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

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    overflow-x: hidden;
    position: relative;
}

.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0,255,0,0.1) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 3s ease-in-out infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.3; }
    100% { opacity: 0.7; }
}

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

/* Header */
.header {
    padding: 2rem 0;
    text-align: center;
    border-bottom: 2px solid #333;
}

.logo {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    animation: rainbow 3s ease-in-out infinite;
}

@keyframes rainbow {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(180deg); }
}

.subtitle {
    font-size: 1.2rem;
    color: #888;
    font-family: 'JetBrains Mono', monospace;
}

/* Main Content */
.main {
    padding: 3rem 0;
}

.hero {
    margin-bottom: 4rem;
}

.warning-box {
    background: linear-gradient(135deg, #ff416c, #ff4b2b);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(255, 65, 108, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    0% { box-shadow: 0 10px 30px rgba(255, 65, 108, 0.3); }
    100% { box-shadow: 0 15px 40px rgba(255, 65, 108, 0.6); }
}

.warning-box h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.warning-box p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.evidence {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

/* Coins Section */
.coins-section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: 'Noto Sans KR', sans-serif;
}

.tab-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.tab-btn.active {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    transform: scale(1.05);
}

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

.coin-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: 15px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.coin-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #ff6b6b, transparent);
    animation: scan 3s linear infinite;
}

@keyframes scan {
    0% { left: -100%; }
    100% { left: 100%; }
}

.coin-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.coin-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.coin-icon {
    font-size: 2rem;
    margin-right: 1rem;
}

.coin-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
}

.coin-symbol {
    color: #888;
    font-family: 'JetBrains Mono', monospace;
}

.death-probability {
    background: linear-gradient(45deg, #ff4757, #ff3838);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-left: auto;
}

.coin-description {
    color: #ccc;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.death-reasons {
    margin-bottom: 1rem;
}

.death-reasons h4 {
    color: #ff6b6b;
    margin-bottom: 0.5rem;
}

.reason-tag {
    display: inline-block;
    background: rgba(255, 107, 107, 0.2);
    color: #ff6b6b;
    padding: 0.25rem 0.5rem;
    border-radius: 10px;
    font-size: 0.8rem;
    margin: 0.25rem 0.25rem 0 0;
}

.coin-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #888;
    font-family: 'JetBrains Mono', monospace;
}

/* Prediction Section */
.prediction-section {
    margin-bottom: 4rem;
}

.prediction-box {
    background: linear-gradient(135deg, rgba(76, 201, 240, 0.1), rgba(67, 206, 162, 0.1));
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid rgba(76, 201, 240, 0.3);
}

.prediction-box h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: #4ecdc4;
}

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

.method-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.method-item .icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.method-item h4 {
    color: #4ecdc4;
    margin-bottom: 0.5rem;
}

.method-item p {
    color: #ccc;
    line-height: 1.4;
}

/* Submit Section */
.submit-section {
    margin-bottom: 4rem;
}

.submit-box {
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(238, 90, 36, 0.1));
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid rgba(255, 107, 107, 0.3);
}

.submit-box h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #ff6b6b;
}

.submit-btn {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    border: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    font-size: 1.1rem;
    cursor: pointer;
    margin-top: 1rem;
    transition: all 0.3s ease;
    font-family: 'Noto Sans KR', sans-serif;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.4);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid #333;
}

.footer p {
    margin-bottom: 0.5rem;
    color: #888;
}

.disclaimer {
    font-size: 0.9rem;
    color: #666 !important;
}

/* Floating Elements */
.floating-skull {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 3rem;
    animation: float 3s ease-in-out infinite;
    cursor: pointer;
    z-index: 1000;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Responsive */
@media (max-width: 768px) {
    .logo {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .coins-grid {
        grid-template-columns: 1fr;
    }

    .methodology {
        grid-template-columns: 1fr;
    }

    .filter-tabs {
        flex-direction: column;
        align-items: center;
    }
}