/* ============================================================
   setsuna.world — base.css
   Estilos COMPARTIDOS por toda la web (home + estudio).
   Mundo: escritorio/cuaderno scrapbook Y2K claro + estrellas.
   Tokens, reset, fondo de papel, barra OS, estrellas, ventanas
   retro, footer zine y utilidades. Lo específico de cada página
   vive en home.css / estudio.css.
   ============================================================ */

:root{
  /* --- papel / tinta (home, mundo claro) --- */
  --paper:#e7e9f4;
  --paper2:#f5f6fc;
  --grid:#ccd4ee;
  --ink:#17142e;
  --ink2:#4b4668;

  /* --- acentos de marca --- */
  --blue:#2b54ff;
  --cyan:#15cdff;
  --magenta:#ff2ea6;
  --violet:#7a39ff;
  --gold:#ffb23a;
  --green:#2fe3a0;
  --dark:#0b0918;

  /* --- estudio (blanco futurista + lila/rosa) --- */
  --purple:#8a3cff;
  --lilac:#b57bff;
  --pink:#ff6ad5;

  /* --- medidas --- */
  --maxw:1200px;
  --radius:13px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

body{
  font-family:'Space Grotesk',system-ui,sans-serif;
  color:var(--ink);
  min-height:100vh;
  overflow-x:hidden;
  background:
    radial-gradient(90% 60% at 50% -8%,rgba(255,255,255,.9),transparent 60%),
    linear-gradient(var(--grid) 1px,transparent 1px) 0 0/27px 27px,
    linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/27px 27px,
    radial-gradient(130% 120% at 82% -10%,#eef0fb 0%,var(--paper) 52%,#d7dbec 100%);
}
/* grano de papel + viñeta */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.55;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E")}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(130% 110% at 50% 40%,transparent 60%,rgba(23,20,46,.14) 100%)}

a{color:inherit}
img{max-width:100%}

/* utilidad halftone (puntitos) */
.halftone{background-image:radial-gradient(rgba(23,20,46,.16) 1.1px,transparent 1.3px);background-size:7px 7px}

/* accesibilidad: foco visible */
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------------- BARRA OS (sticky) ---------------- */
.osbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;
  padding:7px 16px;background:linear-gradient(180deg,rgba(255,255,255,.9),rgba(255,255,255,.66));
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:2px solid var(--ink);
  box-shadow:0 2px 0 rgba(255,255,255,.7) inset,0 6px 18px -10px rgba(23,20,46,.5);
  font-family:'VT323',monospace;font-size:19px}
.osbar .left{display:flex;align-items:center;gap:14px}
.osbar b{font-family:'Pixelify Sans';font-size:15px;font-weight:700}
/* los dígitos en VT323 (en Pixelify el 5 se confunde con S) */
.osbar b .num{font-family:'VT323',monospace;font-size:19px;font-weight:400;letter-spacing:.01em;vertical-align:-1px}
.osbar .star-ico{color:var(--magenta)}
.osbar .menu{display:flex;gap:16px}
.osbar .menu a{color:var(--ink2);text-decoration:none;border-bottom:2px solid transparent;transition:.15s}
.osbar .menu a:hover{color:var(--blue);border-bottom-color:var(--blue)}
.osbar .right{display:flex;align-items:center;gap:14px;color:var(--ink2)}
.osbar .kata{color:var(--magenta)}
.osbar .back{font-family:'Pixelify Sans';font-size:12px;color:var(--purple);text-decoration:none;
  border:2px solid var(--ink);border-radius:7px;padding:3px 8px;background:#fff;box-shadow:2px 2px 0 var(--ink)}
.osbar .back:hover{transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--ink)}
.osbar .clock{font-variant-numeric:tabular-nums}
@media(max-width:760px){.osbar .menu{display:none}.osbar{font-size:17px}}

/* ---------------- ESTRELLAS firma ---------------- */
.star{position:absolute;z-index:3;pointer-events:none;filter:drop-shadow(0 3px 6px rgba(23,20,46,.25))}
.tw{animation:tw 3.4s ease-in-out infinite}
.tw.b{animation-delay:1s}.tw.c{animation-delay:1.9s}
@keyframes tw{0%,100%{transform:scale(1) rotate(0);opacity:.95}50%{transform:scale(1.16) rotate(10deg);opacity:1}}

/* ---------------- VENTANAS retro (chrome común) ---------------- */
.winbar{display:flex;align-items:center;gap:6px;padding:8px 11px;border-bottom:2px solid var(--ink);
  background:linear-gradient(180deg,#4f73ff,#2b54ff 55%,#6a39ff);box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}
.winbar i{width:11px;height:11px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff,#dfe6ff);box-shadow:0 1px 1px rgba(0,0,0,.25)}
.winbar b{margin-left:6px;color:#fff;font-family:'Pixelify Sans';font-size:12px;letter-spacing:.05em;text-shadow:0 1px 2px rgba(0,0,0,.35)}
.winbar .x{margin-left:auto;width:24px;height:24px;border-radius:6px;border:0;background:rgba(255,255,255,.25);
  color:#fff;font-family:'Pixelify Sans';cursor:pointer;line-height:1}
.winbar .x:hover{background:rgba(255,255,255,.4)}

/* ---------------- BOTONES / PILLS ---------------- */
.btn{display:inline-block;font-family:'Pixelify Sans';font-size:12px;color:#fff;cursor:pointer;
  background:linear-gradient(135deg,var(--lilac),var(--purple));border:0;border-radius:9px;padding:10px 14px;
  text-decoration:none;text-align:center;box-shadow:2px 3px 0 rgba(23,20,46,.35);transition:.15s}
.btn:hover{transform:translate(-1px,-2px);box-shadow:3px 5px 0 rgba(23,20,46,.35)}
.btn.ghost{background:#fff;color:var(--purple);border:2px solid var(--ink);box-shadow:2px 2px 0 var(--ink)}
.pill{display:inline-block;font-family:'Pixelify Sans';font-size:10px;color:#fff;background:var(--purple);
  border-radius:999px;padding:4px 9px}
.pill.soon{background:var(--ink2)}
.tag-soon{display:inline-block;font-family:'VT323',monospace;font-size:14px;color:var(--ink2);
  border:1.5px dashed var(--ink2);border-radius:6px;padding:1px 8px}

/* ---------------- FOOTER zine ---------------- */
.zine{margin-top:40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:2px dashed var(--ink);padding-top:22px;font-family:'VT323',monospace;font-size:19px;color:var(--ink2)}
.zine .barcode{height:36px;width:150px;background:repeating-linear-gradient(90deg,var(--ink) 0 2px,transparent 2px 4px,var(--ink) 4px 5px,transparent 5px 9px)}
.zine a{color:var(--blue);text-decoration:none;border-bottom:1.5px solid var(--blue)}
.zine a:hover{color:var(--magenta);border-bottom-color:var(--magenta)}
.zine .kata{color:var(--magenta)}

.note{margin-top:30px;text-align:center;font-size:13.5px;color:var(--ink2)}
.note b{color:var(--violet)}

/* ---------------- ZINE Y2K (sellos, duotono, grips) ----------------
   Inspirado en el collage azul: fotos de persona en duotono, sellos en
   mayúsculas, flechas de redimensionar, chips de "online". */

/* sellos en mayúsculas (callouts tipo collage) */
.stamp{position:absolute;z-index:6;font-family:'Anton',sans-serif;text-transform:uppercase;letter-spacing:.02em;line-height:.9;
  color:var(--blue);-webkit-text-stroke:1.6px #fff;paint-order:stroke fill;
  text-shadow:2px 2px 0 rgba(43,84,255,.28);transform:rotate(var(--sr,-6deg));pointer-events:none}
.stamp.pink{color:var(--magenta);text-shadow:2px 2px 0 rgba(255,46,166,.28)}
.stamp.boxed{-webkit-text-stroke:0;text-shadow:none;border:2.5px solid currentColor;border-radius:5px;
  padding:3px 9px;background:rgba(255,255,255,.72)}

/* chip "online" estilo mensajería */
.status-chip{display:inline-flex;align-items:center;gap:7px;font-family:'VT323',monospace;font-size:16px;color:var(--ink);
  background:#fff;border:2px solid var(--ink);border-radius:999px;padding:3px 11px 3px 9px;box-shadow:2px 2px 0 var(--ink)}
.status-chip .dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 7px var(--green)}

/* duotono azul para fotos de PERSONA (el entorno va en color; las personas, en zine azul) */
.duotone{filter:url(#duotone-blue)}

/* flecha-grip de redimensionar en la esquina de las ventanas retro */
.resize{position:absolute;right:5px;bottom:5px;width:15px;height:15px;opacity:.45;pointer-events:none;color:var(--ink2)}

/* ---------------- REVEAL al hacer scroll ----------------
   Solo se activa con JS (clase .js-reveal en <html>); sin JS todo
   se ve normal. Respeta prefers-reduced-motion. */
.js-reveal .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js-reveal .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js-reveal .reveal{opacity:1;transform:none;transition:none}}

/* ---------------- TOAST (avisos "próximamente") ---------------- */
.toast{position:fixed;left:50%;bottom:24px;z-index:90;transform:translateX(-50%) translateY(150%);
  max-width:92vw;display:flex;align-items:center;gap:10px;padding:12px 16px;border:2px solid var(--ink);border-radius:12px;
  background:#fff;box-shadow:5px 6px 0 var(--ink);font-family:'Space Grotesk',sans-serif;font-size:14px;
  transition:transform .26s ease;pointer-events:none}
.toast.on{transform:translateX(-50%) translateY(0)}
.toast .s{color:var(--magenta);font-size:18px}