:root {
    color-scheme: light dark;
    --bg: #f7f7f8;
    --fg: #1a1a1a;
    --muted: #6b6b73;
    --card-bg: #ffffff;
    --border: #e5e5ea;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-fg: #ffffff;
    --code-bg: #f0f0f3;
    --tag-feat: #0a7c2e;
    --tag-fix:  #b84a00;
    --tag-break: #c5283d;
    --tag-other: #555560;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1220;
        --fg: #f0f0f3;
        --muted: #8a8a92;
        --card-bg: #111827;
        --border: #1f2937;
        --accent: #60a5fa;
        --accent-hover: #93c5fd;
        --accent-fg: #0b1220;
        --code-bg: #1f2937;
        --tag-feat: #4ade80;
        --tag-fix:  #fb923c;
        --tag-break: #f87171;
        --tag-other: #9ca3af;
    }
}

* { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
main {
    max-width: 780px;
    margin: 0 auto;
    padding: 48px 20px 80px;
}
header { margin-bottom: 36px; }
h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0 0 8px;
    letter-spacing: -0.02em;
}
header p {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}
header a {
    color: var(--accent);
    text-decoration: none;
}
header a:hover { text-decoration: underline; }
header code {
    background: var(--code-bg);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}

.app {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.app-head {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.app-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    flex-shrink: 0;
    background: var(--code-bg);
}
.app-head-text {
    flex: 1 1 auto;
    min-width: 0;
}
.app-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.01em;
}
.app-version {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 2px;
}
.app-desc {
    margin: 12px 0 16px;
    color: var(--muted);
    font-size: 0.93rem;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.download {
    display: inline-flex;
    align-items: center;
    background: var(--accent);
    color: var(--accent-fg);
    padding: 9px 18px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 120ms ease;
}
.download:hover { background: var(--accent-hover); }
.meta {
    font-size: 0.8rem;
    color: var(--muted);
}

details {
    margin-top: 18px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
details summary {
    cursor: pointer;
    color: var(--muted);
    font-size: 0.88rem;
    user-select: none;
    list-style: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::before {
    content: "▸ ";
    display: inline-block;
    transition: transform 120ms ease;
}
details[open] summary::before { content: "▾ "; }
details summary:hover { color: var(--fg); }

.release {
    margin-top: 16px;
    padding-left: 16px;
    border-left: 2px solid var(--border);
}
.release-head {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}
.release-version {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-weight: 700;
    font-size: 0.92rem;
}
.release-date {
    color: var(--muted);
    font-size: 0.8rem;
}
.release-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.8rem;
}
.release-link:hover { text-decoration: underline; }

ul.changelog {
    margin: 10px 0 0;
    padding-left: 0;
    list-style: none;
}
ul.changelog li {
    font-size: 0.88rem;
    margin: 6px 0;
    display: flex;
    gap: 10px;
    align-items: baseline;
}
.tag {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 5px;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}
.tag-feat   { background: rgba(34, 197, 94, 0.15);  color: var(--tag-feat); }
.tag-fix    { background: rgba(251, 146, 60, 0.15); color: var(--tag-fix); }
.tag-break  { background: rgba(239, 68, 68, 0.18);  color: var(--tag-break); }
.tag-other  { background: rgba(156, 163, 175, 0.18); color: var(--tag-other); }

.sha {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.72rem;
    color: var(--muted);
    background: var(--code-bg);
    padding: 2px 8px;
    border-radius: 5px;
    user-select: all;
    word-break: break-all;
}

.empty, .error {
    background: var(--card-bg);
    border: 1px dashed var(--border);
    border-radius: 14px;
    padding: 28px;
    text-align: center;
    color: var(--muted);
}
.error { border-color: var(--tag-break); color: var(--tag-break); }

footer {
    margin-top: 40px;
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
}
footer code {
    background: var(--code-bg);
    padding: 1px 6px;
    border-radius: 4px;
}