/* ============================================================
   Banco de Prompts — engine styles
   :root ............ tokens neutros compartilhados (base de qualquer tema)
   [data-theme="davstudy"] .. identidade dav_study (NÃO vaza p/ fm)
   [data-theme="fm"] ........ navy do escritório (Task 6 amplia)
   Só os VALORES dos tokens e regras scoped mudam entre temas;
   os seletores/classes são estáveis (app.js depende deles).
   ============================================================ */

:root {
  /* paleta neutra — fallback; cada tema sobrescreve o que precisa */
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --accent: #3b3bd6;
  --accent-ink: #ffffff;          /* texto sobre --accent */
  --card: #f6f6f8;
  --surface: #ffffff;             /* inputs, botões 2ª, preview */
  --borda: #e0e0e6;

  /* estrutura — agnóstica de marca (serve os dois temas) */
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-marca: var(--font);      /* davstudy troca por um display */
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --preview-font: var(--font);    /* davstudy usa monoespaçada */
  --preview-bg: var(--surface);   /* davstudy tinge de leve */
  --r-sm: .6rem;
  --r-md: .85rem;
  --r-pill: 999px;
  --sombra: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .05);
  --sombra-alta: 0 14px 34px -14px rgba(16, 24, 40, .28);
  --toque: 44px;                  /* alvo de toque mínimo */
}

/* dav_study — identidade "grifo": teal de ação + realce lime + tinta teal-escura */
[data-theme="davstudy"] {
  --bg: #f2fafa;
  --fg: #102a2f;
  --muted: #466169;
  --accent: #0b6b73;
  --accent-ink: #ffffff;
  --card: #ffffff;
  --surface: #ffffff;
  --borda: #d3e6e6;
  --grifo: #d3f24d;               /* realce (highlighter) — só p/ dav_study */
  --font-marca: "Bricolage Grotesque", var(--font);
  --preview-font: var(--mono);    /* preview vira "bloco de prompt" */
  --preview-bg: color-mix(in srgb, var(--accent) 5%, #ffffff);
  --marca-grifo: linear-gradient(  /* traço de highlighter sob o wordmark */
    transparent 58%, var(--grifo) 58%, var(--grifo) 90%, transparent 90%);
  --marca-pad: .1em;
}

/* escritório — navy sóbrio (Task 6): casca do Portal F&M */
[data-theme="fm"] {
  --bg: #f5f7fa;
  --fg: #16232e;
  --muted: #55636e;
  --accent: #1F3B5B;
  --accent-ink: #ffffff;
  --card: #ffffff;
  --surface: #ffffff;
  --borda: #d7dee5;
  --font-marca: Georgia, "Times New Roman", serif;
  --preview-bg: color-mix(in srgb, var(--accent) 5%, #ffffff);
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0 auto;
  max-width: 720px;
  padding: 1.25rem 1.1rem 2rem;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:where(a, button, summary):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ---------- topo ---------- */
.topo {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1rem;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: .5rem;
}
.topo > div { min-width: 0; }
.topo h1 {
  margin: 0;
  display: inline-block;
  font-family: var(--font-marca);
  font-weight: 800;
  letter-spacing: -.03em;
  font-size: clamp(1.7rem, 4vw + 1rem, 2.2rem);
  line-height: 1.08;
  padding-inline: var(--marca-pad, 0);
  background-image: var(--marca-grifo, none);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.topo p {
  margin: .3rem 0 0;
  color: var(--muted);
  font-size: .95rem;
}
#busca {
  flex: 1 1 14rem;
  max-width: 22rem;
  min-height: var(--toque);
  padding: .5rem .95rem;
  font: inherit;
  font-size: 1rem;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--borda);
  border-radius: var(--r-pill);
  transition: border-color .15s, box-shadow .15s;
}
#busca:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

/* ---------- aviso (usado pelo tema fm) ---------- */
#aviso {
  margin: 0 0 1rem;
  background: #fff6e0;
  border: 1px solid #e6d9a8;
  color: #6b5300;
  padding: .6rem .85rem;
  border-radius: var(--r-sm);
  font-size: .9rem;
}

/* ---------- categorias (chips) ---------- */
#categorias {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.1rem 0 1.4rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  min-height: var(--toque);
  padding: 0 1rem;
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--borda);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background .16s, color .16s, border-color .16s;
}
.chip:hover { border-color: var(--accent); }
.chip.ativo {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

/* ---------- cards (protocolos) ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: var(--r-md);
  margin-bottom: .7rem;
  padding: 0 .95rem;
  box-shadow: var(--sombra);
  transition: box-shadow .18s, border-color .18s;
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 28%, var(--borda)); }
.card[open] {
  box-shadow: var(--sombra-alta);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--borda));
}
.card summary {
  position: relative;
  display: block;
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.7rem 1rem 0;
}
.card summary::-webkit-details-marker { display: none; }
.card summary::after {
  content: "";
  position: absolute;
  right: .25rem;
  top: 1.4rem;
  width: .5rem;
  height: .5rem;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .2s;
}
.card[open] summary::after { transform: rotate(-135deg); }
.card summary h2 {
  display: block;
  margin: .15rem 0 0;
  font-family: var(--font-marca);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -.01em;
  line-height: 1.25;
}
.card .cat {
  display: inline-block;
  margin: 0;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent);
}
.card summary p {
  margin: .3rem 0 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.45;
}

/* corpo aberto */
.corpo {
  padding: .25rem 0 1rem;
  margin-top: .1rem;
  border-top: 1px solid var(--borda);
}
.quando {
  margin: .8rem 0;
  font-size: .9rem;
  color: var(--muted);
  line-height: 1.5;
}
.quando strong { color: var(--fg); }

/* ---------- formulário ---------- */
.campos {
  display: grid;
  gap: .8rem;
  margin: .5rem 0 1rem;
}
.campos label {
  display: grid;
  gap: .3rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--fg);
}
.campos input,
.campos textarea,
.campos select {
  min-height: var(--toque);
  padding: .6rem .7rem;
  font: inherit;
  font-size: 1rem;              /* 16px: evita zoom no iOS */
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--borda);
  border-radius: var(--r-sm);
  transition: border-color .15s, box-shadow .15s;
}
.campos textarea {
  min-height: 5.5rem;
  line-height: 1.5;
  resize: vertical;
}
.campos input:focus,
.campos textarea:focus,
.campos select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.campos ::placeholder { color: var(--muted); opacity: 1; }

/* ---------- ações ---------- */
.acoes {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: .25rem;
}
.acoes button {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  min-height: var(--toque);
  padding: 0 1.1rem;
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--borda);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
}
.acoes button:hover { border-color: var(--accent); }
.acoes button:active { transform: translateY(1px); }
.acoes .copiar {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.acoes .copiar:hover {
  background: color-mix(in srgb, var(--accent) 88%, #000);
  border-color: transparent;
}

/* ---------- preview (prompt pronto p/ copiar) ---------- */
.preview {
  margin-top: .85rem;
  padding: .85rem .95rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;       /* sem scroll horizontal a 375 */
  font-family: var(--preview-font);
  font-size: .95rem;
  line-height: 1.55;
  color: var(--fg);
  background: var(--preview-bg);
  border: 1px solid var(--borda);
  border-radius: var(--r-md);
}
.preview.incompleto {
  border-style: dashed;
  border-color: color-mix(in srgb, #d09000 55%, var(--borda));
  background: color-mix(in srgb, #d09000 6%, var(--surface));
}

/* ---------- erros comuns ---------- */
.erros {
  margin: 1.1rem 0 .25rem;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: .85rem;
  line-height: 1.5;
}
.erros:empty { display: none; }
.erros::before {
  content: "Erros comuns";
  display: block;
  margin: 0 0 .35rem -1.1rem;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--fg);
}
.erros li { margin: .3rem 0; }

/* estado vazio / erro de carregamento */
.vazio {
  text-align: center;
  color: var(--muted);
  padding: 2.5rem 1rem;
  font-size: .95rem;
}

/* ---------- rodapé ---------- */
footer {
  margin: 2.5rem 0 1rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--borda);
  color: var(--muted);
  font-size: .9rem;
}
footer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}
footer a:hover { text-decoration: underline; }

/* ---------- motion reduzido ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}