/* ══════════════════════════════════════════════════════
   PLAN / BRIEF — estilosplan.css
   Hojas verticales + pestaña "Índice" desplegable
   Estética FADU COME · #0B00A8 / #D9FF66 / #F5F5F5 / #111111
══════════════════════════════════════════════════════ */

:root {
  --blue:      #0B00A8;
  --blue-dark: #07007A;
  --lime:      #D9FF66;
  --white:     #F5F5F5;
  --black:     #111111;
  --gray:      #EAEAEA;
  --font-sans: 'DM Sans', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background: var(--blue);
  color: var(--white);
  overflow-x: hidden;
  scroll-snap-type: y proximity;
}

/* ════════════════════════════════════════
   HOJAS (una abajo de la otra, a pantalla completa)
════════════════════════════════════════ */
.hoja {
  position: relative;
  min-height: 100vh;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem clamp(1.5rem, 9vw, 9rem);
  overflow: hidden;
}

/* Grilla blueprint de fondo */
.hoja__grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-size: 42px 42px;
}

/* Número gigante de marca de agua */
.hoja__watermark {
  position: absolute;
  right: clamp(1rem, 4vw, 4rem);
  bottom: -2.5rem;
  z-index: 0;
  font-family: var(--font-mono);
  font-size: clamp(8rem, 26vw, 22rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

/* Contenido por encima */
.hoja__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hoja__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.4rem;
}

.hoja__title {
  font-family: var(--font-sans);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin-bottom: 1.6rem;
}

.hoja__text {
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.7;
  font-weight: 400;
  max-width: 620px;
}

.hoja__text + .hoja__text { margin-top: 1rem; }

/* ── Variante AZUL ── */
.hoja--blue { background: var(--blue); color: var(--white); }
.hoja--blue .hoja__grid {
  background-image:
    linear-gradient(rgba(217, 255, 102, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 255, 102, 0.10) 1px, transparent 1px);
}
.hoja--blue .hoja__watermark { color: rgba(255, 255, 255, 0.05); }
.hoja--blue .hoja__eyebrow { color: var(--blue); background: var(--lime); }
.hoja--blue .hoja__text { color: rgba(245, 245, 245, 0.8); }

/* ── Variante CLARA ── */
.hoja--light { background: var(--white); color: var(--black); }
.hoja--light .hoja__grid {
  background-image:
    linear-gradient(rgba(11, 0, 168, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 0, 168, 0.06) 1px, transparent 1px);
}
.hoja--light .hoja__watermark { color: rgba(11, 0, 168, 0.05); }
.hoja--light .hoja__eyebrow { color: var(--white); background: var(--blue); }
.hoja--light .hoja__title { color: var(--blue); }
.hoja--light .hoja__text { color: rgba(17, 17, 17, 0.62); }

/* ── Variante LIMA ── */
.hoja--lime { background: var(--lime); color: var(--blue); }
.hoja--lime .hoja__grid {
  background-image:
    linear-gradient(rgba(11, 0, 168, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 0, 168, 0.08) 1px, transparent 1px);
}
.hoja--lime .hoja__watermark { color: rgba(11, 0, 168, 0.07); }
.hoja--lime .hoja__eyebrow { color: var(--lime); background: var(--blue); }
.hoja--lime .hoja__title { color: var(--blue); }
.hoja--lime .hoja__text { color: rgba(11, 0, 168, 0.72); }

/* ════════════════════════════════════════
   HOJA PORTADA
════════════════════════════════════════ */
.hoja--cover .hoja__inner { max-width: 920px; }
.hoja--cover .hoja__title { font-size: clamp(3.8rem, 13vw, 9rem); }
.hoja--cover .hoja__title em { font-style: normal; color: var(--lime); }

/* Logo de portada en reemplazo del título de texto */
.hoja__title--logo { line-height: 1; }
.cover-logo {
  display: block;
  width: 920px;
  height: auto;
}

/* Portada: elementos más grandes (al haber sacado los tags) */
.hoja--cover .hoja__eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.24em;
  padding: 0.5rem 1.2rem;
  margin-bottom: 1.8rem;
}
.hoja--cover .hoja__text {
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  line-height: 1.6;
  max-width: 740px;
}

.cover-download {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 3rem;
  padding: 1.2rem 2.6rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--blue);
  background: var(--lime);
  border-radius: 999px;
  transition: transform 0.25s cubic-bezier(.34,1.56,.64,1), box-shadow 0.25s ease;
}
.cover-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(217, 255, 102, 0.3);
}

/* ════════════════════════════════════════
   LINK VOLVER (igual que en mapa)
════════════════════════════════════════ */
.back {
  position: fixed;
  top: 1.4rem;
  right: 1.6rem;
  z-index: 60;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(245, 245, 245, 0.7);
  mix-blend-mode: difference;
  transition: color 0.25s ease;
}
.back:hover { color: var(--lime); }

/* Menú debajo del volver — cada link es fixed e independiente, así
   se mezcla con el fondo de la página igual que "Volver al rótulo".
   (display:contents en el nav evita crear un stacking context que
   encerraría el mix-blend-mode y rompería el contraste adaptativo) */
.plan-nav { display: contents; }
.plan-nav__link {
  position: fixed;
  right: 1.6rem;
  z-index: 60;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: right;
  color: rgba(245, 245, 245, 0.7);
  mix-blend-mode: difference;
  transition: color 0.25s ease;
}
.plan-nav__link:nth-child(1) { top: 3.7rem; }
.plan-nav__link:nth-child(2) { top: 5.2rem; }
.plan-nav__link:nth-child(3) { top: 6.7rem; }
.plan-nav__link:hover { color: var(--lime); }

/* ════════════════════════════════════════
   PESTAÑOTA "ÍNDICE" (desplegable al hover)
════════════════════════════════════════ */
.indice {
  position: fixed;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  z-index: 80;
  display: flex;
  align-items: stretch;
  height: auto;
}

/* La pestaña (siempre visible) */
.indice__tab {
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue);
  color: var(--lime);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  padding: 1.6rem 0;
  border-radius: 0 16px 16px 0;
  box-shadow: 6px 0 24px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
}

/* El panel que se despliega */
.indice__panel {
  width: 0;
  overflow: hidden;
  background: var(--blue);
  border-radius: 0 16px 16px 0;
  box-shadow: 10px 0 40px rgba(0, 0, 0, 0.35);
  position: relative;
  z-index: 2;
  transition: width 0.42s cubic-bezier(0.4, 0, 0.2, 1),
              margin-left 0.42s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Se abre al pasar el mouse por toda la zona del índice:
   la pestaña se desliza fuera y el panel queda como tarjeta limpia
   pegada al borde, sin que la esquina redondeada choque con la lista */
.indice:hover .indice__tab,
.indice:focus-within .indice__tab {
  transform: translateX(-100%);
}
.indice:hover .indice__panel,
.indice:focus-within .indice__panel {
  width: 264px;
  margin-left: -52px;
}

.indice__panel-inner {
  width: 264px;
  padding: 1.6rem 1.4rem;
}

.indice__heading {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(217, 255, 102, 0.6);
  margin-bottom: 1rem;
}

.indice__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.indice__link {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 0.7rem 0.6rem;
  border-radius: 10px;
  text-decoration: none;
  color: rgba(245, 245, 245, 0.78);
  transition: background 0.2s ease, color 0.2s ease;
}

.indice__link:hover {
  background: rgba(217, 255, 102, 0.1);
  color: var(--white);
}

.indice__link.is-active {
  background: var(--lime);
  color: var(--blue);
}

.indice__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--lime);
  flex-shrink: 0;
}
.indice__link.is-active .indice__num { color: var(--blue); }

.indice__name {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 600px) {
  .hoja { padding: 5rem 1.5rem; }
  .indice__tab { width: 42px; font-size: 0.7rem; letter-spacing: 0.24em; }
  .indice:hover .indice__panel,
  .indice:focus-within .indice__panel { width: 216px; margin-left: -42px; }
  .indice__panel-inner { width: 216px; padding: 1.2rem 1rem; }
  .back { right: 1.2rem; }
  .plan-nav__link { right: 1.2rem; }
  .plan-nav__link:nth-child(1) { top: 3.4rem; }
  .plan-nav__link:nth-child(2) { top: 4.9rem; }
  .plan-nav__link:nth-child(3) { top: 6.4rem; }
}

/* ════════════════════════════════════════
   COMPONENTES DEL BRIEF
════════════════════════════════════════ */

/* Hojas con mucho contenido: alineadas arriba y más anchas */
.hoja--content { justify-content: flex-start; padding-top: clamp(5.5rem, 12vh, 8rem); }
.hoja--content .hoja__inner { max-width: 1040px; width: 100%; }

/* Header de hoja (eyebrow + título + intro) */
.hoja__lead {
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 0.5rem;
}

/* Fila de tags meta */
.brief-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.8rem; }
.brief-tags span {
  font-family: var(--font-mono);
  font-size: 0.58rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; padding: 0.4rem 0.85rem;
  border-radius: 999px; border: 1px solid currentColor; opacity: 0.7;
}

/* Subtítulo dentro de una hoja */
.subhead {
  font-family: var(--font-mono);
  font-size: 0.64rem; letter-spacing: 0.18em; text-transform: uppercase;
  opacity: 0.65; margin: 2rem 0 0.9rem;
}
.subhead:first-child { margin-top: 0; }

/* Grilla de cards */
.card-grid { display: grid; gap: 1rem; margin-top: 1.6rem; }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Card blanca consistente (sirve en cualquier variante de hoja) */
.brief-card {
  background: #fff; color: var(--black);
  border: 1.5px solid var(--gray); border-radius: 18px; padding: 1.3rem;
}
.brief-card__num {
  display: block; font-family: var(--font-mono);
  font-size: 0.64rem; font-weight: 700; letter-spacing: 0.1em;
  color: var(--blue); margin-bottom: 0.7rem;
}
.brief-card h3 {
  font-size: 1.02rem; font-weight: 900; letter-spacing: -0.02em;
  color: var(--blue); line-height: 1.15; margin-bottom: 0.45rem;
}
.brief-card p { font-size: 0.86rem; line-height: 1.5; color: rgba(17, 17, 17, 0.6); }

/* Lista "fuera de alcance" */
.out-list {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1.4rem; margin-top: 1.6rem; list-style: none;
}
.out-list li {
  display: flex; gap: 0.7rem; align-items: flex-start;
  font-size: 0.92rem; line-height: 1.4; padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.out-list .x {
  color: #FF3B30; font-weight: 700; flex-shrink: 0; font-family: var(--font-mono);
}

/* Personas */
.persona {
  background: #fff; color: var(--black); border: 1.5px solid var(--gray);
  border-radius: 22px; padding: 1.6rem;
}
.persona__head { display: flex; align-items: center; gap: 0.9rem; margin-bottom: 1.1rem; }
.persona__emoji { font-size: 2.1rem; line-height: 1; }
.persona__role {
  font-family: var(--font-mono); font-size: 0.56rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--blue);
}
.persona__name { font-size: 1.2rem; font-weight: 900; letter-spacing: -0.02em; color: var(--blue); }
.persona__meta { font-size: 0.8rem; color: rgba(17, 17, 17, 0.58); margin-top: 0.5rem; line-height: 1.45; }
.persona__group { margin-top: 1.1rem; }
.persona__group h4 {
  font-family: var(--font-mono); font-size: 0.56rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(17, 17, 17, 0.42); margin-bottom: 0.5rem;
}
.persona__group ul { list-style: none; }
.persona__group li {
  font-size: 0.86rem; line-height: 1.5; color: rgba(17, 17, 17, 0.7);
  padding-left: 1rem; position: relative;
}
.persona__group li::before { content: '·'; position: absolute; left: 0.15rem; color: var(--blue); font-weight: 700; }

/* Árbol de arquitectura */
.flow-tree {
  background: var(--blue-dark); color: rgba(245, 245, 245, 0.92);
  border-radius: 18px; padding: 1.4rem 1.5rem; margin-top: 1.6rem;
  overflow-x: auto; font-family: var(--font-mono);
  font-size: 0.76rem; line-height: 1.75; white-space: pre;
}
.flow-tree .accent { color: var(--lime); }

/* Cards de flujo */
.flow-card { background: #fff; color: var(--black); border: 1.5px solid var(--gray); border-radius: 16px; padding: 1.1rem; }
.flow-card span {
  font-family: var(--font-mono); font-size: 0.56rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--blue);
  display: block; margin-bottom: 0.5rem;
}
.flow-card p { font-size: 0.86rem; line-height: 1.45; color: rgba(17, 17, 17, 0.7); }

/* Tokens de color */
.tokens { background: #fff; border: 1.5px solid var(--gray); border-radius: 16px; overflow: hidden; }
.token-row {
  display: grid; grid-template-columns: 40px 1fr auto; align-items: center;
  gap: 1rem; padding: 0.7rem 1.1rem; border-bottom: 1px solid var(--gray);
}
.token-row:last-child { border-bottom: 0; }
.token-swatch { width: 26px; height: 26px; border-radius: 7px; border: 1px solid rgba(0, 0, 0, 0.12); }
.token-name, .token-hex { font-family: var(--font-mono); font-size: 0.8rem; }
.token-name { color: var(--black); }
.token-hex { color: rgba(17, 17, 17, 0.5); }

/* Cards de tipografía */
.type-card { background: #fff; color: var(--black); border: 1.5px solid var(--gray); border-radius: 16px; padding: 1.3rem; }
.type-card .sample { font-size: 2.2rem; font-weight: 900; letter-spacing: -0.03em; color: var(--blue); line-height: 1; margin-bottom: 0.8rem; }
.type-card .sample--mono { font-family: var(--font-mono); font-weight: 700; }
.type-card h3 { font-size: 1.05rem; font-weight: 900; color: var(--blue); margin-bottom: 0.3rem; }
.type-card p { font-size: 0.84rem; line-height: 1.5; color: rgba(17, 17, 17, 0.6); }
.type-card .weights { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em; color: var(--blue); margin-top: 0.6rem; }

/* Tabla de métricas */
.metric-wrap { border: 1.5px solid var(--gray); border-radius: 16px; overflow: hidden; margin-top: 1.6rem; background: #fff; }
.metric-table { width: 100%; border-collapse: collapse; }
.metric-table th, .metric-table td { text-align: left; padding: 0.75rem 1.1rem; font-size: 0.84rem; border-bottom: 1px solid var(--gray); }
.metric-table thead th { background: var(--blue); color: #fff; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; }
.metric-table td { color: rgba(17, 17, 17, 0.7); }
.metric-table td:first-child { color: var(--blue); font-weight: 700; }
.metric-table td:last-child { color: var(--blue); font-weight: 700; text-align: right; font-family: var(--font-mono); }
.metric-table tr:last-child td { border-bottom: 0; }

/* Hipótesis */
.hipotesis { background: var(--blue); color: #fff; border-radius: 20px; padding: 1.6rem 1.8rem; margin-top: 1.6rem; }
.hipotesis h4 { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--lime); margin-bottom: 0.8rem; }
.hipotesis p { font-size: clamp(1rem, 1.6vw, 1.15rem); line-height: 1.6; font-weight: 500; }

/* Quote de voz UX */
.voz-quote {
  font-family: var(--font-sans); font-style: italic; font-weight: 700;
  font-size: 1.05rem; color: var(--blue); line-height: 1.4; margin-top: 0.4rem;
}

/* Responsive de componentes */
@media (max-width: 820px) {
  .card-grid--3, .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .card-grid--2, .card-grid--3, .card-grid--4 { grid-template-columns: 1fr; }
  .out-list { grid-template-columns: 1fr; }
  .token-row { grid-template-columns: 32px 1fr auto; gap: 0.7rem; }
}