:root {
  --color-primary: #1d6fa4;
  --color-primary-dark: #145880;
  --color-sidebar: #0f2d42;
  --color-accent: #1d9e75;
  --color-bg: #f4f6f9;
  --color-card: #ffffff;
  --color-border: #e1e6ec;
  --color-text: #1f2a37;
  --color-muted: #6b7280;
  --sidebar-width: 240px;
  --topbar-height: 56px;
}

html { font-size: 15px; }
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  margin: 0;
}

a { color: var(--color-primary); }
a:hover { color: var(--color-primary-dark); }

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}
.btn-outline-primary {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ===== Layout ===== */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}

.sidebar {
  background-color: var(--color-sidebar);
  color: #d8e3ec;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  padding: 0 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar .brand i { color: var(--color-accent); font-size: 1.5rem; }

.sidebar .nav { margin-top: 12px; }
.sidebar .nav-link {
  color: #d8e3ec;
  padding: 10px 20px;
  border-left: 3px solid transparent;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
}
.sidebar .nav-link:hover {
  background-color: rgba(255,255,255,0.05);
  color: #fff;
  border-left-color: var(--color-accent);
}
.sidebar .nav-link.active {
  background-color: rgba(29,158,117,0.12);
  color: #fff;
  border-left-color: var(--color-accent);
}

.content {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: var(--topbar-height);
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 0 20px;
  display: flex;
  align-items: center;
}

.page {
  flex: 1;
  padding: 24px;
}

.footer {
  text-align: center;
  padding: 12px;
  color: var(--color-muted);
  font-size: 0.85rem;
  background: #fff;
  border-top: 1px solid var(--color-border);
}

/* ===== Cards & status ===== */
.metric-card {
  background: var(--color-card);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 1px 3px rgba(15,45,66,0.05);
  border: 1px solid var(--color-border);
}
.metric-card .label { color: var(--color-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.metric-card .value { font-size: 1.75rem; font-weight: 700; color: var(--color-primary-dark); }
.metric-card .icon {
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(29,111,164,0.1); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}

.status-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.status-ok { background-color: #e8f7ef; color: #1d9e75; }
.status-baixo { background-color: #fff4e0; color: #c67200; }
.status-zerado { background-color: #fce8e8; color: #c62828; }

/* ===== Login ===== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-sidebar) 0%, var(--color-primary) 100%);
  padding: 20px;
}
.auth-card {
  background: #fff;
  padding: 36px 32px;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  max-width: 400px;
  width: 100%;
}
.auth-card .brand {
  text-align: center;
  margin-bottom: 24px;
}
.auth-card .brand i {
  font-size: 3rem;
  color: var(--color-primary);
}
.auth-card .brand h1 {
  font-size: 1.5rem;
  margin: 8px 0 4px;
  color: var(--color-sidebar);
  font-weight: 700;
}
.auth-card .brand small { color: var(--color-muted); }

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: -100%;
    width: 80%;
    z-index: 1000;
    transition: left 0.25s ease;
  }
  .sidebar.open { left: 0; }
  .page { padding: 16px; }
}

/* ===== Tables ===== */
.table-card {
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  padding: 18px;
}
.table thead th { background: #f8fafc; border-top: none; }

/* ===== Forms ===== */
.form-label { font-weight: 600; font-size: 0.9rem; }
.required::after { content: " *"; color: #c62828; }