/* Componentes compartidos: botones, cabecera, controles de formulario y pie. */
/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 .9375rem/1 var(--f-body); padding: 14px 20px; border-radius: 6px; border: 1.5px solid transparent;
  text-decoration: none; cursor: pointer; min-height: 46px; text-align: center;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--fg); }
.btn-ghost:hover { background: var(--fg); color: var(--bg); }
.btn-sm { padding: 10px 14px; min-height: 40px; font-size: .875rem; }
.btn[aria-disabled="true"] { opacity: .6; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Cabecera */
.top {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30;
  background: var(--surface); border-bottom: 1px solid var(--line);
}
.top-in { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding-block: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.brand svg { width: 28px; height: 34px; flex: none; }
.brand b { font: 800 1.2rem/1 var(--f-display); font-stretch: 125%; letter-spacing: .02em; text-transform: uppercase; }
.nav { display: flex; gap: 4px; min-width: 0; }
.nav a { font-weight: 500; font-size: .9375rem; text-decoration: none; padding: 8px 12px; border-radius: 6px; white-space: nowrap; color: var(--muted); }
.nav a:hover { color: var(--fg); background: var(--bg-alt); }
@media (max-width: 860px) {
  .nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
}

.nav a[aria-current="page"] { color: var(--fg); background: var(--bg-alt); }

/* Controles de formulario */
input[type="text"], input[type="tel"], select, textarea {
  width: 100%; font: 400 1rem/1.4 var(--f-body); color: var(--fg); background: var(--surface);
  border: 1.5px solid var(--line); border-radius: 6px; padding: 12px 14px; min-height: 46px;
}
textarea { resize: vertical; min-height: 92px; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .8; }

/* Pie */
.foot { background: var(--navy); color: var(--navy-fg); padding-block: 40px; }
.foot-in { display: flex; flex-wrap: wrap; gap: 18px 40px; justify-content: space-between; align-items: center; }
.foot p { color: var(--navy-muted); font-size: .875rem; }
.foot a { color: var(--navy-fg); }
.foot .brand b { color: var(--navy-fg); }
.toast { position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--fg); color: var(--bg); padding: 12px 18px; border-radius: 6px; font-weight: 600; font-size: .9rem; z-index: 60; max-width: calc(100% - 32px); }