:root {
  --brand-red: #e8232e;
  --brand-red-dark: #a3121b;
  --brand-orange: #ff9a1f;
  --brand-gradient: linear-gradient(90deg, var(--brand-red) 0%, var(--brand-orange) 100%);
  --ok: #22c55e;
  --warn: var(--brand-orange);
  --bad: var(--brand-red);
  --bg: #0a0a0a;
  --surface: #161616;
  --surface-alt: #1f1f1f;
  --card-bg: #161616;
  --text: #f2f2f2;
  --text-muted: #9a9a9a;
  --border: #2a2a2a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* --- topbar / nav --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  color: var(--text);
  padding: 12px 24px;
  border-bottom: 3px solid transparent;
  border-image: var(--brand-gradient) 1;
}
.topbar-brand { display: flex; align-items: center; gap: 14px; }
.brand-logo { height: 34px; width: auto; display: block; }
.brand-divider { width: 1px; height: 22px; background: var(--border); display: block; }
.brand-name { font-size: 14px; font-weight: 500; letter-spacing: 0.6px; color: var(--text-muted); text-transform: uppercase; }
.logout-form { margin: 0; }
.btn-link {
  background: none; border: 1px solid var(--border); color: var(--text);
  padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 14px;
}
.btn-link:hover { border-color: var(--brand-red); color: var(--brand-red); }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  background: #101010;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
}
.tab {
  color: var(--text-muted);
  text-decoration: none;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 3px solid transparent;
}
.tab:hover { color: var(--text); }
.tab-active { color: var(--brand-red); border-bottom-color: var(--brand-red); font-weight: 700; }

/* --- content --- */
.content { max-width: 1100px; margin: 0 auto; padding: 32px 24px 60px; }
h1 { font-size: 22px; margin: 0 0 4px; color: var(--text); }
h2 { font-size: 16px; color: var(--text); margin: 28px 0 10px; }
.subtitle { color: var(--text-muted); margin: 0 0 24px; font-size: 14px; }
.footnote { color: var(--text-muted); font-size: 13px; margin-top: 20px; }
.empty { color: var(--text-muted); font-style: italic; }

/* --- overview cards --- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  border-left: 4px solid var(--text-muted);
}
.card-icon { width: 24px; height: 24px; margin-bottom: 10px; }
.card-value { font-size: 30px; font-weight: 700; line-height: 1; color: var(--text); }
.card-label { color: var(--text-muted); font-size: 13px; margin-top: 6px; }
.card-ok { border-left-color: var(--ok); }
.card-ok .card-icon { color: var(--ok); }
.card-warn { border-left-color: var(--brand-orange); }
.card-warn .card-icon { color: var(--brand-orange); }
.card-warn .card-value { color: var(--brand-orange); }
.card-bad { border-left-color: var(--brand-red); }
.card-bad .card-icon { color: var(--brand-red); }
.card-bad .card-value { color: var(--brand-red); }
.card-neutral { border-left-color: var(--brand-orange); }
.card-neutral .card-icon { color: var(--brand-orange); }
.card-neutral .card-value { color: var(--brand-orange); }

/* --- tables --- */
.data-table { width: 100%; border-collapse: collapse; background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
.data-table th { background: var(--surface-alt); color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surface-alt); }
.num { text-align: right; font-variant-numeric: tabular-nums; color: var(--brand-red); font-weight: 700; }
.month-block { margin-bottom: 28px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.sort-links { margin-bottom: 14px; font-size: 14px; color: var(--text-muted); }
.sort-links a { color: var(--text-muted); text-decoration: none; margin: 0 4px; }
.sort-links a.sort-active { color: var(--brand-red); font-weight: 700; text-decoration: underline; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; color: #fff; }
.badge-bad { background: var(--brand-red); }
.badge-warn { background: var(--brand-orange); color: #241300; }

/* --- charts / stat blocks (Fase 2) --- */
.chart-block {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 20px; margin-bottom: 24px;
}
.chart-block h2 { margin-top: 0; }
.chart-canvas-wrap { position: relative; height: 260px; }
.stat-row { display: flex; gap: 24px; margin-bottom: 8px; flex-wrap: wrap; }
.stat-mini { min-width: 120px; }
.stat-mini .stat-value { font-size: 22px; font-weight: 700; color: var(--text); }
.stat-mini .stat-value.stat-red { color: var(--brand-red); }
.stat-mini .stat-value.stat-orange { color: var(--brand-orange); }
.stat-mini .stat-value.stat-green { color: var(--ok); }
.stat-mini .stat-label { color: var(--text-muted); font-size: 12px; margin-top: 2px; }
.note-box {
  background: var(--surface-alt); border: 1px solid var(--border); border-left: 3px solid var(--brand-orange);
  border-radius: 6px; padding: 12px 16px; font-size: 13px; color: var(--text-muted); margin-bottom: 20px;
}

/* --- login --- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 40px 36px; width: 320px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 0 40px rgba(232, 35, 46, 0.08);
}
.login-logo { width: 100%; height: auto; margin: 0 auto 8px; display: block; }
.login-card h1 { font-size: 13px; text-align: center; margin: 0 0 16px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.login-card label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.login-card input {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px;
  background: #0f0f0f; color: var(--text);
}
.login-card input:focus { outline: none; border-color: var(--brand-red); }
.login-erro { color: var(--brand-red); font-size: 13px; text-align: center; margin: 0 0 4px; }
.btn-primary {
  margin-top: 16px; background: var(--brand-gradient); color: #fff; border: none; border-radius: 6px;
  padding: 10px; font-size: 14px; font-weight: 700; cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.1); }