/* =========================================================
   iref — la imagen en la era de su hiperreferencialidad
   ========================================================= */

@font-face {
  font-family: 'Press Start 2P';
  src: local('Press Start 2P');
  font-display: swap;
}

:root{
  --ink:#0e0e0e;
  --paper:#eef0e6;
  --paper-dim:#e2e4d8;
  --red:#ff2b1f;
  --blue:#3aa6ff;
  --grey:#8a8a82;
  --grey-line:#c9cabd;
  --black:#000000;
  --white:#ffffff;
  --mono: 'VT323', 'Courier New', monospace;
  --pixel: 'Press Start 2P', monospace;
  --radius:0px;
  --dur:.25s;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html, body{ overflow-x:hidden; max-width:100%; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--mono);
  font-size:20px;
  line-height:1.5;
  -webkit-font-smoothing:none;
  image-rendering:pixelated;
  background-image:
    linear-gradient(var(--paper-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-dim) 1px, transparent 1px);
  background-size: 24px 24px;
}

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

::selection{ background:var(--red); color:var(--white); }

h1,h2,h3{
  font-family:var(--pixel);
  line-height:1.4;
  letter-spacing:.5px;
  margin:0 0 .6em;
}

a{ color:var(--ink); }

button{
  font-family:var(--pixel);
  cursor:pointer;
}

.wrap{
  max-width:980px;
  margin:0 auto;
  padding:0 18px;
}

.eyebrow{
  display:inline-block;
  font-family:var(--pixel);
  font-size:.6rem;
  letter-spacing:2px;
  padding:6px 10px;
  background:var(--ink);
  color:var(--paper);
  box-shadow:4px 4px 0 var(--red);
  margin-bottom:18px;
}

/* ---------- pixel box / hard shadow util ---------- */
.pixel-box{
  border:3px solid var(--ink);
  box-shadow:6px 6px 0 var(--ink);
  background:var(--paper);
}
.pixel-box.on-black{ background:var(--black); color:var(--paper); border-color:var(--paper); box-shadow:6px 6px 0 var(--red); }

/* ---------- NAV ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:var(--ink);
  border-bottom:3px solid var(--red);
}
.nav-inner{
  max-width:980px; margin:0 auto; padding:10px 18px;
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
}
.nav-brand{
  color:var(--paper);
  font-family:var(--pixel);
  font-size:.7rem;
  text-decoration:none;
  white-space:nowrap;
}
.nav-brand span{ color:var(--red); }
.nav-links{
  display:flex; gap:2px;
  list-style:none; margin:0; padding:0;
}
.nav-links a{
  display:block;
  color:var(--paper);
  text-decoration:none;
  font-family:var(--pixel);
  font-size:.55rem;
  padding:8px 10px;
  border:2px solid transparent;
}
.nav-links a:hover, .nav-links a:focus-visible{
  border-color:var(--red);
  color:var(--red);
  outline:none;
}
.nav-toggle{
  display:none;
  background:none; border:2px solid var(--paper); color:var(--paper);
  font-size:.6rem; padding:6px 10px;
}

@media (max-width:720px){
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column;
    background:var(--ink);
    border-top:2px solid var(--red);
    display:none;
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ padding:14px 18px; font-size:.6rem; }
  .nav-toggle{ display:block; }
}

/* ---------- HERO ---------- */
.hero{
  padding:64px 0 40px;
  border-bottom:3px solid var(--ink);
  overflow:hidden;
}
.hero h1{
  font-size:clamp(1.4rem, 5vw, 2.6rem);
  max-width:14ch;
  overflow-wrap:break-word;
  word-break:break-word;
  hyphens:auto;
}
.hero h1 .accent{ color:var(--red); }
.hero .sub{
  font-size:1.35rem;
  max-width:56ch;
  color:#242420;
  margin-bottom:28px;
}
.hero .actions{
  display:flex; flex-wrap:wrap; gap:14px;
  margin-bottom:34px;
}

/* ---------- PORTADA (gif) + BOCADILLO DE TEXTO ---------- */
.alien-wrap{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:18px;
  margin-bottom:28px;
  max-width:900px;
  width:100%;
}
.cover-frame{
  flex:0 0 auto;
  background:transparent;
  border:3px solid var(--ink);
  box-shadow:5px 5px 0 var(--red);
  padding:6px;
  line-height:0;
}
.cover-frame .cover-gif{
  display:block;
  width:clamp(180px, 44vw, 380px);
  height:auto;
  object-fit:contain;
  image-rendering:pixelated;
}

.speech-bubble{
  flex:1 1 260px;
  min-width:0;
  margin-left:0;
  padding:16px 18px;
  background:var(--paper);
  border:3px solid var(--ink);
  box-shadow:5px 5px 0 var(--ink);
  position:relative;
  max-width:520px;
  animation:pop-in .18s steps(4);
}
.speech-bubble::before{
  content:'';
  position:absolute;
  left:-14px; top:22px;
  width:0; height:0;
  border-top:9px solid transparent;
  border-bottom:9px solid transparent;
  border-right:14px solid var(--ink);
}
.speech-bubble::after{
  content:'';
  position:absolute;
  left:-10px; top:22px;
  width:0; height:0;
  border-top:9px solid transparent;
  border-bottom:9px solid transparent;
  border-right:12px solid var(--paper);
}
@keyframes pop-in{
  from{ opacity:0; transform:scale(.92); }
  to{ opacity:1; transform:scale(1); }
}
.speech-bubble p{ margin:0 0 14px; font-size:1.2rem; color:#1c1c18; }
.bubble-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.bubble-btn{
  font-family:var(--pixel); font-size:.55rem;
  padding:9px 12px;
  background:var(--paper);
  border:2px solid var(--ink);
  color:var(--ink);
}
.bubble-btn:hover{ box-shadow:3px 3px 0 var(--ink); }
.bubble-btn[aria-pressed="true"]{ background:var(--red); color:var(--white); }
.bubble-btn.ghost{ background:transparent; }

@media (max-width:600px){
  .alien-wrap{ flex-direction:column; max-width:100%; }
  .cover-frame{
    align-self:center;
    width:100%;
    max-width:440px;
  }
  .cover-frame .cover-gif{
    width:100%;
  }
  .speech-bubble{ margin-left:0; margin-top:14px; max-width:100%; flex:1 1 auto; }
  .speech-bubble::before, .speech-bubble::after{
    left:22px; top:-14px;
    border-right:9px solid transparent; border-left:9px solid transparent;
  }
  .speech-bubble::before{ border-bottom:14px solid var(--ink); border-top:none; }
  .speech-bubble::after{ top:-10px; border-bottom:12px solid var(--paper); border-top:none; }
}

.btn{
  display:inline-block;
  font-family:var(--pixel);
  font-size:.65rem;
  padding:14px 18px;
  text-decoration:none;
  color:var(--ink);
  background:var(--paper);
  border:3px solid var(--ink);
  border-radius:0;
  appearance:none;
  -webkit-appearance:none;
  box-shadow:5px 5px 0 var(--ink);
  transition:transform var(--dur), box-shadow var(--dur);
}
.btn:hover, .btn:focus-visible{
  transform:translate(-2px,-2px);
  box-shadow:7px 7px 0 var(--ink);
  outline:none;
}
.btn:active{ transform:translate(1px,1px); box-shadow:2px 2px 0 var(--ink); }
.btn.primary{ background:var(--red); color:var(--white); border-color:var(--ink); }
.btn.ghost{ background:transparent; }
.btn.btn-sm{
  font-size:.55rem;
  padding:9px 12px;
  box-shadow:3px 3px 0 var(--ink);
  margin-top:14px;
  border-width:2px;
}
.btn.btn-sm:hover{ box-shadow:5px 5px 0 var(--ink); }

/* marquee ticker */
.ticker{
  border:3px solid var(--ink);
  background:var(--black);
  color:var(--red);
  overflow:hidden;
  white-space:nowrap;
  padding:10px 0;
}
.ticker-track{
  display:inline-block;
  padding-left:100%;
  animation:scroll-left 34s linear infinite;
  font-family:var(--pixel);
  font-size:.62rem;
  letter-spacing:2px;
}
.ticker-track span{ margin:0 22px; }
@keyframes scroll-left{
  from{ transform:translateX(0); }
  to{ transform:translateX(-100%); }
}

/* ---------- SECTION generic ---------- */
section{ padding:56px 0; border-bottom:3px solid var(--ink); }
section:last-of-type{ border-bottom:none; }
.section-head{ margin-bottom:30px; }
.section-head .kicker{
  font-family:var(--pixel); font-size:.6rem; color:var(--red);
  display:block; margin-bottom:10px; letter-spacing:2px;
}
.section-head h2{ font-size:clamp(1.1rem,3.4vw,1.7rem); }
.section-head p{ max-width:62ch; font-size:1.2rem; color:#2b2b26; }

/* ---------- TESIS ---------- */
.tesis-grid{
  display:grid; gap:20px;
}
.tesis-card{ padding:20px; }
.tesis-card h3{ font-size:1rem; margin-bottom:10px; }
.tesis-card p{ font-size:1.15rem; margin:0 0 14px; }
.tesis-embed{
  margin-top:26px;
  border:3px solid var(--ink);
  box-shadow:6px 6px 0 var(--ink);
}
.tesis-embed iframe{
  width:100%; height:70vh; border:none; display:block; background:#333;
}
.tesis-embed .embed-bar{
  display:flex; justify-content:space-between; align-items:center;
  padding:10px 14px; background:var(--ink); color:var(--paper);
  font-family:var(--pixel); font-size:.55rem;
}
.tesis-embed .embed-bar a{ color:var(--blue); }
.load-pdf{
  padding:60px 20px; text-align:center;
}

/* ---------- FOOTER ---------- */
footer{
  padding:40px 0 60px;
  text-align:center;
}
footer p{ font-size:1.05rem; color:#2b2b26; }
footer a{ color:var(--red); text-decoration:none; }
footer .home-link{
  font-family:var(--pixel); font-size:.6rem;
  display:inline-block; margin-top:16px;
}

/* focus visibility everywhere */
a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:2px;
}

@media (min-width:760px){
  .tesis-grid{ grid-template-columns:1fr 1fr; }
}

/* =========================================================
   WINDOW MANAGER — ventanas flotantes (glosario, índice, etc.)
   Se pueden mover, minimizar, maximizar y superponer.
   ========================================================= */
.wm-layer{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:200;
}

.wm-window{
  position:absolute;
  pointer-events:auto;
  display:flex;
  flex-direction:column;
  background:var(--paper);
  border:3px solid var(--ink);
  box-shadow:8px 8px 0 var(--ink);
  min-width:260px;
  min-height:180px;
}
.wm-window.active{ box-shadow:8px 8px 0 var(--red); }

.wm-titlebar{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--pixel);
  font-size:.6rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:8px 10px;
  cursor:move;
  touch-action:none;
  flex:0 0 auto;
  user-select:none;
}
.wm-title{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.wm-controls{ display:flex; gap:6px; flex:0 0 auto; }
.wm-btn{
  font-family:var(--pixel);
  font-size:.6rem;
  width:24px; height:24px;
  line-height:1;
  background:var(--paper);
  color:var(--ink);
  border:2px solid var(--ink);
  display:flex; align-items:center; justify-content:center;
  padding:0;
}
.wm-btn:hover{ background:var(--red); color:var(--white); }

.wm-body{
  flex:1 1 auto;
  overflow:auto;
  padding:16px 18px;
  font-size:1.1rem;
  -webkit-overflow-scrolling:touch;
}

/* ventanas cuyo contenido debe llenar todo el body sin márgenes
   (por ejemplo, el índice embebido vía iframe) */
.wm-body.wm-body-flush{
  padding:0;
  overflow:hidden;
}
.app-iframe{
  display:block;
  width:100%;
  height:100%;
  border:none;
  background:#fff;
}

/* menú de "VER COMPLEMENTOS" dentro de su ventana */
.app-menu{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.app-menu-btn{
  font-family:var(--pixel);
  font-size:.6rem;
  text-align:left;
  padding:12px 14px;
  background:var(--paper);
  border:2px solid var(--ink);
  color:var(--ink);
}
.app-menu-btn:hover{ box-shadow:3px 3px 0 var(--ink); }

.wm-resize{
  position:absolute; right:0; bottom:0;
  width:18px; height:18px;
  cursor:nwse-resize;
  touch-action:none;
  background:
    linear-gradient(135deg, transparent 0 50%, var(--ink) 50% 60%, transparent 60% 100%),
    linear-gradient(135deg, transparent 0 65%, var(--ink) 65% 75%, transparent 75% 100%);
}

/* ---------- TASKBAR ---------- */
.wm-taskbar{
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:210;
  display:none;
  gap:8px;
  padding:8px 12px;
  background:var(--ink);
  border-top:3px solid var(--red);
  overflow-x:auto;
  pointer-events:auto;
}
.wm-taskbar.has-items{ display:flex; }
.wm-taskbtn{
  flex:0 0 auto;
  font-family:var(--pixel);
  font-size:.55rem;
  padding:8px 10px;
  background:var(--paper);
  color:var(--ink);
  border:2px solid var(--ink);
  white-space:nowrap;
}
.wm-taskbtn[aria-pressed="false"]{
  background:transparent;
  color:var(--paper);
}
.wm-taskbtn:hover{ box-shadow:3px 3px 0 var(--red); }

@media (max-width:640px){
  .wm-window{ min-width:0; }
  .wm-body{ padding:14px; font-size:1rem; }
  .wm-body.wm-body-flush{ padding:0; }

  /* en teléfonos, dos o tres botones ya no caben en una fila —
     el taskbar se apila verticalmente como una columna flotante
     anclada abajo a la derecha, en vez de scroll horizontal. */
  .wm-taskbar{
    left:auto;
    right:10px;
    bottom:10px;
    flex-direction:column;
    align-items:stretch;
    background:transparent;
    border-top:none;
    padding:0;
    gap:8px;
    max-width:62vw;
    max-height:70vh;
    overflow-y:auto;
    overflow-x:hidden;
  }
  .wm-taskbtn{
    box-shadow:3px 3px 0 var(--ink);
    background:var(--paper);
    color:var(--ink);
  }
  .wm-taskbtn[aria-pressed="false"]{
    background:var(--ink);
    color:var(--paper);
  }
}