:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #808080;
    --card-bg: #1e1e1e;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 20px;
    box-sizing: border-box;
}

.content {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    text-align: center;
    border: 1px solid #333;
}

.icon-box {
    margin-bottom: 20px;
    color: var(--accent-color);
    animation: rotate 10s linear infinite;
}

h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

p {
    font-size: 1.1rem;
    color: var(--accent-color);
    margin-bottom: 30px;
    line-height: 1.5;
}

/* Animation classes */
.hidden {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loader decoration */
.loader-line {
    height: 4px;
    width: 100%;
    background-color: #333;
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.loader-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background-color: var(--text-color);
    border-radius: 2px;
    animation: loading 2s ease-in-out infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes loading {
    0% { left: -30%; }
    50% { left: 100%; }
    100% { left: -30%; }
}