:root {
    --primary-color: #00a859;
    --secondary-color: #0072bc;
    --bg-color: #f7f9fc;
    --text-color: #333;
    --header-height: 70px;
    --footer-height: 50px;
}

* {
    box-sizing: border-box;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100%;
}

/* Fixierter Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-right img {
    height: 45px;
    width: auto;
    border-radius: 10px;
}

.header-right h1 {
    font-size: 1.4rem;
    margin: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

/* Hamburger Menu */
.hamburger {
    cursor: pointer;
    background: none;
    border: none;
    color: var(--secondary-color);
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.hamburger:hover {
    color: var(--primary-color);
}

nav {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 280px;
    height: calc(100% - var(--header-height) - var(--footer-height));
    background: white;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    display: flex;
    flex-direction: column;
    padding-top: 20px;
    overflow-y: auto;
}

nav.open {
    left: 0;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    padding: 18px 30px;
    font-size: 1.2rem;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s;
    font-weight: 500;
}

nav a:hover, nav a.active {
    background: #f8fcf9;
    color: var(--primary-color);
    padding-left: 35px;
}

/* Scrollbarer Inhalt */
main {
    margin-top: var(--header-height);
    margin-bottom: var(--footer-height);
    padding: 40px 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeIn 0.4s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Fixierter Footer */
footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--footer-height);
    background: white;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* Komponenten */
.card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    margin-bottom: 25px;
    line-height: 1.6;
}

h2 {
    color: var(--secondary-color);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 8px;
    display: inline-block;
    margin-top: 0;
}

h3 {
    color: var(--secondary-color);
    margin-top: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 30px;
    text-decoration: none;
    color: white;
    font-weight: bold;
    margin: 10px;
    transition: all 0.2s;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

.btn-download { background: linear-gradient(135deg, var(--primary-color), #00c868); }
.btn-playstore { background: linear-gradient(135deg, var(--secondary-color), #008be5); }
.btn-paypal { background: #ffc439; color: #003087; font-size: 1.1rem; }
.btn-paypal:hover { background: #ffb300; }

.hero { text-align: center; margin-bottom: 40px; }
.hero img {
    max-width: 180px;
    border-radius: 25px;
    box-shadow: 0 15px 30px rgba(0,168,89,0.2);
    margin-bottom: 25px;
}

.hero h2 { border: none; font-size: 2rem; margin-bottom: 10px; }

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.benefits-list li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.impressum-text { font-size: 0.95rem; }