/* =============================================================================
   Máquinas Comodato — sistema de design (hand-crafted, sem framework)
   Diretrizes: refinamento estético premium (microespaçamento, hierarquia,
   estados polidos), CSS moderno (Grid/Flexbox, propriedades lógicas, clamp()),
   estética minimalista (Linear/Vercel/Apple): cantos consistentes, sombras em
   camadas, transições suaves. Acessível (WCAG AA).
   ============================================================================= */

/* ---- Tokens ---------------------------------------------------------------- */
:root {
  /* Tema fixo claro — a suíte de Orçamentos é sempre light (não segue o tema do SO). */
  color-scheme: light;

  /* Tipografia fluida */
  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --step--1: clamp(0.78rem, 0.74rem + 0.20vw, 0.88rem);
  --step-0:  clamp(0.92rem, 0.88rem + 0.22vw, 1.02rem);
  --step-1:  clamp(1.14rem, 1.05rem + 0.45vw, 1.40rem);
  --step-2:  clamp(1.45rem, 1.28rem + 0.85vw, 2.00rem);
  --step-code: clamp(1.55rem, 1.30rem + 1.20vw, 2.30rem);

  /* Cores (light) — alinhadas ao padrão da suíte de Orçamentos:
     neutros slate + acento azul (blue-600), como no portal e nos apps Brasil/HOF/Médicos. */
  --canvas:      #f8fafc; /* slate-50  (portal: bg-slate-50) */
  --surface:     #ffffff;
  --surface-2:   #f1f5f9; /* slate-100 */
  --ink:         #0f172a; /* slate-900 */
  --ink-soft:    #475569; /* slate-600 */
  --ink-faint:   #94a3b8; /* slate-400 */
  --border:      #e2e8f0; /* slate-200 */
  --border-strong:#cbd5e1; /* slate-300 */

  --accent:      #2563eb; /* blue-600  (acento primário da suíte) */
  --accent-ink:  #ffffff;
  --accent-hover:#1d4ed8; /* blue-700 */
  --accent-soft: #eff6ff; /* blue-50 */
  --accent-line: #bfdbfe; /* blue-200 */

  --amber-bg:#fffbeb; --amber-line:#f6dd9b; --amber-ink:#8a5a00;
  --ok-bg:#f0fdf4;   --ok-line:#bbf7d0;    --ok-ink:#166534;

  /* Raios consistentes (ref. Linear: input/botão ~8px, card ~12-16px) */
  --radius-sm: 0.5rem;   /* inputs, botões */
  --radius:    0.75rem;  /* elementos médios */
  --radius-lg: 1rem;     /* cards */
  --radius-pill: 999px;

  /* Sombras em camadas — frias e contidas (ref. Stripe rgba(0,55,112,.08)) */
  --shadow-sm: 0 1px 2px rgba(13,37,64,0.04);
  --shadow:    0 1px 3px rgba(13,37,64,0.06), 0 8px 24px -12px rgba(13,37,64,0.10);
  --shadow-lg: 0 1px 3px rgba(13,37,64,0.06), 0 18px 40px -16px rgba(13,37,64,0.16);
  --ring:      0 0 0 3px color-mix(in srgb, var(--accent) 26%, transparent);

  --transition: 160ms cubic-bezier(0.2, 0.6, 0.2, 1);
  --measure: 46rem;
}

/* Dark mode removido de propósito: a página deve ficar sempre clara,
   igual ao portal, independente do tema do sistema operacional. */

/* ---- Reset enxuto ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-block-size: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1 { font-size: var(--step-1); line-height: 1.18; letter-spacing: -0.03em; margin: 0; } /* tracking fechado (ref. Linear) */
p { margin: 0; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---- Utilidades de acessibilidade ----------------------------------------- */
.sr-only {
  position: absolute; inline-size: 1px; block-size: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; inset-block-start: -100px; inset-inline-start: 0.75rem; z-index: 100;
  background: var(--surface); color: var(--ink); padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm); box-shadow: var(--shadow); transition: inset-block-start var(--transition);
}
.skip-link:focus { inset-block-start: 0.75rem; }
:where(a, button, input, select, [tabindex]):focus-visible {
  outline: none; box-shadow: var(--ring); border-radius: var(--radius-sm);
}

/* ---- Layout base ----------------------------------------------------------- */
.wrap { inline-size: min(100% - 2rem, var(--measure)); margin-inline: auto; }

.site-header {
  position: sticky; inset-block-start: 0; z-index: 20;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-block-end: 1px solid var(--border);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; block-size: 4rem; gap: 1rem; }
.brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; color: inherit; }
.brand__mark {
  inline-size: 2.25rem; block-size: 2.25rem; border-radius: var(--radius-sm);
  background: var(--accent); /* acento chapado, sem gradiente (ref. Linear) */
  color: var(--accent-ink); display: grid; place-items: center; font-weight: 800; font-size: 1.1rem;
}
.brand__title { font-weight: 700; letter-spacing: -0.02em; }
.tag {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: var(--step--1); font-weight: 600; padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill); background: var(--accent-soft); color: var(--accent);
  border: 1px solid var(--accent-line);
}
.header-link { color: var(--ink-soft); text-decoration: none; font-size: var(--step--1); font-weight: 500; transition: color var(--transition); }
.header-link:hover { color: var(--accent); }

main { flex: 1; }
.stack > * + * { margin-block-start: 1.5rem; }

/* ---- Banner / notas -------------------------------------------------------- */
.note {
  border-radius: var(--radius); padding: 0.85rem 1rem; font-size: var(--step--1);
  border: 1px solid var(--amber-line); background: var(--amber-bg); color: var(--amber-ink);
}
.note strong { color: inherit; }

/* ---- Cards ----------------------------------------------------------------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: clamp(1.25rem, 1rem + 1.5vw, 2rem);
  box-shadow: var(--shadow);
}
.card--auth { max-inline-size: 26rem; margin-inline: auto; }
.card__head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.muted { color: var(--ink-soft); font-size: var(--step--1); margin-block-start: 0.25rem; }
.pill-soft {
  font-size: var(--step--1); font-weight: 500; color: var(--ink-soft);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 0.2rem 0.7rem; border-radius: var(--radius-pill);
}

/* ---- Formulário ------------------------------------------------------------ */
.form { margin-block-start: 1.4rem; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem 1.1rem; border: 0; padding: 0; margin: 0; }
.grid--single { grid-template-columns: 1fr; }
.col-span { grid-column: 1 / -1; }
@media (max-inline-size: 34rem) { .grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.label { font-size: var(--step--1); font-weight: 600; color: var(--ink); }
.hint { font-size: 0.74rem; color: var(--ink-faint); margin-block-start: 0.15rem; }

.input, .select {
  inline-size: 100%; font: inherit; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); padding: 0.6rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.input::placeholder { color: var(--ink-faint); }
.input:hover, .select:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--border-strong)); }
.input:focus-visible, .select:focus-visible { border-color: var(--accent); box-shadow: var(--ring); }
/* Neutraliza o preenchimento cinza/amarelo do autofill do navegador (mantém a superfície da marca). */
.input:-webkit-autofill,
.input:-webkit-autofill:hover,
.input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink);
  -webkit-box-shadow: 0 0 0 100px var(--surface) inset;
  caret-color: var(--ink);
  transition: background-color 9999s ease-out 0s;
}
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.75rem center; padding-inline-end: 2.25rem;
}

/* Painel de parâmetros derivados */
.readout {
  grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.75rem 0.9rem; margin: 0;
  font-size: var(--step--1);
}
.readout dt { color: var(--ink-soft); display: inline; }
.readout dd { display: inline; margin: 0; font-weight: 600; color: var(--ink); }

/* ---- Botões ---------------------------------------------------------------- */
.btn {
  --btn-bg: var(--accent); --btn-ink: var(--accent-ink);
  inline-size: 100%; font: inherit; font-weight: 600; cursor: pointer;
  color: var(--btn-ink); background: var(--btn-bg);
  border: 1px solid transparent; border-radius: var(--radius-sm);
  padding: 0.7rem 1rem; box-shadow: var(--shadow-sm);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }
.btn[aria-busy='true'] { cursor: progress; }

/* ---- Feedback (definido pelo app.js via data-tipo) ------------------------- */
.feedback { margin-block-start: 1rem; border-radius: var(--radius-sm); padding: 0.6rem 0.85rem; font-size: var(--step--1); border: 1px solid; }
.feedback[data-tipo='erro'] { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-line); }
.feedback[data-tipo='info'] { color: var(--ink-soft); background: var(--surface-2); border-color: var(--border); }

/* ---- Resultado (código gerado) -------------------------------------------- */
.result { border: 1px solid var(--accent-line); box-shadow: var(--shadow-lg); }
.result__warn { border-radius: var(--radius-sm); background: var(--accent-soft); border: 1px solid var(--accent-line); color: var(--accent); padding: 0.7rem 0.9rem; font-size: var(--step--1); margin-block-end: 1.1rem; }
.result__label { text-align: center; text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.7rem; color: var(--ink-faint); margin-block-end: 0.5rem; }
.result__code { text-align: center; font-size: var(--step-code); font-weight: 700; letter-spacing: 0.18em; color: var(--ink); }
.result__meta { text-align: center; font-size: 0.78rem; color: var(--ink-faint); margin-block-start: 0.7rem; }

/* ---- Modal / pop-up (liberação do TI) -------------------------------------- */
.modal {
  border: 0; padding: 0; background: transparent;
  max-inline-size: min(100% - 2rem, 26rem); inline-size: 100%;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  color: var(--ink);
}
.modal::backdrop { background: rgba(15, 23, 42, 0.45); backdrop-filter: blur(2px); }
.modal[open] { animation: modal-in 180ms cubic-bezier(0.2, 0.6, 0.2, 1); }
@keyframes modal-in { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: none; } }
.modal__card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: clamp(1.4rem, 1rem + 1.5vw, 2rem);
  display: flex; flex-direction: column; gap: 0.4rem; text-align: center;
}
.modal__icon {
  inline-size: 3rem; block-size: 3rem; margin: 0 auto 0.4rem; font-size: 1.5rem;
  display: grid; place-items: center; border-radius: var(--radius-pill);
  background: var(--accent-soft); border: 1px solid var(--accent-line);
}
.modal__title { font-size: var(--step-1); font-weight: 700; letter-spacing: -0.02em; }
.modal__msg { color: var(--ink-soft); font-size: var(--step--1); margin-block: 0.15rem 0.9rem; }
.modal .field { text-align: start; }
.modal__actions { display: flex; gap: 0.75rem; margin-block-start: 1.2rem; }
.modal__actions .btn { inline-size: auto; flex: 1; }
.btn--ghost {
  --btn-bg: var(--surface); --btn-ink: var(--ink-soft);
  border-color: var(--border-strong); box-shadow: none;
}
.btn--ghost:hover { background: var(--surface-2); border-color: var(--border-strong); }

/* ---- Footer ---------------------------------------------------------------- */
.site-footer { border-block-start: 1px solid var(--border); margin-block-start: 2.5rem; padding-block: 1.5rem; background: var(--surface); }
.site-footer p { text-align: center; color: var(--ink-faint); font-size: 0.75rem; }
.site-footer p + p { margin-block-start: 0.25rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
  .btn:hover { transform: none; }
}