/* =========================================================================
   Sin Envejecer — design system
   Aubergine + warm gold + ivory. Editorial-meets-game.
   ========================================================================= */

:root {
  /* color */
  --c-bg: #14080f;
  --c-bg-deep: #0a0408;
  --c-bg-soft: #1f1018;
  --c-ivory: #f7f1e6;
  --c-ivory-dim: #d8cfc0;
  --c-gold: #d4a574;
  --c-gold-bright: #f1c891;
  --c-rose: #f4b6b6;
  --c-rose-deep: #c97a7a;
  --c-plum: #6e2a4a;
  --c-line: rgba(247, 241, 230, 0.14);
  --c-line-strong: rgba(247, 241, 230, 0.32);
  --c-glass: rgba(247, 241, 230, 0.04);
  --c-glass-hi: rgba(247, 241, 230, 0.08);
  --c-ok: #8fd6a8;
  --c-warn: #f1c891;

  /* type */
  --f-display: "Cormorant Garamond", "Playfair Display", ui-serif, Georgia, serif;
  --f-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --f-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* fluid scale */
  --fs-hero: clamp(3rem, 9vw, 7.5rem);
  --fs-h1: clamp(2.25rem, 5.5vw, 4.5rem);
  --fs-h2: clamp(1.75rem, 3.5vw, 2.75rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.625rem);
  --fs-lead: clamp(1.125rem, 1.4vw, 1.375rem);
  --fs-body: clamp(1rem, 1.1vw, 1.0625rem);
  --fs-small: 0.8125rem;
  --fs-micro: 0.6875rem;

  /* space */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4.5rem;
  --s-9: 7rem;
  --s-10: 10rem;

  /* radius */
  --r-1: 4px;
  --r-2: 10px;
  --r-3: 18px;
  --r-4: 28px;
  --r-pill: 999px;

  /* shadow */
  --sh-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
  --sh-glow: 0 0 80px -10px rgba(212, 165, 116, 0.45);

  /* motion */
  --e-out: cubic-bezier(0.16, 1, 0.3, 1);
  --e-in: cubic-bezier(0.7, 0, 0.84, 0);
  --e-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --d-fast: 180ms;
  --d-mid: 420ms;
  --d-slow: 900ms;

  /* layout */
  --col: min(1240px, 92vw);
  --col-narrow: min(720px, 92vw);
  --col-wide: min(1440px, 96vw);
}

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background: var(--c-bg-deep);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--f-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--c-ivory);
  background: var(--c-bg);
  background-image:
    radial-gradient(60vw 50vh at 80% -10%, rgba(212, 165, 116, 0.18), transparent 60%),
    radial-gradient(70vw 60vh at -10% 90%, rgba(110, 42, 74, 0.35), transparent 60%),
    linear-gradient(180deg, var(--c-bg-deep), var(--c-bg));
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

/* grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.5'/></svg>");
}

img, video, svg { max-width: 100%; height: auto; display: block; }

a {
  color: var(--c-gold-bright);
  text-decoration: none;
  text-underline-offset: 4px;
  transition: color var(--d-fast) var(--e-soft);
}
a:hover { color: var(--c-rose); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 var(--s-4);
  color: var(--c-ivory);
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; letter-spacing: -0.01em; }
p  { margin: 0 0 var(--s-4); max-width: 68ch; }

.lead {
  font-family: var(--f-display);
  font-size: var(--fs-lead);
  font-style: italic;
  font-weight: 400;
  color: var(--c-ivory-dim);
  max-width: 50ch;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: var(--fs-micro);
  color: var(--c-gold);
  font-weight: 600;
}

mark, .hl {
  background: linear-gradient(120deg, transparent 0 30%, rgba(212, 165, 116, 0.28) 30% 70%, transparent 70%);
  color: inherit;
  padding: 0 0.15em;
}

hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-line-strong), transparent);
  margin: var(--s-7) 0;
}

::selection { background: var(--c-gold); color: var(--c-bg-deep); }

/* =========================================================================
   Layout primitives
   ========================================================================= */
.wrap { width: var(--col); margin: 0 auto; }
.wrap-narrow { width: var(--col-narrow); margin: 0 auto; }
.wrap-wide { width: var(--col-wide); margin: 0 auto; }

section { padding: var(--s-9) 0; position: relative; }
section.tight { padding: var(--s-7) 0; }

.grid { display: grid; gap: var(--s-5); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.stack > * + * { margin-top: var(--s-4); }
.stack-lg > * + * { margin-top: var(--s-6); }

/* =========================================================================
   Nav
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  background: rgba(20, 8, 15, 0.55);
  border-bottom: 1px solid var(--c-line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-3) 0;
  gap: var(--s-5);
}
.brand {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--c-ivory);
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}
.brand .dot {
  width: 0.5rem; height: 0.5rem; border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 16px var(--c-gold);
  animation: pulse 3s var(--e-soft) infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.nav-links { display: flex; gap: var(--s-5); list-style: none; padding: 0; margin: 0; align-items: center; }
.nav-links a {
  color: var(--c-ivory-dim);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  position: relative;
  padding: var(--s-2) 0;
}
.nav-links a:hover { color: var(--c-ivory); text-decoration: none; }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--c-gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--d-mid) var(--e-out);
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-progress {
  font-size: var(--fs-micro); color: var(--c-gold);
  letter-spacing: 0.18em; text-transform: uppercase;
  padding: var(--s-2) var(--s-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
}
.nav-burger {
  display: none;
  background: none; border: 1px solid var(--c-line);
  color: var(--c-ivory); border-radius: var(--r-pill);
  padding: var(--s-2) var(--s-4); cursor: pointer;
  font-family: inherit; font-size: 0.85rem;
}

@media (max-width: 820px) {
  .nav-links { display: none; }
  .nav-burger { display: inline-flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--c-bg-deep);
    padding: var(--s-5) var(--s-5); gap: var(--s-4);
    border-bottom: 1px solid var(--c-line);
  }
}

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-pill);
  font-family: var(--f-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid var(--c-line-strong);
  background: transparent;
  color: var(--c-ivory);
  transition: all var(--d-fast) var(--e-soft);
  position: relative;
  overflow: hidden;
}
.btn:hover { border-color: var(--c-gold); color: var(--c-gold-bright); text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--c-gold), var(--c-gold-bright));
  color: var(--c-bg-deep);
  border-color: transparent;
  font-weight: 600;
}
.btn-primary:hover {
  color: var(--c-bg-deep);
  box-shadow: var(--sh-glow);
  filter: brightness(1.06);
}
.btn-ghost { border-color: var(--c-line); }
.btn .arrow {
  transition: transform var(--d-fast) var(--e-soft);
  display: inline-block;
}
.btn:hover .arrow { transform: translateX(4px); }

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  position: relative;
  min-height: 92vh;
  padding: var(--s-10) 0 var(--s-9);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(40vw 40vw at 70% 30%, rgba(244, 182, 182, 0.18), transparent 70%),
    radial-gradient(50vw 50vw at 20% 70%, rgba(212, 165, 116, 0.25), transparent 70%),
    conic-gradient(from 220deg at 50% 50%, transparent 0deg, rgba(110, 42, 74, 0.4) 90deg, transparent 180deg);
  filter: blur(40px);
  animation: drift 28s linear infinite;
}
@keyframes drift {
  0% { transform: rotate(0deg) scale(1.05); }
  50% { transform: rotate(180deg) scale(1.15); }
  100% { transform: rotate(360deg) scale(1.05); }
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: var(--fs-hero);
  line-height: 0.95;
  margin-bottom: var(--s-5);
}
.hero h1 .italic {
  font-style: italic;
  color: var(--c-gold-bright);
  font-weight: 400;
}
.strike {
  position: relative;
  display: inline-block;
}
.strike::after {
  content: "";
  position: absolute; left: -3%; right: -3%; top: 56%;
  height: 0.08em;
  background: var(--c-rose);
  transform: rotate(-3deg) scaleX(0);
  transform-origin: left;
  animation: strike 1.4s var(--e-out) 0.8s forwards;
}
@keyframes strike { to { transform: rotate(-3deg) scaleX(1); } }

.hero .lead { font-size: clamp(1.25rem, 1.7vw, 1.625rem); max-width: 38ch; }

.hero-cta { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-top: var(--s-6); }

.hero-meta {
  display: flex;
  gap: var(--s-6);
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--c-line);
  flex-wrap: wrap;
}
.hero-meta .metric { display: flex; flex-direction: column; gap: var(--s-1); }
.hero-meta .metric .n {
  font-family: var(--f-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--c-gold-bright);
}
.hero-meta .metric .l {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-ivory-dim);
}

/* =========================================================================
   Decade selector — the "game"
   ========================================================================= */
.decade-game {
  position: relative;
  padding: var(--s-9) 0;
}
.decade-game-header {
  display: flex; align-items: end; justify-content: space-between; gap: var(--s-5);
  margin-bottom: var(--s-6); flex-wrap: wrap;
}

.decade-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--s-3);
  padding: var(--s-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-4);
  background: var(--c-glass);
  backdrop-filter: blur(20px);
}

.decade-card {
  position: relative;
  padding: var(--s-6) var(--s-4);
  border-radius: var(--r-3);
  background: linear-gradient(170deg, var(--c-bg-soft), var(--c-bg-deep));
  border: 1px solid var(--c-line);
  cursor: pointer;
  transition: all var(--d-mid) var(--e-out);
  overflow: hidden;
  text-align: left;
  color: inherit;
  font: inherit;
  display: flex; flex-direction: column; gap: var(--s-2);
  min-height: 220px;
}
.decade-card::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, transparent, rgba(212, 165, 116, 0.5));
  opacity: 0;
  z-index: -1;
  transition: opacity var(--d-mid);
}
.decade-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: var(--c-gold);
  box-shadow: var(--sh-glow);
}
.decade-card:hover::before { opacity: 1; }
.decade-card.active {
  border-color: var(--c-gold);
  background: linear-gradient(170deg, rgba(212, 165, 116, 0.15), var(--c-bg-deep));
}

.decade-card .age {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-style: italic;
  color: var(--c-gold-bright);
  line-height: 1;
}
.decade-card .label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-micro);
  color: var(--c-ivory-dim);
}
.decade-card .tag {
  font-family: var(--f-display);
  font-style: italic;
  color: var(--c-ivory);
  font-size: 1.125rem;
}
.decade-card .meta {
  margin-top: auto;
  display: flex; gap: var(--s-3);
  font-size: var(--fs-micro);
  color: var(--c-ivory-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}
.decade-card .meta b { color: var(--c-gold-bright); font-weight: 600; }

@media (max-width: 820px) {
  .decade-track { grid-template-columns: repeat(2, 1fr); }
  .decade-card { min-height: 170px; }
}

/* Decade detail panel that opens on selection */
.decade-detail {
  margin-top: var(--s-5);
  padding: var(--s-7);
  border-radius: var(--r-4);
  background: linear-gradient(160deg, rgba(110, 42, 74, 0.25), rgba(20, 8, 15, 0.7));
  border: 1px solid var(--c-line-strong);
  display: none;
}
.decade-detail.open { display: block; animation: rise var(--d-mid) var(--e-out); }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.decade-detail h3 { color: var(--c-gold-bright); }
.decade-detail .checklist { list-style: none; padding: 0; }
.decade-detail .checklist li {
  display: flex; gap: var(--s-3); align-items: flex-start;
  padding: var(--s-3) 0;
  border-bottom: 1px dashed var(--c-line);
}
.decade-detail .checklist input { accent-color: var(--c-gold); margin-top: 0.3em; }
.decade-detail .checklist label { cursor: pointer; }

/* =========================================================================
   Pillar cards
   ========================================================================= */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-4);
}
.pillar-card {
  position: relative;
  padding: var(--s-6);
  border-radius: var(--r-3);
  background: var(--c-glass-hi);
  border: 1px solid var(--c-line);
  overflow: hidden;
  transition: all var(--d-mid) var(--e-out);
  min-height: 280px;
  display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
}
.pillar-card::before {
  content: "";
  position: absolute; top: -50%; right: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(closest-side, rgba(212, 165, 116, 0.18), transparent);
  opacity: 0; transition: opacity var(--d-slow);
  pointer-events: none;
}
.pillar-card:hover { transform: translateY(-4px); border-color: var(--c-gold); text-decoration: none; }
.pillar-card:hover::before { opacity: 1; }
.pillar-card .num {
  font-family: var(--f-display);
  font-size: 3rem;
  font-style: italic;
  color: var(--c-gold);
  line-height: 0.9;
  margin-bottom: var(--s-3);
}
.pillar-card h3 { margin-bottom: var(--s-2); }
.pillar-card .count {
  margin-top: auto;
  font-size: var(--fs-micro); text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--c-ivory-dim);
}

/* =========================================================================
   Article card
   ========================================================================= */
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: var(--s-5); }
.article-card {
  display: flex; flex-direction: column;
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--c-glass-hi);
  border: 1px solid var(--c-line);
  transition: all var(--d-mid) var(--e-out);
  text-decoration: none;
  color: inherit;
}
.article-card:hover { transform: translateY(-4px); border-color: var(--c-gold); text-decoration: none; }
.article-card .media {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--c-plum), var(--c-bg-deep));
  position: relative;
  overflow: hidden;
}
.article-card .media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--d-slow) var(--e-out); }
.article-card:hover .media img { transform: scale(1.08); }
.article-card .media .tag {
  position: absolute; top: var(--s-3); left: var(--s-3);
  background: var(--c-bg-deep); color: var(--c-gold);
  padding: var(--s-1) var(--s-3); border-radius: var(--r-pill);
  font-size: var(--fs-micro); letter-spacing: 0.15em; text-transform: uppercase;
}
.article-card .body { padding: var(--s-5); }
.article-card h3 { font-size: 1.375rem; }
.article-card .read-time {
  font-size: var(--fs-micro); letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--c-ivory-dim); margin-top: var(--s-3);
}

/* =========================================================================
   Article reading layout
   ========================================================================= */
.article-hero {
  padding: var(--s-9) 0 var(--s-7);
  border-bottom: 1px solid var(--c-line);
  position: relative;
}
.article-hero .breadcrumb {
  display: flex; gap: var(--s-2); font-size: var(--fs-micro);
  text-transform: uppercase; letter-spacing: 0.18em; color: var(--c-ivory-dim);
  margin-bottom: var(--s-5);
}
.article-hero h1 { max-width: 22ch; margin-bottom: var(--s-5); }
.article-hero .lead { max-width: 56ch; }
.article-hero .byline {
  display: flex; gap: var(--s-4); margin-top: var(--s-6);
  font-size: var(--fs-small); color: var(--c-ivory-dim);
  flex-wrap: wrap; align-items: center;
}
.article-hero .byline b { color: var(--c-gold-bright); font-weight: 500; }

.article-cover {
  margin: 0 0 var(--s-7);
  border-radius: var(--r-4);
  overflow: hidden;
  aspect-ratio: 21/9;
  background: var(--c-plum);
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; }

.prose {
  width: var(--col-narrow);
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.75;
}
.prose h2 {
  margin: var(--s-8) 0 var(--s-4);
  padding-top: var(--s-3);
  scroll-margin-top: 100px;
}
.prose h3 {
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0;
  margin: var(--s-6) 0 var(--s-3);
  color: var(--c-gold-bright);
}
.prose p { color: var(--c-ivory-dim); }
.prose p strong { color: var(--c-ivory); font-weight: 600; }
.prose ul, .prose ol { color: var(--c-ivory-dim); padding-left: 1.25em; max-width: 68ch; }
.prose li { margin-bottom: var(--s-3); }
.prose blockquote {
  border-left: 3px solid var(--c-gold);
  padding: var(--s-3) var(--s-5);
  margin: var(--s-6) 0;
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--c-ivory);
  line-height: 1.35;
  background: rgba(212, 165, 116, 0.06);
  border-radius: 0 var(--r-2) var(--r-2) 0;
}
.prose blockquote cite { display: block; margin-top: var(--s-3); font-size: var(--fs-small); font-style: normal; color: var(--c-ivory-dim); letter-spacing: 0.1em; text-transform: uppercase; }

.callout {
  margin: var(--s-6) 0;
  padding: var(--s-5);
  border-radius: var(--r-3);
  border: 1px solid var(--c-line-strong);
  background: linear-gradient(140deg, rgba(212, 165, 116, 0.1), transparent);
}
.callout .eyebrow { margin-bottom: var(--s-2); display: block; }
.callout p:last-child { margin-bottom: 0; }

.tldr {
  border-radius: var(--r-3);
  background: rgba(244, 182, 182, 0.07);
  border: 1px solid rgba(244, 182, 182, 0.25);
  padding: var(--s-5);
  margin: 0 0 var(--s-6);
}
.tldr h4 {
  font-family: var(--f-body);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: var(--fs-micro);
  color: var(--c-rose);
  margin-bottom: var(--s-3);
}
.tldr ul { margin: 0; padding-left: 1.2em; }
.tldr li { color: var(--c-ivory); margin-bottom: var(--s-2); }

/* TOC sticky */
.layout-with-toc {
  display: grid;
  grid-template-columns: 1fr min(720px, 90vw) 1fr;
  gap: var(--s-5);
  align-items: start;
}
.toc {
  position: sticky;
  top: 100px;
  font-size: var(--fs-small);
  border-left: 1px solid var(--c-line);
  padding: var(--s-2) 0 var(--s-2) var(--s-4);
  max-height: calc(100vh - 140px);
  overflow-y: auto;
  align-self: start;
  grid-column: 3;
  grid-row: 1;
}
.toc h5 {
  font-family: var(--f-body); font-size: var(--fs-micro);
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--c-ivory-dim); margin-bottom: var(--s-3);
}
.toc ol { list-style: none; counter-reset: t; padding: 0; margin: 0; }
.toc li { counter-increment: t; margin-bottom: var(--s-2); }
.toc a { color: var(--c-ivory-dim); display: block; padding: var(--s-1) 0; }
.toc a::before { content: counter(t, decimal-leading-zero); margin-right: 0.5em; color: var(--c-gold); font-family: var(--f-mono); font-size: 0.75em; }
.toc a:hover, .toc a.active { color: var(--c-gold-bright); text-decoration: none; }
.layout-with-toc .prose { grid-column: 2; width: auto; }
@media (max-width: 1100px) {
  .layout-with-toc { grid-template-columns: 1fr; }
  .toc { display: none; }
  .layout-with-toc .prose { grid-column: 1; }
}

/* read progress bar */
.read-progress {
  position: fixed; left: 0; top: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--c-gold), var(--c-rose));
  z-index: 200; transition: width 80ms linear;
}

/* =========================================================================
   FAQ accordion (AEO)
   ========================================================================= */
.faq { border-top: 1px solid var(--c-line); }
.faq details {
  border-bottom: 1px solid var(--c-line);
  padding: var(--s-5) 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; gap: var(--s-4);
  font-family: var(--f-display);
  font-size: clamp(1.25rem, 2vw, 1.625rem);
  color: var(--c-ivory);
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--f-display);
  font-size: 1.75rem;
  color: var(--c-gold);
  transition: transform var(--d-mid) var(--e-out);
  flex-shrink: 0;
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding-top: var(--s-4); max-width: 70ch; color: var(--c-ivory-dim); }

/* =========================================================================
   Video / media
   ========================================================================= */
.video-frame {
  position: relative;
  aspect-ratio: 16/9;
  border-radius: var(--r-3);
  overflow: hidden;
  background: var(--c-bg-deep);
  border: 1px solid var(--c-line);
}
.video-frame iframe, .video-frame video {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.video-frame.poster::before {
  content: "▶";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--c-bg-deep);
  font-size: 1.5rem;
  width: 72px; height: 72px;
  background: var(--c-gold);
  border-radius: 50%;
  margin: auto;
  z-index: 2;
  pointer-events: none;
}

/* =========================================================================
   Sources / citations
   ========================================================================= */
.sources {
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--c-line);
  font-size: var(--fs-small);
  color: var(--c-ivory-dim);
}
.sources h4 {
  font-family: var(--f-body);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--fs-micro);
  color: var(--c-gold);
  margin-bottom: var(--s-3);
}
.sources ol { padding-left: 1.4em; }
.sources li { margin-bottom: var(--s-2); }
.sources a { color: var(--c-ivory); text-decoration: underline; text-decoration-color: var(--c-line-strong); }
.sources a:hover { text-decoration-color: var(--c-gold); }
sup.cite a {
  background: var(--c-glass-hi);
  border-radius: var(--r-pill);
  padding: 1px 6px;
  font-size: 0.7em;
  margin-left: 2px;
  color: var(--c-gold-bright);
}

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  padding: var(--s-8) 0 var(--s-5);
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-deep);
  font-size: var(--fs-small);
  color: var(--c-ivory-dim);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-7);
  margin-bottom: var(--s-7);
}
.footer h5 { font-family: var(--f-body); font-size: var(--fs-micro); text-transform: uppercase; letter-spacing: 0.18em; color: var(--c-gold); margin-bottom: var(--s-3); }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: var(--s-2); }
.footer a { color: var(--c-ivory-dim); }
.footer a:hover { color: var(--c-gold-bright); }
.footer .fine { display: flex; justify-content: space-between; padding-top: var(--s-4); border-top: 1px solid var(--c-line); flex-wrap: wrap; gap: var(--s-3); font-size: var(--fs-micro); letter-spacing: 0.1em; }
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* =========================================================================
   Coming soon
   ========================================================================= */
.cs-shell { min-height: 100vh; display: grid; place-items: center; text-align: center; padding: var(--s-7) 0; }
.cs-shell h1 { font-size: clamp(2.5rem, 7vw, 5.5rem); }
.cs-shell .eyebrow { display: block; margin-bottom: var(--s-3); }
.cs-bell {
  display: inline-flex; gap: var(--s-2); margin-top: var(--s-4);
  background: var(--c-glass); padding: 4px; border-radius: var(--r-pill);
  border: 1px solid var(--c-line);
}
.cs-bell input {
  background: transparent; border: 0; color: var(--c-ivory);
  padding: var(--s-3) var(--s-4); min-width: min(260px, 60vw);
  font: inherit; outline: 0;
}
.cs-progress {
  margin-top: var(--s-6);
  display: flex; justify-content: center; gap: var(--s-2);
}
.cs-progress span {
  display: block; width: 18px; height: 4px; border-radius: 4px;
  background: var(--c-line);
}
.cs-progress span.on { background: var(--c-gold); }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--s-4); margin-top: var(--s-6); text-align: left; }
.related-grid a {
  padding: var(--s-4);
  border: 1px solid var(--c-line);
  border-radius: var(--r-3);
  color: var(--c-ivory);
}
.related-grid a:hover { border-color: var(--c-gold); text-decoration: none; }
.related-grid b { display: block; font-family: var(--f-display); font-style: italic; font-size: 1.25rem; color: var(--c-gold-bright); margin-bottom: var(--s-1); }

/* =========================================================================
   Ritual builder (game)
   ========================================================================= */
.ritual {
  border-radius: var(--r-4);
  padding: var(--s-6);
  background: linear-gradient(160deg, rgba(212, 165, 116, 0.08), rgba(110, 42, 74, 0.18));
  border: 1px solid var(--c-line-strong);
}
.ritual-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--s-3); margin-bottom: var(--s-5); }
.ritual-streak {
  font-family: var(--f-display); font-style: italic;
  font-size: 1.5rem; color: var(--c-gold-bright);
}
.ritual-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--s-3); list-style: none; padding: 0; }
.ritual-list li {
  position: relative;
  padding: var(--s-4);
  border-radius: var(--r-3);
  background: var(--c-bg-deep);
  border: 1px solid var(--c-line);
  cursor: pointer;
  transition: all var(--d-fast) var(--e-soft);
  display: flex; gap: var(--s-3); align-items: center;
}
.ritual-list li:hover { border-color: var(--c-gold); transform: translateY(-2px); }
.ritual-list li.done {
  background: linear-gradient(135deg, rgba(212, 165, 116, 0.25), rgba(244, 182, 182, 0.15));
  border-color: var(--c-gold);
  color: var(--c-ivory);
}
.ritual-list li.done::after {
  content: "✓"; position: absolute; top: var(--s-2); right: var(--s-3);
  color: var(--c-gold-bright); font-weight: bold;
}
.ritual-emoji { font-size: 1.5rem; }
.ritual-label { font-size: var(--fs-small); }

/* =========================================================================
   Animations / utility
   ========================================================================= */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 800ms var(--e-out), transform 800ms var(--e-out); }
.reveal.in { opacity: 1; transform: translateY(0); }

.text-center { text-align: center; }
.dim { color: var(--c-ivory-dim); }
.gold { color: var(--c-gold-bright); }
.italic { font-style: italic; }

.kicker {
  display: inline-flex; gap: var(--s-2); align-items: center;
  padding: var(--s-1) var(--s-3);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-pill);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--s-4);
}
.kicker .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--c-rose);
  animation: pulse 2s infinite;
}

/* viral seed article callout */
.viral-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border-radius: var(--r-4);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-plum), var(--c-bg-deep));
  border: 1px solid var(--c-line-strong);
}
.viral-card .copy { padding: var(--s-7); }
.viral-card .media {
  background-image:
    radial-gradient(circle at 30% 30%, var(--c-rose), transparent 50%),
    radial-gradient(circle at 80% 70%, var(--c-gold), transparent 50%),
    var(--c-plum);
  min-height: 360px;
  position: relative;
}
.viral-card .media::before {
  content: "“Aún no he terminado.”";
  position: absolute; bottom: var(--s-5); left: var(--s-5); right: var(--s-5);
  font-family: var(--f-display); font-style: italic;
  font-size: 1.5rem; color: var(--c-ivory);
}
@media (max-width: 780px) { .viral-card { grid-template-columns: 1fr; } }