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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Jahreszeiten-Hintergründe */
body.winter {
    background: linear-gradient(135deg, #90caf9 0%, #90aafa 25%, #42a5f5 50%, #1e88e5 75%, #1565c0 100%);
}

body.spring {
    background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 25%, #fd79a8 50%, #a29bfe 75%, #74b9ff 100%);
}

body.summer {
    background: linear-gradient(135deg, #fdcb6e 0%, #fd79a8 25%, #6c5ce7 50%, #74b9ff 75%, #00cec9 100%);
}

body.autumn {
    background: linear-gradient(135deg, #ff9a76 0%, #ff7675 25%, #fdcb6e 50%, #ffeaa7 75%, #fab1a0 100%);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Partikel */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    font-size: 20px;
    user-select: none;
}

.particle.winter {
    animation: floatWinter 15s infinite linear;
}

@keyframes floatWinter {
    0% { transform: translateY(0) translateX(0) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) translateX(100px) rotate(360deg); opacity: 0.8; }
}

.particle.spring {
    animation: floatSpring 18s infinite linear;
}

@keyframes floatSpring {
    0% { transform: translateY(0) translateX(0) rotate(0deg) scale(0.8); opacity: 1; }
    25% { transform: translateY(25vh) translateX(-30px) rotate(90deg) scale(1); }
    50% { transform: translateY(50vh) translateX(30px) rotate(180deg) scale(0.9); }
    75% { transform: translateY(75vh) translateX(-20px) rotate(270deg) scale(1.1); }
    100% { transform: translateY(100vh) translateX(40px) rotate(360deg) scale(0.8); opacity: 0.8; }
}

.particle.summer {
    animation: floatSummer 20s infinite linear;
}

@keyframes floatSummer {
    0% { transform: translateY(0) translateX(0) scale(1); opacity: 0.9; }
    25% { transform: translateY(-25vh) translateX(50px) scale(1.2); }
    50% { transform: translateY(-50vh) translateX(-30px) scale(0.8); }
    75% { transform: translateY(-75vh) translateX(60px) scale(1.1); }
    100% { transform: translateY(-100vh) translateX(-40px) scale(1); opacity: 0.7; }
}

.particle.autumn {
    animation: floatAutumn 16s infinite linear;
}

@keyframes floatAutumn {
    0% { transform: translateY(0) translateX(0) rotate(0deg); opacity: 1; }
    20% { transform: translateY(20vh) translateX(-50px) rotate(45deg); }
    40% { transform: translateY(40vh) translateX(30px) rotate(180deg); }
    60% { transform: translateY(60vh) translateX(-40px) rotate(270deg); }
    80% { transform: translateY(80vh) translateX(50px) rotate(450deg); }
    100% { transform: translateY(100vh) translateX(-30px) rotate(720deg); opacity: 0.8; }
}

/* Karten-Basis */
.card, .content-card {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(25px);
    border-radius: 30px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.3) inset;
    text-align: center;
    animation: cardFadeIn 1s ease-out;
}

.card {
    padding: 60px 80px;
    max-width: 600px;
    width: 90%;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.content-card {
    padding: 50px 60px;
    max-width: 900px;
    width: 100%;
    text-align: left;
}

.content-card h1 {
    font-size: 42px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 30px;
    letter-spacing: 1px;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
    background: none;
    -webkit-text-fill-color: #ffffff;
    filter: none;
    animation: none;
}

body.winter .card,
body.winter .content-card {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(30px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.4) inset;
}

body.autumn .card,
body.autumn .content-card {
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(30px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

@keyframes cardFadeIn {
    from { opacity: 0; transform: translateY(30px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

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

/* Profil */
.profile-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto 30px;
    animation: profilePulse 3s ease-in-out infinite;
}

@keyframes profilePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.profile-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 300% 300%;
    animation: ringRotate 3s linear infinite;
    filter: blur(5px);
}

@keyframes ringRotate {
    0% { background-position: 0% 50%; transform: rotate(0deg); }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; transform: rotate(360deg); }
}

.profile-image {
    position: relative;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 72px;
    color: white;
    font-weight: bold;
}

/* Typografie */
.name, h1 {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    animation: nameGlow 2s ease-in-out infinite alternate;
    letter-spacing: 2px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

h1 {
    font-size: 42px;
    margin-bottom: 30px;
}

@keyframes nameGlow {
    from { filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.6)) drop-shadow(0 0 5px rgba(255, 255, 255, 0.5)); }
    to { filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.8)) drop-shadow(0 0 20px rgba(255, 255, 255, 0.8)); }
}

.subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 40px;
    font-weight: 400;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

h2 {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.98);
    margin-top: 25px;
    margin-bottom: 10px;
    font-weight: 600;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

h3 {
    color: rgba(255, 255, 255, 0.95);
    margin-top: 25px;
    margin-bottom: 10px;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

p, li {
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.8;
    margin-bottom: 15px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    font-size: 16px;
}

strong {
    color: rgba(255, 255, 255, 1);
    font-weight: 600;
}

/* Links */
.footer-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

.footer-link, .back-link {
    position: relative;
    color: white;
    text-decoration: none;
    padding: 12px 30px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    font-weight: 500;
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.footer-link {
    overflow: hidden;
}

.footer-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.footer-link:hover::before {
    width: 300px;
    height: 300px;
}

.footer-link:hover, .back-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.3);
}

.footer-link span {
    position: relative;
    z-index: 1;
}

.back-link {
    display: inline-block;
    margin-top: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    .card {
        padding: 40px 30px;
    }

    .content-card {
        padding: 40px 30px;
    }

    .name {
        font-size: 36px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 12px;
    }

    p, li {
        font-size: 14px;
    }

    .profile-container {
        width: 150px;
        height: 150px;
    }

    .profile-image {
        width: 150px;
        height: 150px;
        font-size: 54px;
    }

    .footer-links {
        flex-direction: column;
        gap: 15px;
    }

    .particle {
        font-size: 16px;
    }
}

ul {
    margin-left: 2rem;
}

a {
    color: #dfe7ed;
}