/* public/styles.css — Dirección de Arte Senior para lapiz.cl
 * Taller de colorimetría, papel acuarela prensado en frío (#FAF7F2), grafito suave (#D8D2C7),
 * tipografía editorial clásica y contraste WCAG AAA.
 */

:root {
  --bg-canvas: #FAF7F2;
  --bg-card: #FFFFFF;
  --bg-inset: #F4EFEB;
  --text-main: #1C1B18;
  --text-muted: #524F49;
  --border-graphite: #D8D2C7;
  --border-subtle: #E8E2D8;

  --accent-ultramarine: #1E40AF;
  --accent-vermilion: #DC2626;
  --accent-cadmium: #D97706;
  --accent-viridian: #047857;

  --font-serif: "Charter", "Bitstream Charter", "Sitka Text", "Cambria", "Georgia", serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", "Consolas", monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --header-h: 60px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  background-color: var(--bg-canvas);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Enlace accesible para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 8px 16px;
  margin: 0;
  clip: auto;
  white-space: normal;
  background: var(--text-main);
  color: #FFFFFF;
  z-index: 1000;
}

/* Cabecera compacta: poco aire arriba */
.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-graphite);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 16px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: conic-gradient(from 0deg, #E52421, #FFD900, #1C9D4B, #1A53A0, #772B84, #E52421);
  border: 2px solid #1C1B18;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  background: var(--bg-inset);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-graphite);
}

.site-nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  padding: 4px 0;
}
.site-nav::-webkit-scrollbar {
  display: none;
}
.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: all 0.15s ease;
}
.nav-link:hover {
  color: var(--text-main);
  background: var(--bg-inset);
}
.nav-link.active {
  color: var(--accent-ultramarine);
  font-weight: 700;
  background: #EFF6FF;
}

/* Contenido Principal con poco aire arriba (<= 32px escritorio, <= 24px móvil) */
main {
  flex: 1;
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 16px 16px 40px;
}
@media (min-width: 768px) {
  main {
    padding: 20px 24px 48px;
  }
}

/* Título de Página */
.page-intro {
  margin-bottom: 16px;
}
.page-title {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 6px;
}
@media (min-width: 768px) {
  .page-title {
    font-size: 2.1rem;
  }
}
.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 780px;
  line-height: 1.45;
}

/* Grilla del Estudio / Panel Superior (Visible sin scroll a 1208x570 y 1536x700) */
.studio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
@media (min-width: 900px) {
  .studio-grid {
    grid-template-columns: 340px 1fr;
    align-items: start;
  }
}
@media (min-width: 1100px) {
  .studio-grid {
    grid-template-columns: 380px 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
}
.card-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  color: var(--text-muted);
  border: 1px solid var(--border-graphite);
}

/* Círculo Cromático Interactivo */
.wheel-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.wheel-svg {
  width: 100%;
  max-width: 320px;
  height: auto;
  aspect-ratio: 1 / 1;
}
.wheel-sector {
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.12s ease;
  transform-origin: center;
}
.wheel-sector:hover, .wheel-sector:focus {
  filter: brightness(1.1) drop-shadow(0 2px 4px rgba(0,0,0,0.2));
  transform: scale(1.02);
  outline: none;
}
.wheel-sector.active {
  stroke: #1C1B18 !important;
  stroke-width: 3.5px !important;
  filter: drop-shadow(0 0 6px rgba(0,0,0,0.3));
}

.swatch-display {
  width: 100%;
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-graphite);
  display: flex;
  align-items: center;
  gap: 12px;
}
.swatch-chip {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  border: 2px solid #1C1B18;
  flex-shrink: 0;
}
.swatch-info {
  flex: 1;
  min-width: 0;
}
.swatch-name {
  font-weight: 700;
  font-size: 1rem;
}
.swatch-codes {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}
.btn-copy {
  background: #FFFFFF;
  border: 1px solid var(--border-graphite);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
}
.btn-copy:hover {
  background: var(--bg-inset);
  border-color: #1C1B18;
}

/* Mezclador Dual */
.mixer-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.input-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}
.color-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.color-picker {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: none;
  padding: 0;
}
.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}
.color-picker::-webkit-color-swatch {
  border: none;
  border-radius: 3px;
}
.text-input {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: 6px 10px;
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  color: var(--text-main);
  width: 100%;
}
.text-input:focus {
  outline: 2px solid var(--accent-ultramarine);
  border-color: var(--accent-ultramarine);
}

.slider-container {
  margin: 10px 0 16px;
}
.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}
.range-slider {
  width: 100%;
  accent-color: var(--accent-ultramarine);
  cursor: pointer;
  height: 6px;
}

.dual-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 600px) {
  .dual-results {
    grid-template-columns: 1fr 1fr;
  }
}

.result-box {
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-graphite);
  background: var(--bg-inset);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.result-header {
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.result-chip-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.result-chip {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid #000000;
  flex-shrink: 0;
}
.result-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.35;
}
.result-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Fila de Armonías */
.harmony-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.harmony-chip {
  flex: 1 1 80px;
  min-width: 70px;
  padding: 8px;
  background: #FFFFFF;
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-sm);
  text-align: center;
  cursor: pointer;
  transition: transform 0.1s ease;
}
.harmony-chip:hover {
  transform: translateY(-2px);
  border-color: #1C1B18;
}
.harmony-color {
  height: 28px;
  border-radius: 2px;
  border: 1px solid rgba(0,0,0,0.15);
  margin-bottom: 4px;
}
.harmony-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
}
.harmony-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Verificador de Contraste WCAG */
.contrast-box {
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-graphite);
  margin-top: 12px;
}
.contrast-score {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.contrast-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.badge-pass {
  background: #DCFCE7;
  color: #14532D;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.badge-fail {
  background: #FEE2E2;
  color: #7F1D1D;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* Sección de Contenido Editorial y Tablas */
.editorial-content {
  margin-top: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-md);
  padding: 24px;
}
.editorial-content h2 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  margin: 20px 0 10px;
  color: var(--text-main);
}
.editorial-content h2:first-of-type {
  margin-top: 0;
}
.editorial-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 16px 0 8px;
}
.editorial-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 14px;
}
.editorial-content ul, .editorial-content ol {
  margin-left: 20px;
  margin-bottom: 14px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}
.editorial-content li {
  margin-bottom: 6px;
}

/* Tablas Responsivas sin desborde */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 16px 0;
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-sm);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
  background: #FFFFFF;
}
.data-table th, .data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}
.data-table th {
  background: var(--bg-inset);
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.data-table tr:last-child td {
  border-bottom: none;
}
.data-table tr:hover td {
  background: #FCFBF9;
}

/* Fichas de Láminas Imprimibles */
.laminas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 16px 0;
}
@media (min-width: 680px) {
  .laminas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .laminas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.lamina-card {
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  padding: 14px;
  display: flex;
  flex-direction: column;
}
.lamina-preview {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  margin-bottom: 10px;
}
.lamina-preview svg {
  max-width: 100%;
  max-height: 100%;
}
.lamina-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.lamina-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 12px;
}
.lamina-actions {
  display: flex;
  gap: 8px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #1C1B18;
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid #1C1B18;
  cursor: pointer;
  flex: 1;
  text-align: center;
}
.btn-primary:hover {
  background: #333333;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid var(--border-graphite);
  cursor: pointer;
}
.btn-secondary:hover {
  background: var(--bg-inset);
  border-color: #1C1B18;
}

/* Formulario de Contacto Turnstile v2 */
.contact-form {
  max-width: 600px;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.form-field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}
.form-field input, .form-field textarea {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  padding: 8px 12px;
  border: 1px solid var(--border-graphite);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  color: var(--text-main);
}
.form-field textarea {
  min-height: 100px;
  resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
  outline: 2px solid var(--accent-ultramarine);
  border-color: var(--accent-ultramarine);
}
.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.form-status {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  display: none;
}
.form-status.success {
  display: block;
  background: #DCFCE7;
  color: #14532D;
  border: 1px solid #86EFAC;
}
.form-status.error {
  display: block;
  background: #FEE2E2;
  color: #7F1D1D;
  border: 1px solid #FCA5A5;
}

/* Pie de Página */
.site-footer {
  background: #FAF7F2;
  border-top: 1px solid var(--border-graphite);
  padding: 24px 16px;
  margin-top: auto;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--text-main);
  text-decoration: underline;
}

/* Reglas de Impresión para Láminas */
@media print {
  .site-header, .site-footer, .mixer-card, .slider-container, .btn-copy, .lamina-actions, .site-nav {
    display: none !important;
  }
  body, main {
    background: #FFFFFF !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .card, .editorial-content {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }
}