:root {
    --bg: #f4f5f7; --panel: #fff; --panel-2: #f0f1f4; --border: #d8dbe0;
    --text: #1c2128; --muted: #6b7280; --accent: #b91c1c; --accent-2: #2563eb;
    --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.45; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }

/* Topbar */
.topbar { display: flex; align-items: center; gap: 18px; background: var(--panel);
    border-bottom: 1px solid var(--border); padding: 0 18px; height: 52px; }
.brand { font-weight: 700; font-size: 16px; color: var(--text); }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.topbar .tabs a { color: var(--muted); padding: 6px 10px; border-radius: 7px; }
.topbar .tabs a:hover { background: var(--panel-2); text-decoration: none; }
.user-chip { margin-left: auto; display: flex; align-items: center; gap: 10px; font-size: 13px; }
.tag { background: var(--panel-2); border: 1px solid var(--border); border-radius: 20px; padding: 1px 9px; font-size: 12px; color: var(--muted); }
.btn-ghost { padding: 5px 10px; border-radius: 7px; border: 1px solid var(--border); color: var(--text); }

/* Layout */
.container { max-width: 1100px; margin: 22px auto; padding: 0 18px; }
.container.narrow { max-width: 640px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 18px; margin-bottom: 18px; }
h1 { font-size: 19px; margin: 0 0 4px; }
h2 { font-size: 15px; margin: 18px 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.count { background: var(--panel-2); border-radius: 20px; padding: 1px 9px; font-size: 12px; color: var(--muted); font-weight: 500; }
.back { display: inline-block; margin-bottom: 12px; color: var(--muted); }

/* Subtabs */
.subtabs { gap: 6px; margin-bottom: 16px; }
.subtabs .tab { padding: 7px 12px; border-radius: 8px; color: var(--muted); border: 1px solid transparent; }
.subtabs .tab:hover { background: var(--panel); text-decoration: none; }
.subtabs .tab.active { background: var(--panel); border-color: var(--border); color: var(--text); font-weight: 600; }

.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); font-weight: 600; }
tbody tr:hover { background: var(--panel-2); }
td.actions { text-align: right; white-space: nowrap; }
.empty { color: var(--muted); padding: 16px; text-align: center; }

/* Forms */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 4px; }
.field input[type=text], .field input[type=password], .field input[type=number], .field select, .field textarea {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px;
    background: var(--panel); color: var(--text); font: inherit; }
.field input[type=checkbox] { width: 18px; height: 18px; }
.field select[multiple] { height: auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-grid .field.full { grid-column: 1 / -1; }
.form-actions { margin-top: 14px; display: flex; gap: 10px; }

/* Buttons */
.btn, button { display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
    background: var(--accent); color: #fff; border: none; border-radius: 8px; padding: 8px 14px; font: inherit; font-weight: 600; }
.btn:hover, button:hover { filter: brightness(.94); text-decoration: none; }
button.icon, .icon { background: none; color: var(--muted); border: none; padding: 4px; border-radius: 6px; cursor: pointer; }
button.icon:hover, a.icon:hover { background: var(--panel-2); color: var(--text); }
form.inline { display: inline; }

/* Flash */
.flash { background: #eef6ff; border: 1px solid #b6d4fe; border-radius: 8px; padding: 10px 12px; margin-bottom: 14px; }
.flash.error { background: #fdecea; border-color: #f5c2c0; color: #842029; }

.appfoot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }

@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }