:root {
  --bg: #1b1d22;
  --bg-deep: #16171b;
  --panel: #24262d;
  --border: #34373f;
  --border-strong: #454852;
  --text: #f1efe9;
  --text-dim: #a7abb5;
  --text-faint: #6f7480;
  --accent: #d98a3d;
  --accent-strong: #eaa563;
  --accent-text: #241705;
  --good: #4fbf8b;
  --warn: #e0b23d;
  --bad: #d9694f;
  --font-display: 'Sora', sans-serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

button, input {
  font-family: inherit;
  color: inherit;
}

a { color: var(--accent); }
a:hover { color: var(--accent-strong); }

/* ---------- Topbar ---------- */

.topbar {
  border-bottom: 1px solid var(--border);
  background: #202226;
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { display: flex; color: var(--accent); }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text);
}

.topbar-user { display: flex; align-items: center; gap: 14px; }
.topbar-user[hidden] { display: none; }

.user-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  border: 1px solid var(--border-strong);
  padding: 5px 10px;
  border-radius: 6px;
}

.topbar-nav { display: flex; gap: 4px; }

.nav-link {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: color .15s, background .15s;
}
.nav-link:hover { color: var(--text); background: #2b2e34; }

.btn-ghost {
  background: none;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  font-size: 12.5px;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--accent); }

@media (max-width: 640px) {
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .topbar-user { flex-wrap: wrap; }
}

/* ---------- Stage / layout ---------- */

.stage {
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 32px 90px;
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.view { width: 100%; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
}

/* ---------- Typography ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

.title-display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 27px;
  line-height: 1.25;
  margin: 0 0 12px;
  color: var(--text);
}

.subtitle {
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.6;
  margin: 0 0 28px;
}

/* ---------- Login ---------- */

.login-panel { max-width: 460px; margin: 20px auto; }

.field { display: block; margin-bottom: 8px; }
.field-spaced { margin-top: 18px; }
.upload-panel .field { margin-bottom: 18px; }
.field-label {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
#inputNome, #inputSenha, #inputEmpresa, #inputContato, #inputProduto {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 13px 15px;
  font-size: 15.5px;
  color: var(--text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#inputNome:focus, #inputSenha:focus, #inputEmpresa:focus, #inputContato:focus, #inputProduto:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217,138,61,0.18);
}

.field-error {
  color: var(--bad);
  font-size: 13px;
  margin: 12px 0 4px;
  line-height: 1.5;
}

.btn-primary {
  margin-top: 20px;
  width: 100%;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 8px;
  padding: 14px 20px;
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, transform .1s, opacity .15s;
  font-family: var(--font-body);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-strong); }
.btn-primary:active:not(:disabled) { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- Upload ---------- */

.upload-panel { max-width: 560px; margin: 0 auto; }

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  border: 1.5px dashed var(--border-strong);
  border-radius: 10px;
  padding: 36px 20px;
  cursor: pointer;
  color: var(--text-dim);
  transition: border-color .15s, background .15s, color .15s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: rgba(217,138,61,0.06);
  color: var(--text);
}
.dropzone-icon { color: var(--accent); }
.dropzone-text { font-size: 14px; font-weight: 600; }
.dropzone-hint { font-size: 12px; color: var(--text-faint); }

#listaArquivos {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.arquivo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 12.5px;
}

.arquivo-item-ordem {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  background: rgba(94,200,216,0.12);
  border-radius: 3px;
  padding: 2px 7px;
  flex-shrink: 0;
}

.arquivo-item-nome {
  color: var(--text-dim);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.arquivo-item-remover {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 0 2px;
  flex-shrink: 0;
  transition: color .15s;
}
.arquivo-item-remover:hover { color: var(--bad); }

/* ---------- Histórico / Dashboard ---------- */

.historico-panel, .dashboard-panel { max-width: 720px; margin: 0 auto; }

.historico-lista {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.historico-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  text-align: left;
  width: 100%;
  font-family: inherit;
}
.historico-item:hover { border-color: var(--accent); background: rgba(217,138,61,0.06); }

.historico-item-nota {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  width: 34px;
  text-align: center;
  flex-shrink: 0;
}

.historico-item-info { flex: 1; min-width: 0; }
.historico-item-titulo {
  font-size: 13.5px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.historico-item-data {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 2px;
}

.historico-vazio {
  color: var(--text-faint);
  font-size: 13.5px;
  text-align: center;
  padding: 24px 0;
}

.section-subtitle {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text);
  margin: 28px 0 12px;
}

.evolucao-chart-wrap {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 4px;
}
.evolucao-chart { width: 100%; height: 120px; display: block; }

.evolucao-vazio {
  color: var(--text-faint);
  font-size: 13px;
  text-align: center;
  padding: 16px 0;
}

.evolucao-tabela-wrap { overflow-x: auto; margin-bottom: 8px; }
.evolucao-tabela {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  white-space: nowrap;
}
.evolucao-tabela th, .evolucao-tabela td {
  padding: 8px 10px;
  border-top: 1px solid var(--border);
  text-align: left;
  color: var(--text-dim);
}
.evolucao-tabela th {
  color: var(--text-faint);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-top: none;
}

.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.dashboard-table th, .dashboard-table td {
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  text-align: left;
  color: var(--text-dim);
}
.dashboard-table th {
  color: var(--text-faint);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  border-top: none;
}
.dashboard-table td:first-child { color: var(--text); }
.dashboard-table td:nth-child(2), .dashboard-table td:nth-child(3) { font-family: var(--font-mono); }

/* ---------- Processing ---------- */

.processing-panel {
  max-width: 400px;
  margin: 60px auto;
  text-align: center;
  padding: 48px 32px;
}
.gauge-loader { display: flex; justify-content: center; margin-bottom: 26px; color: var(--accent); }
.gauge-loader svg { animation: spin 1.3s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.processing-step {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
  margin: 0 0 8px;
}
.processing-hint { font-size: 12.5px; color: var(--text-faint); margin: 0; }

@media (prefers-reduced-motion: reduce) {
  .gauge-loader svg { animation: none; }
}

/* ---------- Resultado ---------- */

.result-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 22px;
  align-items: start;
}

@media (max-width: 800px) {
  .result-grid { grid-template-columns: 1fr; }
}

.score-panel { text-align: center; }
.gauge-svg { margin: 0 0 2px; }
.score-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 34px;
  fill: var(--text);
}
#scoreArc { transition: stroke-dashoffset 1s ease; }
.score-caption {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 8px 0 22px;
}

.score-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}
.score-table td {
  padding: 8px 0;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
}
.score-table td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  color: var(--text);
}

.feedback-panel { min-height: 420px; }

.panel-tabs {
  display: flex;
  gap: 20px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 2px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.tab-btn.active { color: var(--accent); border-color: var(--accent); }

.tab-content { font-size: 14px; line-height: 1.7; color: var(--text); }
.tab-content h2 { font-family: var(--font-display); font-size: 16px; margin: 24px 0 10px; color: var(--text); }
.tab-content h2:first-child { margin-top: 0; }
.tab-content h3 { font-size: 14.5px; margin: 18px 0 8px; color: var(--accent); }
.tab-content p { margin: 0 0 10px; color: var(--text-dim); }
.tab-content strong { color: var(--text); }
.tab-content ul { margin: 0 0 14px; padding-left: 20px; color: var(--text-dim); }
.tab-content li { margin-bottom: 8px; }
.tab-content table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; }
.tab-content th, .tab-content td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.tab-content th { color: var(--text-dim); font-weight: 500; }
.tab-content blockquote {
  margin: 10px 0;
  padding: 14px 16px;
  border-left: 2px solid var(--accent);
  background: var(--bg-deep);
  color: var(--text-dim);
  font-size: 13.5px;
  border-radius: 0 8px 8px 0;
}

.btn-copy { margin-bottom: 18px; }

.btn-nova {
  max-width: 320px;
  margin: 28px auto 0;
  display: block;
}

.score-good { color: var(--good); }
.score-warn { color: var(--warn); }
.score-bad { color: var(--bad); }