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

body {
    font-family: 'Orbitron', monospace;
    background: linear-gradient(45deg, #0a0a0a, #1a1a2e, #16213e, #0f3460);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    overflow: hidden;
    height: 100vh;
    color: #00ffff;
}

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

.container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

/* Animated Triangles */
.triangles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.triangle {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 25px solid transparent;
    border-right: 25px solid transparent;
    border-bottom: 50px solid;
    animation: float 6s ease-in-out infinite;
}

.triangle-1 {
    border-bottom-color: #ff00ff;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.triangle-2 {
    border-bottom-color: #00ff00;
    top: 60%;
    left: 80%;
    animation-delay: 1s;
}

.triangle-3 {
    border-bottom-color: #ffff00;
    top: 30%;
    right: 20%;
    animation-delay: 2s;
}

.triangle-4 {
    border-bottom-color: #ff4500;
    bottom: 20%;
    left: 30%;
    animation-delay: 3s;
}

.triangle-5 {
    border-bottom-color: #00bfff;
    top: 70%;
    left: 60%;
    animation-delay: 4s;
}

.triangle-6 {
    border-bottom-color: #ff1493;
    top: 10%;
    left: 70%;
    animation-delay: 5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* 3D Floating Elements */
.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.cube {
    position: absolute;
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, #ff00ff, #00ffff);
    animation: rotate3d 8s linear infinite;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.cube-1 {
    top: 25%;
    left: 15%;
    animation-delay: 0s;
}

.cube-2 {
    top: 65%;
    right: 25%;
    animation-delay: 2s;
}

.cube-3 {
    bottom: 30%;
    left: 70%;
    animation-delay: 4s;
}

.sphere {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, #ffff00, #ff4500);
    animation: bounce3d 6s ease-in-out infinite;
    box-shadow: 0 0 15px rgba(255, 255, 0, 0.6);
}

.sphere-1 {
    top: 40%;
    right: 15%;
    animation-delay: 1s;
}

.sphere-2 {
    bottom: 40%;
    left: 20%;
    animation-delay: 3s;
}

@keyframes rotate3d {
    0% {
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    100% {
        transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg);
    }
}

@keyframes bounce3d {
    0%, 100% {
        transform: translateY(0px) scale(1);
    }
    50% {
        transform: translateY(-30px) scale(1.2);
    }
}

/* Main Content */
.content {
    text-align: center;
    z-index: 10;
    position: relative;
    animation: fadeInUp 2s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    margin-bottom: 2rem;
}

.title {
    font-size: 4rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    background: linear-gradient(45deg, #00ffff, #ff00ff, #ffff00, #00ff00);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGlow 3s ease-in-out infinite alternate, gradientText 4s ease infinite;
    text-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
    margin-bottom: 1rem;
}

@keyframes textGlow {
    from {
        text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    }
    to {
        text-shadow: 0 0 40px rgba(255, 0, 255, 0.8);
    }
}

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

.subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: #00ff00;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.8;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.description {
    margin: 2rem 0;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #ffffff;
    opacity: 0.9;
}

.description p {
    margin: 0.5rem 0;
    animation: slideIn 1s ease-out 0.5s both;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 0.9;
        transform: translateX(0);
    }
}

/* Progress Bar */
.progress-bar {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    margin: 2rem auto;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00ffff, #ff00ff, #ffff00);
    background-size: 200% 100%;
    animation: progressFill 3s ease-in-out infinite, progressGradient 2s ease infinite;
    border-radius: 2px;
}

@keyframes progressFill {
    0% { width: 0%; }
    50% { width: 100%; }
    100% { width: 0%; }
}

@keyframes progressGradient {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* Countdown */
.countdown {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.countdown-item {
    text-align: center;
    animation: countdownFloat 3s ease-in-out infinite;
}

.countdown-item:nth-child(1) { animation-delay: 0s; }
.countdown-item:nth-child(2) { animation-delay: 0.5s; }
.countdown-item:nth-child(3) { animation-delay: 1s; }
.countdown-item:nth-child(4) { animation-delay: 1.5s; }

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

.number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #00ffff;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.label {
    font-size: 0.9rem;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

/* Particle System */
#particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .countdown {
        gap: 1rem;
    }
    
    .number {
        font-size: 2rem;
    }
    
    .progress-bar {
        width: 250px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .countdown {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .countdown-item {
        min-width: 60px;
    }
}