/* Tipografia variável local (SIL Open Font License 1.1). */
@font-face {
  font-family: 'CorteLimpo Sans';
  font-weight: 400 800;
  font-display: swap;
  src: url('fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'CorteLimpo Sans';
  font-weight: 400 800;
  font-display: swap;
  src: url('fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-canvas: #0f172a;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #475569;
  --border-color: #cbd5e1;
  --border-strong: #94a3b8;
  --accent: #0f766e;
  --accent-hover: #115e59;
  --accent-text: #ffffff;
  --accent-soft: #ccfbf1;
  --accent-soft-text: #115e59;
  --danger: #b91c1c;
  --danger-bg: #fee2e2;
  --warning: #92400e;
  --warning-bg: #fef3c7;
  --ok: #166534;
  --ok-bg: #dcfce7;
  --focus-ring: #0f766e;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg-page: #0b1120;
  --bg-surface: #111827;
  --bg-subtle: #1e293b;
  --bg-canvas: #090d16;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --border-strong: #475569;
  --accent: #14b8a6;
  --accent-hover: #2dd4bf;
  --accent-text: #042f2e;
  --accent-soft: #134e4a;
  --accent-soft-text: #ccfbf1;
  --danger: #fca5a5;
  --danger-bg: #450a0a;
  --warning: #fcd34d;
  --warning-bg: #451a03;
  --ok: #86efac;
  --ok-bg: #052e16;
  --focus-ring: #2dd4bf;
}

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

html {
  font-family: 'CorteLimpo Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  background-color: var(--bg-page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Hierarquia tipográfica com degraus >= 1.25x: 16px -> 20px -> 25px -> 32px */
h1, h2, h3 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.75rem, 2.5vw, 2.125rem);
  margin: 0 0 0.75rem 0;
}

h2 {
  font-size: 1.5625rem;
  margin: 2.25rem 0 0.75rem 0;
}

h3 {
  font-size: 1.25rem;
  margin: 1.5rem 0 0.5rem 0;
}

p {
  margin: 0 0 1rem 0;
  max-width: 54ch;
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Cabeçalho */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 30;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  text-decoration: none;
}

.brand svg {
  flex-shrink: 0;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  padding: 0.625rem 1.125rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-text);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
}

.btn-sm {
  font-size: 0.875rem;
  padding: 0.4375rem 0.75rem;
}

/* Hero enxuto e direto */
.hero-section {
  padding: 2.5rem 0 1.75rem 0;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-surface);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 2.5rem;
  }
}

.hero-lead {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero-summary-list {
  margin: 0;
  padding: 0 0 0 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.hero-summary-list li {
  margin-bottom: 0.5rem;
}

/* Área principal da ferramenta */
.workspace-section {
  padding: 2rem 0 3rem 0;
}

.mode-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.tab-btn {
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
}

.tab-btn[aria-selected="true"] {
  background-color: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

@media (min-width: 1024px) {
  .workspace-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-bottom: 0.875rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.panel-header h2, .panel-header h3 {
  margin: 0;
}

/* Upload e exemplos */
.upload-zone {
  border: 2px dashed var(--border-strong);
  border-radius: 8px;
  padding: 1.25rem;
  text-align: center;
  background-color: var(--bg-subtle);
  margin-bottom: 1rem;
}

.upload-zone.drag-over {
  border-color: var(--accent);
  background-color: var(--accent-soft);
}

.sample-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Canvas CAD 2D */
.canvas-wrapper {
  position: relative;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  height: 300px;
  margin-bottom: 0.875rem;
}

#cadCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  user-select: none;
}

#cadCanvas:active {
  cursor: grabbing;
}

.canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.legend-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
}

/* Tabelas e métricas numéricas */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  padding: 0.875rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 640px) {
  .metrics-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-item {
  min-width: 0;
}

.metric-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.125rem;
}

.metric-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

/* Diagnóstico */
.diag-list {
  list-style: none;
  margin: 0 0 1rem 0;
  padding: 0;
  font-size: 0.875rem;
}

.diag-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
  font-variant-numeric: tabular-nums;
}

.diag-item.status-ok {
  background-color: var(--ok-bg);
  color: var(--ok);
}

.diag-item.status-warn {
  background-color: var(--warning-bg);
  color: var(--warning);
}

.diag-item.status-err {
  background-color: var(--danger-bg);
  color: var(--danger);
}

/* Formulários */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  margin-bottom: 1rem;
}

@media (min-width: 540px) {
  .form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.field input,
.field select {
  font-family: inherit;
  font-size: 0.9375rem;
  padding: 0.5rem 0.625rem;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Resumo de orçamento */
.quote-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
  margin-bottom: 1rem;
}

.quote-table th,
.quote-table td {
  padding: 0.5rem 0.25rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.quote-table td:last-child,
.quote-table th:last-child {
  text-align: right;
}

.quote-total-row th,
.quote-total-row td {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  border-top: 2px solid var(--border-strong);
  border-bottom: none;
  padding-top: 0.75rem;
}

/* Seções informativas e planos */
.info-section {
  padding: 2.75rem 0;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
}

.pricing-section {
  padding: 3.25rem 0;
  border-top: 1px solid var(--border-color);
}

.feature-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

@media (min-width: 768px) {
  .feature-grid,
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-block,
.price-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.price-block.featured {
  border: 2px solid var(--accent);
}

.price-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  margin: 0.5rem 0;
}

.price-period {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.clean-list {
  padding-left: 1.125rem;
  margin: 0.5rem 0 1.25rem 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.clean-list li {
  margin-bottom: 0.375rem;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
  overscroll-behavior: contain;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  max-width: 520px;
  width: 100%;
  padding: 1.5rem;
  max-height: 90vh;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.site-footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  padding: 2rem 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media print {
  .site-header, .hero-section, .mode-tabs, .upload-zone, .sample-bar, .info-section, .pricing-section, .site-footer, .no-print {
    display: none !important;
  }
  .workspace-grid {
    grid-template-columns: 1fr !important;
  }
  .panel {
    border: 1px solid #000 !important;
  }
}