body {
    background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
    color: var(--text-primary);
    transition: background var(--transition-slow), color var(--transition-slow);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
    z-index: -3;
}

/* RGB pulse background for party mode */
[data-theme="party"] body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        45deg,
        #FF00FF 0%,
        #00FFFF 25%,
        #FF00FF 50%,
        #00FF00 75%,
        #FF00FF 100%
    );
    background-size: 400% 400%;
    animation: rgbPulse 8s ease infinite;
    opacity: 0.1;
    z-index: -2;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-align: center;
    background: linear-gradient(45deg, var(--accent-neon), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGlow 2s ease-in-out infinite alternate;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--accent-neon);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 10px;
}

.btn-primary {
    background: var(--accent-neon);
    color: #000;
    border-color: var(--accent-neon);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 243, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-neon);
    border-color: var(--accent-neon);
}

.btn-secondary:hover {
    background: var(--accent-neon);
    color: #000;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 243, 255, 0.4);
}

/* Strobe light effect */
body.strobe-active::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    opacity: 0;
    z-index: 9997;
    pointer-events: none;
    animation: strobeFlash 0.2s infinite alternate;
}

@keyframes strobeFlash {
    0% { opacity: 0; }
    50% { opacity: 0.8; background: #FFFFFF; }
    51% { opacity: 0.8; background: #FF00FF; }
    52% { opacity: 0.8; background: #00FFFF; }
    100% { opacity: 0; }
}

/* Text glow animation */
@keyframes textGlow {
    from {
        text-shadow: 0 0 5px rgba(0, 243, 255, 0.5);
    }
    to {
        text-shadow: 0 0 20px rgba(0, 243, 255, 0.8), 0 0 30px rgba(255, 0, 255, 0.6);
    }
}

/* Floating particle animation */
.floating-particle {
    pointer-events: none;
}

@keyframes floatParticle {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 0.2;
    }
    25% {
        opacity: 0.8;
    }
    50% {
        transform: translate(100px, -100px) rotate(180deg) scale(1.2);
        opacity: 0.5;
    }
    75% {
        opacity: 0.8;
    }
    100% {
        transform: translate(0, 0) rotate(360deg) scale(1);
        opacity: 0.2;
    }
}

/* Confetti animation */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    background-color: #f00;
    opacity: 0.8;
    z-index: 9999;
    animation: confettiFall 5s linear forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}