:root {
  --azul: #1e40af;
  --azul-claro: #2563eb;
  --fundo: #0f172a;
  --card: #1e293b;
  --borda: #334155;
  --texto: #e2e8f0;
  --suave: #94a3b8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--fundo);
  color: var(--texto);
}

/* ===== Login ===== */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}
.login-card {
  background: var(--card);
  padding: 32px;
  border-radius: 14px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .4);
}
.login-card h1 { margin: 0; font-size: 1.4rem; }
.login-sub { margin: 4px 0 24px; color: var(--suave); font-size: .9rem; }
.login-card label { display: block; margin: 14px 0 6px; font-size: .85rem; color: var(--suave); }
.login-card input {
  width: 100%;
  padding: 11px 12px;
  border-radius: 9px;
  border: 1px solid var(--borda);
  background: var(--fundo);
  color: #fff;
  font-size: .95rem;
}
.alert-erro {
  background: #7f1d1d;
  color: #fecaca;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: .85rem;
  margin-bottom: 8px;
}

.btn-primario {
  width: 100%;
  margin-top: 22px;
  padding: 12px;
  border: 0;
  border-radius: 9px;
  background: var(--azul-claro);
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s;
}
.btn-primario:hover { background: var(--azul); }
.btn-primario:disabled { opacity: .6; cursor: default; }

/* ===== Painel ===== */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--borda);
}
.topbar-titulo { font-weight: 600; }
.topbar-acoes { display: flex; align-items: center; gap: 16px; }
.topbar-user { color: var(--suave); font-size: .9rem; }
.btn-sair {
  color: #fecaca;
  text-decoration: none;
  border: 1px solid #7f1d1d;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: .85rem;
}
.btn-sair:hover { background: #7f1d1d; }

.abas {
  display: flex;
  gap: 8px;
  padding: 16px 24px 0;
}
.aba {
  background: transparent;
  border: 0;
  color: var(--suave);
  padding: 10px 16px;
  cursor: pointer;
  font-size: .95rem;
  border-bottom: 2px solid transparent;
}
.aba.ativa { color: #fff; border-bottom-color: var(--azul-claro); }

.conteudo { padding: 24px; max-width: 900px; margin: 0 auto; }
.painel-aba { display: none; }
.painel-aba.ativa { display: block; }
.aba-desc { color: var(--suave); font-size: .9rem; margin-bottom: 20px; }

.card-produto {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 16px;
}
.card-produto h3 { margin: 0 0 12px; font-size: 1.05rem; }
.linha-origem {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid var(--borda);
}
.origem-label { color: var(--suave); font-size: .9rem; }
.campo-valor { display: flex; align-items: center; gap: 6px; font-size: .9rem; }
.campo-valor input {
  width: 110px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--borda);
  background: var(--fundo);
  color: #fff;
  text-align: right;
}
.btn-publicar { max-width: 240px; }

/* ===== Imagens ===== */
.grade-imagens {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.card-imagem {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card-imagem img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--fundo);
}
.img-nome {
  font-size: .78rem;
  color: var(--suave);
  word-break: break-all;
}
.btn-trocar {
  text-align: center;
  background: var(--azul-claro);
  color: #fff;
  padding: 8px;
  border-radius: 8px;
  font-size: .82rem;
  cursor: pointer;
}
.btn-trocar:hover { background: var(--azul); }

/* ===== Mensagens ===== */
.msg { margin-top: 14px; font-size: .88rem; min-height: 20px; }
.msg.ok { color: #86efac; }
.msg.erro { color: #fca5a5; }
.msg.info { color: #93c5fd; }