:root {
  --azul: #0b5cab;
  --azul-escuro: #083f76;
  --cinza: #f4f6f9;
  --borda: #d4dae2;
  --texto: #15202b;
  --ok: #1a7f37;
  --erro: #b42318;
  --aviso: #8a6d00;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.5;
  color: var(--texto);
  background: var(--cinza);
}

.skip-link {
  position: absolute;
  left: -999px;
  background: #fff;
  padding: .6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: .5rem; top: .5rem; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); border: 0;
}

.topbar {
  background: var(--azul);
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
  padding: .75rem 1rem;
}
.brand { color: #fff; font-weight: 700; font-size: 1.2rem; text-decoration: none; }
.mainnav { display: flex; flex-wrap: wrap; gap: .25rem; }
.mainnav a {
  color: #fff; text-decoration: none; padding: .5rem .75rem; border-radius: .4rem;
}
.mainnav a[aria-current="page"], .mainnav a:hover { background: var(--azul-escuro); }
.userbox { margin-left: auto; display: flex; gap: .5rem; align-items: center; }
.userbox select { padding: .5rem; border-radius: .4rem; border: 1px solid var(--borda); font-size: 1rem; }

.container { max-width: 820px; margin: 0 auto; padding: 1rem; }

h1 { font-size: 1.6rem; margin: .3rem 0 1rem; }
h2 { font-size: 1.25rem; margin: 1.5rem 0 .6rem; }

a { color: var(--azul); }

.flash {
  max-width: 820px; margin: .75rem auto 0; padding: .8rem 1rem; border-radius: .5rem; font-weight: 600;
}
.flash-ok { background: #e6f4ea; color: var(--ok); border: 1px solid #a7d8b4; }
.flash-erro { background: #fdecea; color: var(--erro); border: 1px solid #f3b4ad; }
.flash-aviso { background: #fff7db; color: var(--aviso); border: 1px solid #f0d98a; }

.card {
  background: #fff; border: 1px solid var(--borda); border-radius: .6rem;
  padding: 1rem; margin-bottom: 1rem;
}

label { display: block; font-weight: 600; margin: .8rem 0 .3rem; }
input, select, textarea {
  width: 100%; padding: .7rem; font-size: 1rem; border: 1px solid var(--borda);
  border-radius: .5rem; background: #fff; color: var(--texto);
}
input:focus, select:focus, textarea:focus, a:focus, button:focus {
  outline: 3px solid #ffbf47; outline-offset: 2px;
}
textarea { min-height: 4rem; }

.btn, button {
  display: inline-block; cursor: pointer; font-size: 1rem; font-weight: 700;
  padding: .75rem 1.1rem; border-radius: .5rem; border: none;
  background: var(--azul); color: #fff; text-decoration: none;
}
.btn:hover, button:hover { background: var(--azul-escuro); }
.btn-sec { background: #e9eef5; color: var(--azul-escuro); }
.btn-perigo { background: #fdecea; color: var(--erro); border: 1px solid #f3b4ad; }

.list { list-style: none; padding: 0; margin: 0; }
.list li {
  background: #fff; border: 1px solid var(--borda); border-radius: .6rem;
  padding: .85rem 1rem; margin-bottom: .6rem;
}
.item-title { font-weight: 700; font-size: 1.05rem; }
.item-meta { color: #4a5a6a; font-size: .95rem; }

.badge { display: inline-block; padding: .15rem .55rem; border-radius: 1rem; font-size: .8rem; font-weight: 700; }
.badge-pendente { background: #fff7db; color: var(--aviso); }
.badge-confirmado { background: #e6f4ea; color: var(--ok); }
.badge-recusado { background: #fdecea; color: var(--erro); }

.row-inline { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .6rem; }
.invitee-row { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-bottom: .5rem; }
@media (max-width: 520px) { .invitee-row { grid-template-columns: 1fr; } }

.empty { color: #4a5a6a; font-style: italic; }
.authbox { max-width: 420px; margin: 2rem auto; }
.pagefoot { text-align: center; color: #6b7a89; padding: 2rem 1rem; font-size: .9rem; }