* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Poppins", ui-sans-serif, system-ui, sans-serif;
    background: #eef0ff;
    color: #111827;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}
main {
    max-width: 640px;
    width: 100%;
    text-align: center;
}
h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #0038f6;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}
h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0038f6;
    margin: 2rem 0 1rem;
    text-align: left;
}
.subtitle {
    font-size: 1.15rem;
    font-weight: 400;
    color: #374151;
    margin-bottom: 2.5rem;
}
.version {
    font-size: 0.8rem;
    font-weight: 400;
    color: #9ca3af;
    margin-bottom: 2rem;
}
.platform-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: #6b7280;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.install-box {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.25rem 3.5rem 1.25rem 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    text-align: left;
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.07),
        0 2px 4px -2px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.2s;
}
.install-box:hover {
    box-shadow:
        0 10px 15px -3px rgba(0, 56, 246, 0.1),
        0 4px 6px -4px rgba(0, 56, 246, 0.1);
}
.install-box code {
    font-family: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
    font-size: 0.9rem;
    color: #0038f6;
    word-break: break-all;
    user-select: all;
    font-weight: 500;
}
.copy-btn {
    position: absolute;
    top: 50%;
    right: 0.75rem;
    transform: translateY(-50%);
    background: #0038f6;
    border: none;
    color: #ffffff;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: "Poppins", sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    transition: background 0.15s;
}
.copy-btn:hover {
    background: #0030d4;
}
.copy-btn.copied {
    background: #36a088;
}
.install-path {
    font-size: 0.9rem;
    color: #6b7280;
    margin-top: 1.25rem;
}
.install-path code {
    font-family: "SF Mono", "Fira Code", monospace;
    color: #0038f6;
    font-size: 0.85rem;
    font-weight: 500;
}
.toggle {
    background: none;
    border: none;
    color: #0038f6;
    cursor: pointer;
    font-family: "Poppins", sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 0.5rem;
    padding: 0;
}
.toggle:hover {
    text-decoration: underline;
}
.links {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: #6b7280;
}
.links a {
    color: #0038f6;
    text-decoration: none;
    font-weight: 500;
}
.links a:hover {
    text-decoration: underline;
}
.hidden {
    display: none;
}
.badge {
    display: inline-block;
    background: #0038f6;
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    margin-left: 0.5rem;
    vertical-align: middle;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.guide {
    text-align: left;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
}
.guide ol {
    padding-left: 1.5rem;
    margin: 0.75rem 0;
}
.guide li {
    font-size: 0.95rem;
    color: #374151;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}
.guide li strong {
    color: #111827;
}
.guide code {
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 0.85rem;
    color: #0038f6;
    background: #f3f4ff;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}
.platforms {
    text-align: left;
    margin-top: 1.5rem;
}
.platforms p {
    font-size: 0.9rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}
.platforms ul {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.platforms li {
    font-size: 0.85rem;
    color: #374151;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 0.3rem 0.75rem;
}