:root {
    /* Light Mode */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0,0, 0.1);
    --accent: #f59e0b; /* Gold */
    --dark-blue: #1e3a8a;
}

html.dark {
    /* Dark Mode */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0,0, 0.2);
    --accent: #fbbf24;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

body.light { --scroll-behavior: smooth; }

a { color: var(--accent); text-decoration: none; }
button { cursor: pointer; border: none; }

/* Login */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    background: var(--bg-secondary);
    padding: 3rem 2rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 400px;
    width: 100%;
    border: 1px solid var(--border);
}

.login-card h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--dark-blue), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-card input {
    width: 100%;
    padding: 1rem;
    margin: 1rem 0;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border 0.3s ease;
}

.login-card input:focus {
    outline: none;
    border-color: var(--accent);
}

.login-card button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--dark-blue), var(--accent));
    color: white;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.login-card button:hover {
    transform: translateY(-2px);
}

.error { color: #ef4444; margin: 1rem 0; }
.demo { font-size: 0.9rem; color: var(--text-secondary); margin-top: 1rem; }

/* Nav */
nav {
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--dark-blue), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover {
    background: var(--accent);
    color: var(--bg-secondary);
}

.theme-toggle {
    background: none;
    width: 50px;
    height: 50px;
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.theme-toggle:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

/* Hero */
.hero {
    text-align: center;
    padding: 6rem 1rem 4rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--dark-blue), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Quick Links */
.quick-links {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    text-align: center;
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.15);
    border-color: var(--accent);
}

.card h3 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Sections */
section {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 1rem;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-blue);
}

/* Family Cards */
.family-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.family-card {
    text-align: center;
    padding: 2rem;
}

.family-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 4px solid var(--accent);
}

/* Galerie */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--accent);
    color: var(--bg-secondary);
    border-color: var(--accent);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 2rem;
    cursor: pointer;
}

/* Termine */
.calendar {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.event {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
}

.event:hover {
    background: var(--bg-primary);
}

.event:last-child { border-bottom: none; }

/* Kontakt */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.contact-form button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--dark-blue), var(--accent));
    color: white;
    border-radius: 12px;
    font-size: 1.1rem;
}

/* Upload */
.upload-area {
    background: var(--bg-secondary);
    padding: 3rem;
    border: 3px dashed var(--border);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.upload-area.dragover {
    border-color: var(--accent);
    background: var(--accent + 0.1);
}

#upload-form input[type="file"] {
    margin: 1rem 0;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}

footer a { margin: 0 1rem; }

/* Mobile */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Für Mobile: Hamburger später erweiterbar */
    }
    
    .hero {
        padding: 4rem 1rem 2rem;
    }
    
    .family-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-filters {
        flex-direction: column;
        align-items: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.family-card,
.gallery-item {
    animation: fadeInUp 0.6s ease forwards;
}