:root {
    --bg: #f4f6fb;
    --panel: #ffffff;
    --ink: #1c2430;
    --muted: #6b7688;
    --line: #e2e7f0;
    --brand: #1d5c3a;
    --brand-2: #2f8f5b;
    --brand-ink: #0f3323;
    --accent: #c9a227;
    --danger: #c0392b;
    --warn: #b7791f;
    --ok: #1e7d4f;
    --info: #2b6cb0;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(20, 40, 70, .08), 0 6px 24px rgba(20, 40, 70, .06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    font-size: 15px;
    line-height: 1.5;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.25; }

/* ---- top bar ---- */
.topbar {
    display: flex; align-items: center; gap: 16px;
    background: var(--brand); color: #fff;
    padding: 10px 18px; position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 700; font-size: 17px; display: flex; align-items: center; gap: 8px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.whoami { font-size: 13px; opacity: .95; }
.whoami em { font-style: normal; opacity: .7; }
.burger { display: none; background: transparent; border: 0; color: #fff; font-size: 22px; cursor: pointer; }

/* ---- layout ---- */
.shell { display: flex; align-items: flex-start; min-height: calc(100vh - 52px); }
.sidebar {
    width: 230px; flex: 0 0 230px; background: #fff; border-right: 1px solid var(--line);
    padding: 14px 10px; position: sticky; top: 52px; height: calc(100vh - 52px); overflow-y: auto;
}
.nav-group {
    font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
    color: var(--muted); margin: 14px 10px 4px;
}
.nav-item {
    display: block; padding: 8px 12px; border-radius: 8px; color: var(--ink);
    font-size: 14px; margin: 1px 0;
}
.nav-item:hover { background: #f0f4fa; text-decoration: none; }
.nav-item.active { background: var(--brand); color: #fff; }
.content { flex: 1; padding: 22px 26px 60px; max-width: 1200px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 16px; }

/* ---- cards & grids ---- */
.card {
    background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 18px;
}
.card h1 { margin: 0 0 4px; font-size: 20px; }
.card h2 { margin: 0 0 12px; font-size: 16px; }
.card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.card-head .spacer { margin-left: auto; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.stat .value.ok { color: var(--ok); }
.stat .value.danger { color: var(--danger); }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tbody tr:hover { background: #f8fafd; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }

/* ---- buttons ---- */
.btn {
    display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
    background: #fff; color: var(--ink); cursor: pointer; font-size: 14px; line-height: 1.2;
}
.btn:hover { background: #f0f4fa; text-decoration: none; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-2); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.08); }
.btn-ghost { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.25); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.24); }
.btn-sm { padding: 5px 9px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---- forms ---- */
form .field { margin-bottom: 12px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], input[type=file], select, textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
    font-size: 14px; background: #fff; color: var(--ink); font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-2); outline-offset: -1px; }
textarea { min-height: 72px; resize: vertical; }
.inline-form { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.inline-form .field { margin-bottom: 0; }
.hint { color: var(--muted); font-size: 12px; margin-top: 3px; }

/* ---- badges & flashes ---- */
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-grey   { background: #eceff4; color: #55606f; }
.badge-blue   { background: #e1ecfb; color: var(--info); }
.badge-green  { background: #ddf3e6; color: var(--ok); }
.badge-amber  { background: #fbf0d8; color: var(--warn); }
.badge-red    { background: #fbe1de; color: var(--danger); }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; border: 1px solid; }
.flash-success { background: #e7f6ec; border-color: #bfe4cc; color: var(--ok); }
.flash-error   { background: #fdeceb; border-color: #f5c6c1; color: var(--danger); }
.flash-info    { background: #e8f1fc; border-color: #c3dbf6; color: var(--info); }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.right { text-align: right; }
.center { text-align: center; }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.pill { display:inline-block; background:#eef2f7; border-radius:6px; padding:2px 8px; font-size:12px; color:#465063; }

.checks { list-style: none; padding: 0; margin: 0; }
.checks li { padding: 5px 0; border-bottom: 1px dashed var(--line); }
.checks li.ok::before  { content: "✓ "; color: var(--ok); font-weight: 700; }
.checks li.bad::before { content: "✗ "; color: var(--danger); font-weight: 700; }

/* ---- login ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(160deg, #123a26, #1d5c3a 60%, #2f8f5b); }
.login-card { background: #fff; padding: 30px 30px 34px; border-radius: 14px; width: 360px; max-width: 92vw; box-shadow: 0 20px 60px rgba(0,0,0,.3); text-align: center; }
.login-logo { font-size: 40px; }
.login-card h1 { font-size: 20px; margin: 6px 0 2px; }
.login-card form { text-align: left; margin-top: 16px; }
.login-card label { margin-bottom: 10px; }
.login-card input { margin-top: 4px; }

/* ---- mobile ---- */
@media (max-width: 820px) {
    .burger { display: block; }
    .sidebar { position: fixed; left: 0; top: 52px; z-index: 30; transform: translateX(-100%); transition: transform .2s; }
    body.nav-open .sidebar { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,.3); }
    .content { padding: 16px; }
}

/* ---- print ---- */
@media print {
    .topbar, .sidebar, .footer, .no-print { display: none !important; }
    .content { max-width: none; padding: 0; }
    .card { box-shadow: none; border: 0; }
}