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

body {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
    color: #ffffff;
    overflow: hidden;
    min-height: 100vh;
    position: relative;
}

/* Cosmic Background */
#cosmic-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('./background.jpg') no-repeat center center;
    background-size: cover;
    z-index: -2;
    transition: filter 0.3s ease;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.8) 70%);
    z-index: -1;
}

/* Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Title */
h1 {
    font-size: clamp(1.5rem, 4vw, 3rem);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
    margin: 5px 0;
}

h1:nth-child(2) {
    font-size: clamp(1rem, 3vw, 2rem);
}

/* Controls */
#controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 10px auto;
}

label {
    font-size: clamp(0.8rem, 2vw, 1rem);
}

input {
    background: #2a2a2a;
    border: 1px solid #ffaa44;
    color: #ffffff;
    padding: 5px;
    border-radius: 5px;
    width: 40px;
    text-align: center;
    font-size: clamp(0.8rem, 2vw, 1rem);
}

button {
    background: linear-gradient(to bottom, #ffaa44, #ff7700);
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    text-shadow: 0 0 8px #ffaa44;
    font-size: clamp(0.8rem, 2vw, 1rem);
    transition: transform 0.2s;
}

button:hover {
    background: #ff9900;
    transform: scale(1.05);
}

/* Status */
#status {
    font-size: clamp(0.8rem, 2vw, 1rem);
    margin: 5px auto;
    opacity: 0;
    animation: fadeInOut 2s ease-in-out;
}

#status.win {
    opacity: 1;
    animation: none;
}

@keyframes fadeInOut {
    0% { opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; }
}

/* Step Counter */
#step-counter {
    font-size: clamp(0.8rem, 2vw, 1rem);
    margin: 5px auto;
}

/* Game Board */
#game {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    margin: 10px auto;
    width: 90%;
    max-width: 1200px;
    height: 50vh;
    min-height: 300px;
    position: relative;
}

/* Pegs (Beams of Light) */
.peg-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 33.33%;
}

.peg-label {
    font-size: clamp(0.8rem, 2vw, 1rem);
    margin-bottom: 5px;
    text-shadow: 0 0 10px #ffaa44, 0 0 20px #ffaa44;
}

.peg {
    width: 10px;
    height: 100%;
    min-height: 200px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.2));
    border-radius: 5px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 10px rgba(255, 170, 68, 0.3);
    position: relative;
    z-index: 1;
    animation: beamPulse 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

.peg:hover {
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.7), 0 0 15px rgba(255, 170, 68, 0.5);
}

.peg.selected {
    background: linear-gradient(to bottom, rgba(255, 170, 68, 0.3), rgba(255, 170, 68, 0.9), rgba(255, 170, 68, 0.3));
    box-shadow: 0 0 35px #ffaa44;
}

@keyframes beamPulse {
    0% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 10px rgba(255, 170, 68, 0.3); }
    50% { box-shadow: 0 0 30px rgba(255, 255, 255, 0.7), 0 0 15px rgba(255, 170, 68, 0.5); }
    100% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 10px rgba(255, 170, 68, 0.3); }
}

/* Discs (Milky Way Style) */
.disc {
    position: absolute;
    background: radial-gradient(circle at 30% 30%, #ffffff, #aaccff, #3366cc, #000033);
    border-radius: 50% 50% 10% 10%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 0 10px rgba(255, 255, 255, 0.6),
        inset 0 0 5px rgba(255, 255, 255, 0.3),
        5px 5px 15px rgba(0, 0, 0, 0.3);
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.4s ease;
    cursor: pointer;
    z-index: 2;
    background-image: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.2) 1px,
        transparent 1px
    );
    background-size: 5px 5px;
}

.disc:hover {
    transform: translateX(-50%) scale(1.05);
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.8),
        inset 0 0 5px rgba(255, 255, 255, 0.3),
        5px 5px 15px rgba(0, 0, 0, 0.3);
    animation: pulseGlow 1s ease-in-out infinite;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 15px rgba(255, 255, 255, 0.8), inset 0 0 5px rgba(255, 255, 255, 0.3); }
    50% { box-shadow: 0 0 25px rgba(255, 255, 255, 1), inset 0 0 8px rgba(255, 255, 255, 0.5); }
    100% { box-shadow: 0 0 15px rgba(255, 255, 255, 0.8), inset 0 0 5px rgba(255, 255, 255, 0.3); }
}

.disc.selected-disc {
    border-color: #ffffff;
    box-shadow: 
        0 0 20px #ffffff,
        inset 0 0 10px rgba(255, 255, 255, 0.5),
        5px 5px 15px rgba(0, 0, 0, 0.3);
    transform: translateX(-50%) scale(1.1);
}

.disc.bounce {
    animation: bounce 0.5s;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

.disc.trail::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255, 170, 68, 0.5), rgba(255, 170, 68, 0));
    left: -100%;
    top: 0;
    animation: trail 0.4s ease-out;
}

@keyframes trail {
    0% { left: -100%; opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

.disc.pullEffect {
    animation: pullIntoWormhole 5s ease-in forwards;
    position: fixed; /* Allow movement into wormhole container */
    z-index: 11; /* Above wormhole */
}

@keyframes pullIntoWormhole {
    0% {
        left: var(--start-x);
        top: var(--start-y);
        transform: scale(1);
        opacity: 1;
    }
    60% {
        left: 50%;
        top: 50%;
        transform: scale(1) rotate(180deg);
        opacity: 1;
    }
    100% {
        left: 50%;
        top: 50%;
        transform: scale(0.1) rotate(360deg);
        opacity: 0.3;
        background: radial-gradient(circle, rgba(255, 170, 68, 0.8), transparent);
    }
}

/* Enhanced Win Animation (Realistic Wormhole) */
.wormhole {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    background: radial-gradient(
        circle at center,
        rgba(0, 0, 0, 1) 0%,
        rgba(0, 0, 0, 0.9) 20%,
        rgba(255, 170, 68, 0.6) 40%,
        transparent 70%
    ); /* Event horizon and accretion disc */
    border: 2px solid #ffaa44;
    border-radius: 50%;
    box-shadow: 0 0 30px #ffaa44, 0 0 50px rgba(255, 170, 68, 0.5), inset 0 0 20px #ffaa44;
    z-index: 10;
    animation: wormholeExpand 10s ease-out forwards, lensingEffect 2s ease-in-out infinite;
}

.wormhole::before, .wormhole::after {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: swirl 5s linear infinite;
    z-index: 9;
}

.wormhole::after {
    animation-direction: reverse;
    opacity: 0.5;
}

@keyframes wormholeExpand {
    0% {
        width: 50px;
        height: 50px;
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        width: 300px;
        height: 300px;
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 1;
    }
    100% {
        width: 400px;
        height: 400px;
        transform: translate(-50%, -50%) scale(2);
        opacity: 0.7;
    }
}

@keyframes lensingEffect {
    0% { border-radius: 50% 60% 50% 60%; }
    50% { border-radius: 60% 50% 60% 50%; }
    100% { border-radius: 50% 60% 50% 60%; }
}

@keyframes swirl {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Background Gravitational Lensing */
body:hover #cosmic-background {
    filter: blur(2px) hue-rotate(10deg);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    #game {
        flex-direction: column;
        align-items: center;
        height: 60vh;
        padding: 10px 0;
    }

    .peg-container {
        margin: 10px 0;
        width: 80%;
    }

    .peg {
        height: 150px;
        min-height: 150px;
    }

    .disc {
        height: 16px;
    }
}