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

:root {
    --bg: #0a0a0a;
    --text: #e0e0e0;
    --dim: #666;
    --accent: #00ff88;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

main {
    text-align: center;
    padding: 2rem;
    max-width: 500px;
}

/* Heartbeat animation */
.heartbeat {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 2rem;
}

.beat {
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    animation: heartbeat 1.5s ease-in-out infinite;
}

.beat:nth-child(2) {
    animation-delay: 0.2s;
}

.beat:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes heartbeat {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.3;
    }
    50% { 
        transform: scale(1.3);
        opacity: 1;
    }
}

h1 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.tagline {
    color: var(--accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 2rem;
}

.description {
    color: var(--dim);
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: 2rem;
}

/* Status indicator */
.status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--dim);
    font-size: 0.8rem;
    margin-bottom: 3rem;
    padding: 0.5rem 1rem;
    border: 1px solid #222;
    border-radius: 20px;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    margin-bottom: 1px;
}

@keyframes pulse {
    0%, 100% { 
        box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.4);
    }
    50% { 
        box-shadow: 0 0 0 8px rgba(0, 255, 136, 0);
    }
}

nav {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

nav a {
    color: var(--dim);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color 0.3s ease, transform 0.2s ease;
}

nav a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* Ripple effect */
@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(4);
        opacity: 0;
    }
}