/* ============================================================
   Sistema de diseño — Gastón Machado, Escribano Público
   Papel + tinta + carmín de sello. Segunda capa de dirección
   de arte: ritmo entre secciones, hoja de protocolo en el hero,
   bloques oscuros controlados y acentos editoriales en carmín.
   ============================================================ */

:root {
  --paper: #F5F3EE;
  --paper-2: #EDE9DF;
  --paper-white: #FBFAF5;
  --card: #FFFEFA;
  --ink: #14212C;
  --ink-70: rgba(20, 33, 44, 0.7);
  --ink-50: rgba(20, 33, 44, 0.5);
  --oxblood: #7A2A2A;
  --oxblood-dark: #5E1F1F;
  --oxblood-soft: #C08A8A;
  --stone: #6B675E;
  --hairline: #DDD7C9;
}

* { -webkit-font-smoothing: antialiased; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
}

.font-display { font-family: 'Newsreader', serif; }
.font-mono { font-family: 'IBM Plex Mono', monospace; }

/* Grano de papel sutil en toda la página */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.3;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}
body > * { position: relative; z-index: 1; }

/* Selección de texto en carmín */
::selection { background: var(--oxblood); color: var(--paper); }

/* Marca de folio — la numeración marginal del protocolo */
.folio {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--oxblood);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: uppercase;
}
.folio::before {
  content: '';
  width: 1.5rem;
  height: 1px;
  background: var(--oxblood);
  display: inline-block;
}

.hairline { border-color: var(--hairline); }

/* Fondo blanco cálido para variar el ritmo entre secciones */
.paperwhite { background-color: var(--paper-white); }

/* ============================================================
   Bloque oscuro controlado — tinta sobre papel invertido.
   Se aplica como clase de sección; los colores internos se
   resuelven acá para no tocar el contenido.
   ============================================================ */
.section-ink {
  background-color: var(--ink);
  color: var(--paper);
}
.section-ink h2 { color: var(--paper); }
.section-ink .text-ink { color: var(--paper) !important; }
.section-ink .text-stone { color: rgba(245, 243, 238, 0.62) !important; }
.section-ink .text-oxblood { color: var(--oxblood-soft) !important; }
.section-ink .folio { color: var(--oxblood-soft); }
.section-ink .folio::before { background: var(--oxblood-soft); }
.section-ink .border-hairline { border-color: rgba(245, 243, 238, 0.14) !important; }
.section-ink img { border: 1px solid rgba(245, 243, 238, 0.18); }
.section-ink a { color: rgba(245, 243, 238, 0.72); }
.section-ink a:hover { color: var(--paper) !important; }

/* ============================================================
   Hero — margen de protocolo: la doble línea vertical del
   papel notarial, apenas insinuada en el borde izquierdo.
   Misma familia visual que el folio "N.º 00". Nada más.
   ============================================================ */
.hero-deco { position: relative; }
.hero-deco > * { position: relative; z-index: 1; }
.hero-deco::before {
  content: '';
  position: absolute;
  z-index: 0;
  top: 6rem;
  bottom: 3rem;
  left: 2.25rem;
  width: 7px;
  pointer-events: none;
  border-left: 1px solid rgba(122, 42, 42, 0.28);
  border-right: 1px solid rgba(122, 42, 42, 0.18);
}
@media (max-width: 1023px) {
  .hero-deco::before { display: none; }
}

/* ============================================================
   Botones
   ============================================================ */
.btn-primary {
  background-color: var(--ink);
  color: var(--paper);
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1rem 2rem;
  border-radius: 2px;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background-color: var(--oxblood-dark);
  box-shadow: 0 10px 24px -14px rgba(94, 31, 31, 0.55);
}
.btn-primary:active { transform: scale(0.99); }

.btn-outline {
  border: 1px solid var(--ink);
  color: var(--ink);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1rem 2rem;
  border-radius: 2px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-outline:hover { background-color: var(--ink); color: var(--paper); }

/* ============================================================
   Tarjetas de bifurcación (home) — más presencia: fondo cálido,
   línea de sello superior que crece al pasar el mouse, leve
   elevación.
   ============================================================ */
.branch-card {
  position: relative;
  overflow: hidden;
  background-color: var(--card);
  border: 1px solid var(--hairline);
  box-shadow: 0 1px 0 rgba(20, 33, 44, 0.04);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.branch-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 2.5rem;
  background: var(--oxblood);
  transition: width 0.35s ease;
}
.branch-card:hover {
  border-color: var(--oxblood);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px -20px rgba(20, 33, 44, 0.3);
}
.branch-card:hover::before { width: 100%; }
.branch-card:hover .branch-arrow { transform: translateX(6px); }
.branch-arrow { transition: transform 0.25s ease; }

/* Foco visible de teclado, accesible */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--oxblood);
  outline-offset: 3px;
}

/* Reveal suave al hacer scroll */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .branch-card:hover { transform: none; }
}

.whatsapp-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 50;
  background-color: #1E8A5A;
  color: white;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(20, 33, 44, 0.25);
  transition: transform 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.06); }

img.grain { filter: saturate(0.96) contrast(1.02); }

/* Retratos con montaje editorial: borde fino y hoja de papel
   asomando detrás, como foto montada sobre el expediente */
.foto-marco {
  border: 1px solid var(--hairline);
  box-shadow:
    16px 16px 0 -1px var(--paper-2),
    16px 16px 0 0 var(--hairline);
}

/* ---- Acordeón (FAQ) ---- */
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.accordion-chevron { transition: transform 0.25s ease, color 0.2s ease; }
[data-accordion-item].is-open .accordion-chevron { transform: rotate(45deg); }
[data-accordion-item] { border-bottom: 1px solid var(--hairline); }
[data-accordion-item]:first-child { border-top: 1px solid var(--hairline); }
[data-accordion-trigger] span { transition: color 0.2s ease; }
[data-accordion-trigger]:hover span { color: var(--oxblood); }
[data-accordion-item].is-open [data-accordion-trigger] span { color: var(--oxblood); }

/* ---- Selector de recorridos / situaciones ---- */
[data-path-trigger] {
  border: 1px solid var(--hairline);
  background-color: var(--card);
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}
[data-path-trigger]:not(.is-active):hover {
  border-color: var(--oxblood);
  color: var(--oxblood);
}
[data-path-trigger].is-active {
  border-color: var(--ink);
  background-color: var(--ink);
  color: var(--paper);
}
[data-path-panel] {
  animation: fadeIn 0.3s ease;
  border-left: 2px solid var(--oxblood);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  [data-path-panel] { animation: none; }
}

/* ---- Tarjeta de situación frecuente ---- */
.situation-card {
  background-color: var(--card);
  border: 1px solid var(--hairline);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.situation-card:hover {
  border-color: var(--oxblood);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -18px rgba(20, 33, 44, 0.3);
}
@media (prefers-reduced-motion: reduce) {
  .situation-card:hover { transform: none; }
}

/* ---- Chips de servicio secundario ---- */
.service-chip {
  background-color: var(--card);
  border: 1px solid var(--hairline);
  transition: border-color 0.2s ease;
}
.service-chip:hover { border-color: var(--oxblood); }

/* ---- Reseñas: tratamiento editorial con comilla de imprenta ---- */
.resena {
  position: relative;
  border-left: 1px solid var(--hairline);
  padding-left: 1.75rem;
}
.resena::before {
  content: '\201C';
  position: absolute;
  top: -2.1rem;
  left: 1.4rem;
  font-family: 'Newsreader', serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--oxblood);
  opacity: 0.16;
  pointer-events: none;
}