body {
    background: #f8f9fa;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.logo {
    margin: 0 0 2.5rem 0;
    text-align: center;
}

.logo img {
    max-width: 280px;
    height: auto;
}

.content {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.content > p:first-of-type {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.privacy-note {
    color: #5a6c7d;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.input.is-large {
    margin-bottom: 1rem;
    border: 2px solid #e1e8ed;
    font-size: 1.2rem;
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

.input.is-large:focus {
    border-color: #3273dc;
    box-shadow: 0 0 0 3px rgba(50, 115, 220, 0.1);
}

.crack-time {
    font-size: 1rem;
    margin: 1rem 0 1.5rem 0;
    padding: 1rem;
    background: #f0f7ff;
    border-left: 4px solid #3273dc;
    border-radius: 4px;
}

.control {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e1e8ed;
}

.select select {
    border-radius: 6px;
    border: 1.5px solid #e1e8ed;
}

.button.is-info {
    border-radius: 6px;
    font-weight: 600;
    padding: 0.5rem 1.5rem;
    transition: all 0.2s ease;
}

.button.is-info:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(50, 115, 220, 0.3);
}

.faq {
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 2px solid #e1e8ed;
}

.faq h2 {
    font-size: 1.35rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: #2c3e50;
}

.faq h2:first-of-type {
    margin-top: 0;
}

.faq p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #4a5568;
    margin-bottom: 1.5rem;
}

.faq a {
    color: #3273dc;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.faq a:hover {
    border-bottom-color: #3273dc;
}

.footer {
    margin-top: 3rem;
    padding: 2rem 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.footer p {
    font-size: 0.9rem;
    text-align: center;
    color: #5a6c7d;
    margin: 0.5rem 0;
    line-height: 1.6;
}

.footer .disclaimer {
    font-size: 0.85rem;
    color: #718096;
    font-style: italic;
}

.footer a {
    color: #3273dc;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .content {
        padding: 1.5rem;
    }

    .control {
        flex-direction: column;
    }

    .select, .button {
        width: 100%;
    }

    .faq p {
        font-size: 1rem;
    }
}