/* ============================================= */
/* --- Globale Variablen & Reset --- */
/* ============================================= */
:root {
    --primary-color: #0052cc; /* Professionelles, vertrauenswürdiges Blau */
    --secondary-color: #23272A; /* Dunkles Grau für Text */
    --accent-color: #00a3bf; /* Türkis für Akzente */
    --light-color: #ffffff;
    --gray-color: #f8f9fa;
    --font-headings: 'Poppins', sans-serif;
    --font-body: 'Roboto', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); line-height: 1.7; color: #444; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
h1, h2, h3 { font-family: var(--font-headings); font-weight: 600; color: var(--secondary-color); }
h1 { font-size: 3.2rem; line-height: 1.2; }
h2 { font-size: 2.5rem; text-align: center; margin-bottom: 3rem; }
section { padding: 5rem 0; }
.subtitle { font-size: 1.2rem; color: #666; max-width: 600px; margin: 1rem auto 2rem auto; }

/* ============================================= */
/* --- Header & Buttons --- */
/* ============================================= */
.main-header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); box-shadow: 0 2px 10px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem 0; }
.logo { display: flex; align-items: center; gap: 0.75rem; font-family: var(--font-headings); font-size: 1.4rem; font-weight: 700; color: var(--secondary-color); }
.logo .pro-badge { color: var(--primary-color); }
.site-logo { height: 100px; width: auto; display: block; }
.brand-text { line-height: 1; }
.nav-right { display: flex; align-items: center; gap: 1.5rem; }
.lang-switcher button { background: none; border: none; cursor: pointer; font-family: var(--font-headings); font-size: 1rem; padding: 0.2rem; color: #888; }
.lang-switcher button.active { color: var(--primary-color); font-weight: 700; }
.lang-switcher span { color: #ccc; margin: 0 0.2rem; }
.cta-button { background: var(--primary-color); color: var(--light-color); padding: 0.8rem 2rem; border-radius: 50px; text-decoration: none; font-family: var(--font-headings); font-weight: 600; transition: all 0.3s ease; border: none; font-size: 1rem; cursor: pointer; }
.cta-button:hover { background: #003da5; transform: translateY(-3px); box-shadow: 0 4px 15px rgba(0, 82, 204, 0.3); }

/* ============================================= */
/* --- Sections --- */
/* ============================================= */
.hero { padding: 6rem 0; background: var(--gray-color); }
.hero .container { display: flex; align-items: center; gap: 3rem; }
.hero-content { flex: 1; }
.hero-image { flex: 1; text-align: center; }
.hero-image img { max-width: 100%; border-radius: 8px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.problem-section { background: var(--light-color); }
.problem-items { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; text-align: center; }
.problem-items i { font-size: 3rem; color: var(--primary-color); margin-bottom: 1rem; }
.features-section { background: var(--gray-color); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.feature-card { background: white; padding: 2rem; border-radius: 8px; text-align: center; box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.feature-card i { font-size: 2.5rem; color: var(--primary-color); margin-bottom: 1rem; }
.audience-section { background: var(--light-color); }
.audience-cards { display: flex; flex-direction: column; gap: 2rem; max-width: 800px; margin: 0 auto; }
.audience-card { display: flex; align-items: center; gap: 2rem; background: var(--gray-color); padding: 2rem; border-radius: 8px; }
.audience-icon { font-size: 3rem; color: var(--primary-color); }
.trust-section { background: var(--secondary-color); color: var(--light-color); text-align: center; }
.trust-section h2, .trust-section .subtitle { color: var(--light-color); }
.trust-section i { font-size: 3rem; color: var(--accent-color); margin-bottom: 1rem; }
.tech-stack { margin-top: 2rem; display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.tech-stack span { background: rgba(255,255,255,0.1); padding: 0.5rem 1rem; border-radius: 20px; font-size: 0.9rem; }
.contact-form-section { background: var(--gray-color); }
.contact-form-section form { max-width: 700px; margin: 2rem auto 0 auto; }
.form-row { display: flex; gap: 2rem; }
.form-group { position: relative; margin-bottom: 2rem; width: 100%; }
.form-group input { width: 100%; padding: 10px 0; background: none; border: none; border-bottom: 2px solid #ccc; color: var(--secondary-color); font-size: 1rem; outline: none; }
.form-group label { position: absolute; top: 10px; left: 0; color: #888; transition: all 0.3s ease; pointer-events: none; }
.form-group input:focus { border-bottom-color: var(--primary-color); }
.form-group input:focus + label, .form-group input:valid + label { top: -15px; font-size: 0.8rem; color: var(--primary-color); }
.main-footer { background: var(--secondary-color); color: rgba(255,255,255,0.7); padding: 2rem 0; text-align: center; }
.main-footer .container { display: flex; justify-content: space-between; align-items: center; }
.footer-links a { color: rgba(255,255,255,0.7); text-decoration: none; margin-left: 1.5rem; }
.footer-links a:hover { color: white; }

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    .hero .container { flex-direction: column; }
    .form-row { flex-direction: column; gap: 0; }
    .nav-cta { display: none; }
    .main-footer .container { flex-direction: column; gap: 1rem; }
}