:root {
    /* По умолчанию темная тема */
    --button-bg: rgba(255, 255, 255, 0.05);
    --button-border: rgba(255, 255, 255, 0.1);
    --button-hover-bg: rgba(255, 255, 255, 0.1);
    --button-text-color: #e0e0e0;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --button-bg: rgba(255, 255, 255, 0.6);
        --button-border: rgba(0, 0, 0, 0.1);
        --button-hover-bg: #fff;
        --button-text-color: #333;
    }
}

body[data-theme='light'] {
    --button-bg: rgba(255, 255, 255, 0.2);
    --button-border: rgba(0, 0, 0, 0.2);
    --button-hover-bg: rgba(255, 255, 255, 0.4);
    --button-text-color: #333;
}

body[data-theme='dark'] {
    --button-bg: rgba(255, 255, 255, 0.05);
    --button-border: rgba(255, 255, 255, 0.1);
    --button-hover-bg: rgba(255, 255, 255, 0.1);
    --button-text-color: #e0e0e0;
}

.content-wrapper {
    background-color: var(--button-bg);
    border: 1px solid var(--button-border);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--button-text-color);
    width: 90%;
    max-width: 400px;
}

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

.buttons-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
}

.button {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 220px;
    height: 80px;
    background: var(--button-bg);
    border: 1px solid var(--button-border);
    border-radius: 15px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    font-size: 18px;
    font-weight: 500;
    color: var(--button-text-color);
    text-decoration: none;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    cursor: pointer;
    text-align: center;
}

.button:hover {
    background: var(--button-hover-bg);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.button-blurred span {
    filter: blur(4px);
    user-select: none;
    color: rgba(224, 224, 224, 0.6);
}

@media (min-width: 768px) {
    .buttons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .button {
        font-size: 20px;
    }
}