/* ===== SUNA · estilos globales =====
   Regla de color 60/30/10: base (negro/grises) 60%, color del proyecto 30%, contraste 10%.
   Cada página fija su tema con <body data-theme="suna|grafie|kronos"> */
:root {
  --bg: #0e0e0e; --surface: #181818; --surface-2: #232323;
  --text: #f1f1ee; --muted: #a2a29c; --line: #2c2c2c;
  --accent: #d4ff4f;        /* color del proyecto (SUNA: provisional) */
  --contrast: #ffffff;      /* contraste */
  --on-accent: #0e0e0e;
  --paper: #f1f1ee; --ink: #0e0e0e;
  --f-display: "Bodoni Moda", "Playfair Display", Georgia, serif;
  --f-body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-accent: "Space Grotesk", var(--f-body);
  --radius: 14px;
  --gutter: clamp(18px, 5vw, 64px);
  --header-h: 72px;
}
:root[data-theme="grafie"] {
  --bg: #0a0a0a; --surface: #15120e; --surface-2: #211c15; --line: #2b2419;
  --accent: #f7941d; --contrast: #13a37f; --on-accent: #0a0a0a;
  --paper: #fff4e0; --ink: #0a0a0a;
  --f-display: "Fredoka", "Sora", system-ui, sans-serif; --f-body: "Sora", system-ui, sans-serif; --f-accent: "Sora", sans-serif;
  --radius: 26px;
}
:root[data-theme="kronos"] {
  --bg: #15110c; --surface: #1e1912; --surface-2: #2a231a; --line: #3a3124;
  --text: #f4ecd8; --muted: #b3a88f;
  --accent: #e3874f; --contrast: #9fbf55; --on-accent: #15110c;
  --paper: #f4ecd8; --ink: #15110c;
  --f-display: "Anton", "Oswald", Impact, sans-serif; --f-body: "EB Garamond", Georgia, serif; --f-accent: "Caveat", cursive;
  --radius: 3px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 10px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--f-body); font-size: 1.05rem; line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden; padding-top: var(--header-h); }
:root[data-theme="kronos"] body { font-size: 1.2rem; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 700; line-height: 1.02; margin: 0 0 .5em; letter-spacing: -.01em; }
:root[data-theme="kronos"] h1, :root[data-theme="kronos"] h2, :root[data-theme="kronos"] h3 { font-weight: 400; text-transform: uppercase; letter-spacing: .01em; }
h1 { font-size: clamp(2.8rem, 9vw, 8rem); } h2 { font-size: clamp(2rem, 5.2vw, 4rem); } h3 { font-size: clamp(1.3rem, 2.4vw, 1.8rem); }
p { margin: 0 0 1.1em; color: var(--muted); } p.lead { font-size: clamp(1.1rem, 2vw, 1.4rem); color: var(--text); max-width: 60ch; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.wrap { width: min(1280px, 100%); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(64px, 11vw, 150px) 0; position: relative; }
.eyebrow { display: inline-block; font-family: var(--f-accent); text-transform: uppercase; letter-spacing: .2em; font-size: .75rem; color: var(--accent); margin-bottom: 1rem; }
:root[data-theme="kronos"] .eyebrow { text-transform: none; letter-spacing: .02em; font-size: 1.5rem; }
.pending { outline: 2px dashed color-mix(in srgb, var(--accent) 60%, transparent); outline-offset: 4px; }   /* marca los textos provisionales */

/* ----- Cabecera: fondo sólido con borde inferior negro de 3px ----- */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h); background: var(--paper); color: var(--ink); border-bottom: 3px solid #000; display: flex; align-items: center; justify-content: space-between; padding: 0 var(--gutter); transition: transform .35s; }
.site-header.hide { transform: translateY(-100%); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--on-accent); padding: .5em 1em; z-index: 200; }
.skip:focus { left: 8px; }
.brand { display: flex; align-items: center; gap: 16px; height: 100%; }
.brand img { height: 40px; width: auto; }
.brand-chip { display: inline-flex; align-items: center; gap: 8px; font-family: var(--f-accent); font-weight: 600; font-size: .85rem; padding: .3em .8em .3em .4em; border: 2px solid #000; border-radius: 999px; }
.brand-chip img { height: 22px; width: 22px; object-fit: contain; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: clamp(14px, 2.6vw, 38px); align-items: center; }
.main-nav a { font-family: var(--f-accent); font-weight: 600; font-size: .95rem; position: relative; padding: .4em 0; display: inline-block; }
.main-nav > ul > li > a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: #000; transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.main-nav > ul > li > a:hover::after, .main-nav a[aria-current]::after { transform: scaleX(1); }
.has-sub { position: relative; }
.has-sub i { font-style: normal; font-size: .7em; }
.sub { position: absolute !important; top: 100%; left: -16px; min-width: 220px; background: var(--paper); border: 3px solid #000; flex-direction: column; align-items: stretch !important; gap: 0 !important; padding: 8px !important; opacity: 0; visibility: hidden; transform: translateY(8px); transition: .25s; }
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; }
.sub a { display: flex; align-items: center; gap: 12px; padding: .6em .8em; width: 100%; }
.sub a span { margin-right: auto; }
.mi { width: 32px; height: 32px; border-radius: 9px; flex-shrink: 0; transition: transform .3s; }
.sub a:hover .mi { transform: rotate(-8deg) scale(1.12); }
.foot-proj { display: inline-flex; align-items: center; gap: 10px; } .foot-proj img { width: 22px; height: 22px; border-radius: 6px; }
.sub a:hover { background: var(--accent); color: var(--on-accent); }
.sub small { font-weight: 400; opacity: .7; }
/* Barra siempre visible (sin botón de menú): en pantallas pequeñas los enlaces se compactan */
@media (max-width: 900px) {
  .main-nav ul { gap: 16px; } .main-nav a { font-size: .88rem; }
  .sub { left: auto; right: -8px; }
  .has-sub.open .sub { opacity: 1; visibility: visible; transform: none; }
}
@media (max-width: 560px) {
  :root { --header-h: 60px; }
  .site-header { padding: 0 12px; gap: 10px; }
  .brand { gap: 8px; } .brand img { height: 26px; }
  .brand-chip { font-size: 0; padding: .2em; gap: 0; border-width: 2px; } .brand-chip img { width: 22px; height: 22px; }
  .main-nav ul { gap: 11px; } .main-nav a { font-size: .74rem; padding: 1em 0; white-space: nowrap; }   /* más alto para tocar con el dedo */
  .foot-proj { padding: .5em 0; }
  .has-sub { position: static; }
  .sub { position: fixed !important; top: var(--header-h); left: 10px; right: 10px; min-width: 0; }
  .sub a { font-size: 1rem; }
}

/* ----- Botones ----- */
.btn { display: inline-flex; align-items: center; gap: .6em; padding: .95em 1.7em; border-radius: 999px; background: var(--accent); color: var(--on-accent); font-family: var(--f-accent); font-weight: 700; font-size: .95rem; border: 2px solid var(--accent); cursor: pointer; transition: transform .25s, box-shadow .25s, background .25s, color .25s; }
:root[data-theme="kronos"] .btn { border-radius: 2px; text-transform: uppercase; letter-spacing: .06em; font-family: var(--f-display); font-weight: 400; }
.btn:hover { transform: scale(1.04); box-shadow: 0 10px 0 -4px rgba(0,0,0,.4); }
.btn.ghost { background: transparent; color: var(--text); border-color: color-mix(in srgb, var(--text) 40%, transparent); }
.btn.ghost:hover { background: var(--text); color: var(--bg); }
.btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.8rem; }

/* ----- Animaciones de scroll ----- */
.reveal { opacity: 0; transform: translateY(46px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0s); }
.reveal.left { transform: translateX(-60px); } .reveal.right { transform: translateX(60px); } .reveal.zoom { transform: scale(.9); }
.reveal.in { opacity: 1; transform: none; }
.split .w { display: inline-block; overflow: hidden; vertical-align: top; }
.split .w > span { display: inline-block; transform: translateY(110%); transition: transform .9s cubic-bezier(.2,.8,.2,1); transition-delay: calc(var(--i) * 70ms); }
.in .split .w > span, .split.in .w > span { transform: none; }
.marquee { overflow: hidden; display: flex; user-select: none; }
.marquee-track { display: flex; flex-shrink: 0; gap: 2.5rem; padding-right: 2.5rem; animation: marquee var(--t, 30s) linear infinite; align-items: center; }
.marquee.rev .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-100%); } }
.page-curtain { position: fixed; inset: 0; z-index: 300; background: var(--accent); transform: translateY(100%); pointer-events: none; transition: transform .6s cubic-bezier(.7,0,.2,1); }
.page-curtain.on { transform: none; }

/* ----- Libros 3D ----- */
.book3d { --bw: 260px; --th: 30px; position: relative; width: var(--bw); aspect-ratio: var(--ar, .785); perspective: 1400px; cursor: grab; touch-action: pan-y; margin: 0 auto; -webkit-tap-highlight-color: transparent; }
.book3d:active { cursor: grabbing; }
.book3d .inner { position: absolute; inset: 0; transform-style: preserve-3d; will-change: transform; }
.book3d .face { position: absolute; backface-visibility: hidden; -webkit-backface-visibility: hidden; background-size: cover; background-position: center; background-color: #222; }
.book3d .front, .book3d .back { inset: 0; border-radius: 2px 6px 6px 2px; box-shadow: inset 4px 0 8px -4px rgba(0,0,0,.5); }
.book3d .front { transform: translateZ(calc(var(--th) / 2)); }
.book3d .back { transform: rotateY(180deg) translateZ(calc(var(--th) / 2)); }
.book3d .spine { top: 0; bottom: 0; width: var(--th); left: calc(var(--th) / -2); transform: rotateY(-90deg); display: grid; place-items: center; background: linear-gradient(90deg, #000, #333 50%, #000); backface-visibility: visible; overflow: hidden; }
.book3d .spine b { transform: rotate(90deg); white-space: nowrap; font: 600 .65rem var(--f-accent); letter-spacing: .15em; text-transform: uppercase; color: #fff; }
.book3d .edge { top: 2px; bottom: 2px; width: var(--th); right: calc(var(--th) / -2); transform: rotateY(90deg); backface-visibility: visible; background: repeating-linear-gradient(90deg, #f5f1e6 0 2px, #cfc9b8 2px 3px); }
.book3d .top, .book3d .bottom { left: 2px; right: 2px; height: var(--th); backface-visibility: visible; background: repeating-linear-gradient(0deg, #f5f1e6 0 2px, #cfc9b8 2px 3px); }
.book3d .top { top: calc(var(--th) / -2); transform: rotateX(90deg); } .book3d .bottom { bottom: calc(var(--th) / -2); transform: rotateX(-90deg); }
.book3d .shine { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(255,255,255,.28), transparent 40%, rgba(0,0,0,.18)); pointer-events: none; border-radius: inherit; mix-blend-mode: soft-light; }
.book3d-shadow { position: absolute; left: 8%; right: 8%; bottom: -26px; height: 24px; background: radial-gradient(closest-side, rgba(0,0,0,.55), transparent); filter: blur(6px); pointer-events: none; }
.book3d .wip-face { display: grid; place-content: center; text-align: center; gap: 8px; background: radial-gradient(circle at 30% 20%, #3a2410, #0a0a0a 70%); color: #fff; overflow: hidden; }
.book3d .wip-face::before { content: ""; position: absolute; inset: -50%; background: repeating-conic-gradient(from 0deg, color-mix(in srgb, var(--accent) 35%, transparent) 0 8deg, transparent 8deg 24deg); animation: spin 18s linear infinite; opacity: .5; }
.book3d .wip-face > * { position: relative; }
.book3d .wip-face strong { font: 700 clamp(3rem, 9vw, 6rem)/1 var(--f-display); color: var(--accent); }
.book3d .wip-face span { font: 600 .7rem var(--f-accent); letter-spacing: .25em; text-transform: uppercase; }
@keyframes spin { to { transform: rotate(360deg); } }
.book-hint { text-align: center; font: 500 .75rem var(--f-accent); letter-spacing: .12em; color: var(--muted); margin-top: 38px; text-transform: uppercase; }

/* ----- Tarjetas y utilidades ----- */
.grid { display: grid; gap: clamp(18px, 3vw, 40px); }
.g2 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(3, 1fr); } .g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 3vw, 38px); }
.card h3 { margin-bottom: .6em; }
.tag { display: inline-block; font: 600 .7rem var(--f-accent); letter-spacing: .14em; text-transform: uppercase; padding: .35em .9em; border-radius: 999px; border: 1px solid var(--accent); color: var(--accent); }
.tag.solid { background: var(--accent); color: var(--on-accent); }

/* ----- Pie de página ----- */
.site-footer { background: #000; color: #eee; padding: 70px 0 30px; margin-top: 0; border-top: 3px solid var(--accent); }
.foot-top { display: flex; flex-wrap: wrap; gap: 30px 60px; align-items: center; justify-content: space-between; padding-bottom: 40px; border-bottom: 1px solid #2a2a2a; }
.foot-logos { display: flex; gap: 36px; align-items: center; flex-wrap: wrap; }
.foot-logos img:first-child { height: 64px; } .foot-logos img:last-child { height: 42px; }
.dedicatoria { font-family: var(--f-display); font-size: clamp(1.1rem, 2vw, 1.5rem); color: #fff; max-width: 28ch; margin: 0; }
:root[data-theme="kronos"] .dedicatoria { font-family: var(--f-accent); font-size: 1.8rem; }
.foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; padding: 40px 0; }
@media (max-width: 700px) { .foot-cols { grid-template-columns: 1fr 1fr; } }
.site-footer h4 { font: 600 .75rem var(--f-accent); letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; } .site-footer li { margin-bottom: .45em; } .site-footer a:hover { color: var(--accent); }
.socials { display: flex; gap: 10px; flex-wrap: wrap; }
.social { width: 44px; height: 44px; border-radius: 50%; border: 1px solid #444; display: grid; place-items: center; transition: .3s; }
.social svg { width: 20px; height: 20px; } .social:hover { background: var(--accent); color: #000 !important; transform: scale(1.1) rotate(-6deg); }
.foot-bottom { border-top: 1px solid #2a2a2a; padding-top: 24px; font-size: .8rem; color: #999; }
.foot-bottom p { color: #999; margin: 0 0 .4em; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal, .split .w > span { opacity: 1; transform: none; }
}


/* Logo del proyecto en la barra (sin el de SUNA) */
.brand-proj img { height: 44px; width: auto; border-radius: 9px; }
.brand-proj.kronos img { height: 64px; border-radius: 0; }
.brand-proj.web img { height: 38px; width: 38px; border-radius: 10px; }
.brand-proj b { font: 700 1.25rem var(--f-display); color: var(--ink); }
@media (max-width: 560px) { .brand-proj img { height: 34px; } .brand-proj.kronos img { height: 48px; } .brand-proj.web img { height: 30px; width: 30px; } .brand-proj b { font-size: 1rem; } }


/* Texto solo para lectores de pantalla */
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* Evita el desplazamiento lateral por elementos inclinados o más anchos que la pantalla (cinta del inicio) */
main { overflow-x: clip; }

/* Las palabras no se cortan con guion al final de la línea; los títulos y párrafos se reparten de forma pareja */
html { hyphens: none; -webkit-hyphens: none; }
h1, h2, h3, h4, .lead { text-wrap: balance; }
p, li, figcaption { text-wrap: pretty; }


/* Marcas de agua de SUNA: logo completo (.s-wm) y la S (.s-wm-s), muy tenues y detrás del contenido */
.s-wm, .s-wm-s { isolation: isolate; overflow: hidden; }
.s-wm::before, .s-wm-s::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .06; background-color: var(--accent); }
.s-wm::before { -webkit-mask: url("../assets/logos/suna-blanco.webp") no-repeat right -4% center / min(760px, 80%); mask: url("../assets/logos/suna-blanco.webp") no-repeat right -4% center / min(760px, 80%); }
.s-wm-s::before { -webkit-mask: url("../assets/logos/suna-s-blanco.png") no-repeat left -3% center / min(520px, 60%); mask: url("../assets/logos/suna-s-blanco.png") no-repeat left -3% center / min(520px, 60%); }

/* Marcas de agua por versión de logo. Uso: class="section wm wm-g wm-l"  (imagen: wm-suna|wm-s|wm-grafie|wm-g|wm-kronos|wm-k; lado: wm-l; color de contraste: wm-c) */
.wm { isolation: isolate; overflow: hidden; }
.wm::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .06; background: var(--accent); -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat; -webkit-mask-position: right -4% center; mask-position: right -4% center; -webkit-mask-size: min(720px, 76%); mask-size: min(720px, 76%); }
.wm.wm-l::before { -webkit-mask-position: left -4% center; mask-position: left -4% center; }
.wm.wm-c::before { background: var(--contrast, var(--accent)); }
.wm-suna::before { -webkit-mask-image: url("../assets/logos/suna-blanco.webp"); mask-image: url("../assets/logos/suna-blanco.webp"); }
.wm-s::before { -webkit-mask-image: url("../assets/logos/suna-s-blanco.png"); mask-image: url("../assets/logos/suna-s-blanco.png"); -webkit-mask-size: min(520px, 62%); mask-size: min(520px, 62%); }
.wm-grafie::before { -webkit-mask-image: url("../assets/logos/grafie-marca-transparente.webp"); mask-image: url("../assets/logos/grafie-marca-transparente.webp"); }
.wm-g::before { -webkit-mask-image: url("../assets/logos/grafie-g-grande.png"); mask-image: url("../assets/logos/grafie-g-grande.png"); -webkit-mask-size: min(560px, 62%); mask-size: min(560px, 62%); opacity: .07; }
.wm-kronos::before { background: #f4ecd8; -webkit-mask-image: url("../assets/logos/kronos-blanco.webp"); mask-image: url("../assets/logos/kronos-blanco.webp"); }
.wm-k::before { background: #f4ecd8; -webkit-mask-image: url("../assets/logos/kronos-letras/letra-3.png"); mask-image: url("../assets/logos/kronos-letras/letra-3.png"); -webkit-mask-size: min(560px, 60%); mask-size: min(560px, 60%); opacity: .07; }

/* En celular las marcas de agua van m�s tenues para no estorbar la lectura */
@media (max-width: 560px) { .wm::before, .s-wm::before, .s-wm-s::before { opacity: .04; } .wm-g::before, .wm-k::before { opacity: .05; } }