:root {
  --azul: #1f3a5f;
  --tijolo: #c8553d;
  --papel: #f4efe6;
  --tinta: #1c1f24;
  --cinza: #6b7280;
  --linha: #e3ddd2;
  --branco: #ffffff;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--tinta);
  background: var(--papel);
}
[hidden] { display: none !important; }

/* Entrada */
#login { min-height: 100%; display: grid; place-items: center; padding: 24px max(16px, env(safe-area-inset-left)); }
.login-box { width: 100%; max-width: 360px; background: var(--branco); border-radius: 14px; padding: 24px; box-shadow: 0 6px 24px rgba(31,58,95,.12); }
.login-box h1 { margin: 0; color: var(--azul); font-size: 26px; }
.sub { margin: 4px 0 20px; color: var(--cinza); }
#login-form { display: grid; gap: 10px; }
label { font-weight: 600; font-size: 13px; }
input { font: inherit; padding: 12px; border: 1px solid var(--linha); border-radius: 10px; }

/* Botões */
.btn { font: inherit; border: 1px solid var(--linha); background: var(--branco); color: var(--tinta);
  padding: 10px 14px; border-radius: 10px; text-decoration: none; cursor: pointer; display: inline-block; }
.btn.primary { background: var(--azul); border-color: var(--azul); color: #fff; font-weight: 600; }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.tool { box-shadow: 0 2px 8px rgba(0,0,0,.15); font-weight: 600; }
.btn.tool[aria-pressed="true"] { background: var(--azul); color: #fff; border-color: var(--azul); }
.note { color: var(--cinza); font-size: 13px; margin: 6px 0; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

/* App */
/* Coluna flexível: o aviso escondido não pode "roubar" a linha do mapa */
#app { height: 100%; height: 100dvh; display: flex; flex-direction: column; }
#app > .top, #app > .aviso, #app > .tabs { flex: none; }
.top { display: flex; align-items: center; gap: 10px; padding: calc(8px + env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
  background: var(--azul); color: #fff; }
.top .who { margin-left: auto; opacity: .85; font-size: 13px; }
.top .btn.ghost { color: #fff; border-color: rgba(255,255,255,.4); }
.aviso { background: #fff4d6; padding: 8px 12px; font-size: 13px; }
main { position: relative; flex: 1 1 auto; min-height: 0; }
#map { position: absolute; inset: 0; }
.map-tools { position: absolute; left: 10px; top: 10px; display: flex; flex-direction: column; gap: 8px; z-index: 2; }
.card { position: absolute; left: 10px; right: 10px; bottom: 10px; z-index: 3; background: var(--branco);
  border-radius: 14px; padding: 14px; box-shadow: 0 6px 24px rgba(0,0,0,.2); max-width: 520px; margin: 0 auto; }
.tabs { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--branco); border-top: 1px solid var(--linha);
  padding-bottom: env(safe-area-inset-bottom); }
.tab { font: inherit; border: 0; background: none; padding: 12px 4px; color: var(--cinza); }
.tab.on { color: var(--azul); font-weight: 700; box-shadow: inset 0 3px 0 var(--tijolo); }
.tab:disabled { opacity: .45; }