:root {
  /* Paleta do blog (PaperMod) — tema claro padrão. Mesmo bloco do trainer de Morse. */
  --theme: rgb(255, 255, 255);
  --entry: rgb(255, 255, 255);
  --primary: rgb(30, 30, 30);
  --secondary: rgb(108, 108, 108);
  --tertiary: rgb(214, 214, 214);
  --content: rgb(31, 31, 31);
  --code-bg: rgb(245, 245, 245);
  --border: rgb(238, 238, 238);

  --bg: var(--theme);
  --panel: var(--code-bg);
  --board: var(--entry);
  --text: var(--primary);
  --muted: var(--secondary);
  --on-accent: var(--theme);
  --ok: #2f7d32;
  --bad: #c0392b;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --theme: rgb(29, 30, 32);
    --entry: rgb(46, 46, 51);
    --primary: rgb(218, 218, 219);
    --secondary: rgb(155, 156, 157);
    --tertiary: rgb(65, 66, 68);
    --content: rgb(196, 196, 197);
    --code-bg: rgb(55, 56, 62);
    --border: rgb(51, 51, 51);
    --ok: #6fe06f;
    --bad: #ff6b6b;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100%;
}

a { color: inherit; }

.app-header {
  text-align: center;
  padding: 18px 12px 6px;
}

.app-header h1 {
  margin: 0;
  font-size: clamp(18px, 4vw, 28px);
  letter-spacing: 4px;
  font-weight: 700;
}

.app-header h1 span { color: var(--muted); }

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.layout {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 16px 24px;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Busca */
.busca-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

.field.grow { flex: 1 1 220px; }

.field input,
.field select {
  font: inherit;
  font-size: 20px;
  padding: 10px 12px;
  border: 1px solid var(--tertiary);
  border-radius: 8px;
  background: var(--board);
  color: var(--text);
  min-width: 0;
}

.field input:focus,
.field select:focus {
  outline: 2px solid var(--text);
  outline-offset: 1px;
}

.interpretacao {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  min-height: 1.3em;
}

.resultado { margin-top: 12px; }

.res-faixa {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.res-banda { font-size: 32px; font-weight: 700; line-height: 1; }
.res-nome { color: var(--muted); }

.res-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin: 14px 0 0;
}

.res-grid > div {
  background: var(--board);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.res-grid dt {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

.res-grid dd { margin: 6px 0 0; line-height: 1.5; }

.res-grid .wide { grid-column: 1 / -1; }

.chip {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--tertiary);
  margin: 2px 6px 2px 0;
  font-weight: 600;
  font-size: 14px;
}

.chip.is-ok {
  background: var(--ok);
  color: var(--on-accent);
  border-color: transparent;
}

.chip.is-no {
  color: var(--muted);
  text-decoration: line-through;
  opacity: 0.7;
}

.nota {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.res-vazio { color: var(--bad); margin: 0; }
.res-dica { color: var(--muted); margin: 6px 0 0; font-size: 14px; }

.link-btn {
  font: inherit;
  font-size: 14px;
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  text-decoration: underline;
  cursor: pointer;
}

/* Tabela completa */
.tabela-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tabela-header .panel-title { margin: 0; }

.ajuda {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.filtro {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filtro-btn {
  font: inherit;
  font-size: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--tertiary);
  background: var(--board);
  color: var(--text);
  cursor: pointer;
}

.filtro-btn.is-active {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}

.faixas { margin-top: 8px; }

details.faixa {
  border-top: 1px solid var(--tertiary);
  padding: 10px 0;
}

details.faixa[hidden] { display: none; }

details.faixa summary {
  cursor: pointer;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: baseline;
  list-style: none;
}

details.faixa summary::-webkit-details-marker { display: none; }

details.faixa summary::before {
  content: "▸";
  color: var(--muted);
  width: 1em;
}

details.faixa[open] summary::before { content: "▾"; }

.faixa-nome { font-weight: 700; font-size: 18px; min-width: 72px; }
.faixa-range { color: var(--muted); }
.faixa-classes { font-size: 13px; color: var(--muted); margin-left: auto; }

.faixa-corpo { padding: 8px 0 4px 1.3em; }

.faixa-corpo h3 {
  margin: 10px 0 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  background: var(--board);
  border-radius: 8px;
}

th, td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  vertical-align: top;
}

th { font-weight: 600; color: var(--muted); font-size: 12px; }

td.x { text-align: center; }
th.x { text-align: center; }
td.obs { white-space: normal; min-width: 220px; }

tr.is-off td { opacity: 0.4; }
tr.is-hit td { background: rgba(127, 127, 127, 0.15); }

.app-footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 12px 16px 24px;
  max-width: 960px;
  margin: 0 auto;
}

@media (max-width: 480px) {
  .res-banda { font-size: 26px; }
  .field input, .field select { font-size: 18px; }
}

/* ---- Específico do decodificador de indicativo ---- */
.field input.mono {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.res-call {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1;
  word-break: break-all;
}

.res-tipo {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--text);
  color: var(--bg);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.res-tipo.is-warn { background: var(--bad); color: #fff; }

.partes {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0 0;
}

.parte {
  background: var(--board);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  text-align: center;
}

.parte .valor {
  display: block;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 20px;
  font-weight: 700;
}

.parte .rotulo {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

.alerta {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-left: 4px solid var(--bad);
  background: var(--board);
  border-radius: 6px;
  font-size: 14px;
}

.notas { margin: 8px 0 0; padding-left: 18px; font-size: 14px; color: var(--muted); }
.notas li { margin: 4px 0; }

.fonetico {
  font-size: 18px;
  line-height: 1.6;
}

.exemplos { margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.exemplos button {
  font: inherit;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  background: var(--board);
  border: 1px solid var(--tertiary);
  border-radius: 6px;
  padding: 2px 8px;
  margin: 2px 4px 2px 0;
  color: var(--text);
  cursor: pointer;
}

@media (max-width: 480px) {
  .res-call { font-size: 26px; }
}