:root {
  --bg: #0f1419;
  --bg-elevated: #171e26;
  --bg-panel: #1c2430;
  --border: #2a3544;
  --text: #e8eef5;
  --muted: #8b9bb0;
  --accent: #3d9cf0;
  --accent-hover: #5aadf5;
  --ok: #3ecf8e;
  --warn: #e6b35c;
  --danger: #e85d5d;
  --radius: 10px;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a3d 0%, transparent 55%),
              radial-gradient(900px 500px at 100% 0%, #162033 0%, transparent 50%),
              var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
code.break { word-break: break-all; }

.app-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: rgba(15, 20, 25, 0.92);
  border-right: 1px solid var(--border);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.1rem;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #2f7fd4, #1a4f8a);
  font-weight: 700;
  color: white;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.sidebar nav a {
  color: var(--muted);
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  font-weight: 500;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  background: var(--bg-panel);
  color: var(--text);
}

.sidebar-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.content {
  padding: 1.75rem 2rem 3rem;
  max-width: 1200px;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-head h1 { margin: 0 0 0.25rem; font-size: 1.75rem; font-weight: 600; }
.page-head p { margin: 0; color: var(--muted); }
.head-actions { display: flex; gap: 0.6rem; align-items: center; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.stat {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.stat-label { display: block; color: var(--muted); font-size: 0.8rem; margin-bottom: 0.35rem; }
.stat strong { font-size: 1.6rem; font-weight: 600; }
.stat-ok strong { color: var(--ok); }
.stat-warn strong { color: var(--warn); }
.stat-danger strong { color: var(--danger); }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.25rem;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
}

.panel h2 { margin: 0 0 0.85rem; font-size: 1.05rem; font-weight: 600; }
.panel-head h2 { margin: 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 0.7rem 0.55rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.93rem;
  vertical-align: top;
}
th { color: var(--muted); font-weight: 500; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
.row-muted { opacity: 0.55; }
.empty, .muted { color: var(--muted); }

.badge {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: #2a3544;
  color: var(--text);
}
.badge-ativa { background: rgba(62, 207, 142, 0.18); color: var(--ok); }
.badge-expirada { background: rgba(230, 179, 92, 0.18); color: var(--warn); }
.badge-revogada { background: rgba(232, 93, 93, 0.18); color: var(--danger); }

.btn-primary, .btn-secondary, .btn-danger, .btn-ghost, button.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #061018; }
.btn-primary:hover { background: var(--accent-hover); color: #061018; }
.btn-secondary { background: #243041; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #2c3a4e; color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid transparent; }
.btn-ghost:hover { color: var(--text); border-color: var(--border); }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.82rem; }

.filters {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.filters input, .filters select,
.field input, .field textarea, .field select,
.login-form input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  font: inherit;
}
.filters input { flex: 1; min-width: 220px; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label { color: var(--muted); font-size: 0.85rem; font-weight: 500; }
.field-error, .form-error { color: var(--danger); font-size: 0.85rem; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.field-full { grid-column: 1 / -1; }
.field-check { justify-content: end; }
.field-check label { display: flex; align-items: center; gap: 0.5rem; color: var(--text); }
.form-actions { display: flex; gap: 0.7rem; margin-top: 1.25rem; }
.form-panel { max-width: 720px; }
.warn-text { color: var(--warn); }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 0.55rem 1rem; margin: 0; }
.kv dt { color: var(--muted); margin: 0; }
.kv dd { margin: 0; }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-weight: 500;
}
.flash-ok { background: rgba(62, 207, 142, 0.15); color: var(--ok); border: 1px solid rgba(62, 207, 142, 0.3); }
.flash-err { background: rgba(232, 93, 93, 0.15); color: var(--danger); border: 1px solid rgba(232, 93, 93, 0.3); }

.auth-body { display: grid; place-items: center; min-height: 100vh; padding: 1.5rem; }
.login-shell { width: min(420px, 100%); }
.login-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}
.login-brand {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  margin-bottom: 1.5rem;
}
.login-brand h1 { margin: 0; font-size: 1.4rem; }
.login-brand p { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.9rem; }
.login-form { display: flex; flex-direction: column; gap: 0.45rem; }
.login-form label { margin-top: 0.5rem; color: var(--muted); font-size: 0.85rem; }
.login-form .btn-primary { margin-top: 1rem; width: 100%; }

@media (max-width: 860px) {
  .app-body { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .form-grid { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; }
  .content { padding: 1.1rem; }
}