:root {
  --color-primary: #0f172a;
  --color-on-primary: #ffffff;
  --color-accent: #0369a1;
  --color-on-accent: #ffffff;
  --color-background: #f8fafc;
  --color-foreground: #020617;
  --color-card: #ffffff;
  --color-muted: #e8ecf1;
  --color-muted-foreground: #475569;
  --color-border: #e2e8f0;
  --color-destructive: #dc2626;
  --color-on-destructive: #ffffff;
  --color-ring: #0f172a;
  --color-ok: #166534;
  --color-ok-bg: #dcfce7;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --font-sans: "Fira Sans", "Segoe UI", sans-serif;
  --font-data: "Fira Code", ui-monospace, monospace;
  color: var(--color-foreground);
  background: var(--color-background);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { min-height: 44px; min-width: 44px; cursor: pointer; }
button, a, input, select, textarea { transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
}
h1, h2 { font-family: var(--font-sans); font-weight: 600; letter-spacing: 0; margin: 0; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.1rem; }
p { margin: 0; }

.entrada {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
}
.entrada-lado {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--space-2);
}
.entrada-lado p { max-width: 36ch; color: #e2e8f0; }
.entrada form {
  display: grid;
  align-content: center;
  gap: var(--space-1);
  padding: var(--space-4);
  max-width: 420px;
}
label { font-weight: 600; font-size: 0.95rem; }
input, select, textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 12px;
  background: var(--color-card);
}
textarea { min-height: 88px; resize: vertical; }
.primario, .entrada button[type="submit"] {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
}
.secundario {
  background: var(--color-card);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0 12px;
}
.perigo {
  background: var(--color-card);
  color: var(--color-destructive);
  border: 1px solid var(--color-destructive);
  border-radius: 8px;
  padding: 0 12px;
}
.erro { color: var(--color-destructive); min-height: 1.5em; }
.acoes { display: flex; flex-wrap: wrap; gap: var(--space-1); align-items: end; }

.shell { min-height: 100vh; display: grid; grid-template-columns: 220px 1fr; }
.lado {
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
}
.lado .marca { font-weight: 700; margin: 0; }
.menu { display: grid; gap: 8px; }
.menu button {
  justify-content: flex-start;
  text-align: left;
  background: transparent;
  color: #e2e8f0;
  border: 0;
  border-radius: 8px;
  padding: 0 12px;
}
.menu button[aria-current="true"] { background: var(--color-on-primary); color: var(--color-primary); }
.lado #sair { margin-top: auto; background: transparent; color: #e2e8f0; border: 1px solid #334155; border-radius: 8px; }
.miolo { display: flex; flex-direction: column; min-width: 0; }
.topo {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
}
#tela { padding: var(--space-3); display: grid; gap: var(--space-2); scroll-margin-top: 72px; }
.grade { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-2); }
.cartao, .ficha, .conversa, .lista button {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}
.cartao, .ficha { padding: var(--space-2); }
.numero { font-family: var(--font-data); font-size: 1.75rem; font-weight: 600; line-height: 1.2; }
.cartao p:first-child { color: var(--color-muted-foreground); font-size: 0.95rem; }
.selo {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  background: var(--color-muted);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
}
.selo.online { background: var(--color-ok-bg); color: var(--color-ok); }
.selo.offline { background: #fee2e2; color: var(--color-destructive); }
.duas { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: var(--space-2); align-items: start; }
.lista { display: grid; gap: 8px; align-content: start; }
.lista button { text-align: left; padding: 10px 12px; }
.lista button[aria-current="true"] { border-color: var(--color-accent); }
.bolhas {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--space-2);
  min-height: 240px;
  max-height: 420px;
  overflow: auto;
}
.bolha { max-width: 75%; padding: 8px 12px; border-radius: 8px; white-space: pre-wrap; }
.bolha.cliente { background: var(--color-muted); }
.bolha.suporte { align-self: flex-end; background: #e0f2fe; }
.envio, .ficha form, .ficha { display: grid; gap: 8px; }
.rolagem { overflow-x: auto; }
.tabela { width: 100%; border-collapse: collapse; background: var(--color-card); }
.tabela th, .tabela td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.tabela th { font-size: 0.85rem; color: var(--color-muted-foreground); font-weight: 600; }
@media (max-width: 800px) {
  .entrada, .shell, .grade, .duas { grid-template-columns: 1fr; }
  .entrada-lado { min-height: 180px; }
  .menu { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; }
  .lado #sair { margin-top: 0; }
}
@media (prefers-reduced-motion: reduce) {
  button, a, input, select, textarea { transition: none; }
}