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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #000;
    color: #fff;
    overflow: hidden;
}

.page {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page.hidden {
    display: none;
}

.guide-content {
    text-align: center;
    max-width: 600px;
    padding: 40px;
}

.guide-content h1 {
    font-size: 48px;
    font-weight: 300;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 18px;
    color: #888;
    margin-bottom: 48px;
}

.button-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
}

button {
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.primary-btn {
    background-color: #fff;
    color: #000;
}

.primary-btn:hover {
    background-color: #e0e0e0;
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: #333;
    color: #fff;
}

.secondary-btn:hover {
    background-color: #444;
    transform: translateY(-2px);
}

.instructions {
    text-align: left;
    background-color: #111;
    padding: 24px;
    border-radius: 12px;
}

.instructions h2 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 16px;
    color: #fff;
}

.instructions ul {
    list-style: none;
}

.instructions li {
    font-size: 14px;
    color: #aaa;
    padding: 8px 0;
    line-height: 1.6;
}

.instructions li::before {
    content: "•";
    color: #fff;
    margin-right: 12px;
}

.test-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.text-test {
    font-size: 120px;
    font-weight: bold;
    text-align: center;
    letter-spacing: 8px;
}