/* Base do sistema: tokens de cor, tipografia e componentes compartilhados entre o
   backoffice e o guichê.

   Tudo sai de variáveis porque o tema claro e o escuro precisam funcionar nos dois:
   a versão anterior declarava fundo escuro no `body` e branco fixo nos painéis, o
   que deixava texto claro sobre painel branco em qualquer máquina configurada no
   escuro — ilegível justamente no balcão, onde ninguém para para ajustar tema. */

:root {
  color-scheme: light dark;

  --bg: #f4f5f7;
  --superficie: #ffffff;
  --superficie-2: #f8fafc;
  --fg: #14171a;
  --muted: #5b6069;
  --border: #d9dee5;
  --border-forte: #b9c1cc;

  --accent: #1f5fd0;
  --accent-fg: #ffffff;
  --accent-suave: #eef4ff;

  --ok: #15683a;
  --ok-suave: #e8f5ec;
  --aviso: #7a5300;
  --aviso-suave: #fdf6e3;
  --danger: #b3261e;
  --danger-suave: #fdecea;

  --raio: 10px;
  --raio-sm: 7px;
  --sombra: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  --foco: 0 0 0 3px rgba(31, 95, 208, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --superficie: #171a20;
    --superficie-2: #1d212a;
    --fg: #e8eaed;
    --muted: #a2a9b4;
    --border: #2a2f39;
    --border-forte: #3a414e;

    --accent: #5b93ff;
    --accent-fg: #0b1220;
    --accent-suave: #17243d;

    --ok: #5ed08c;
    --ok-suave: #12291d;
    --aviso: #e5c065;
    --aviso-suave: #2a2413;
    --danger: #ff8f88;
    --danger-suave: #2e1614;

    --sombra: none;
    --foco: 0 0 0 3px rgba(91, 147, 255, 0.4);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --- navegação ------------------------------------------------------------ */

nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1.25rem;
  background: var(--superficie);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

nav a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  border-radius: var(--raio-sm);
  white-space: nowrap;
}
nav a:hover { background: var(--accent-suave); color: var(--accent); }
nav a.ativo { background: var(--accent-suave); color: var(--accent); }
nav .spacer { flex: 1; }
nav .usuario { color: var(--muted); font-size: 0.9rem; padding-right: 0.5rem; }

main { max-width: 980px; margin: 1.75rem auto 3rem; padding: 0 1.25rem; }

h1 { font-size: 1.45rem; margin: 0 0 1.1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; margin: 0 0 0.35rem; letter-spacing: -0.005em; }
h3 { font-size: 0.95rem; margin: 1.25rem 0 0.25rem; }

/* --- tabelas -------------------------------------------------------------- */

table { width: 100%; border-collapse: collapse; margin-top: 0.9rem; }
th, td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
}
th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom-color: var(--border-forte);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--superficie-2); }

td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.total td { border-top: 2px solid var(--border-forte); font-weight: 700; }

/* --- botões --------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  min-height: 2.5rem;
  border-radius: var(--raio-sm);
  border: 1px solid var(--border-forte);
  background: var(--superficie);
  color: var(--fg);
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 500;
  font-family: inherit;
  text-decoration: none;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.btn:hover { background: var(--superficie-2); border-color: var(--muted); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--foco); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); filter: brightness(1.08); }

.btn-perigo { color: var(--danger); border-color: var(--danger); }
.btn-perigo:hover { background: var(--danger-suave); }

.btn-toggle-on { color: var(--fg); }
.btn-toggle-off { color: var(--danger); border-color: var(--danger); }

/* --- formulários ---------------------------------------------------------- */

form.stack { display: flex; flex-direction: column; gap: 0.9rem; max-width: 460px; }

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

input, select, textarea {
  padding: 0.6rem 0.7rem;
  border-radius: var(--raio-sm);
  border: 1px solid var(--border-forte);
  background: var(--superficie);
  color: var(--fg);
  font-size: 1rem;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--foco);
}
input[readonly] { background: var(--superficie-2); color: var(--muted); }
input::placeholder { color: var(--muted); opacity: 0.7; }

fieldset.bloco {
  border: 1px solid var(--border);
  border-radius: var(--raio);
  padding: 1rem 1.1rem 1.1rem;
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
fieldset.bloco legend {
  padding: 0 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* --- painéis e avisos ----------------------------------------------------- */

.painel {
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--raio);
  background: var(--superficie);
  box-shadow: var(--sombra);
  margin-bottom: 1.15rem;
}
.painel.destaque { border-color: var(--accent); background: var(--accent-suave); }
.painel.alerta { border-color: var(--danger); background: var(--danger-suave); }
.painel.alerta h2 { color: var(--danger); }

.linha-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0.7rem; margin-top: 0.75rem; }
.linha-form input, .linha-form select { min-width: 11rem; }
.linha-acoes { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }

.muted { color: var(--muted); font-size: 0.87rem; }
.erro { color: var(--danger); font-weight: 600; margin-top: 0.5rem; }
.ok { color: var(--ok); font-weight: 700; }
hr { border: none; border-top: 1px solid var(--border); margin: 1.35rem 0; }

.badge-aberto, .badge-alerta {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.badge-aberto { background: var(--ok-suave); color: var(--ok); }
.badge-alerta { background: var(--danger-suave); color: var(--danger); }

.linha-alerta { background: var(--danger-suave); }
td.negativo { color: var(--danger); }