:root {
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1d2433;
    --muted: #6b7385;
    --border: #dfe3ea;
    --primary: #2f6fde;
    --primary-dark: #2459b6;
    --ok: #1f9d55;
    --warn: #c98a04;
    --error: #d64545;
    --info: #5b6b8c;
    --radius: 8px;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
.wide-hint { grid-column: 1 / -1; margin: 0; }
body { margin: 0; line-height: 1.45; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .6rem; line-height: 1.2; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }
code, pre { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .9em; }
pre { background: #10151f; color: #e6e9ef; padding: .8rem 1rem; border-radius: var(--radius); overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.muted { color: var(--muted); }
small { font-size: .85em; }

.topbar { display: flex; align-items: center; gap: 1.5rem; padding: .7rem 1.5rem; background: #1d2433; color: #fff; flex-wrap: wrap; }
.topbar .brand { font-weight: 700; letter-spacing: .02em; }
.topbar nav { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
.topbar nav a { color: #c9d1e3; padding: .2rem 0; border-bottom: 2px solid transparent; }
.topbar nav a.active, .topbar nav a:hover { color: #fff; text-decoration: none; border-bottom-color: var(--primary); }
.topbar .logout { display: flex; align-items: center; gap: .6rem; margin: 0; }
.topbar .logout .muted { color: #9aa4ba; }

.container { max-width: 1200px; margin: 1.5rem auto; padding: 0 1.2rem 3rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem 1.3rem; margin-bottom: 1rem; }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.spacer { flex: 1; }
.stack > * + * { margin-top: .6rem; }

.btn { display: inline-flex; align-items: center; gap: .3rem; border: 1px solid var(--border); background: #fff; color: var(--text); padding: .45rem .9rem; border-radius: 6px; cursor: pointer; font: inherit; font-size: .92rem; white-space: nowrap; }
.btn:hover { border-color: #b9c1cf; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--error); border-color: #efc4c4; }
.btn.ok { color: var(--ok); border-color: #b8e0c8; }
.btn.warn { color: var(--warn); border-color: #ecd9a8; }
.btn.small { padding: .25rem .6rem; font-size: .82rem; }
.btn.active { background: #eef3fd; border-color: var(--primary); color: var(--primary); }

.badge { display: inline-block; padding: .12rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; background: #e9ecf2; color: var(--info); }
.badge.ok { background: #e3f5ea; color: var(--ok); }
.badge.warn { background: #fbf1d9; color: var(--warn); }
.badge.error { background: #fbe4e4; color: var(--error); }
.badge.info { background: #e8eefb; color: var(--primary); }

.alert { padding: .7rem 1rem; border-radius: var(--radius); margin: 0 0 1rem; border: 1px solid; }
.alert.error { background: #fdf0f0; border-color: #f2c9c9; color: #9b2c2c; }
.alert.warn { background: #fdf7e8; border-color: #f0dfaf; color: #7a5a00; }
.alert.ok { background: #eef9f2; border-color: #c4e8d2; color: #1a6b3d; }
.alert.info { background: #eef3fd; border-color: #cddbf7; color: #2a4f97; }

.setup-head { display: flex; gap: .8rem; align-items: baseline; flex-wrap: wrap; margin-bottom: .4rem; }
.setup-head h3 { margin: 0; }
.meta { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: .3rem 1.2rem; font-size: .9rem; margin: .6rem 0; }
.meta b { font-weight: 600; color: var(--muted); font-weight: 500; margin-right: .3rem; }
.activity { font-size: .9rem; margin: .3rem 0; }
.pulse { display: inline-block; width: .55rem; height: .55rem; border-radius: 50%; background: var(--ok); margin-right: .4rem; animation: pulse 1.4s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .45rem .55rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
td.num, th.num { text-align: right; white-space: nowrap; }
td.path { word-break: break-all; }
td.err { color: var(--error); font-size: .85rem; max-width: 380px; }
.table-wrap { overflow-x: auto; }

form.grid, .grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .8rem 1rem; }
label { display: flex; flex-direction: column; gap: .25rem; font-size: .88rem; font-weight: 500; }
label.wide { grid-column: 1 / -1; }
label.check { flex-direction: row; align-items: center; gap: .45rem; font-weight: 400; }
input, select, textarea { font: inherit; font-size: .93rem; padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 6px; background: #fff; color: var(--text); width: 100%; }
input[type=checkbox] { width: auto; }
.row > select, .row > input { width: auto; min-width: 200px; }
.row > input[type=search] { flex: 1; }
textarea { resize: vertical; font-family: ui-monospace, Consolas, monospace; font-size: .87rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid #c4d6f7; border-color: var(--primary); }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 0 0 1rem; background: var(--card); }
legend { font-weight: 700; padding: 0 .4rem; }
.mirror { border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: var(--radius); padding: .9rem 1rem; margin-bottom: .9rem; background: #fbfcfe; }
.mirror.dropbox { border-left-color: #0061fe; }
.mirror.disabled { opacity: .7; border-left-color: var(--muted); }
.result { font-size: .88rem; margin-top: .5rem; white-space: pre-wrap; }
.result.ok { color: var(--ok); }
.result.error { color: var(--error); }
.hint { font-size: .85rem; color: var(--muted); margin: .2rem 0 .8rem; }
.actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }

.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.auth-card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: .8rem; }

.toast { position: fixed; bottom: 1.2rem; right: 1.2rem; background: #1d2433; color: #fff; padding: .7rem 1.1rem; border-radius: var(--radius); box-shadow: 0 6px 24px rgba(0, 0, 0, .2); max-width: 420px; z-index: 10; }
.toast.error { background: var(--error); }

@media (max-width: 640px) {
    .container { padding: 0 .7rem 2rem; }
    .card { padding: .9rem; }
}