/* koogo 工具箱 —— 全站共用样式 */
:root {
    --bg: #f6f5f2;
    --panel: #ffffff;
    --panel-2: #f0eee9;
    --ink: #1f2328;
    --ink-2: #5b616b;
    --ink-3: #8a9099;
    --line: #e2dfd8;
    --accent: #2f6fde;
    --accent-ink: #ffffff;
    --accent-soft: #e4edfc;
    --sel: #f29f05;
    --warn-bg: #fff6e0;
    --warn-ink: #7a5600;
    --err-bg: #fde8e8;
    --err-ink: #9b1c1c;
    --stage: #e9e7e1;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .05);
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #16181c; --panel: #1f2227; --panel-2: #272a30; --ink: #e8eaed; --ink-2: #b0b5bd; --ink-3: #868c96;
        --line: #33373e; --accent: #6b9cff; --accent-ink: #0d1117; --accent-soft: #23314d; --sel: #ffb53d;
        --warn-bg: #3a3018; --warn-ink: #f2d38a; --err-bg: #3d1f1f; --err-ink: #f5b0b0; --stage: #2a2d33;
        --shadow: 0 1px 2px rgba(0, 0, 0, .4); color-scheme: dark;
    }
}
:root[data-theme="dark"] {
    --bg: #16181c; --panel: #1f2227; --panel-2: #272a30; --ink: #e8eaed; --ink-2: #b0b5bd; --ink-3: #868c96;
    --line: #33373e; --accent: #6b9cff; --accent-ink: #0d1117; --accent-soft: #23314d; --sel: #ffb53d;
    --warn-bg: #3a3018; --warn-ink: #f2d38a; --err-bg: #3d1f1f; --err-ink: #f5b0b0; --stage: #2a2d33;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4); color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
    background: var(--bg); color: var(--ink);
    font: 15px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button, select, input { font: inherit; color: inherit; }

.topbar {
    display: flex; align-items: center; gap: 12px; padding: 10px 16px;
    border-bottom: 1px solid var(--line); background: var(--panel);
}
.brand { font-weight: 700; letter-spacing: .02em; color: var(--ink); }
.brand b { color: var(--accent); }
.topbar .sep { color: var(--ink-3); }
.topbar .here { color: var(--ink-2); }
.topbar .grow { flex: 1; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 7px 14px; border-radius: 8px; border: 1px solid var(--line);
    background: var(--panel); cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--ink-3); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.small { padding: 4px 10px; font-size: 13px; }

.footer { text-align: center; color: var(--ink-3); font-size: 12px; padding: 24px 16px 32px; }
.footer a { color: var(--ink-3); }

/* ---------- 首页 ---------- */
.hero { max-width: 960px; margin: 0 auto; padding: 48px 16px 16px; }
.hero h1 { font-size: 30px; margin: 0 0 8px; }
.hero p { color: var(--ink-2); margin: 0; }
.cards { max-width: 960px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card {
    display: block; padding: 18px; border-radius: var(--radius); background: var(--panel);
    border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink);
}
.card:hover { border-color: var(--accent); text-decoration: none; }
.card h3 { margin: 6px 0 4px; font-size: 17px; }
.card p { margin: 0; color: var(--ink-2); font-size: 14px; }
.card .tag { font-size: 12px; color: var(--accent); background: var(--accent-soft); padding: 2px 8px; border-radius: 99px; }
.card.soon { opacity: .55; box-shadow: none; }
.card.soon:hover { border-color: var(--line); }