/* Globale Variablen und Reset */
:root {
    --primary-color: #3b82f6; /* Lebendigeres Blau */
    --secondary-color: #111827; /* Dunkles Grau statt Tiefblau */
    --background-color: #f9fafb; /* Helles, sauberes Grau */
    --text-color: #374151;
    --light-text-color: #fff;
    --card-bg-color: #ffffff;
    --font-family-base: 'Roboto', sans-serif;
    --font-family-heading: 'Poppins', sans-serif;
    --border-radius: 16px; /* Größerer Radius für weichere Kanten */
    --shadow-soft: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-medium: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-family-base);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-family: var(--font-family-heading); font-weight: 800; }
section { padding: 100px 0; }
section h2 { text-align: center; margin-bottom: 4rem; font-size: 2.5rem; } /* KORREKTUR: Alle Sektionstitel zentrieren */

/* Header mit Glassmorphism-Effekt */
.main-header {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.header-logo { max-height: 50px; width: auto; display: block; }

.nav-links { display: flex; list-style: none; }
.nav-links li { margin-left: 30px; }
.nav-links a { text-decoration: none; color: var(--secondary-color); font-weight: 600; transition: color 0.3s ease; position: relative; padding-bottom: 5px; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--primary-color); transition: width 0.3s ease; }
.nav-links a:hover { color: var(--primary-color); }
.nav-links a:hover::after { width: 100%; }

/* Hero Sektion mit Gradient und größerer Schrift */
.hero {
    text-align: center;
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1e293b 100%);
    color: var(--light-text-color);
}
.hero h1 { font-size: 3.8rem; margin-bottom: 1.5rem; line-height: 1.2; }
.hero p { font-size: 1.25rem; max-width: 650px; margin: 0 auto 2.5rem auto; color: #d1d5db; }
.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-family: var(--font-family-heading);
    font-weight: 700;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cta-button:hover { transform: translateY(-4px); box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3); }

/* Bento Grid Layout */
.app-showcase-section { background-color: var(--card-bg-color); }
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.bento-item {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 32px;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.bento-item:hover { transform: translateY(-8px); box-shadow: var(--shadow-medium); }
.bento-item-large { grid-column: span 2; }
.app-card-logo { max-height: 70px; width: auto; margin-bottom: 1.5rem; align-self: flex-start; }
.bento-content { display: flex; flex-direction: column; flex-grow: 1; }
.bento-content h3 { color: var(--secondary-color); margin-bottom: 0.5rem; }
.bento-content p { flex-grow: 1; }
.learn-more-link { display: inline-block; margin-top: 1rem; color: var(--primary-color); text-decoration: none; font-weight: 700; align-self: flex-start; }

/* Features & Kontakt */
.features-section { background-color: var(--background-color); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.feature-item { text-align: center; }
.contact-section-form { background-color: var(--card-bg-color); }
.contact-form { max-width: 600px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.form-group input, .form-group textarea {
    width: 100%; padding: 14px; border-radius: 8px; border: 1px solid #d1d5db;
    font-family: var(--font-family-base); font-size: 1rem; transition: all 0.3s ease;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2); }
.contact-form .cta-button { width: 100%; border: none; cursor: pointer; }

/* Footer & Mobile */
.main-footer { background: var(--secondary-color); color: #9ca3af; text-align: center; padding: 2.5rem 0; font-size: 0.9rem; }
.main-footer a { color: #9ca3af; text-decoration: none; transition: color 0.3s ease; }
.main-footer a:hover { color: var(--light-text-color); }

.hamburger { display: none; cursor: pointer; background: none; border: none; }
.hamburger span { display: block; width: 25px; height: 3px; background-color: var(--secondary-color); margin: 5px 0; }

@media (max-width: 768px) {
    h1 { font-size: 2.8rem !important; }
    section { padding: 80px 0; }
    .bento-grid { grid-template-columns: 1fr; }
    .bento-item-large { grid-column: span 1; }
    .nav-links { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: var(--card-bg-color); flex-direction: column; align-items: center; padding: 1rem 0; box-shadow: var(--shadow-medium); }
    .nav-links.active { display: flex; }
    .nav-links li { margin: 15px 0; }
    .hamburger { display: flex; flex-direction: column; gap: 0; }
}

/* Scroll-Animation */
.fade-in-section { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in-section.is-visible { opacity: 1; transform: translateY(0); }

/* ========================================= */
/* --- NEUE Stile für die App-Unterseiten --- */
/* ========================================= */
.app-hero { text-align: center; padding: 80px 0; background-color: var(--background-color); }
.app-hero h1 { font-size: 3.5rem; color: var(--secondary-color); }
.app-hero .subtitle { font-size: 1.5rem; color: var(--primary-color); font-weight: 600; margin-top: 0.5rem; margin-bottom: 1rem; }
.app-hero p { max-width: 600px; margin: 0 auto 2.5rem auto; }
.download-buttons { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.btn-appstore, .btn-playstore {
    display: flex; align-items: center; background-color: #000; color: #fff;
    padding: 10px 20px; border-radius: 8px; text-decoration: none; transition: transform 0.2s ease;
}
.btn-appstore:hover, .btn-playstore:hover { transform: scale(1.05); }
.btn-appstore div, .btn-playstore div { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.2; }
.btn-appstore span, .btn-playstore span { font-size: 0.8rem; }
.btn-appstore strong, .btn-playstore strong { font-size: 1.2rem; }
.apple-icon, .google-play-icon { width: 30px; height: 30px; margin-right: 15px; fill: #fff; }

.app-features { padding: 100px 0; background-color: #fff; }
.features-grid-app { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.feature-item-app { text-align: center; }
.feature-item-app h3 { margin-bottom: 0.5rem; }

.app-screenshot-section { padding: 40px 0; background-color: var(--background-color); text-align: center; }
.app-screenshot-placeholder {
    width: 100%; max-width: 800px; margin: 0 auto; background-color: #e9ecef;
    border: 1px dashed #d1d5db; border-radius: var(--border-radius); height: 450px;
    display: flex; align-items: center; justify-content: center; color: #6c757d; font-weight: 600;
}