/* Templanza Studio — templanza.css
   Dos estados a escala de página: apagada (papel, tinta) / encendida (noche, luz cálida).
   Tokens heredados del Códice V133. Sobriedad Radical: nada decorativo. */

@import url('https://fonts.googleapis.com/css2?family=Bodoni+Moda:ital,opsz,wght@0,6..96,300..600;1,6..96,300..600&family=Figtree:ital,wght@0,300;0,400;0,500;1,300&family=Chivo+Mono:wght@400;500&display=swap');

:root {
  /* Códice */
  --paper: #F7F5F0;
  --paper2: #FFFFFF;
  --ink: #1B2130;
  --ink2: #4A505E;
  --dim: #8B93A3;
  --line: #E4DFD5;
  --accent: #C6841F;
  --accent-l: #E8A94B;
  --blue: #4A7A92;

  /* Estado apagada (defecto) */
  --bg: var(--paper);
  --fg: var(--ink);
  --fg2: var(--ink2);
  --mute: var(--dim);
  --rule: var(--line);
  --surface: var(--paper2);
  --focus: var(--blue);

  /* La pieza dibujada */
  --porcelain: #FBFAF7;
  --porcelain-edge: #D9D4CA;
  --porcelain-core: #FBFAF7;
  --body-core: #FFFFFF;
  --body-edge: #E6E1D6;
  --glow-a: 0;            /* intensidad del resplandor, 0..1 */
  --glow-color: #E8A94B;
  --ground-shadow: rgba(27,33,48,.10);
  --stroke: #1B2130;
  --stroke-w: .8;

  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --t-state: 1100ms;

  --measure: 62ch;
  --gutter: clamp(1.25rem, 5vw, 3rem);

  color-scheme: light;
}

:root[data-state="on"] {
  --bg: #141926;
  --fg: var(--paper);
  --fg2: #C9CCD3;
  --mute: #8B93A3;
  --rule: #2B3142;
  --surface: #1B2130;
  --focus: var(--accent-l);

  --porcelain: #F6E7C9;
  --porcelain-edge: #E2B56A;
  --porcelain-core: #FFF5DF;
  --body-core: #2A3040;
  --body-edge: #161B27;
  --glow-a: 1;
  --ground-shadow: rgba(232,169,75,.22);
  --stroke: #F1E4C8;
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Figtree', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.58;
  font-weight: 300;
  font-feature-settings: 'calt', 'kern', 'ss01';
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--t-state) var(--ease-out), color var(--t-state) var(--ease-out);
  min-height: 100dvh;
}

/* Superficies del navegador: selección, foco, scrollbar, caret */
::selection { background: var(--accent-l); color: var(--ink); }
:root[data-state="on"] ::selection { background: var(--accent); color: var(--paper); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
input, textarea { caret-color: var(--accent); }
@supports (scrollbar-color: auto) {
  html { scrollbar-color: var(--mute) transparent; scrollbar-width: thin; }
}

/* Idioma: solo se muestra el idioma activo */
:root[data-lang="en"] [lang="es"]:not(html),
:root[data-lang="es"] [lang="en"]:not(html) { display: none !important; }

/* Tipografía */
h1, h2, h3 {
  font-family: 'Bodoni Moda', 'Bodoni 72', Didot, Georgia, serif;
  font-variation-settings: 'opsz' 96;
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin: 0;
  color: var(--fg);
}
h1 { font-size: clamp(2.7rem, 7.2vw, 5rem); font-weight: 300; line-height: 1.02; letter-spacing: -0.01em; }
h1 em { font-style: italic; font-variation-settings: 'opsz' 96; font-weight: 400; color: var(--fg); transition: color var(--t-state) var(--ease-out); }
:root[data-state="on"] h1 em { color: #F3C26E; text-shadow: 0 0 calc(28px * var(--glow-a)) rgba(243,194,110,.55); }
h2 { font-size: clamp(1.9rem, 4.6vw, 2.8rem); margin: 4.5rem 0 1rem; font-weight: 300; font-variation-settings: 'opsz' 48; }
h3 { font-size: 1.35rem; margin: 2.25rem 0 .5rem; font-variation-settings: 'opsz' 24; font-weight: 400; }
p { margin: 0 0 1.1em; max-width: var(--measure); text-wrap: pretty; overflow-wrap: anywhere; }
p.lede {
  font-family: 'Bodoni Moda', Georgia, serif;
  font-variation-settings: 'opsz' 36;
  font-size: clamp(1.35rem, 3.2vw, 1.75rem);
  line-height: 1.35;
  color: var(--fg);
  max-width: 28ch;
}
em { font-style: italic; }
a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: currentColor; }
code, .mono { font-family: 'Chivo Mono', ui-monospace, Menlo, Consolas, monospace; font-size: .92em; font-variant-numeric: tabular-nums; }
small, .small { font-size: .875rem; color: var(--fg2); }
strong { font-weight: 500; }
.btn { font-weight: 400; }

/* ---------- estructura ---------- */
.wrap { width: min(100% - 2 * var(--gutter), 68rem); margin-inline: auto; }

header.site {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.1rem 0 .6rem;
}
.logo {
  display: inline-block; width: 164px; aspect-ratio: 1488 / 321;
  background: currentColor;
  -webkit-mask: url('templanza-logo.png') center / contain no-repeat;
          mask: url('templanza-logo.png') center / contain no-repeat;
  color: var(--fg);
  transition: color var(--t-state) var(--ease-out);
}
.logo:focus-visible { outline-offset: 6px; }

.controls { display: flex; gap: .5rem; align-items: center; }

/* Botones: uno por función, sin relleno decorativo */
.btn {
  appearance: none; cursor: pointer; font: inherit;
  font-size: .9375rem; font-weight: 500; letter-spacing: .01em;
  color: var(--fg); background: transparent;
  border: 1px solid var(--fg);
  border-radius: 999px; padding: .55rem 1.05rem; line-height: 1;
  transition: background-color 220ms var(--ease-out), color 220ms var(--ease-out), border-color var(--t-state) var(--ease-out);
}
.btn:hover { background: var(--fg); color: var(--bg); }
.btn:active { transform: translateY(1px); }
.btn-lang { font-family: 'Chivo Mono', monospace; font-size: .8125rem; padding: .5rem .8rem; border-color: var(--mute); }
.btn-lang:hover { border-color: var(--fg); }

.btn-state {
  display: inline-flex; align-items: center; gap: .7rem;
  padding: .8rem 1.35rem .8rem 1.05rem; font-size: 1rem;
}
.btn-state .dot {
  width: .7rem; height: .7rem; border-radius: 50%;
  background: transparent; border: 1.5px solid currentColor;
  transition: background-color 400ms var(--ease-out), box-shadow 900ms var(--ease-out);
}
:root[data-state="on"] .btn-state .dot {
  background: var(--accent-l); border-color: var(--accent-l);
  box-shadow: 0 0 0 4px rgba(232,169,75,.18), 0 0 18px 4px rgba(232,169,75,.45);
}
:root[data-state="on"] .btn-state:hover .dot { box-shadow: none; }

/* ---------- primer viewport: la pieza ---------- */
.piece {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0 0 2rem;
}
@media (min-width: 48rem) {
  .piece { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 2rem; padding: 0 0 3rem; min-height: calc(100dvh - 6rem); }
}
.stage {
  position: fixed; inset: 0; z-index: 0; margin: 0;
  display: grid; place-items: center;
  touch-action: pan-y;                 /* el dedo gira la pieza en horizontal; la página sigue haciendo scroll */
  cursor: grab; user-select: none; -webkit-user-select: none;
  opacity: 1;
}
.stage:active { cursor: grabbing; }
.stage canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block; }
.stage .lamp { width: min(60vw, 260px); height: auto; display: block; overflow: visible; transform: translateY(-12vh); }
@media (min-width: 48rem) { .stage .lamp { width: min(28vw, 340px); transform: translateX(24vw); } }
.stage.is-3d .lamp { display: none; }

/* la página flota sobre la escena: solo el contenido recibe el puntero; el vacío gira la pieza */
.wrap { position: relative; z-index: 1; }
header.site, main, footer.site { position: relative; z-index: 1; }
:root.tz-3d body { transition: color var(--t-state) var(--ease-out); }
header.site, main, footer.site, section, .cols, .words, .piece { pointer-events: none; }
p, h1, h2, h3, dl, ol, a, button, label, input, .logo, .controls, footer.site div, .sig { pointer-events: auto; }
.piece::before { content: ''; display: block; height: 50dvh; pointer-events: none; }
@media (min-width: 48rem) { .piece::before { display: none; } .piece .words { grid-column: 1; } }

.piece .words > * + * { margin-top: 1.25rem; }
.serial { font-family: 'Chivo Mono', monospace; font-size: .9rem; color: var(--fg2); letter-spacing: .02em; }
.serial b { font-weight: 500; color: var(--fg); }
.hint { color: var(--mute); }

/* interruptor + regulador */
.switch { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }
.dimmer { display: inline-flex; align-items: center; width: min(12rem, 40vw); height: 2.75rem; }
.dimmer input[type=range] {
  appearance: none; -webkit-appearance: none; width: 100%; height: 2.75rem; background: transparent; margin: 0; cursor: pointer;
}
.dimmer input[type=range]::-webkit-slider-runnable-track {
  height: 1px; background: linear-gradient(90deg, #F3C26E calc(var(--glow-a) * 100%), var(--mute) 0);
  transition: background 200ms linear;
}
.dimmer input[type=range]::-moz-range-track { height: 1px; background: var(--mute); }
.dimmer input[type=range]::-moz-range-progress { height: 1px; background: #F3C26E; }
.dimmer input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 1.05rem; height: 1.05rem; margin-top: -.5rem; border-radius: 50%;
  background: var(--bg); border: 1.5px solid var(--fg);
  box-shadow: 0 0 0 calc(6px * var(--glow-a)) rgba(243,194,110,.22), 0 0 calc(18px * var(--glow-a)) rgba(243,194,110,.6);
  transition: background-color var(--t-state) var(--ease-out), border-color var(--t-state) var(--ease-out);
}
.dimmer input[type=range]::-moz-range-thumb {
  width: 1.05rem; height: 1.05rem; border-radius: 50%; background: var(--bg); border: 1.5px solid var(--fg);
}
.dimmer input[type=range]:focus-visible { outline: none; }
.dimmer input[type=range]:focus-visible::-webkit-slider-thumb { outline: 2px solid var(--focus); outline-offset: 3px; }

/* El dibujo: transiciones de estado */
.lamp-porcelain { fill: url(#porcelainGrad); }
.lamp-stroke { stroke: var(--stroke); stroke-width: var(--stroke-w); fill: none; vector-effect: non-scaling-stroke; transition: stroke var(--t-state) var(--ease-out); }
.lamp-fill { fill: url(#bodyGrad); }
#bodyGrad stop { transition: stop-color var(--t-state) var(--ease-out); }
#bodyGrad .b-edge { stop-color: var(--body-edge); }
#bodyGrad .b-core { stop-color: var(--body-core); }
.lamp-band { fill: var(--bg); transition: fill var(--t-state) var(--ease-out); }
.lamp-glow { opacity: var(--glow-a); transition: opacity calc(var(--t-state) * 1.3) var(--ease-out); }
.lamp-ground { fill: var(--ground-shadow); transition: fill var(--t-state) var(--ease-out); }
.lamp-halo { opacity: var(--glow-a); transition: opacity calc(var(--t-state) * 1.6) var(--ease-out); }
.lamp-text { fill: var(--mute); font-family: 'Chivo Mono', monospace; font-size: 3.2px; letter-spacing: .04em; transition: fill var(--t-state) var(--ease-out); }
#porcelainGrad stop { transition: stop-color var(--t-state) var(--ease-out); }
#porcelainGrad .s-edge { stop-color: var(--porcelain-edge); }
#porcelainGrad .s-core { stop-color: var(--porcelain-core); }
#porcelainGrad .s-mid  { stop-color: var(--porcelain); }

@media (prefers-reduced-motion: reduce) {
  :root { --t-state: 1ms; }
  .btn:active { transform: none; }
}

/* Etiquetas del interruptor según estado */
.btn-state .lbl-on { display: none; }
:root[data-state="on"] .btn-state .lbl-on { display: inline; }
:root[data-state="on"] .btn-state .lbl-off { display: none; }

/* ---------- reveals ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 900ms var(--ease-out), transform 1100ms var(--ease-out); }
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; transition: none; } }

/* ---------- secciones ---------- */
section.state { padding-top: .5rem; border-top: 1px solid var(--rule); transition: border-color var(--t-state) var(--ease-out); }
section.state[data-for="off"] h2::after,
section.state[data-for="on"] h2::after { content: ''; }
.state-mark {
  font-family: 'Chivo Mono', monospace; font-size: .8125rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--mute); display: block; margin-bottom: .4rem;
}
/* La sección que corresponde al estado actual lleva el acento; la otra, no */
:root[data-state="off"] section[data-for="off"] .state-mark,
:root[data-state="on"]  section[data-for="on"]  .state-mark { color: var(--accent); }

.cols { display: grid; grid-template-columns: 1fr; gap: 1.5rem 3rem; }
@media (min-width: 48rem) { .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

dl.spec { margin: 1.25rem 0 0; max-width: var(--measure); }
dl.spec div { display: grid; grid-template-columns: minmax(7.5rem, 11rem) 1fr; gap: .25rem 1.25rem; padding: .7rem 0; border-top: 1px solid var(--rule); transition: border-color var(--t-state) var(--ease-out); }
dl.spec div:last-child { border-bottom: 1px solid var(--rule); }
dl.spec dt { color: var(--fg2); font-size: .9375rem; margin: 0; }
dl.spec dd { margin: 0; }
dl.spec dd .pending { color: var(--mute); font-style: italic; }

ol.rules { padding-left: 1.25rem; max-width: var(--measure); margin: 1rem 0; }
ol.rules li { margin: .45rem 0; padding-left: .25rem; }
ol.rules li::marker { font-family: 'Chivo Mono', monospace; color: var(--mute); font-size: .9em; }

/* Certificado: documento, no tarjeta */
.cert {
  margin-top: 4.5rem; padding: 2rem 0 0;
  border-top: 1px solid var(--fg);
  transition: border-color var(--t-state) var(--ease-out);
}
.cert h2 { margin-top: 0; }
.cert .sig { margin-top: 2.25rem; display: grid; grid-template-columns: 1fr; gap: 1.5rem; max-width: var(--measure); }
@media (min-width: 40rem) { .cert .sig { grid-template-columns: 1fr 1fr; } }
.cert .sig > div { border-top: 1px solid var(--rule); padding-top: .6rem; font-size: .9375rem; color: var(--fg2); }
.cert .sig b { display: block; color: var(--fg); font-weight: 400; font-family: 'Bodoni Moda', serif; font-variation-settings: 'opsz' 24; font-size: 1.2rem; }

.note { font-size: .9375rem; color: var(--fg2); max-width: var(--measure); }

/* Enlace al control: acción real, no tarjeta */
.control-link {
  display: inline-flex; align-items: baseline; gap: .6rem; margin-top: .75rem;
  font-family: 'Chivo Mono', monospace; font-size: .95rem;
  padding: .7rem 1rem; border: 1px solid var(--rule); border-radius: 4px;
  text-decoration: none; transition: border-color 200ms var(--ease-out), background-color 200ms var(--ease-out);
}
.control-link:hover { border-color: var(--fg); }
.control-link svg { width: 1em; height: 1em; stroke: currentColor; fill: none; stroke-width: 1.5; }

footer.site {
  margin-top: 6rem; padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule);
  font-size: .9375rem; color: var(--fg2);
  display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; align-items: baseline;
  transition: border-color var(--t-state) var(--ease-out);
}
footer.site a { color: var(--fg); }
footer.site .mono { font-size: .85rem; }

/* Portada */
.statement p { font-size: 1.125rem; }
.statement p:first-of-type::first-letter { font-family: 'Bodoni Moda', serif; font-size: 1.45em; line-height: 1; font-weight: 400; }

/* Utilidades */
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0; }