for simplicity, but could add a hamburger later */
    }

    .fab {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
    }
}