/* =========================================================================
   CASTOR OS — Base / Componentes da plataforma
   Os design tokens (variáveis --bin-*) moram em tokens.css (fonte única,
   também injetado nos dashboards do Firestore pelo backend). Este arquivo
   traz o reset e os componentes da plataforma (header, cards, tabelas…).
   Use SEMPRE as variáveis CSS. Não hardcode hex no HTML.
   ========================================================================= */

@import url('tokens.css');

/* =========================================================================
   Reset + base
   ========================================================================= */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--bin-font-sans);
  background: var(--bin-color-bg);
  color: var(--bin-color-text);
  line-height: 1.5;
  font-size: var(--bin-text-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--bin-font-display);
  font-weight: 700;
  color: var(--bin-color-text);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--bin-text-headline); }
h2 { font-size: var(--bin-text-subheadline); }
h3 { font-size: var(--bin-text-body-lg); }

a {
  color: var(--bin-color-link);
  text-decoration: none;
}
a:hover {
  color: var(--bin-color-link-hover);
  text-decoration: underline;
}

/* =========================================================================
   Layout
   ========================================================================= */

.bin-header {
  background: var(--bin-color-dark);
  color: var(--bin-color-text-inverse);
  padding: var(--bin-space-4) var(--bin-space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 3px solid var(--bin-color-accent);
}

.bin-header h1 {
  color: var(--bin-color-text-inverse);
  font-size: var(--bin-text-body-lg);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.bin-header h1 .bin-brand-accent {
  color: var(--bin-color-accent);
}

.bin-header-meta {
  font-size: var(--bin-text-caption);
  color: var(--bin-french-gray);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.bin-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--bin-space-6) var(--bin-space-8);
}

.bin-section-title {
  font-size: var(--bin-text-body-lg);
  margin-bottom: var(--bin-space-4);
  color: var(--bin-color-text);
}

/* =========================================================================
   Grid
   ========================================================================= */

.bin-grid {
  display: grid;
  gap: var(--bin-space-4);
}

.bin-grid-2 { grid-template-columns: repeat(2, 1fr); }
.bin-grid-3 { grid-template-columns: repeat(3, 1fr); }
.bin-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .bin-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .bin-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .bin-grid-4, .bin-grid-3, .bin-grid-2 { grid-template-columns: 1fr; }
  .bin-container { padding: var(--bin-space-4); }
}

/* =========================================================================
   Cards
   ========================================================================= */

.bin-card {
  background: var(--bin-color-surface);
  border: 1px solid var(--bin-color-border);
  border-radius: var(--bin-radius-md);
  padding: var(--bin-space-5);
  box-shadow: var(--bin-shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.bin-card:hover {
  box-shadow: var(--bin-shadow-md);
}

.bin-card-dark {
  background: var(--bin-color-dark);
  color: var(--bin-color-text-inverse);
  border-color: var(--bin-color-dark);
}

/* =========================================================================
   KPI card
   ========================================================================= */

.bin-kpi {
  display: flex;
  flex-direction: column;
  gap: var(--bin-space-2);
  position: relative;
  overflow: hidden;
}

.bin-kpi::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--bin-color-primary);
  border-bin-left-radius: var(--bin-radius-md);
  border-bottom-left-radius: var(--bin-radius-md);
}

.bin-kpi-accent::before { background: var(--bin-color-accent); }
.bin-kpi-dark::before   { background: var(--bin-color-dark); }

.bin-kpi-label {
  font-size: var(--bin-text-caption);
  color: var(--bin-color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.bin-kpi-value {
  font-family: var(--bin-font-display);
  font-size: var(--bin-text-subheadline-lg);
  font-weight: 700;
  color: var(--bin-color-text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.bin-kpi-trend {
  font-size: var(--bin-text-caption);
  font-weight: 600;
}
.bin-kpi-trend-up   { color: var(--bin-color-success); }
.bin-kpi-trend-down { color: var(--bin-color-error); }

/* =========================================================================
   Chart card
   ========================================================================= */

.bin-chart-card {
  background: var(--bin-color-surface);
  border: 1px solid var(--bin-color-border);
  border-radius: var(--bin-radius-md);
  padding: var(--bin-space-5);
  box-shadow: var(--bin-shadow-sm);
}

.bin-chart-card h3 {
  font-size: var(--bin-text-body);
  font-weight: 700;
  margin-bottom: var(--bin-space-4);
  color: var(--bin-color-text);
}

.bin-chart-card-subtitle {
  font-size: var(--bin-text-caption);
  color: var(--bin-color-text-muted);
  margin-top: calc(var(--bin-space-1) * -1);
  margin-bottom: var(--bin-space-3);
}

.bin-chart-container {
  position: relative;
  height: 300px;
}

/* =========================================================================
   Tabela
   ========================================================================= */

table.bin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--bin-text-caption-lg);
}

.bin-table th,
.bin-table td {
  text-align: left;
  padding: var(--bin-space-3) var(--bin-space-4);
  border-bottom: 1px solid var(--bin-color-border);
}

.bin-table th {
  font-size: var(--bin-text-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bin-color-text-muted);
  background: var(--bin-color-surface-alt);
}

.bin-table tbody tr:hover {
  background: var(--bin-color-surface-alt);
}

/* =========================================================================
   Estados (loading, erro, badges)
   ========================================================================= */

.bin-loading {
  text-align: center;
  padding: var(--bin-space-8);
  color: var(--bin-color-text-muted);
  font-size: var(--bin-text-caption-lg);
}

.bin-error {
  background: var(--bin-color-error-soft);
  border: 1px solid var(--bin-color-error-border);
  color: var(--bin-color-error);
  padding: var(--bin-space-3) var(--bin-space-4);
  border-radius: var(--bin-radius-md);
  margin: var(--bin-space-4) 0;
  font-size: var(--bin-text-caption-lg);
}

.bin-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--bin-radius-pill);
  font-size: var(--bin-text-caption);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.bin-badge-primary { background: var(--bin-color-primary-soft); color: var(--bin-color-link); }
.bin-badge-accent  { background: var(--bin-color-accent-soft);  color: var(--bin-color-accent-text); }
.bin-badge-muted   { background: var(--bin-color-muted-soft);   color: var(--bin-color-text-muted); }

/* =========================================================================
   Botão
   ========================================================================= */

.bin-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--bin-space-2);
  padding: var(--bin-space-2) var(--bin-space-4);
  font-family: var(--bin-font-sans);
  font-size: var(--bin-text-caption-lg);
  font-weight: 600;
  border-radius: var(--bin-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border 0.15s ease;
}
.bin-btn-primary {
  background: var(--bin-color-primary);
  color: var(--bin-color-text-inverse);
}
.bin-btn-primary:hover {
  background: var(--bin-color-primary-hover);
}
.bin-btn-accent {
  background: var(--bin-color-accent);
  color: var(--bin-color-dark);
}
.bin-btn-accent:hover {
  background: var(--bin-color-accent-hover);
  color: var(--bin-color-text-inverse);
}
.bin-btn-ghost {
  background: transparent;
  color: var(--bin-color-primary);
  border-color: var(--bin-color-border-strong);
}
.bin-btn-ghost:hover {
  background: var(--bin-color-surface-alt);
}

/* =========================================================================
   Utilitários (uso pontual; prefira componentes acima)
   ========================================================================= */

.bin-text-muted { color: var(--bin-color-text-muted); }
.bin-text-accent { color: var(--bin-color-accent); }
.bin-text-primary { color: var(--bin-color-primary); }
.bin-mt-4 { margin-top: var(--bin-space-4); }
.bin-mt-6 { margin-top: var(--bin-space-6); }
.bin-mb-4 { margin-bottom: var(--bin-space-4); }