:root {
    --bg-color: #030305;
    --neon-blue: #00f3ff;
    --neon-orange: #ff4d00;
    --neon-red: #ff003c;
    --text-primary: #ffffff;
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    overflow: hidden;
    font-family: 'Oswald', sans-serif;
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.content-wrapper {
    position: relative;
    z-index: 3;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    pointer-events: auto; /* Allow interaction with text if desired */
    user-select: none;
}

.glitch-title {
    font-family: 'Bangers', cursive;
    font-size: 8rem;
    margin: 0;
    letter-spacing: 5px;
    text-transform: uppercase;
    position: relative;
    text-shadow: 0 0 10px var(--neon-blue),
                 0 0 20px var(--neon-blue),
                 0 0 40px var(--neon-blue),
                 0 0 80px var(--neon-blue);
    animation: pulse 2s infinite alternate, float 6s ease-in-out infinite;
    cursor: default;
}

.subtitle {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 4px;
    margin: 0;
    text-transform: uppercase;
    text-shadow: 0 0 5px var(--neon-orange),
                 0 0 10px var(--neon-orange),
                 0 0 20px var(--neon-orange);
    animation: float-delayed 6s ease-in-out infinite;
}

/* Animations */
@keyframes pulse {
    0% {
        text-shadow: 0 0 10px var(--neon-blue),
                     0 0 20px var(--neon-blue),
                     0 0 40px var(--neon-blue);
        transform: scale(1);
    }
    100% {
        text-shadow: 0 0 20px var(--neon-blue),
                     0 0 40px var(--neon-blue),
                     0 0 80px var(--neon-blue),
                     0 0 110px var(--neon-blue);
        transform: scale(1.03);
    }
}

@keyframes float {
    0% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-15px) scale(1.01); }
    100% { transform: translateY(0px) scale(1); }
}

@keyframes float-delayed {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

/* Responsiveness for smaller screens */
@media (max-width: 768px) {
    .glitch-title { font-size: 5rem; }
    .subtitle { font-size: 1.2rem; }
}

@media (max-width: 480px) {
    .glitch-title { font-size: 3.5rem; letter-spacing: 2px; }
    .subtitle { font-size: 0.9rem; letter-spacing: 2px; }
}

/* Background Slideshow */
.bg-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Overlay noch etwas durchsichtiger in der Mitte, für dunkle Bilder */
    background: radial-gradient(circle, rgba(3,3,5,0) 0%, rgba(3,3,5,0.85) 100%);
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    animation: kenburns 30s infinite;
}

/* Bilder im Unterordner "bilder" referenzieren */
.bg-1 { background-image: url('bilder/1.jpg'); animation-delay: 0s; }
.bg-2 { background-image: url('bilder/2.jpg'); animation-delay: 6s; }
.bg-3 { background-image: url('bilder/3.jpg'); animation-delay: 12s; }
.bg-4 { background-image: url('bilder/4.jpg'); animation-delay: 18s; }
.bg-5 { background-image: url('bilder/5.jpg'); animation-delay: 24s; }

@keyframes kenburns {
    0% { opacity: 0; transform: scale(1); filter: blur(5px); }
    8% { opacity: 0.8; filter: blur(0px); }
    20% { opacity: 0.8; filter: blur(0px); }
    30% { opacity: 0; transform: scale(1.15); filter: blur(5px); }
    100% { opacity: 0; transform: scale(1.15); }
}

/* Start Overlay für Audio */
.start-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    background-color: rgba(3, 3, 5, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--neon-blue);
    font-size: 2rem;
    font-family: 'Oswald', sans-serif;
    cursor: pointer;
    transition: opacity 1s ease-out;
    letter-spacing: 5px;
    text-align: center;
    text-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
    animation: pulse 2s infinite alternate;
}

/* Sound Controls */
.sound-controls {
    position: absolute;
    top: 30px;
    right: 40px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0; 
    transition: opacity 1s ease-in;
    pointer-events: none; /* Aktivieren, sobald sichtbar */
}

.sound-controls.visible {
    opacity: 1;
    pointer-events: auto;
}

.sound-btn {
    background: transparent;
    border: none;
    color: var(--neon-blue);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 5px var(--neon-blue)) drop-shadow(0 0 10px var(--neon-blue));
    transition: transform 0.2s, filter 0.2s, color 0.3s;
}

.sound-btn:hover {
    transform: scale(1.1);
    filter: drop-shadow(0 0 10px var(--neon-blue)) drop-shadow(0 0 20px var(--neon-blue));
}

/* Wenn Stummgeschaltet, schalte auf Neon Rot */
.sound-btn.muted {
    color: var(--neon-red);
    filter: drop-shadow(0 0 5px var(--neon-red)) drop-shadow(0 0 10px var(--neon-red));
}
.sound-btn.muted:hover {
    filter: drop-shadow(0 0 10px var(--neon-red)) drop-shadow(0 0 20px var(--neon-red));
}

.volume-slider {
    -webkit-appearance: none;
    width: 100px;
    background: transparent;
}
.volume-slider:focus { outline: none; }

.volume-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: rgba(0, 243, 255, 0.3);
    border-radius: 2px;
    box-shadow: 0 0 5px var(--neon-blue);
    transition: background 0.3s, box-shadow 0.3s;
}

.volume-slider::-webkit-slider-thumb {
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: var(--neon-blue);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -6px;
    box-shadow: 0 0 10px var(--neon-blue), 0 0 20px var(--neon-blue);
    transition: background 0.3s, box-shadow 0.3s;
}

.volume-slider.muted::-webkit-slider-runnable-track {
    background: rgba(255, 0, 60, 0.3);
    box-shadow: 0 0 5px var(--neon-red);
}
.volume-slider.muted::-webkit-slider-thumb {
    background: var(--neon-red);
    box-shadow: 0 0 10px var(--neon-red), 0 0 20px var(--neon-red);
}

/* Lightning Flash / Impact Overlay */
.lightning-flash {
    position: absolute;
    top: 0; 
    left: 0;
    width: 100%; 
    height: 100%;
    background-color: white;
    z-index: 50;
    opacity: 0;
    pointer-events: none;
}

.lightning-flash.flash {
    animation: flashAnim 0.8s ease-out forwards;
}

@keyframes flashAnim {
    0% { opacity: 0.4; }
    15% { opacity: 0.8; }
    100% { opacity: 0; }
}