:root {
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e2e6ec;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --ok: #16a34a;
    --head: #f1f4f8;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
}

body.center {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 16px;
}

/* ---------- top bar ---------- */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 14px 24px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0; font-size: 20px; }
.topbar .right { display: flex; align-items: center; gap: 10px; }

main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 40px; }

/* ---------- controls ---------- */
input, select, button { font: inherit; }

input, select {
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: transparent; }

.btn {
    display: inline-block;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
}
.btn:hover { background: var(--head); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }

.icon {
    border: none;
    background: none;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    color: var(--muted);
}
.icon.danger:hover { background: #fee2e2; color: var(--danger); }

.badge {
    padding: 4px 10px;
    border-radius: 999px;
    background: #dbeafe;
    color: var(--primary-dark);
    font-size: 13px;
}
.badge.muted { background: #e5e7eb; color: var(--muted); }

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}
.toolbar #search { flex: 1 1 200px; }
.inline { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* ---------- table ---------- */
.table-wrap {
    overflow-x: auto;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
}

table { width: 100%; border-collapse: collapse; }

th, td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    white-space: nowrap;
}
th { background: var(--head); font-weight: 600; font-size: 14px; }
tbody tr:hover { background: #f9fafb; }
tfoot td { font-weight: 700; background: var(--head); border-bottom: none; }

.right { text-align: right; }
.num { width: 44px; color: var(--muted); text-align: center; }
.empty { text-align: center; color: var(--muted); padding: 30px; }

/* admin editing */
.col-edit { display: inline-flex; gap: 4px; }
.col-edit input { width: 130px; font-weight: 600; }
.col-edit select { font-size: 13px; padding: 6px; }

input.cell {
    width: 100%;
    min-width: 120px;
    border-color: transparent;
    background: transparent;
}
td.right input.cell { text-align: right; }
input.cell:hover { border-color: var(--border); background: #fff; }
input.cell.ok  { box-shadow: inset 0 -2px 0 var(--ok); }
input.cell.err { box-shadow: inset 0 -2px 0 var(--danger); background: #fef2f2; }

/* ---------- cards / login ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}
.login { width: 100%; max-width: 360px; display: grid; gap: 14px; }
.login h1 { margin: 0 0 4px; font-size: 22px; }
.login label { display: grid; gap: 6px; font-size: 14px; }
.login .btn { padding: 10px; }

.small-card { margin-top: 20px; padding: 14px 18px; max-width: 420px; }
.small-card summary { cursor: pointer; font-weight: 600; }
.small-card form { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

.alert {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    padding: 10px 14px;
    border-radius: 8px;
    margin: 0 0 14px;
}
.muted { color: var(--muted); }
.small { font-size: 13px; }
a.muted { text-decoration: none; font-size: 14px; text-align: center; }

/* live-refresh indicator */
.live { align-self: center; }
.live::before {
    content: "";
    display: inline-block;
    width: 8px; height: 8px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--ok);
    animation: pulse 2s infinite;
}
@keyframes pulse { 50% { opacity: .3; } }