/* Manual de finales de Dvoretsky — hoja de estilo única */

/* ---------- Tokens ---------- */
/* El tema oscuro es la base; el claro se aplica con [data-theme="light"]. */
:root {
  color-scheme: dark;

  --bg:            #100F0D;
  --bg-2:          #16150F;
  --surface:       #1B1914;
  --surface-2:     #221F19;
  --surface-soft:  rgba(255,255,255,.015);
  --surface-soft-h: rgba(201,162,92,.035);
  --line:          #2E2A22;
  --line-soft:     #26231D;

  --ink:           #F2ECE0;
  --ink-2:         #C8BFAE;
  --ink-3:         #8E8677;

  --gold:          #C9A25C;
  --gold-bright:   #E7C77F;
  --gold-deep:     #8A6C33;

  --gilt-1:        #E4C078;
  --gilt-2:        #F3E0AF;
  --gilt-3:        #C9A25C;

  --btn-gold-a:    #E7C77F;
  --btn-gold-b:    #C9A25C;
  --btn-gold-ink:  #17140E;
  --btn-gold-glow: rgba(201,162,92,.85);
  --btn-gold-glow-h: rgba(201,162,92,.95);
  --ghost-bg:      rgba(255,255,255,.02);

  --header-bg:     rgba(16,15,13,.72);
  --header-bg-stuck: rgba(16,15,13,.92);

  --accent-bd:     rgba(201,162,92,.45);
  --tag-bd:        rgba(201,162,92,.40);
  --tag-bg:        rgba(201,162,92,.10);
  --feature-bd:    rgba(201,162,92,.35);

  --grain-op:      .28;
  --grid-ink:      rgba(255,255,255,.5);
  --grid-op:       .022;
  --glow-gold:     rgba(201,162,92,.16);
  --glow-green:    rgba(120,150,120,.10);
  --closing-glow:  rgba(201,162,92,.16);

  --board-shadow:  rgba(0,0,0,.6);
  --board-frame:   rgba(201,162,92,.35);
  --coord:         #6F6858;
  --spine:         rgba(255,255,255,.08);
  --cover-edge:    rgba(0,0,0,.5);

  --sq-light:      #FFFFFF;
  --sq-dark:       #BBBBBB;
  --sq-frame:      #111111;
  --pc-w:          #FFFFFF;
  --pc-b:          #000000;
  --reti:          #8A6C33;

  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --wrap: 1180px;
  --r-s: 8px;
  --r-m: 14px;
  --r-l: 22px;

  --shadow-s: 0 2px 8px rgba(0,0,0,.35);
  --shadow-m: 0 18px 40px -18px rgba(0,0,0,.75);
  --shadow-l: 0 40px 80px -30px rgba(0,0,0,.85);
}

/* ---------- Tema claro ---------- */
:root[data-theme="light"] {
  color-scheme: light;

  --bg:            #FAF6EC;
  --bg-2:          #F2EBDC;
  --surface:       #FFFCF5;
  --surface-2:     #F6F0E3;
  --surface-soft:  rgba(255,255,255,.55);
  --surface-soft-h: rgba(201,162,92,.08);
  --line:          #DED4C0;
  --line-soft:     #E8E0D0;

  --ink:           #1E1B15;
  --ink-2:         #514A3B;
  --ink-3:         #776E5C;

  --gold:          #8A6C33;
  --gold-bright:   #6E5526;
  --gold-deep:     #C9A25C;

  --gilt-1:        #A5813E;
  --gilt-2:        #7A5E2B;
  --gilt-3:        #B08A45;

  --btn-gold-a:    #C9A25C;
  --btn-gold-b:    #A5813E;
  --btn-gold-ink:  #1A1509;
  --btn-gold-glow: rgba(138,108,51,.45);
  --btn-gold-glow-h: rgba(138,108,51,.55);
  --ghost-bg:      rgba(255,255,255,.55);

  --header-bg:     rgba(250,246,236,.78);
  --header-bg-stuck: rgba(250,246,236,.93);

  --accent-bd:     rgba(138,108,51,.45);
  --tag-bd:        rgba(138,108,51,.35);
  --tag-bg:        rgba(201,162,92,.16);
  --feature-bd:    rgba(138,108,51,.35);

  --grain-op:      .10;
  --grid-ink:      rgba(0,0,0,.5);
  --grid-op:       .018;
  --glow-gold:     rgba(201,162,92,.22);
  --glow-green:    rgba(70,87,74,.10);
  --closing-glow:  rgba(201,162,92,.22);

  --board-shadow:  rgba(60,45,20,.28);
  --board-frame:   rgba(138,108,51,.35);
  --coord:         #8A8270;
  --spine:         rgba(0,0,0,.10);
  --cover-edge:    rgba(60,45,20,.28);

  --shadow-s: 0 2px 8px rgba(60,45,20,.10);
  --shadow-m: 0 18px 40px -18px rgba(60,45,20,.22);
  --shadow-l: 0 40px 80px -30px rgba(60,45,20,.30);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, ul, ol, dl, dd { margin: 0; }
ul[class] { list-style: none; padding: 0; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button { font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- Base ---------- */
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1rem, .96rem + .2vw, 1.075rem);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background-color .3s ease, color .3s ease;
}

/* grano sutil sobre todo el fondo */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--grain-op);
  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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}
body > * { position: relative; z-index: 1; }

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

h1, h2, h3, .display {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.eyebrow {
  font-family: var(--sans);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.eyebrow--muted { color: var(--ink-3); }

.lede { color: var(--ink-2); font-size: 1.08em; text-wrap: pretty; }

.gilt {
  background: linear-gradient(100deg, var(--gilt-1), var(--gilt-2) 38%, var(--gilt-3) 72%, var(--gilt-1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  padding: .85em 1.5em;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 3px; }

.btn--gold {
  background: linear-gradient(180deg, var(--btn-gold-a), var(--btn-gold-b));
  color: var(--btn-gold-ink);
  box-shadow: 0 10px 26px -12px var(--btn-gold-glow);
}
.btn--gold:hover { box-shadow: 0 16px 34px -12px var(--btn-gold-glow-h); }

.btn--ghost {
  border-color: var(--line);
  color: var(--ink);
  background: var(--ghost-bg);
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold-bright); }

.btn--sm { padding: .6em 1.1em; font-size: .85rem; }

.btn .arrow { transition: transform .18s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: var(--header-bg);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background-color .25s ease;
}
.site-header.is-stuck {
  border-bottom-color: var(--line-soft);
  background: var(--header-bg-stuck);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .85rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -.01em;
}
.brand svg { width: 26px; height: 25px; color: var(--gold); flex: none; }
.brand span { white-space: nowrap; }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  text-decoration: none;
  font-size: .9rem;
  color: var(--ink-2);
  transition: color .18s ease;
}
.nav a:hover { color: var(--gold-bright); }

/* ---------- Cambio de tema (peón blanco / peón negro) ---------- */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: none;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--ghost-bg);
  color: var(--ink-2);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, transform .2s ease, background-color .2s ease;
}
.theme-toggle:hover,
.theme-toggle:focus-visible { color: var(--gold-bright); border-color: var(--gold); transform: translateY(-2px); }
.theme-toggle:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 3px; }
.theme-toggle svg { width: 16px; height: 21px; }
/* Las piezas del botón son los glifos del libro: el peón blanco es su dibujo de
   contorno, el negro su silueta. Monocromas, así siguen el color del tema. */
/* Etiqueta al pasar el ratón: nombra el tema al que se cambia. */
.theme-toggle::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + .5rem);
  left: 50%;
  transform: translateX(-50%) translateY(-3px);
  padding: .38em .7em;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: var(--surface-2);
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: var(--shadow-s);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}
.theme-toggle:hover::after,
.theme-toggle:focus-visible::after { opacity: 1; transform: translateX(-50%) translateY(0); }

/* En oscuro se ofrece el claro: peón blanco. En claro se ofrece el oscuro: peón negro. */
.theme-toggle .i-peon-negro { display: none; }
:root[data-theme="light"] .theme-toggle .i-peon-negro { display: block; }
:root[data-theme="light"] .theme-toggle .i-peon-blanco { display: none; }

/* El <picture> no debe crear caja propia: la rejilla de las fichas coloca la <img>.
   ⚠️ <source> NO trae display:none del navegador, así que con display:contents en el
   <picture> se convertía en un elemento más de la rejilla y descolocaba las filas. */
picture { display: contents; }
picture > source { display: none; }

@media (max-width: 860px) {
  .nav { display: none; }
  .brand span { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5.5rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 120%;
  background:
    radial-gradient(60% 50% at 72% 22%, var(--glow-gold), transparent 70%),
    radial-gradient(50% 40% at 18% 8%, var(--glow-green), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-conic-gradient(var(--grid-ink) 0 25%, transparent 0 50%);
  background-size: 96px 96px;
  opacity: var(--grid-op);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.25rem, 1.5rem + 3.1vw, 3.9rem);
  margin-bottom: 1.25rem;
}
.hero .lede { max-width: 46ch; }
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 2rem;
}
.hero__note {
  margin-top: 1.6rem;
  font-size: .85rem;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.hero__note svg { width: 15px; height: 15px; color: var(--gold); flex: none; }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__board { max-width: 440px; margin-inline: auto; }
}

/* ---------- Tablero ---------- */
.board-figure { margin: 0; }
.board {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 55px var(--board-shadow));
}
/* El tablero reproduce el del libro: casillas blancas y grises, marco negro,
   piezas Merida. NO sigue el tema — es el objeto, no la interfaz. */
.sq-l { fill: var(--sq-light); }
.sq-d { fill: var(--sq-dark); }
.board__frame { fill: none; stroke: var(--sq-frame); stroke-width: 4; }
.board__coord { font-family: var(--sans); font-size: 13px; font-weight: 500; fill: var(--coord); }
/* El rastro NO sigue el tema: el tablero tampoco. En claro, un dorado oscuro
   desaparecía sobre las casillas verdes. */
.board__path {
  fill: none;
  stroke: var(--reti);
  stroke-width: 4.5;
  stroke-linecap: round;
  stroke-dasharray: 1 13;
  paint-order: stroke;
  opacity: 1;
  animation: march 2.4s linear infinite;
}
@keyframes march { to { stroke-dashoffset: -30; } }

.pc { --pc-stroke: var(--pc-b); }
.pc--w { color: var(--pc-w); }
.pc--b { color: var(--pc-b); --pc-stroke: var(--pc-w); }

.board-figure figcaption {
  margin-top: 1.1rem;
  font-size: .85rem;
  color: var(--ink-3);
  text-align: center;
  text-wrap: balance;
}
.board-figure figcaption b { color: var(--ink-2); font-weight: 600; }

/* ---------- Secciones ---------- */
.section { padding: clamp(3.5rem, 7vw, 6.5rem) 0; }
.section--alt {
  background: linear-gradient(180deg, transparent, var(--bg-2) 12%, var(--bg-2) 88%, transparent);
  border-block: 1px solid var(--line-soft);
}
.section__head { max-width: 62ch; margin-bottom: clamp(2.25rem, 4vw, 3.5rem); }
.section__head h2 { font-size: clamp(1.9rem, 1.35rem + 2vw, 2.9rem); margin-bottom: .9rem; }
.section__head--center { margin-inline: auto; text-align: center; }

/* ---------- Ediciones ---------- */
/* Las dos tarjetas comparten las filas del contenedor mediante `subgrid`, de modo
   que etiqueta, portada, nombre, descripción y las cinco filas de datos quedan
   siempre a la misma altura en ambas. Aquí vive la antigua tabla comparativa. */
.editions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(9, auto);
  gap: clamp(1.25rem, 2.5vw, 2rem);
  row-gap: .95rem;
  column-gap: clamp(1.25rem, 2.5vw, 2rem);
}

.edition {
  position: relative;
  display: grid;
  grid-row: span 9;
  grid-template-rows: subgrid;
  grid-template-columns: minmax(0, 152px) minmax(0, 1fr);
  align-content: start;
  column-gap: clamp(1.25rem, 2.2vw, 1.85rem);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: linear-gradient(165deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  box-shadow: var(--shadow-m);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.edition:hover {
  transform: translateY(-4px);
  border-color: var(--accent-bd);
  box-shadow: var(--shadow-l);
}
.edition__tag {
  justify-self: start;
  padding: .35em .8em;
  border-radius: 999px;
  border: 1px solid var(--tag-bd);
  background: var(--tag-bg);
  color: var(--gold-bright);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.edition__tag, .edition__name, .edition__desc { grid-column: 2; }
.edition__cover {
  grid-column: 1;
  grid-row: 1 / 4;
  align-self: start;
  width: 100%;
  border-radius: 3px 6px 6px 3px;
  box-shadow:
    -3px 0 0 var(--spine) inset,
    var(--shadow-l),
    0 2px 6px var(--cover-edge);
  transform: perspective(900px) rotateY(-11deg) rotateX(2deg);
  transition: transform .4s cubic-bezier(.2,.7,.3,1);
}
.edition:hover .edition__cover { transform: perspective(900px) rotateY(-4deg) rotateX(0deg) translateY(-4px); }
.edition h3 { font-size: clamp(1.4rem, 1.15rem + .9vw, 1.85rem); }
.edition__sub { color: var(--gold); font-size: .92rem; font-weight: 500; margin-top: .35rem; }
.edition__desc { color: var(--ink-2); }

.spec {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-top: .7rem;
  border-top: 1px solid var(--line-soft);
}
.spec__k {
  flex: none;
  font-size: .7rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.spec__v {
  text-align: right;
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.spec__v--txt {
  font-family: var(--sans);
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink-2);
  text-wrap: balance;
}
.edition__foot { grid-column: 1 / -1; align-self: end; padding-top: .5rem; }

@media (max-width: 900px) {
  .editions { grid-template-columns: 1fr; grid-template-rows: none; row-gap: clamp(1.25rem, 2.5vw, 2rem); }
  .edition { grid-row: auto; grid-template-rows: none; row-gap: .95rem; }
}
@media (max-width: 560px) {
  .edition { grid-template-columns: 1fr; }
  .edition__cover { grid-column: auto; grid-row: auto; width: min(160px, 45%); }
  .edition__tag, .edition__name, .edition__desc { grid-column: auto; }
}

/* ---------- El método: páginas del libro ----------
   Las capturas son PÁGINAS IMPRESAS: papel blanco y filete negro, igual que el
   tablero del hero. NO siguen el tema — son el objeto, no la interfaz. */
.showcase {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4.5rem);
}
.showcase__row {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: center;
}
.showcase__row--flip .pagina { order: 2; }

.pagina { margin: 0; }
.pagina__zoom {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--sq-frame);
  border-radius: 2px;
  background: var(--sq-light);
  box-shadow: 0 18px 40px -18px var(--board-shadow);
  cursor: zoom-in;
  position: relative;
  transition: transform .35s ease, box-shadow .35s ease;
}
.pagina__zoom img { display: block; width: 100%; height: auto; }
.pagina__zoom:hover,
.pagina__zoom:focus-visible {
  transform: translateY(-4px) rotate(-.35deg);
  box-shadow: 0 26px 50px -18px var(--board-shadow);
}
.pagina__zoom:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 4px; }

/* El trazo repite el rastro de Réti: mismo oro fijo, mismos puntos en marcha. */
.pagina__mark {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: 0;
  transform: scale(.94);
}
.pagina__mark ellipse {
  fill: none;
  stroke: var(--reti);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 1 13;
}
.reveal.is-in .pagina__mark {
  opacity: 1;
  transform: none;
  transition: opacity .7s ease .35s, transform .7s cubic-bezier(.2,.7,.3,1) .35s;
}
.reveal.is-in .pagina__mark ellipse { animation: march 2.4s linear infinite; }

.showcase__text h3 { font-size: clamp(1.35rem, 1.1rem + .7vw, 1.7rem); margin-bottom: .6rem; }
.showcase__text p { color: var(--ink-2); font-size: 1.02rem; }

@media (max-width: 780px) {
  .showcase__row { grid-template-columns: 1fr; gap: 1.25rem; }
  .showcase__row--flip .pagina { order: 0; }
}

/* Lupa: <dialog> nativo, sin dependencias. */
.lupa {
  width: min(1100px, 94vw);
  padding: 0;
  border: 1px solid var(--sq-frame);
  border-radius: 2px;
  background: var(--sq-light);
}
.lupa::backdrop { background: rgba(10,9,8,.82); }
.lupa img { display: block; width: 100%; height: auto; }
.lupa__close {
  position: absolute;
  top: 0; right: 0;
  padding: .05em .4em .15em;
  border: 0;
  border-left: 1px solid var(--sq-frame);
  border-bottom: 1px solid var(--sq-frame);
  background: var(--sq-light);
  color: var(--pc-b);
  font-size: 1.7rem;
  line-height: 1.15;
  cursor: pointer;
}
.lupa__close:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }

/* ---------- Autor ---------- */
.author {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 820px) { .author { grid-template-columns: 1fr; } }
.author__statement {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: -.015em;
  color: var(--ink);
  padding-left: 1.5rem;
  border-left: 2px solid var(--gold);
  text-wrap: balance;
}
.author p + p { margin-top: 1.1rem; }
.author p { color: var(--ink-2); }

/* ---------- Contacto ----------
   El ÚNICO recurso externo de la página: static.app inyecta static-forms.js
   donde vive el formulario, y el formulario vive aquí. */
.section__lede {
  margin-top: .9rem;
  color: var(--ink-2);
  font-size: 1.05rem;
}
.formulario { max-width: 640px; margin-inline: auto; }
.campo { margin-bottom: 1.35rem; }
.campo label {
  display: block;
  margin-bottom: .45rem;
  color: var(--ink-2);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.campo input,
.campo textarea {
  width: 100%;
  padding: .85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.campo textarea { resize: vertical; min-height: 8rem; }
.campo input:focus,
.campo textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--tag-bg);
}
.formulario button[type="submit"] { margin-top: .25rem; }
.formulario__nota {
  margin-top: 1.1rem;
  color: var(--ink-3);
  font-size: .88rem;
}
/* Se inserta como hermano del formulario, no dentro, así que necesita su misma
   caja: sin esto ocupaba todo el ancho del .wrap. */
.form-done {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 1.75rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--accent-bd);
  border-radius: var(--r-m);
  background: var(--tag-bg);
  color: var(--ink);
}
.form-done p { margin: 0; }
.form-done button {
  flex: none;
  border: 0;
  background: none;
  color: var(--ink-2);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}

/* ---------- Páginas legales ---------- */
.legal { max-width: 720px; margin-inline: auto; }
.legal h2 {
  margin-top: 2.75rem;
  font-size: clamp(1.25rem, 1.1rem + .6vw, 1.55rem);
}
.legal h2:first-of-type { margin-top: 1.5rem; }
.legal p, .legal li { color: var(--ink-2); }
.legal p { margin-top: .9rem; max-width: 68ch; }
.legal ul { margin: .9rem 0 0 1.2rem; }
.legal li { margin-top: .4rem; }
.legal .meta { margin-top: 3rem; color: var(--ink-3); font-size: .88rem; }

/* ---------- CTA final ---------- */
.closing {
  position: relative;
  text-align: center;
  padding: clamp(4rem, 9vw, 7rem) 0;
  overflow: hidden;
}
.closing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(55% 70% at 50% 45%, var(--closing-glow), transparent 72%);
  pointer-events: none;
}
.closing h2 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem); margin-bottom: 1.1rem; }
.closing p { color: var(--ink-2); max-width: 52ch; margin-inline: auto; }
.closing .hero__cta { justify-content: center; }

/* ---------- Pie ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 3rem 0 3.5rem;
  font-size: .88rem;
  color: var(--ink-3);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}
.site-footer a { color: var(--ink-2); text-decoration-color: var(--line); text-underline-offset: 3px; }
.site-footer a:hover { color: var(--gold-bright); }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 1.5rem; list-style: none; padding: 0; margin: 0; }

/* ---------- Aparición al hacer scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: #C9A25C;
  color: #1A1509;
  padding: .7em 1.2em;
  border-radius: 0 0 var(--r-s) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* Señuelo antispam: el rastreador lee "hola@spam.manualdefinales.com", el lector ve la dirección buena.
   Se usa en el aviso legal y en la política de privacidad. */
.e-x { display: none; }