/* ══════════════════════════════════════════════════════════
   V12 Motors — Design System
   Paleta: Azul marinho #242951 / Mostarda #D09F25 (logo institucional)
   ══════════════════════════════════════════════════════════ */

:root {
  --dt-primary: #242951;
  --dt-primary-light: #3a4272;
  --dt-primary-lighter: #565f94;
  --dt-accent: #D09F25;
  --dt-warning: #D09F25;
  --dt-danger: #C00000;
  --dt-bg: #f2f3f7;
  --dt-card: #ffffff;
  --dt-border: #e0e4ea;
  --dt-text: #2c3e50;
  --dt-text-muted: #6c757d;
  --dt-radius: 10px;
  --dt-shadow: 0 2px 8px rgba(36,41,81,.08);
  --dt-shadow-hover: 0 6px 20px rgba(36,41,81,.15);
  --dt-gradient: linear-gradient(135deg, #242951 0%, #3a4272 100%);
  --dt-font: 'Segoe UI', system-ui, -apple-system, sans-serif;

  --dt-space-1: .25rem;
  --dt-space-2: .5rem;
  --dt-space-3: .75rem;
  --dt-space-4: 1rem;
  --dt-space-5: 1.5rem;
  --dt-space-6: 2rem;

  --dt-text-xs: .7rem;
  --dt-text-sm: .8rem;
  --dt-text-base: .875rem;
  --dt-text-lg: 1rem;

  --dt-mobile-max: 767px;
}

* { box-sizing: border-box; }

body {
  font-family: var(--dt-font);
  background: var(--dt-bg);
  color: var(--dt-text);
  margin: 0;
}

.navbar {
  background: var(--dt-gradient) !important;
  border-bottom: none !important;
  box-shadow: 0 2px 12px rgba(36,41,81,.25);
  padding: .6rem 1rem;
}
.navbar-brand { color: #fff !important; font-weight: 700; font-size: 1.1rem; }
.navbar-brand img { max-height: 32px; }
.navbar .nav-link { color: rgba(255,255,255,.85) !important; font-weight: 500; font-size: .9rem; }
.navbar .nav-link:hover { color: #fff !important; }

.dropdown-menu {
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  box-shadow: var(--dt-shadow-hover);
  padding: .4rem 0;
}
.dropdown-item { font-size: .875rem; padding: .5rem 1rem; }
.dropdown-item:hover { background: #eceef7; color: var(--dt-primary); }

.dt-layout { display: flex; min-height: 100vh; }
.dt-sidebar {
  width: 260px; background: #fff; border-right: 1px solid var(--dt-border);
  padding: var(--dt-space-4) 0; flex-shrink: 0;
}
.dt-main { flex: 1; padding: var(--dt-space-5); min-width: 0; }

.dt-group { list-style: none; }
.dt-grouptoggle {
  width: 100%; text-align: left; background: none; border: none;
  padding: var(--dt-space-3) var(--dt-space-4); display: flex; align-items: center; gap: var(--dt-space-2);
  color: var(--dt-text); font-weight: 600; font-size: var(--dt-text-sm);
}
.dt-grouptoggle .dt-chev { margin-left: auto; transition: transform .15s; }
.dt-grouptoggle.open .dt-chev { transform: rotate(180deg); }
.dt-link {
  display: block; padding: var(--dt-space-2) var(--dt-space-4) var(--dt-space-2) 2.4rem;
  color: var(--dt-text-muted); text-decoration: none; font-size: var(--dt-text-sm);
}
.dt-link:hover { background: var(--dt-bg); color: var(--dt-primary); }
.dt-link.active { background: #eceef7; color: var(--dt-primary); font-weight: 600; }

.page-header { }
.page-header h1 { color: var(--dt-primary); }
.page-header .subtitle { color: var(--dt-text-muted); font-size: var(--dt-text-sm); }

.card { border-radius: var(--dt-radius); box-shadow: var(--dt-shadow); border: none; }
.kpi-label { font-size: var(--dt-text-xs); color: var(--dt-text-muted); text-transform: uppercase; letter-spacing: .04em; }
.kpi-val { font-size: 1.5rem; font-weight: 700; }
.kpi-sub { font-size: var(--dt-text-xs); color: var(--dt-text-muted); }

@media (max-width: 767px) {
  .dt-sidebar { display: none; }
  .dt-main { padding: var(--dt-space-3); }
}