/* ════════════════════════════════════════════════════════════════
   INSUCALC · Shell de navegação — Redesign v3
   Moldura (sidebar desktop / tab bar mobile) — sem as telas.
   Cores SEMPRE via tokens de tokens.css (nada hardcoded).
   ════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--ic-font-sans);
  font-size: var(--ic-font-size-base);
  background: var(--ic-color-bg);
  color: var(--ic-color-ink);
  /* Transição de tema no root (HANDOFF › Interactions) */
  transition: background-color var(--ic-motion-theme), color var(--ic-motion-theme);
}

/* 100dvh desconta as barras dinâmicas/áreas seguras no iOS; 100vh é o
   fallback para navegadores sem dvh. */
.ic-shell { display: flex; min-height: 100vh; min-height: 100dvh; }
/* [hidden] precisa vencer o display:flex acima (gate de sessão no boot). */
.ic-shell[hidden] { display: none; }

/* ── iOS: sem zoom ao focar campos (comportamento de app) ─────────────
   O Safari no iOS dá zoom automático quando o campo tem fonte < 16px.
   Garantimos >= 16px em TODOS os campos de digitação — só no iOS (via
   @supports -webkit-touch-callout, exclusivo do WebKit iOS) — sem alterar
   a escala tipográfica nas demais plataformas. !important porque precisa
   vencer as regras de fonte por classe (.ic-mm-input, .ic-login-input…). */
@supports (-webkit-touch-callout: none) {
  input, select, textarea { font-size: 16px !important; }
}

/* ── Sidebar (desktop ≥ 900px) ──────────────────────────────────── */
.ic-sidebar {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px 14px;
  background: var(--ic-color-card);
  border-right: 1px solid var(--ic-color-border);
}

.ic-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px 6px;
}
.ic-brand .ic-brand-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ic-color-brand);
  box-shadow: 0 0 0 4px var(--ic-color-tint);
}
.ic-brand .ic-brand-word {
  font-size: var(--ic-font-size-lg);
  font-weight: var(--ic-font-weight-semibold);
  letter-spacing: -0.01em;
}
.ic-brand .ic-brand-word em { font-style: normal; color: var(--ic-color-emerald); }

.ic-sidenav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 8px;
}

.ic-navitem {
  display: flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;                 /* área de toque */
  padding: 11px 12px;
  border: none;
  border-radius: 12px;
  background: transparent;
  color: var(--ic-color-muted);
  font-family: inherit;
  font-size: var(--ic-font-size-body);
  font-weight: var(--ic-font-weight-medium);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--ic-motion-hover), color var(--ic-motion-hover);
}
.ic-navitem:hover { background: var(--ic-color-hairline); }
.ic-navitem.is-active {
  background: var(--ic-color-tint);
  color: var(--ic-color-brand);
}
.ic-navitem:focus-visible {
  outline: 2px solid var(--ic-color-emerald);
  outline-offset: 2px;
}

/* Rodapé da sidebar: avatar + nome + Sair + toggle */
.ic-sidebar-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--ic-color-hairline);
}
.ic-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--ic-color-tint);
  color: var(--ic-color-brand);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--ic-font-size-sm);
  font-weight: var(--ic-font-weight-semibold);
  flex-shrink: 0;
}
.ic-user { flex: 1; min-width: 0; }
.ic-user .ic-user-name {
  font-size: var(--ic-font-size-sm);
  font-weight: var(--ic-font-weight-semibold);
}
.ic-signout {
  font-family: inherit;
  font-size: var(--ic-font-size-caption);
  color: var(--ic-color-muted);
  background: none; border: none; padding: 0;
  cursor: pointer;
}
.ic-signout:hover { color: var(--ic-color-red); }

/* Toggle de tema da sidebar (30×30 — HANDOFF; alvo de mouse) */
.ic-theme-toggle {
  width: 30px; height: 30px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--ic-color-border);
  border-radius: var(--ic-radius-stepper);
  background: var(--ic-color-card);
  color: var(--ic-color-muted);
  cursor: pointer;
}
.ic-theme-toggle:hover { color: var(--ic-color-ink); }
.ic-theme-toggle:focus-visible,
.ic-theme-mobile:focus-visible {
  outline: 2px solid var(--ic-color-emerald);
  outline-offset: 2px;
}

/* ── Conteúdo central (coluna 860px) ────────────────────────────── */
.ic-main { flex: 1; min-width: 0; }
.ic-screen-col {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 40px;
}

.ic-screen { display: block; animation: var(--ic-anim-fadeUp); }
.ic-screen:focus { outline: none; }

.ic-placeholder {
  min-height: 60vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px; text-align: center;
}
.ic-placeholder-kicker {
  font-size: var(--ic-font-size-kicker);
  font-weight: var(--ic-font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ic-tracking-kicker);
  color: var(--ic-color-emerald);
}
.ic-placeholder h1 {
  margin: 0;
  font-family: var(--ic-font-display);
  font-size: var(--ic-font-display-greeting);
  font-weight: var(--ic-font-weight-medium);
  color: var(--ic-color-ink);
}
.ic-placeholder p {
  margin: 0;
  font-size: var(--ic-font-size-sm);
  color: var(--ic-color-muted);
}

/* ── Tab bar (mobile < 900px) ───────────────────────────────────── */
.ic-tabbar {
  display: none;                    /* exibida só no mobile (media query) */
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 300;
  align-items: flex-end;
  justify-content: space-around;
  padding: 8px 8px calc(10px + env(safe-area-inset-bottom));
  background: var(--ic-color-tabbar);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--ic-color-border);
}
.ic-tabitem {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  min-width: 44px;
  min-height: 44px;                 /* área de toque */
  padding: 4px 10px;
  border: none;
  background: none;
  color: var(--ic-color-muted);
  font-family: inherit;
  cursor: pointer;
}
.ic-tabitem.is-active { color: var(--ic-color-brand); }
.ic-tablabel {
  font-size: var(--ic-font-size-nav);
  font-weight: var(--ic-font-weight-semibold);
}
.ic-tabitem:focus-visible {
  outline: 2px solid var(--ic-color-emerald);
  outline-offset: 2px;
  border-radius: var(--ic-radius-stepper);
}

/* "Calcular" — ação central elevada */
.ic-tabitem--fab {
  margin-top: -26px;
  color: var(--ic-color-brand);     /* label sempre em brand */
  padding: 0;
}
.ic-tabitem--fab .ic-fab {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--ic-color-brand);
  color: var(--ic-color-on-brand);
  border: 4px solid var(--ic-color-bg);   /* borda da cor do fundo */
  box-shadow: var(--ic-shadow-navcta);
}
.ic-tabitem--fab .ic-tablabel { margin-top: 3px; }

/* Toggle de tema flutuante — SÓ mobile (afordância temporária do shell;
   as telas Hoje/Ajustes trarão os seus próprios no Passo 5) */
.ic-theme-mobile {
  display: none;
  position: fixed;
  top: calc(10px + env(safe-area-inset-top));
  right: 14px;
  z-index: 310;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border: 1px solid var(--ic-color-border);
  border-radius: var(--ic-radius-input);
  background: var(--ic-color-card);
  color: var(--ic-color-muted);
  cursor: pointer;
}

/* ── Breakpoint 900px ───────────────────────────────────────────── */
@media (max-width: 899px) {
  .ic-sidebar { display: none; }
  .ic-tabbar { display: flex; }
  .ic-theme-mobile { display: flex; }
  /* Reserva = altura da tab bar (120px, já com folga p/ o FAB elevado)
     + safe-area do iPhone. Sem o env(), no PWA standalone o home
     indicator torna a barra mais alta e o fim do conteúdo fica atrás
     dela. Vale para TODAS as telas (todas montam em .ic-screen-col). */
  .ic-screen-col { padding-bottom: calc(120px + env(safe-area-inset-bottom)); }
}

@media (min-width: 900px) {
  .ic-tabbar, .ic-theme-mobile { display: none; }
}