:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #657282;
  --line: #d9e0e8;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --danger: #b42318;
  --good: #157347;
  --sidebar: #18212f;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink); font-family: Segoe UI, Arial, sans-serif; line-height: 1.45; }
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 232px; background: var(--sidebar); color: #fff; padding: 20px 14px; }
.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 8px; background: #f6c453; color: #1f2937; font-weight: 800; }
.brand small { display: block; color: #b9c3d0; }
nav { display: grid; gap: 4px; }
nav a { color: #d9e4f0; padding: 10px 12px; border-radius: 6px; }
nav a.active, nav a:hover { background: #263449; color: #fff; text-decoration: none; }
.main { margin-left: 232px; padding: 22px 28px 42px; }
.userbar { display: flex; justify-content: flex-end; gap: 16px; color: var(--muted); font-size: 14px; }
.page-head { margin: 14px 0 18px; }
h1 { margin: 0; font-size: 28px; line-height: 1.2; }
h2 { margin: 0 0 14px; font-size: 18px; }
.kpis { display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr)); gap: 14px; margin-bottom: 18px; }
.kpis div, .panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 1px 2px rgba(15, 23, 42, .05); }
.kpis div { padding: 18px; }
.kpis span, .muted { color: var(--muted); }
.kpis strong { display: block; margin-top: 6px; font-size: 30px; }
.split { display: grid; grid-template-columns: minmax(280px, .9fr) minmax(360px, 1.4fr); gap: 18px; align-items: start; }
.panel { padding: 18px; overflow: auto; }
.danger { border-color: #f2b8b5; background: #fff5f3; }
.summary { display: grid; grid-template-columns: 1fr auto; gap: 10px 16px; margin: 0; }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; font-weight: 700; }
.good { color: var(--good); font-weight: 700; }
.bad { color: var(--danger); font-weight: 700; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 9px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: #465568; font-weight: 700; background: #f8fafc; }
.form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; color: #344054; font-weight: 600; }
input, select, button, .button { min-height: 38px; border-radius: 6px; border: 1px solid var(--line); font: inherit; }
input, select { width: 100%; padding: 8px 10px; background: #fff; }
button, .button { display: inline-flex; align-items: center; justify-content: center; padding: 8px 13px; background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; cursor: pointer; }
button:hover, .button:hover { background: var(--accent-strong); text-decoration: none; }
.danger-button { background: var(--danger); border-color: var(--danger); }
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; }
.inline-form { display: flex; gap: 8px; align-items: center; }
.inline-form input { width: 180px; }
.inline-form select { width: 220px; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: min(420px, 100%); display: grid; gap: 15px; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 18px 40px rgba(15, 23, 42, .12); }
.login-brand { color: var(--ink); margin-bottom: 8px; }
.login-brand small { color: var(--muted); }
.notice { padding: 10px 12px; border-radius: 6px; }
.notice.error { background: #fff5f3; color: var(--danger); border: 1px solid #f2b8b5; }
.notice.success { background: #ecfdf3; color: var(--good); border: 1px solid #abefc6; margin-bottom: 14px; }
code { background: #eef2f7; border-radius: 4px; padding: 2px 5px; }
@media (max-width: 860px) {
  .sidebar { position: static; width: auto; }
  .main { margin-left: 0; padding: 18px; }
  .kpis, .split { grid-template-columns: 1fr; }
  .inline-form { flex-wrap: wrap; }
}