/**
 * Davo Web — Shared Design System & Core Styles
 * Sistema unificado de variables, temas (light/dark), reset, navegación y componentes.
 */

:root {
  color-scheme: light;
  --bg: #FAFAFA;
  --surface: #F1F1F1;
  --surface-2: #E8E8E8;
  --border: #DEDEDE;
  --ink: #141414;
  --ink-soft: #666666;
  --ink-faint: #9A9A9A;
  --white: #FFFFFF;
  --overlay: rgba(10, 10, 10, 0.58);
  --radius: 6px;
  --max: 1120px;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101010;
  --surface: #171717;
  --surface-2: #222222;
  --border: #303030;
  --ink: #f2f2f0;
  --ink-soft: #aaaaaa;
  --ink-faint: #747474;
  --white: #151515;
  --overlay: rgba(0, 0, 0, 0.78);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: clip;
  max-width: 100vw;
  overflow-wrap: break-word;
  transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}

/* Grano screentone sutil nod a tramas */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background-image: radial-gradient(circle, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: .45;
}

html[data-theme="dark"] body::before {
  background-image: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

svg {
  display: block;
}

img {
  max-width: 100%;
  display: block;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

/* ---------- Botones ---------- */
button.btn {
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--white);
}

.btn-primary:hover {
  opacity: .9;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--white);
}

.btn:active {
  transform: scale(.97);
}

.btn-block {
  width: 100%;
}

/* ---------- Barra de navegación unificada ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, .92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: background-color .25s ease, border-color .25s ease;
}

html[data-theme="dark"] .nav {
  background: rgba(16, 16, 16, .92);
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 24px;
  display: inline-flex;
  align-items: center;
}

.web-chip {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
  margin-left: 8px;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a:not(.btn) {
  font-size: 14px;
  color: var(--ink-soft);
  transition: color .15s ease;
}

.nav-links a:not(.btn):hover {
  color: var(--ink);
}

.nav-links .btn {
  padding: 9px 18px;
  font-size: 13px;
  color: var(--white);
}

/* Selector de Modo Oscuro */
.theme-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--white);
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--ink);
  flex: 0 0 auto;
  transition: transform .2s ease, border-color .2s ease, background-color .2s ease, color .2s ease;
}

.theme-toggle:hover {
  border-color: var(--ink);
  transform: rotate(12deg);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
}

.theme-moon {
  display: none;
}

html[data-theme="dark"] .theme-sun {
  display: none;
}

html[data-theme="dark"] .theme-moon {
  display: block;
}

@media (max-width: 640px) {
  .theme-toggle {
    width: 40px;
    height: 40px;
  }
  .nav-links {
    gap: 10px;
  }
  .nav-links a:not(.btn) {
    display: none;
  }
}

/* Transiciones de tema */
body, .nav, .art-tile, .price-card, .modal-card, .option-chip, .modal-input, .modal-textarea,
.quote-dialog, .quote-option, .project-detail-showcase, .project-cta-banner, .device-desktop, .device-mobile {
  transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}

/* ---------- Pie de página unificado ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  margin-top: 80px;
  background: var(--surface);
  transition: background-color .25s ease, border-color .25s ease;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-fine {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-links a:hover {
  color: var(--ink);
}

/* ---------- Estilos de Detalle de Proyecto (proyecto.html) ---------- */
.project-detail-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.project-nav-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin-bottom: 24px;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: color .15s ease, border-color .15s ease, transform .15s ease;
}

.project-nav-back:hover {
  color: var(--ink);
  border-color: var(--ink);
  transform: translateX(-3px);
}

.project-header {
  margin-bottom: 36px;
}

.project-eyebrow-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.project-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--ink);
}

.project-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(44px, 7.5vw, 80px);
  margin: 0 0 16px;
  line-height: 1.05;
}

.project-subtitle {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 650px;
  line-height: 1.6;
  margin: 0;
}

.project-preview-wrap {
  margin: 36px 0 54px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 32px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

@media (max-width: 640px) {
  .project-preview-wrap {
    padding: 16px;
  }
}

.project-preview-wrap .project-preview {
  margin: 0 auto;
  border-radius: 6px;
  max-width: 960px;
}

/* Grid de información técnica */
.project-info-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  margin: 48px 0;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

@media (max-width: 780px) {
  .project-info-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.project-narrative h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 32px;
  margin: 0 0 16px;
  line-height: 1.2;
}

.project-narrative p {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 18px;
}

.project-specs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.spec-item {
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.spec-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.spec-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 4px;
}

.spec-value {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}

/* Paginación anterior / siguiente entre proyectos */
.project-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
  margin: 48px 0;
  gap: 20px;
}

.project-pagination-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: inherit;
  transition: transform .15s ease;
}

.project-pagination-link:hover {
  transform: translateY(-2px);
}

.project-pagination-link.next {
  text-align: right;
  margin-left: auto;
}

.pagination-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.pagination-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  color: var(--ink);
}

/* Banner de llamado a la acción */
.project-cta-banner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 44px 32px;
  text-align: center;
  margin: 48px 0 0;
}

.project-cta-banner h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 36px;
  margin: 0 0 12px;
  line-height: 1.15;
}

.project-cta-banner p {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

/* ---------- Case Study & Showcase Avanzado (Eramix Shop) ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 32px 0 48px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: transform .15s ease, border-color .15s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--ink);
}

.stat-number {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 38px;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: .06em;
  line-height: 1.4;
}

/* Comparativa Antes vs Después */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0 54px;
}

@media (max-width: 700px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

.comparison-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  background: var(--surface);
}

.comparison-card.bad {
  border-left: 4px solid #e05252;
}

.comparison-card.good {
  border-left: 4px solid #10b981;
}

.comparison-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.comparison-card.bad .comparison-title {
  color: #e05252;
}

.comparison-card.good .comparison-title {
  color: #10b981;
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparison-item {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  padding-left: 20px;
  position: relative;
}

.comparison-card.bad .comparison-item::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: #e05252;
  font-weight: 700;
}

.comparison-card.good .comparison-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: 700;
}

/* Galería Interactiva de Módulos (Tabs) */
.module-gallery {
  margin: 48px 0 64px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 32px;
}

@media (max-width: 640px) {
  .module-gallery {
    padding: 18px;
  }
}

.module-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.module-tab-btn {
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .15s ease;
}

.module-tab-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.module-tab-btn.active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  font-weight: 600;
}

.module-preview-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.module-img-frame {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.module-img-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.module-caption {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px 4px 0;
}

.module-caption-main h4 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 24px;
  margin: 0 0 6px;
}

.module-caption-main p {
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.6;
  margin: 0;
  max-width: 680px;
}

.module-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: .06em;
}