/* Layout: hojas de papel sueltas sobre una mesa, iluminadas por una lámpara fija.
   La luz y las sombras se mueven despacio con el scroll; cada paso es una ficha que se levanta al abrirse. */
@property --lift { syntax: "<number>"; inherits: true; initial-value: 1; }

:root {
  --desk: #8a7f6c;
  --paper: #f1e7d0;
  --slip: #f6eedb;
  --note: #eddca0;
  --ink: #33291d;
  --ink-2: #54472f;
  --rule: rgba(51, 41, 29, .2);
  --pen: #386049;
  --pen-soft: rgba(56, 96, 73, .12);
  --hl: rgba(232, 170, 40, .42);
  --pencil: #92301f;
  --ok: #2b6b4e;
  --sh: 52 36 14;
  --edge-hi: rgb(255 250 232 / .6);
  --top-hi: rgb(255 248 225 / .4);
  --lamp-hi: rgb(255 238 200 / .5);
  --lamp-lo: rgb(34 22 4 / .34);
  --grain-o: .55;
  --fibre-o: .3;
  --font-body: "Literata", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-ui: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='g' x='0' y='0' width='100%25' height='100%25' color-interpolation-filters='sRGB'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='4' stitchTiles='stitch'/%3E%3CfeColorMatrix values='2.2 0 0 0 -.6 2.2 0 0 0 -.6 2.2 0 0 0 -.6 0 0 0 0 1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
  --fibre: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='520' height='520'%3E%3Cfilter id='f' x='0' y='0' width='100%25' height='100%25' color-interpolation-filters='sRGB'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.012 .55' numOctaves='2' seed='9' stitchTiles='stitch'/%3E%3CfeColorMatrix values='2.6 0 0 0 -.8 2.6 0 0 0 -.8 2.6 0 0 0 -.8 0 0 0 0 1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)'/%3E%3C/svg%3E");
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --desk: #0e1012; --paper: #24272f; --slip: #2b2f39; --note: #3b3722;
    --ink: #ece8de; --ink-2: #b6b4ac; --rule: rgba(236, 232, 222, .17);
    --pen: #98cfb0; --pen-soft: rgba(152, 207, 176, .14); --hl: rgba(224, 184, 60, .33);
    --pencil: #ff9486; --ok: #85d6a8; --sh: 0 0 0;
    --edge-hi: rgb(255 255 255 / .09); --top-hi: rgb(255 255 255 / .05);
    --lamp-hi: rgb(255 236 200 / .2); --lamp-lo: rgb(0 0 0 / .55);
    --grain-o: .26; --fibre-o: .16;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --desk: #0e1012; --paper: #24272f; --slip: #2b2f39; --note: #3b3722;
  --ink: #ece8de; --ink-2: #b6b4ac; --rule: rgba(236, 232, 222, .17);
  --pen: #98cfb0; --pen-soft: rgba(152, 207, 176, .14); --hl: rgba(224, 184, 60, .33);
  --pencil: #ff9486; --ok: #85d6a8; --sh: 0 0 0;
  --edge-hi: rgb(255 255 255 / .09); --top-hi: rgb(255 255 255 / .05);
  --lamp-hi: rgb(255 236 200 / .2); --lamp-lo: rgb(0 0 0 / .55);
  --grain-o: .26; --fibre-o: .16;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.72;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-inline: 16px;
  padding-block: 0 4rem;
  overflow-x: clip;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Luz fija sobre la mesa */
.lamp {
  position: fixed; inset: 0; z-index: 30; pointer-events: none;
  --hx: 30%; --hy: 8%;
  background:
    radial-gradient(110% 80% at var(--hx) var(--hy), var(--lamp-hi), transparent 60%),
    radial-gradient(150% 130% at 50% 38%, transparent 52%, var(--lamp-lo) 100%);
  mix-blend-mode: soft-light;
}

/* Barra superior: una tira de papel */
.bar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  margin-inline: -16px; padding: .55rem 16px;
  background: var(--paper);
  box-shadow: 0 1px 0 rgb(var(--sh) / .12), 0 6px 18px rgb(var(--sh) / .16);
  font-family: var(--font-ui); font-size: .8125rem;
}
.bar-in { max-width: 44rem; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: .9rem; }
.mark-name { font-family: var(--font-body); font-weight: 650; font-size: 1rem; letter-spacing: -.01em; }
.progress { display: flex; align-items: center; gap: .6rem; min-width: 0; }
.ticks { display: flex; gap: 3px; list-style: none; margin: 0; padding: 0; }
.ticks li { width: 14px; height: 6px; border-radius: 2px; background: var(--rule); transition: background .5s, transform .5s cubic-bezier(.2,.8,.2,1); }
.ticks li.on { background: var(--pen); transform: scaleY(1.25); }
.count { font-variant-numeric: tabular-nums; color: var(--ink-2); white-space: nowrap; }
.mode, .seg { display: inline-flex; padding: 2px; border-radius: 999px; background: rgb(var(--sh) / .08); gap: 2px; }
.mode button, .seg button {
  font: 500 .8125rem/1 var(--font-ui); color: var(--ink-2); background: transparent; border: 0;
  padding: .5rem .8rem; border-radius: 999px; cursor: pointer; min-height: 32px;
  transition: background .35s, color .35s, box-shadow .35s;
}
.mode button[aria-pressed="true"], .seg button[aria-pressed="true"] {
  background: var(--slip); color: var(--ink); box-shadow: 0 1px 2px rgb(var(--sh) / .25), 0 0 0 .5px rgb(var(--sh) / .15);
}
button:focus-visible, a:focus-visible, input:focus-visible + .box { outline: 2px solid var(--pen); outline-offset: 2px; }
@media (max-width: 520px) { .mark-name { display: none; } .ticks li { width: 10px; } .bar-in { justify-content: space-between; } }

/* Mesa y hojas */
.sheets {
  --sx: 0; --sy: 9;
  max-width: 44rem; margin: 1.6rem auto 0;
  display: flex; flex-direction: column; gap: 2.2rem;
}
.stack { position: relative; isolation: isolate; }
.under {
  position: absolute; inset: 0; z-index: -1; background: var(--paper); border-radius: 3px;
  box-shadow: 0 1px 2px rgb(var(--sh) / .2), 0 8px 20px rgb(var(--sh) / .14);
}
.u1 { rotate: 1.1deg; translate: 5px 7px; }
.u2 { rotate: -.9deg; translate: -6px 4px; }

.sheet {
  --lift: 1;
  position: relative; isolation: isolate;
  background:
    linear-gradient(180deg, var(--top-hi), transparent 180px),
    linear-gradient(90deg, rgb(var(--sh) / .05), transparent 2.5%, transparent 97.5%, rgb(var(--sh) / .06)),
    var(--paper);
  border-radius: 3px 3px 5px 5px;
  padding: clamp(1.6rem, 5.5vw, 3.4rem) clamp(1.25rem, 5.5vw, 3.4rem);
  box-shadow:
    inset 0 1px 0 var(--edge-hi),
    0 0 0 .5px rgb(var(--sh) / .14),
    calc(var(--sx) * .1px * var(--lift)) calc((var(--sy) * .1px + .5px) * var(--lift)) 1px rgb(var(--sh) / .2),
    calc(var(--sx) * .3px * var(--lift)) calc(var(--sy) * .3px * var(--lift)) 4px rgb(var(--sh) / .15),
    calc(var(--sx) * .8px * var(--lift)) calc(var(--sy) * .8px * var(--lift)) 16px rgb(var(--sh) / .15),
    calc(var(--sx) * 1.8px * var(--lift)) calc(var(--sy) * 1.8px * var(--lift)) 46px rgb(var(--sh) / .18);
}
.sheet::before, .sheet::after, .slip::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 0;
  mix-blend-mode: overlay;
}
.sheet::before, .slip::before { background-image: var(--grain); background-size: 220px 220px; opacity: var(--grain-o); }
.sheet::after { background-image: var(--fibre); background-size: 520px 520px; opacity: var(--fibre-o); }
.sheet > *, .slip > * { position: relative; z-index: 1; }

@keyframes land {
  from { --lift: 2.6; translate: 0 -16px; scale: 1.022; }
  to   { --lift: 1;   translate: 0 0;     scale: 1; }
}
.cover { animation: land 1.15s cubic-bezier(.16, .84, .24, 1) both; }
@keyframes settle { from { translate: 0 22px; scale: .987; } to { translate: 0 0; scale: 1; } }
@supports (animation-timeline: view()) {
  .sheet:not(.cover) { animation: settle linear both; animation-timeline: view(); animation-range: entry 0px entry 260px; }
}
@media (prefers-reduced-motion: reduce) { .cover, .sheet:not(.cover) { animation: none; } }

/* Tipografía */
.flow { display: flex; flex-direction: column; gap: 1.1rem; max-width: 40rem; }
p, ul, ol, h1, h2, h3 { margin: 0; }
h1, h2, h3 { font-weight: 640; letter-spacing: -.012em; line-height: 1.16; text-wrap: balance; font-variation-settings: "opsz" 60; }
h1 { font-size: clamp(2.35rem, 8vw, 3.7rem); font-weight: 700; font-variation-settings: "opsz" 72; line-height: 1.04; letter-spacing: -.022em; }
h2 { font-size: clamp(1.65rem, 4.8vw, 2.3rem); }
h3 { font-size: 1.3rem; line-height: 1.25; }
.lead { font-size: 1.25rem; line-height: 1.6; color: var(--ink-2); }
.small { font-size: .9rem; color: var(--ink-2); line-height: 1.6; }
.label { font: 500 .8125rem/1.2 var(--font-ui); color: var(--ink-2); }
a { color: var(--pen); text-underline-offset: .18em; text-decoration-thickness: 1px; }
mark { background: linear-gradient(transparent 50%, var(--hl) 50% 94%, transparent 94%); color: inherit; padding: 0 .15em; margin: 0 -.15em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
strong { font-weight: 650; }
.rule { height: 0; border: 0; border-top: 1px solid var(--rule); margin: 0; }
ul.plain, ol.plain { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .5rem; }
ul.plain li::marker { color: var(--pen); }

/* Portada */
.cover .flow { gap: 1.4rem; }
.wordmark { font: 600 .9rem/1 var(--font-ui); color: var(--ink-2); letter-spacing: .01em; }
.note {
  align-self: flex-start; max-width: 25rem; rotate: -1.2deg;
  background: var(--note); color: var(--ink); padding: 1rem 1.15rem 1.1rem; border-radius: 2px;
  box-shadow: 0 1px 1px rgb(var(--sh) / .22), 0 6px 14px rgb(var(--sh) / .2), 0 14px 26px rgb(var(--sh) / .1);
  font-size: 1rem; line-height: 1.55; position: relative; isolation: isolate;
}
.note::before { content: ""; position: absolute; inset: 0; background-image: var(--grain); opacity: .5; mix-blend-mode: overlay; z-index: 0; pointer-events: none; }
.note > * { position: relative; z-index: 1; }
.note b { color: var(--pencil); font-weight: 650; }
.note a { color: var(--ink); font-weight: 600; }

/* Casos */
.cases { display: grid; gap: .8rem; list-style: none; padding: 0; }
.cases li { display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: baseline; }
.dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--pen); translate: 0 -.12rem; }

/* Calma */
.facts { display: grid; gap: 1.1rem; list-style: none; padding: 0; counter-reset: f; }
.facts li { padding-left: 0; }
.facts b { display: block; font-weight: 650; font-size: 1.12rem; line-height: 1.35; margin-bottom: .2rem; }
.chips { display: flex; gap: .6rem; flex-wrap: wrap; }
.chips button {
  font: 500 .95rem/1.35 var(--font-ui); text-align: left; color: var(--ink); cursor: pointer;
  background: var(--slip); border: 1px solid var(--rule); border-radius: 4px; padding: .75rem .95rem; flex: 1 1 14rem;
  box-shadow: 0 1px 2px rgb(var(--sh) / .14);
  transition: box-shadow .4s, transform .4s cubic-bezier(.2,.8,.2,1), border-color .4s;
}
.chips button[aria-pressed="true"] { border-color: var(--pen); box-shadow: 0 0 0 1px var(--pen), 0 8px 18px rgb(var(--sh) / .18); transform: translateY(-2px); }
.case-panel { animation: fadein .5s cubic-bezier(.2,.8,.2,1); }
@keyframes fadein { from { opacity: 0; translate: 0 6px; } to { opacity: 1; translate: 0 0; } }
@media (prefers-reduced-motion: reduce) { .case-panel { animation: none; } }

/* Pasos: fichas de papel */
.steps { display: flex; flex-direction: column; gap: 1.5rem; }
.slip {
  position: relative; isolation: isolate; background: var(--slip); border-radius: 3px; padding: 1.2rem 1.25rem 1.3rem;
  box-shadow: inset 0 1px 0 var(--edge-hi), 0 0 0 .5px rgb(var(--sh) / .12),
    0 1px 2px rgb(var(--sh) / .18), calc(var(--sx) * .3px) calc(var(--sy) * .5px) 10px rgb(var(--sh) / .13);
  transition: box-shadow .6s cubic-bezier(.2,.8,.2,1), translate .6s cubic-bezier(.2,.8,.2,1);
}
.slip[data-view="long"] {
  translate: 0 -3px;
  box-shadow: inset 0 1px 0 var(--edge-hi), 0 0 0 .5px rgb(var(--sh) / .12),
    0 2px 3px rgb(var(--sh) / .16), calc(var(--sx) * .6px) calc(var(--sy) * 1.2px) 22px rgb(var(--sh) / .2), calc(var(--sx) * 1.4px) calc(var(--sy) * 2.4px) 44px rgb(var(--sh) / .12);
}
.slip::before { opacity: calc(var(--grain-o) * .7); }
.step-head { display: grid; grid-template-columns: auto 1fr auto; gap: .8rem; align-items: start; }
.num { font-weight: 700; font-size: 2.1rem; line-height: 1; color: var(--pen); font-variation-settings: "opsz" 72; min-width: 1.4rem; }
.done { display: inline-flex; align-items: center; gap: .45rem; cursor: pointer; font: 500 .8125rem/1 var(--font-ui); color: var(--ink-2); padding-top: .3rem; user-select: none; }
.done input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.box { width: 1.5rem; height: 1.5rem; border: 1.5px solid var(--ink-2); border-radius: 4px; display: grid; place-items: center; transition: border-color .3s, background .3s; }
.box svg { width: 1.1rem; height: 1.1rem; }
.tick { fill: none; stroke: var(--ok); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .5s cubic-bezier(.5,0,.2,1); }
.done input:checked + .box { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.done input:checked + .box .tick { stroke-dashoffset: 0; }
.slip.is-done h3 { color: var(--ink-2); }
.seg { margin-block: .9rem .5rem; }
.pane { display: grid; grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows .6s cubic-bezier(.2,.8,.2,1), opacity .35s ease; }
.pane.on { grid-template-rows: 1fr; opacity: 1; transition-delay: 0s, .08s; }
.pane-in { overflow: hidden; min-height: 0; }
.txt { padding-block: .4rem .5rem; display: flex; flex-direction: column; gap: .85rem; }
.txt ul, .txt ol { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .4rem; }
.links { display: flex; flex-direction: column; gap: .6rem; margin-top: .6rem; }
.go {
  display: grid; grid-template-columns: 1fr auto; gap: .2rem .8rem; align-items: center; text-decoration: none; color: var(--ink);
  background: var(--paper); border: 1px solid var(--rule); border-radius: 4px; padding: .7rem .9rem;
  box-shadow: 0 1px 2px rgb(var(--sh) / .14);
  transition: box-shadow .4s, translate .4s cubic-bezier(.2,.8,.2,1), border-color .4s;
}
.go:hover { translate: 0 -2px; box-shadow: 0 8px 16px rgb(var(--sh) / .2); border-color: var(--pen); }
.go .org { font: 500 .78rem/1.2 var(--font-ui); color: var(--ink-2); grid-column: 1; }
.go .act { font: 600 .95rem/1.3 var(--font-ui); grid-column: 1; }
.go svg { grid-column: 2; grid-row: 1 / span 2; width: 16px; height: 16px; color: var(--pen); }

/* Carta modelo */
.letter { background: var(--note); border-radius: 2px; padding: 1rem 1.1rem; font-size: .95rem; line-height: 1.65; position: relative; isolation: isolate; white-space: pre-wrap; box-shadow: 0 1px 2px rgb(var(--sh) / .2), 0 6px 14px rgb(var(--sh) / .12); }
.letter::before { content: ""; position: absolute; inset: 0; background-image: var(--grain); opacity: .45; mix-blend-mode: overlay; pointer-events: none; z-index: 0; }
.letter * { position: relative; }
.tpl { display: flex; flex-direction: column; gap: .7rem; margin-top: .9rem; }
.ph { color: var(--pen); font-weight: 600; }
.copy { align-self: flex-start; font: 600 .85rem/1 var(--font-ui); color: var(--pen); background: var(--pen-soft); border: 1px solid transparent; border-radius: 4px; padding: .65rem .9rem; cursor: pointer; transition: background .3s; }
.copy:hover { background: color-mix(in srgb, var(--pen) 18%, transparent); }

/* Aviso */
.sources { display: flex; flex-direction: column; gap: .4rem; padding-left: 1.1rem; font-size: .92rem; }
.foot { text-align: center; font: 400 .8rem/1.5 var(--font-ui); color: var(--ink-2); padding: 1rem 0 0; }
.sheets + .foot { margin-top: 2rem; color: var(--ink); opacity: .75; }
@media (max-width: 480px) {
  .step-head { grid-template-columns: auto 1fr; }
  .done { grid-column: 1 / -1; padding-top: 0; }
}

/* Minimalista: la página entera es el papel; solo los pasos son recuadros */
body { background: var(--paper); }
.sheets { gap: 3.6rem; max-width: 40rem; margin-top: 2.4rem; }
.under { display: none; }
.sheet { background: none; box-shadow: none; border-radius: 0; padding: 0; transform: none !important; animation: none !important; }
.sheet::before, .sheet::after { display: none; }
.cover { padding-top: .5rem; }
.sheet + .sheet { border-top: 0; }
.lamp { background: radial-gradient(110% 80% at var(--hx) var(--hy), var(--lamp-hi), transparent 60%); opacity: .6; }
.bar { box-shadow: 0 1px 0 var(--rule); }
.slip { padding: 1.3rem 1.35rem 1.4rem; }

/* Toques modernos: cristal, mono, acento salvia, muelle */
:root { --spring: cubic-bezier(.2, 1.4, .4, 1); --r: 14px; }
@supports (transition-timing-function: linear(0, 1)) {
  :root { --spring: linear(0, .22 6%, .62 14%, .98 24%, 1.09 33%, 1.06 42%, .99 58%, 1.005 74%, 1); }
}
h1, h2, h3 { font-family: var(--font-ui); font-variation-settings: normal; font-weight: 600; letter-spacing: -.03em; }
h1 { font-size: clamp(2.6rem, 9vw, 4.4rem); line-height: 1; letter-spacing: -.045em; font-weight: 600; }
h2 { font-size: clamp(1.7rem, 5vw, 2.4rem); letter-spacing: -.035em; }
h3 { font-size: 1.22rem; letter-spacing: -.02em; }
.mark-name { font-family: var(--font-ui); font-weight: 600; letter-spacing: -.02em; }
.wordmark { font: 400 .8rem/1 "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace; letter-spacing: 0; display: inline-flex; align-items: center; gap: .55rem; }
.live { width: 7px; height: 7px; border-radius: 50%; background: var(--pen); box-shadow: 0 0 0 0 color-mix(in srgb, var(--pen) 40%, transparent); animation: live 3.2s ease-out infinite; }
@keyframes live { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--pen) 45%, transparent); } 70%, 100% { box-shadow: 0 0 0 8px transparent; } }
@media (prefers-reduced-motion: reduce) { .live { animation: none; } }

.bar { background: color-mix(in srgb, var(--paper) 72%, transparent); -webkit-backdrop-filter: blur(16px) saturate(1.3); backdrop-filter: blur(16px) saturate(1.3); }
.bar::after { content: ""; position: absolute; left: 0; bottom: -1px; height: 2px; width: calc(var(--read, 0) * 100%); background: var(--pen); opacity: .7; }
.ticks { display: none; }
.ring { --d: 0; width: 22px; height: 22px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--pen) calc(var(--d) * 1turn / 6), var(--rule) 0);
  -webkit-mask: radial-gradient(circle, transparent 7px, #000 7.5px); mask: radial-gradient(circle, transparent 7px, #000 7.5px);
  transition: background .6s; }
.count { font-family: "Geist Mono", ui-monospace, monospace; font-size: .78rem; }

.slip { border-radius: var(--r); padding: 1.35rem 1.4rem 1.5rem;
  box-shadow: inset 0 0 0 1px rgb(255 255 255 / .22), 0 1px 2px rgb(var(--sh) / .1), 0 10px 30px -8px rgb(var(--sh) / .22); }
.slip[data-view="long"] { box-shadow: inset 0 0 0 1px rgb(255 255 255 / .26), 0 2px 4px rgb(var(--sh) / .1), 0 22px 48px -10px rgb(var(--sh) / .3); }
.num { font-family: "Geist Mono", ui-monospace, monospace; font-weight: 500; font-size: 1.15rem; line-height: 1.9rem; letter-spacing: -.02em; min-width: 2.2rem; font-variation-settings: normal; }
.num::after { content: "/6"; color: var(--ink-2); opacity: .55; font-size: .8em; }
.go, .chips button, .letter, .copy { border-radius: 10px; }
.go { border-color: transparent; background: color-mix(in srgb, var(--paper) 70%, var(--slip)); }
.go:hover { border-color: transparent; }
.mode button, .seg button, .chips button, .done .box { transition-timing-function: ease; }
.mode button:active, .seg button:active, .copy:active { scale: .95; }
.mode button, .seg button, .copy { transition: background .35s, color .35s, box-shadow .35s, scale .5s var(--spring); }
.chips button[aria-pressed="true"] { transform: none; translate: 0 -2px; transition: translate .6s var(--spring), box-shadow .4s, border-color .4s; }
.done input:checked + .box { animation: pop .6s var(--spring); }
@keyframes pop { 0% { scale: 1; } 40% { scale: 1.2; } 100% { scale: 1; } }
@media (prefers-reduced-motion: reduce) { .done input:checked + .box { animation: none; } }
.rule { border-top-color: var(--rule); }
.lead { font-size: 1.22rem; }
.note::before, .letter::before { opacity: .14; }
.note { border-radius: 6px; }

/* Yermo y Rhuidean: arena, piedra, cristal. El cielo cambia de tono mientras lees. */
:root { --paper: #e8dcc4; --slip: #f1e8d3; --note: #e7d0a2;
  --ink: #2b231b; --ink-2: #4e4230; --rule: rgba(43, 35, 27, .2);
  --pen: #27605b; --pen-soft: rgba(39, 96, 91, .12); --hl: rgba(205, 140, 50, .38);
  --pencil: #8f4326; --ok: #2a6a5a; --sh: 60 40 20;
  --edge-hi: rgb(255 248 228 / .55); --top-hi: rgb(255 244 215 / .35);
  --lamp-hi: rgb(255 222 165 / .5); --lamp-lo: rgb(60 30 10 / .3);
  --glass: 95 160 152; --clay: 150 85 50;
  --sky: linear-gradient(180deg, transparent 10%, rgb(222 160 100 / .85) 100%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --paper: #1b1c21; --slip: #25262c; --note: #3a3326;
    --ink: #eadfc8; --ink-2: #b8ad98; --rule: rgba(234, 223, 200, .16);
    --pen: #86d0c7; --pen-soft: rgba(134, 208, 199, .14); --hl: rgba(210, 150, 60, .3);
    --pencil: #e59a78; --ok: #86d0c7; --sh: 0 0 0;
    --edge-hi: rgb(255 255 255 / .07); --top-hi: rgb(255 255 255 / .04);
    --lamp-hi: rgb(255 214 160 / .14); --lamp-lo: rgb(0 0 0 / .5);
    --glass: 134 208 199; --clay: 210 140 90;
    --sky: linear-gradient(180deg, transparent 10%, rgb(62 52 98 / .95) 100%);
    --grain-o: .22; --fibre-o: .12; color-scheme: dark; } }
:root[data-theme="dark"] { --paper: #1b1c21; --slip: #25262c; --note: #3a3326;
    --ink: #eadfc8; --ink-2: #b8ad98; --rule: rgba(234, 223, 200, .16);
    --pen: #86d0c7; --pen-soft: rgba(134, 208, 199, .14); --hl: rgba(210, 150, 60, .3);
    --pencil: #e59a78; --ok: #86d0c7; --sh: 0 0 0;
    --edge-hi: rgb(255 255 255 / .07); --top-hi: rgb(255 255 255 / .04);
    --lamp-hi: rgb(255 214 160 / .14); --lamp-lo: rgb(0 0 0 / .5);
    --glass: 134 208 199; --clay: 210 140 90;
    --sky: linear-gradient(180deg, transparent 10%, rgb(62 52 98 / .95) 100%);
    --grain-o: .22; --fibre-o: .12; color-scheme: dark; }
body { background: var(--paper); }
.land { position: fixed; inset: 0; z-index: -1; pointer-events: none; background: var(--sky); opacity: calc(.15 + var(--read, 0) * .85); }
.strata { position: relative; height: clamp(90px, 20vw, 150px); margin-inline: -16px; overflow: hidden; pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 50%, transparent); mask-image: linear-gradient(180deg, #000 50%, transparent); }
.strata svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.strata path { transition: none; }
.strata .m3 { fill: rgb(var(--clay) / .1); translate: calc(var(--read, 0) * -16px) 0; }
.strata .m2 { fill: rgb(var(--clay) / .16); translate: calc(var(--read, 0) * -34px) 0; }
.strata .m1 { fill: rgb(var(--clay) / .24); translate: calc(var(--read, 0) * -56px) 0; }
.cover > .shards { position: absolute; right: 0; top: 0; width: min(46%, 17rem); height: 17rem; z-index: 0; pointer-events: none; }
.shards i { position: absolute; bottom: 0; width: 15%; border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, rgb(var(--glass) / .34), rgb(var(--glass) / .03) 85%);
  border: 1px solid rgb(var(--glass) / .32); border-bottom: 0;
  -webkit-backdrop-filter: blur(5px); backdrop-filter: blur(5px);
  box-shadow: inset 1px 0 0 rgb(255 255 255 / .35); translate: 0 calc(var(--read, 0) * var(--k) * -1px); }
.shards i:nth-child(1) { left: 8%; height: 100%; --k: 70; }
.shards i:nth-child(2) { left: 30%; height: 72%; --k: 46; }
.shards i:nth-child(3) { left: 52%; height: 50%; --k: 30; }
.shards i:nth-child(4) { left: 74%; height: 30%; --k: 16; }
.cover > .flow { position: relative; z-index: 1; }
@media (prefers-reduced-motion: reduce) { .strata path, .shards i { translate: none; } }
.strata { width: 100vw; margin-inline: calc(50% - 50vw); }
.cover > .shards { width: min(40%, 14rem); height: 11rem; opacity: .9;
  -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent); mask-image: linear-gradient(180deg, #000 55%, transparent); }
@media (max-width: 520px) { .cover > .shards { width: 38%; height: 8.5rem; opacity: .7; } }

/* Grafito y arena */
:root { --paper: #e4d8c0; --slip: #eee6d3; --note: #dccfae;
  --ink: #2a2a2c; --ink-2: #4a4947; --rule: rgba(42, 42, 44, .2);
  --pen: #3b3b3e; --pen-soft: rgba(59, 59, 62, .1); --hl: rgba(185, 145, 70, .38);
  --pencil: #7a4a35; --ok: #3b3b3e; --sh: 44 38 30;
  --edge-hi: rgb(255 250 235 / .55); --top-hi: rgb(255 248 228 / .35);
  --lamp-hi: rgb(255 236 195 / .45); --lamp-lo: rgb(40 34 26 / .3);
  --glass: 140 138 132; --clay: 84 80 72;
  --sky: linear-gradient(180deg, transparent 10%, rgb(168 158 142 / .75) 100%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --paper: #28282a; --slip: #333335; --note: #403b2f;
    --ink: #ece4d2; --ink-2: #b6aea0; --rule: rgba(236, 228, 210, .16);
    --pen: #dccaa3; --pen-soft: rgba(220, 202, 163, .14); --hl: rgba(200, 160, 80, .28);
    --pencil: #d99c7e; --ok: #dccaa3; --sh: 0 0 0;
    --edge-hi: rgb(255 255 255 / .07); --top-hi: rgb(255 255 255 / .04);
    --lamp-hi: rgb(255 236 200 / .12); --lamp-lo: rgb(0 0 0 / .5);
    --glass: 205 195 175; --clay: 200 182 142;
    --sky: linear-gradient(180deg, transparent 10%, rgb(92 88 82 / .9) 100%);
    --grain-o: .22; --fibre-o: .12; color-scheme: dark; } }
:root[data-theme="dark"] { --paper: #28282a; --slip: #333335; --note: #403b2f;
    --ink: #ece4d2; --ink-2: #b6aea0; --rule: rgba(236, 228, 210, .16);
    --pen: #dccaa3; --pen-soft: rgba(220, 202, 163, .14); --hl: rgba(200, 160, 80, .28);
    --pencil: #d99c7e; --ok: #dccaa3; --sh: 0 0 0;
    --edge-hi: rgb(255 255 255 / .07); --top-hi: rgb(255 255 255 / .04);
    --lamp-hi: rgb(255 236 200 / .12); --lamp-lo: rgb(0 0 0 / .5);
    --glass: 205 195 175; --clay: 200 182 142;
    --sky: linear-gradient(180deg, transparent 10%, rgb(92 88 82 / .9) 100%);
    --grain-o: .22; --fibre-o: .12; color-scheme: dark; }

/* Movimiento seco: sin rebotes, respuesta corta y firme */
:root { --spring: cubic-bezier(.3, 0, .2, 1); }
.mode button, .seg button, .copy, .chips button, .go, .done .box { transition-duration: .16s; transition-timing-function: cubic-bezier(.3, 0, .2, 1); }
.mode button, .seg button, .copy { transition-property: background, color, box-shadow, scale; }
.mode button:active, .seg button:active, .copy:active { scale: .98; }
.done input:checked + .box { animation: none; }
.tick { transition-duration: .22s; transition-timing-function: cubic-bezier(.3, 0, .2, 1); }
.chips button[aria-pressed="true"] { transition: translate .16s cubic-bezier(.3, 0, .2, 1), box-shadow .16s, border-color .16s; }
.go { transition: box-shadow .18s cubic-bezier(.3, 0, .2, 1), translate .18s cubic-bezier(.3, 0, .2, 1), border-color .18s; }
.pane { transition: grid-template-rows .3s cubic-bezier(.3, 0, .2, 1), opacity .2s ease; }
.pane.on { transition-delay: 0s, .05s; }
.slip, .slip[data-view="long"] { transition: box-shadow .3s cubic-bezier(.3, 0, .2, 1), translate .3s cubic-bezier(.3, 0, .2, 1); }
.ring { transition: background .2s; }
.ticks li { transition-duration: .2s; }

/* Botones hundidos en la arena: al pulsar o al estar activos se marcan en el papel */
.mode, .seg { box-shadow: inset 0 1px 3px rgb(var(--sh) / .28), inset 0 0 0 .5px rgb(var(--sh) / .1); }
.mode button, .seg button, .copy, .chips button, .go, .done .box {
  transition: background .12s ease-out, box-shadow .12s ease-out, translate .12s ease-out, color .12s ease-out, border-color .12s ease-out;
}
.mode button[aria-pressed="true"], .seg button[aria-pressed="true"] {
  background: rgb(var(--sh) / .15); color: var(--ink); translate: 0 .5px;
  box-shadow: inset 0 2px 4px rgb(var(--sh) / .38), inset 0 1px 0 rgb(var(--sh) / .12), 0 1px 0 rgb(255 255 255 / .18);
}
.mode button:active, .seg button:active, .copy:active, .go:active, .chips button:active {
  scale: 1; translate: 0 1px;
  box-shadow: inset 0 3px 6px rgb(var(--sh) / .42), inset 0 1px 0 rgb(var(--sh) / .15);
}
.chips button[aria-pressed="true"] {
  translate: 0 1px; background: color-mix(in srgb, var(--slip) 88%, rgb(var(--sh)));
  box-shadow: inset 0 2px 5px rgb(var(--sh) / .3), 0 0 0 1px var(--pen);
}
.go:hover { translate: none; box-shadow: 0 1px 2px rgb(var(--sh) / .2); border-color: transparent; }
.copy { box-shadow: 0 1px 1px rgb(var(--sh) / .18); }
.done input:checked + .box { box-shadow: inset 0 2px 3px rgb(var(--sh) / .3); }
.done .box:active { translate: 0 1px; box-shadow: inset 0 2px 4px rgb(var(--sh) / .4); }

.theming, .theming *, .theming *::before, .theming *::after { transition: background-color .4s ease, color .4s ease, border-color .4s ease, box-shadow .4s ease, fill .4s ease !important; }

.share { display: flex; flex-wrap: wrap; gap: .5rem; }
.share a, .share button { font: 500 .85rem/1 var(--font-ui); padding: .7rem .9rem; border-radius: 10px; border: 0; color: var(--ink); text-decoration: none; cursor: pointer;
  background: color-mix(in srgb, var(--paper) 70%, var(--slip)); box-shadow: 0 1px 2px rgb(var(--sh) / .18);
  transition: background .12s ease-out, box-shadow .12s ease-out, translate .12s ease-out; }
.share a:active, .share button:active { translate: 0 1px; box-shadow: inset 0 3px 6px rgb(var(--sh) / .42); }
.share a, .share button { display: inline-flex; align-items: center; gap: .5rem; }
.share svg { width: 1.15rem; height: 1.15rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ===== Ganduo: añadidos del sitio ===== */
[hidden] { display: none !important; }
.bar-in { flex-wrap: wrap; row-gap: .3rem; }
.brand { font: 600 1.05rem/1 var(--font-ui); letter-spacing: -.03em; color: var(--ink); text-decoration: none; }
.nav { display: flex; gap: .15rem; font: 500 .8125rem/1 var(--font-ui); }
.nav a { color: var(--ink-2); text-decoration: none; padding: .55rem .7rem; border-radius: 999px; transition: background .12s ease-out, color .12s ease-out; }
.nav a:hover { color: var(--ink); background: rgb(var(--sh) / .1); }
.nav a[aria-current="page"] { color: var(--ink); background: rgb(var(--sh) / .12); }
@media (max-width: 640px) {
  .nav { order: 3; width: 100%; overflow-x: auto; margin-inline: -.7rem; padding-inline: .7rem; }
}

.crumb { font: 500 .8rem/1.2 var(--font-ui); color: var(--ink-2); }
.crumb a { color: inherit; }
.meta { font: 400 .8rem/1.5 "Geist Mono", ui-monospace, monospace; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: .2rem 1.1rem; }

.cards { display: grid; gap: 1.2rem; }
.cards .slip { display: flex; flex-direction: column; gap: .8rem; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: .8rem; flex-wrap: wrap; }
.card-head h3 { margin: 0; }
.status { font: 500 .72rem/1 var(--font-ui); letter-spacing: .02em; padding: .38rem .6rem; border-radius: 999px; background: var(--pen-soft); color: var(--pen); white-space: nowrap; }
.status.soon { background: rgb(var(--sh) / .09); color: var(--ink-2); }
.cards .links { margin-top: .2rem; }

.how { display: grid; gap: 1.1rem; list-style: none; padding: 0; margin: 0; }
.how b { display: block; font: 600 1.05rem/1.35 var(--font-ui); letter-spacing: -.01em; margin-bottom: .15rem; }

.legal { max-width: 40rem; }
.legal h2 { font-size: 1.3rem; margin-top: 1.1rem; letter-spacing: -.025em; }
.legal .flow { gap: .9rem; }
.legal ul { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .4rem; }
.fill { background: var(--hl); padding: 0 .25em; border-radius: 3px; font-family: var(--font-ui); font-size: .92em; }
.draft { background: var(--note); border-radius: 8px; padding: .85rem 1rem; font: 400 .9rem/1.55 var(--font-ui); color: var(--ink); }
.draft b { color: var(--pencil); }

.disclosure { background: var(--slip); border: 1px dashed var(--rule); border-radius: 10px; padding: .85rem 1rem; font: 400 .9rem/1.55 var(--font-ui); color: var(--ink-2); }
.disclosure b { color: var(--ink); }
.aff { font: 500 .7rem/1 var(--font-ui); letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); border: 1px solid var(--rule); border-radius: 4px; padding: .15rem .35rem; margin-left: .3rem; white-space: nowrap; }

.foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .3rem 1.3rem; font: 500 .82rem/1.4 var(--font-ui); padding: .4rem 0 0; }
.foot-links a { color: var(--ink-2); }
.foot-mail { font-family: "Geist Mono", ui-monospace, monospace; font-size: .8rem; user-select: all; }
.foot + .foot-links, .foot-links + .foot { margin-top: .2rem; }

/* ===== Secciones: losas de grafito sobre la arena (en noche, arena sobre grafito) ===== */
:root {
  --card-bg: #2f2e2c; --card-fg: #f0e8d5; --card-fg2: #bfb5a2; --card-pen: #e0cfa6;
  --card-go: rgb(240 232 213 / .08); --card-line: rgb(240 232 213 / .16);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --card-bg: #d9ccb0; --card-fg: #26262a; --card-fg2: #4f4a40; --card-pen: #3b3b3e;
    --card-go: rgb(38 38 42 / .08); --card-line: rgb(38 38 42 / .2);
  }
}
:root[data-theme="dark"] {
  --card-bg: #d9ccb0; --card-fg: #26262a; --card-fg2: #4f4a40; --card-pen: #3b3b3e;
  --card-go: rgb(38 38 42 / .08); --card-line: rgb(38 38 42 / .2);
}
.cards .slip {
  background: var(--card-bg); color: var(--card-fg); border-radius: 14px; padding: 1.5rem 1.5rem 1.6rem;
  box-shadow: 0 1px 2px rgb(var(--sh) / .3), 0 18px 34px -14px rgb(var(--sh) / .55);
}
.cards .slip::before { display: none; }
.cards .slip h3 { color: var(--card-fg); font-size: 1.45rem; }
.cards .slip p { color: var(--card-fg); }
.cards .slip .small { color: var(--card-fg2); }
.cards .slip .status { background: color-mix(in srgb, var(--card-pen) 20%, transparent); color: var(--card-pen); }
.cards .slip .status.soon { background: transparent; color: var(--card-fg2); box-shadow: inset 0 0 0 1px var(--card-line); }
.cards .slip .go { background: var(--card-go); color: var(--card-fg); box-shadow: inset 0 0 0 1px var(--card-line); }
.cards .slip .go .org { color: var(--card-fg2); }
.cards .slip .go svg { color: var(--card-pen); }
.cards .slip .go:hover { box-shadow: inset 0 0 0 1px var(--card-pen); }
.cards .slip a { color: var(--card-pen); }

/* ===== Portada: una costura vertical. Tú a un lado, lo que te queda al otro ===== */
.hero, .row { width: 100vw; margin-inline: calc(50% - 50vw); }
.hero { background: linear-gradient(90deg, var(--paper) 50%, var(--card-bg) 50%); margin-top: -2.4rem; }
.wm { display: grid; margin: 0; text-align: center; font: 700 clamp(4.2rem, 22vw, 12rem)/.86 var(--font-ui); letter-spacing: -.065em; padding: clamp(2.2rem, 9vw, 5rem) 0 .12em; }
.wm span { grid-area: 1 / 1; }
.wm .a { color: var(--ink); clip-path: inset(0 50% 0 0); }
.wm .b { color: var(--card-fg); clip-path: inset(0 0 0 50%); }
.halves { display: grid; grid-template-columns: 1fr 1fr; }
.halves p { margin: 0; padding: .6rem 1.25rem clamp(1.8rem, 6vw, 3.4rem); font: 500 clamp(1.05rem, 3.6vw, 1.65rem)/1.2 var(--font-ui); letter-spacing: -.025em; }
.hl { color: var(--ink); text-align: right; }
.hr { color: var(--card-fg); text-align: left; }

.ledger { display: block; }
.row { display: grid; grid-template-columns: 1fr 1fr; position: relative; }
.row .l, .row .r { padding: clamp(1.7rem, 5vw, 3rem) 1.25rem; }
.row .l { background: var(--paper); color: var(--ink); }
.row .r { background: var(--card-bg); color: var(--card-fg); }
.row .l > div, .row .r > div { max-width: 27rem; display: flex; flex-direction: column; gap: .8rem; }
.row .l > div { margin-left: auto; }
.row .r > div { margin-right: auto; }
.row + .row .l { box-shadow: inset 0 1px 0 var(--rule); }
.row + .row .r { box-shadow: inset 0 1px 0 var(--card-line); }
.row h2 { font-size: clamp(1.7rem, 5.4vw, 2.5rem); letter-spacing: -.04em; }
.row p { margin: 0; }
.row .l p { color: var(--ink-2); }
.row .r p { color: var(--card-fg); }
.tag { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; font: 500 .7rem/1.2 "Geist Mono", ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }
.row .l .tag { color: var(--ink-2); }
.row .r .tag { color: var(--card-fg2); }
.eq { position: absolute; left: 50%; top: clamp(1.7rem, 5vw, 3rem); translate: -50% 0; z-index: 2; width: 1.9rem; height: 1.9rem; display: grid; place-items: center; border-radius: 50%; background: var(--paper); color: var(--ink); font: 600 1rem/1 var(--font-ui); box-shadow: 0 0 0 1px var(--rule); }
.row .status { text-transform: none; letter-spacing: 0; }
.row .r .status { background: color-mix(in srgb, var(--card-pen) 20%, transparent); color: var(--card-pen); }
.row .r .status.soon { background: transparent; color: var(--card-fg2); box-shadow: inset 0 0 0 1px var(--card-line); }
.row .r .links, .row .r .go { margin-top: .2rem; }
.row .r .go { background: var(--card-go); color: var(--card-fg); box-shadow: inset 0 0 0 1px var(--card-line); }
.row .r .go .org { color: var(--card-fg2); }
.row .r .go svg { color: var(--card-pen); }
.row .r .go:hover { box-shadow: inset 0 0 0 1px var(--card-pen); }
@media (max-width: 640px) {
  .row { grid-template-columns: 1fr; }
  .row .l > div, .row .r > div { max-width: none; margin: 0; }
  .eq { display: none; }
  .row + .row .r { box-shadow: none; }
}

.entry { font: 400 1.05rem/1.6 var(--font-body); color: var(--ink-2); }
.entry b { font: 600 1.6rem/1 var(--font-ui); letter-spacing: -.04em; color: var(--ink); }
.entry .ipa { font: 400 .85rem/1 "Geist Mono", ui-monospace, monospace; margin-left: .4rem; }
.hero + .ledger { margin-top: -3.6rem; }
.ledger + .sheet { margin-top: -.6rem; }

/* ===== SEO / estructura: migas, índice, listados ===== */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.plain-link { color: inherit; text-decoration: none; }
.plain-link:hover { text-decoration: underline; text-underline-offset: .15em; }
.lead-block { gap: .8rem; }
.inline-links { display: inline-flex; gap: .3rem 1rem; flex-wrap: wrap; }
.alist { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.6rem; }
.alist h2, .alist h3 { font-size: 1.35rem; letter-spacing: -.03em; margin-bottom: .3rem; }
.alist h2 a, .alist h3 a { color: var(--ink); text-decoration: none; }
.alist h2 a:hover, .alist h3 a:hover { text-decoration: underline; text-underline-offset: .15em; }
.alist p { margin: 0; }
.alist .meta { margin-top: .5rem; }
.toc { background: var(--slip); border-radius: 10px; padding: 1rem 1.2rem; font: 400 .95rem/1.5 var(--font-ui); box-shadow: inset 0 0 0 1px var(--rule); }
.toc b { display: block; margin-bottom: .4rem; }
.toc ol { margin: 0; padding-left: 1.2rem; display: grid; gap: .25rem; }
.toc a { color: var(--ink); }

/* Explicación de cada sección: cerrada por defecto, para que se vean primero las guías */
.about { margin-top: .4rem; }
.about summary { display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; list-style: none; font: 500 .9rem/1.2 var(--font-ui); color: var(--ink-2); padding: .4rem 0; }
.about summary::-webkit-details-marker { display: none; }
.about summary::before { content: "+"; display: inline-grid; place-items: center; width: 1.2rem; height: 1.2rem; border-radius: 50%; box-shadow: inset 0 0 0 1px var(--rule); font-size: .95rem; line-height: 1; }
.about[open] summary::before { content: "–"; }
.about summary:hover { color: var(--ink); }
.about summary:focus-visible { outline: 2px solid var(--pen); outline-offset: 3px; border-radius: 4px; }
.about .lead-block { margin-top: .6rem; }

/* Artículos como tarjeta: papel de la ficha, filete dorado leve en el borde (el dorado ya es el de --hl) */
:root { --gold: 185 145 70; --gold-o: .5; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --gold: 200 160 80; --gold-o: .42; } }
:root[data-theme="dark"] { --gold: 200 160 80; --gold-o: .42; }
.alist { gap: 1.1rem; }
.alist > li > article { position: relative; background: var(--slip); border-radius: var(--r, 14px); padding: 1.3rem 1.4rem 1.4rem;
  box-shadow: inset 0 0 0 1px rgb(var(--gold) / var(--gold-o)), inset 0 1px 0 var(--edge-hi), 0 1px 2px rgb(var(--sh) / .1), 0 10px 30px -8px rgb(var(--sh) / .22);
  transition: box-shadow .16s ease-out, translate .16s ease-out; }
@media (hover: hover) {
.alist > li > article:hover { translate: 0 -2px;
  box-shadow: inset 0 0 0 1px rgb(var(--gold) / .85), inset 0 1px 0 var(--edge-hi), 0 2px 4px rgb(var(--sh) / .1), 0 16px 34px -10px rgb(var(--sh) / .3); }
}
.alist > li > article h2 a::after, .alist > li > article h3 a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.alist > li > article:has(a:focus-visible) { box-shadow: inset 0 0 0 2px rgb(var(--gold)), 0 10px 30px -8px rgb(var(--sh) / .22); }
.alist > li > article:hover h2 a, .alist > li > article:hover h3 a { text-decoration: underline; text-underline-offset: .15em; }
@media (prefers-reduced-motion: reduce) { .alist > li > article { transition: none; } .alist > li > article:hover { translate: none; } }

/* Apartados con versión corta y larga dentro de un artículo */
.num[data-total]::after { content: "/" attr(data-total); }
.step .step-head { align-items: baseline; }
.step .step-head h2 { font-size: 1.35rem; letter-spacing: -.03em; margin: 0; }
.step .seg { align-self: flex-start; }
.steps + .steps, .steps + h2, .steps + p { margin-top: 1.5rem; }

/* Página de Protégete: un bloque por tema */
.group { font-size: 1.15rem; letter-spacing: -.02em; margin: 1.8rem 0 .8rem; }
.group:first-child { margin-top: 0; }
.group a { color: var(--ink); text-decoration: none; }
.group a::after { content: " →"; color: var(--ink-2); }
.group a:hover { text-decoration: underline; text-underline-offset: .15em; }

/* Tabla comparativa dentro de un artículo: en móvil se desliza en horizontal */
.tabla { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--rule); border-radius: 4px; background: var(--paper); }
.tabla:focus-visible { outline: 2px solid var(--pen); outline-offset: 2px; }
.tabla table { border-collapse: collapse; min-width: 40rem; width: 100%; font: 400 .85rem/1.4 var(--font-ui); }
.tabla caption { text-align: left; padding: .6rem .8rem; font-weight: 600; color: var(--ink-2); caption-side: top; }
.tabla th, .tabla td { padding: .5rem .65rem; text-align: left; vertical-align: top; border-top: 1px solid var(--rule); }
.tabla thead th { border-top: 0; font-weight: 600; color: var(--ink-2); white-space: nowrap; }
.tabla tbody th { font-weight: 600; position: sticky; left: 0; background: var(--paper); box-shadow: 1px 0 0 var(--rule); }
.tabla-nota { font-size: .85rem; color: var(--ink-2); }

/* Bloque "sígueme": losa de grafito al final de cada guía */
:root { --f-bg: #2f2e2c; --f-fg: #f0e8d5; --f-fg2: #bfb5a2; --f-line: rgb(240 232 213 / .18); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --f-bg: #d9ccb0; --f-fg: #26262a; --f-fg2: #4f4a40; --f-line: rgb(38 38 42 / .22); } }
:root[data-theme="dark"] { --f-bg: #d9ccb0; --f-fg: #26262a; --f-fg2: #4f4a40; --f-line: rgb(38 38 42 / .22); }
.follow { background: var(--f-bg); color: var(--f-fg); border-radius: 14px; padding: 1.4rem 1.5rem 1.5rem;
  display: flex; flex-direction: column; gap: .9rem; box-shadow: 0 1px 2px rgb(var(--sh) / .3), 0 18px 34px -14px rgb(var(--sh) / .5); }
.follow h2, .follow h3 { margin: 0; color: var(--f-fg); font-size: 1.4rem; letter-spacing: -.03em; }
.follow p { margin: 0; color: var(--f-fg); font-size: 1rem; line-height: 1.6; }
.follow .nets { display: flex; flex-wrap: wrap; gap: .5rem; }
.follow .nets a { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none;
  font: 500 .9rem/1 var(--font-ui); color: var(--f-fg); background: transparent; border-radius: 10px;
  padding: .7rem .95rem; box-shadow: inset 0 0 0 1px var(--f-line);
  transition: box-shadow .12s ease-out, translate .12s ease-out; }
.follow .nets a:hover { box-shadow: inset 0 0 0 1px var(--f-fg); }
.follow .nets a:active { translate: 0 1px; }
.follow .nets svg { width: 1.15rem; height: 1.15rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.follow .foot-note { color: var(--f-fg2); font-size: .88rem; }
.follow .give { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem .7rem; padding-top: .9rem; box-shadow: inset 0 1px 0 var(--f-line); }
.follow .give a, .follow .give b { display: inline-flex; align-items: center; gap: .45rem; font: 500 .92rem/1.3 var(--font-ui); color: var(--f-fg); text-underline-offset: .2em; }
.follow .give svg { width: 1.05rem; height: 1.05rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.toast { position: fixed; right: max(1rem, env(safe-area-inset-right)); bottom: max(1rem, env(safe-area-inset-bottom)); z-index: 50;
  width: min(23rem, calc(100vw - 2rem)); gap: .7rem; padding: 1.15rem 1.25rem 1.2rem; border-radius: 14px;
  box-shadow: inset 0 0 0 1px rgb(var(--gold, 185 145 70) / .5), 0 2px 4px rgb(var(--sh) / .2), 0 22px 44px -14px rgb(var(--sh) / .6);
  opacity: 0; translate: 0 14px; transition: opacity .28s cubic-bezier(.3, 0, .2, 1), translate .28s cubic-bezier(.3, 0, .2, 1); }
.toast[hidden] { display: none; }
.toast.on { opacity: 1; translate: 0 0; }
.toast.going { transition: opacity .4s ease-in, translate .42s cubic-bezier(.5, 0, .2, 1), scale .42s cubic-bezier(.5, 0, .2, 1); }
.toast .t-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -.03em; padding-right: 2rem; }
.toast p { font-size: .95rem; line-height: 1.5; }
.toast .nets a { padding: .55rem .75rem; font-size: .85rem; }
.toast-close { position: absolute; top: .55rem; right: .55rem; width: 2rem; height: 2rem; display: grid; place-items: center; border: 0; border-radius: 8px;
  background: transparent; color: var(--f-fg2); cursor: pointer; transition: color .12s ease-out, background .12s ease-out; }
.toast-close:hover { color: var(--f-fg); background: var(--f-line); }
.toast-close:focus-visible { outline: 2px solid var(--f-fg); outline-offset: 1px; }
.toast-close svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.toast-bubble { position: fixed; z-index: 45; top: 4.5rem; right: 1rem; width: 2.5rem; height: 2.5rem; display: grid; place-items: center; padding: 0; border: 0; border-radius: 50%;
  background: var(--f-bg); color: var(--f-fg); cursor: pointer; opacity: 0; scale: .5;
  box-shadow: inset 0 0 0 1px rgb(var(--gold, 185 145 70) / .55), 0 2px 4px rgb(var(--sh) / .2), 0 10px 22px -8px rgb(var(--sh) / .55);
  transition: opacity .25s ease-out, scale .3s cubic-bezier(.3, 1.3, .5, 1), box-shadow .15s ease-out; }
.toast-bubble[hidden] { display: none; }
@media (max-width: 1023px) { body:has(.toast-bubble) .bar-in .mode { margin-right: 3rem; } }
.toast-bubble.on { opacity: 1; scale: 1; }
.toast-bubble:hover { box-shadow: inset 0 0 0 1px rgb(var(--gold, 185 145 70) / .9), 0 2px 4px rgb(var(--sh) / .2), 0 12px 24px -8px rgb(var(--sh) / .6); }
.toast-bubble:focus-visible { outline: 2px solid var(--f-fg); outline-offset: 2px; }
.toast-bubble svg { width: 1.2rem; height: 1.2rem; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
@media (prefers-reduced-motion: reduce) { .toast, .toast.going, .toast-bubble { transition: none; } .toast { translate: 0 0; } .toast-bubble { scale: 1; } }
@media print { .toast, .toast-bubble { display: none; } }
.follow .give span { color: var(--f-fg2); font: 400 .85rem/1.4 var(--font-ui); }

/* Móvil y tablet: zonas táctiles cómodas, textos legibles y márgenes seguros en pantallas con muesca */
@media (pointer: coarse), (max-width: 1023px) {
  .bar { padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
  .mode button { min-height: 2.25rem; padding-inline: 1rem; }
  .nav a { padding-block: .7rem; }
  .seg button, .chips button, .copy { min-height: 2.75rem; }
  .done { min-height: 2.75rem; }
  .about summary { min-height: 2.75rem; }
  .foot-links a { display: inline-block; padding: .8rem .45rem; }
  .crumb a, .inline-links a, .foot a, .small a { display: inline-block; padding-block: .55rem; }
  .tag, .status, .aff { font-size: .75rem; }
  .alist > li > article { padding: 1.1rem 1.15rem 1.2rem; }
}