:root {
  --agua: #0e8f9c;
  --agua-esc: #0a6772;
  --agua-claro: #e6f5f6;
  --areia: #f4f7f8;
  --texto: #22303a;
  --cinza: #64748b;
  --borda: #dfe6e9;
  --coral: #e8663d;
  --verde: #1f8a4c;
  --amarelo: #c8871a;
  --vermelho: #c0392b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--areia);
  color: var(--texto);
  font-size: 16px;
}
a { color: var(--agua-esc); }

/* Topbar */
.topbar {
  background: var(--agua-esc);
  color: #fff;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand a { color: #fff; text-decoration: none; font-size: 1.3rem; font-weight: 700; padding: 14px 0; }
.brand span { color: var(--coral); }
.menu-toggle { margin-left: auto; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; }
.topbar nav { display: none; width: 100%; flex-direction: column; padding-bottom: 8px; }
.topbar nav.open { display: flex; }
.topbar nav a { color: #fff; text-decoration: none; padding: 10px 4px; border-top: 1px solid rgba(255,255,255,.15); }
.topbar nav a.sair { color: var(--coral); }

@media (min-width: 900px) {
  .menu-toggle { display: none; }
  .topbar nav { display: flex !important; flex-direction: row; width: auto; margin-left: auto; padding: 0; gap: 2px; }
  .topbar nav a { border: none; padding: 18px 10px; }
  .topbar nav a:hover { background: var(--agua); }
}

/* Main */
main { max-width: 1080px; margin: 0 auto; padding: 18px 16px 60px; }
h1 { font-size: 1.5rem; margin: 8px 0 4px; }
h2 { font-size: 1.15rem; margin-top: 28px; color: var(--agua-esc); }
.subtitulo, .ajuda { color: var(--cinza); font-size: .9rem; margin-top: 0; }
.titulo-linha { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }

/* Flash */
.flash { padding: 12px 14px; border-radius: 8px; margin-bottom: 14px; font-size: .95rem; }
.flash.ok { background: #dff3ec; color: var(--verde); border: 1px solid #a9dbcd; }
.flash.erro { background: #fdecea; color: var(--vermelho); border: 1px solid #f3b6b0; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 16px 0; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(4, 1fr); } }
.card { background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.card-num { font-size: 1.5rem; font-weight: 700; color: var(--agua-esc); }
.card-label { color: var(--cinza); font-size: .82rem; }
.card.agua { background: var(--agua-claro); border-color: #bfe3e6; }
.card.coral .card-num { color: var(--coral); }

/* Botoes */
.btn-primary, .btn-secundario, .btn-perigo {
  display: inline-block; border: none; border-radius: 8px; padding: 11px 18px;
  font-size: .95rem; cursor: pointer; text-decoration: none; font-weight: 600;
}
.btn-primary { background: var(--agua); color: #fff; }
.btn-primary:hover { background: var(--agua-esc); }
.btn-secundario { background: #fff; color: var(--texto); border: 1px solid var(--borda); }
.btn-perigo { background: var(--vermelho); color: #fff; }
.btn-mini { background: var(--agua); color: #fff; border: none; border-radius: 6px; padding: 6px 10px; cursor: pointer; font-size: .82rem; text-decoration: none; }
.acoes-topo { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.acoes-form { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.form-excluir { display: inline; }

/* Tabelas */
.tabela-scroll { overflow-x: auto; margin-top: 12px; }
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; margin-top: 12px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--borda); font-size: .9rem; white-space: nowrap; }
th { background: var(--agua-claro); color: var(--agua-esc); font-weight: 600; }
tr.inativo { opacity: .5; }
.badge { padding: 3px 9px; border-radius: 20px; font-size: .75rem; font-weight: 600; }
.badge.on { background: #dff3ec; color: var(--verde); }
.badge.off { background: #eee; color: var(--cinza); }
.link { background: none; border: none; color: var(--agua-esc); cursor: pointer; text-decoration: underline; padding: 0; font-size: .9rem; }
.vazio { color: var(--cinza); padding: 20px 0; }
.right { text-align: right; }

/* Formularios */
.form { background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 18px; margin-top: 12px; }
label { display: block; font-weight: 600; font-size: .86rem; margin: 12px 0 5px; }
input, select, textarea {
  width: 100%; padding: 10px; border: 1px solid var(--borda); border-radius: 8px;
  font-size: 1rem; font-family: inherit; background: #fff;
}
textarea { resize: vertical; }
.grid2 { display: grid; grid-template-columns: 1fr; gap: 2px 16px; }
@media (min-width: 640px) { .grid2 { grid-template-columns: 1fr 1fr; } }
.grid3 { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 14px; }
@media (min-width: 640px) { .grid3 { grid-template-columns: 1fr 1fr 1fr; } }
small.ajuda { display: block; margin-top: 4px; }

/* Chips de saldo de racao */
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
.chip { background: #fff; border: 1px solid var(--borda); border-radius: 10px; padding: 10px 14px; }
.chip b { display: block; font-size: 1.15rem; color: var(--agua-esc); }
.chip.baixo b { color: var(--vermelho); }
.chip span { color: var(--cinza); font-size: .8rem; }

/* Graficos: miniaturas fixas de 5x5 cm, todas na primeira dobra */
.grid-graficos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 10px; justify-content: start; }
@media (min-width: 900px) { .grid-graficos { grid-template-columns: repeat(4, max-content); } }
.grafico-box { background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 10px; cursor: pointer; }
.grafico-box:hover { border-color: var(--agua); box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.gb-topo { display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.grafico-box h3 { margin: 0; font-size: .85rem; color: var(--agua-esc); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gb-exp { background: none; border: none; color: var(--cinza); font-size: 1rem; cursor: pointer; padding: 0 2px; line-height: 1; }
.grafico-box:hover .gb-exp { color: var(--agua); }
.gb-sub { display: block; width: 100%; margin: 4px 0 6px; font-size: .72rem; color: var(--cinza); }
select.gb-sub { padding: 3px 6px; border-radius: 6px; height: 26px; }
.gb-sub.texto { height: 26px; line-height: 26px; }
.gb-canvas { position: relative; width: 5cm; max-width: 100%; aspect-ratio: 1 / 1; }
.gb-canvas canvas { position: absolute; inset: 0; }
canvas { max-width: 100%; }

/* Modal do grafico expandido */
.modal-grafico { display: none; position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,.55); padding: 16px; }
.modal-grafico.on { display: flex; align-items: center; justify-content: center; }
.mg-card { background: #fff; border-radius: 14px; padding: 18px; width: min(900px, 100%); max-height: 92vh; overflow: auto; }
.mg-param { max-width: 260px; margin-top: 12px; }
.mg-canvas { position: relative; height: min(58vh, 440px); margin-top: 12px; }
.mg-canvas canvas { position: absolute; inset: 0; }

/* Layout do viveiro: aba lateral + conteudo */
.viveiro-layout { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 8px; }
@media (min-width: 820px) { .viveiro-layout { grid-template-columns: 190px 1fr; align-items: start; } }
.aba-lateral { display: flex; flex-direction: row; overflow-x: auto; gap: 6px; background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 8px; }
.aba-lateral a { flex: 0 0 auto; text-decoration: none; color: var(--texto); padding: 10px 14px; border-radius: 8px; font-weight: 600; font-size: .9rem; white-space: nowrap; }
.aba-lateral a.ativo { background: var(--agua); color: #fff; }
.aba-lateral a:hover { background: var(--agua-claro); }
.aba-lateral a.ativo:hover { background: var(--agua); }
@media (min-width: 820px) { .aba-lateral { flex-direction: column; position: sticky; top: 70px; } }
.aba-conteudo { min-width: 0; }

/* Cartoes de viveiro no painel geral */
.grid-viveiros { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 12px; }
@media (min-width: 720px) { .grid-viveiros { grid-template-columns: 1fr 1fr; } }
.viveiro-card { background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 14px; }
.vc-topo { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.vc-topo b { font-size: 1.05rem; color: var(--agua-esc); }
.vc-sit { font-size: .75rem; color: var(--cinza); margin-left: 6px; }
.vc-meta { color: var(--cinza); font-size: .82rem; margin: 6px 0 10px; }
.vc-graficos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.vc-g { border: 1px solid var(--borda); border-radius: 8px; padding: 8px; }
.vc-g span { display: block; font-size: .72rem; color: var(--cinza); margin-bottom: 4px; }
.vc-g i { font-style: normal; color: var(--agua-esc); }

/* Login */
.login-wrap { display: flex; justify-content: center; align-items: center; min-height: 82vh; }
.login-card { background: #fff; border: 1px solid var(--borda); border-radius: 16px; padding: 34px 28px; width: 100%; max-width: 360px; box-shadow: 0 6px 24px rgba(0,0,0,.06); }
.login-logo { text-align: center; margin: 0; font-size: 1.9rem; }
.login-logo span { color: var(--coral); }
.login-sub { text-align: center; color: var(--cinza); margin: 4px 0 20px; }
.login-card .btn-primary { width: 100%; margin-top: 20px; text-align: center; }