/* =====================================================================
   ACM Chapter UAC - Estilos
   Tema oscuro "cristal": paneles de vidrio sobre fondo azul profundo.
   Los colores principales estan en :root (cambialos aqui).
   ===================================================================== */
@font-face { font-family: "Sora"; font-weight: 300; font-display: swap; src: url(../fonts/sora-latin-300-normal.woff2) format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 400; font-display: swap; src: url(../fonts/sora-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 600; font-display: swap; src: url(../fonts/sora-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "Sora"; font-weight: 700; font-display: swap; src: url(../fonts/sora-latin-700-normal.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 400; font-display: swap; src: url(../fonts/inter-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-display: swap; src: url(../fonts/inter-latin-500-normal.woff2) format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url(../fonts/inter-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url(../fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 500; font-display: swap; src: url(../fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2"); }

:root {
  --fondo: #020817;
  --fondo-2: #061433;
  --texto: #e8f1ff;
  --suave: #9db3d6;
  --tenue: #6a82a8;
  --azul: #1f6bff;
  --acm: #0a5fe0;
  --cian: #36d6ff;
  --violeta: #8a6bff;
  --verde: #2fe0a0;
  --ambar: #ffb547;
  --rosa: #ff5fa8;
  --linea: rgba(140, 190, 255, .14);
  --linea-2: rgba(140, 190, 255, .28);
  --vidrio: linear-gradient(160deg, rgba(30, 64, 140, .30), rgba(6, 16, 44, .62) 65%);
  --sombra: 0 30px 70px -30px rgba(0, 0, 0, .75), inset 0 1px 0 rgba(255, 255, 255, .06);
  --grad: linear-gradient(120deg, #36d6ff, #1f6bff 55%, #8a6bff);
  --disp: "Sora", "Segoe UI", system-ui, sans-serif;
  --cuerpo: "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --r: 18px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ancho: 1240px;
  --pad: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--fondo); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; overflow-x: hidden;
  font-family: var(--cuerpo); font-size: 16px; line-height: 1.6; color: var(--texto);
  background:
    radial-gradient(1200px 700px at 85% -10%, rgba(31, 107, 255, .22), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(138, 107, 255, .12), transparent 60%),
    var(--fondo);
  -webkit-font-smoothing: antialiased;
}
body.menu-abierto { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
::selection { background: rgba(54, 214, 255, .35); }
:focus-visible { outline: 2px solid var(--cian); outline-offset: 3px; border-radius: 6px; }
.ico { width: 1.15em; height: 1.15em; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; vertical-align: -.18em; }
.contenedor { width: min(var(--ancho), 100% - 2 * var(--pad)); margin-inline: auto; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* luz que sigue al cursor (fondo) */
.luz-cursor { position: fixed; left: -300px; top: -300px; width: 600px; height: 600px; border-radius: 50%; pointer-events: none; z-index: 0;
  background: radial-gradient(circle, rgba(54, 214, 255, .07), transparent 60%); will-change: transform; }
@media (hover: none) { .luz-cursor { display: none; } }

/* ------------------------------ vidrio ------------------------------ */
.vidrio {
  position: relative; isolation: isolate;
  background: var(--vidrio); border: 1px solid var(--linea); border-radius: var(--r);
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: var(--sombra);
  --mx: 50%; --my: -300px;
}
.vidrio::before { content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1; pointer-events: none;
  background: radial-gradient(380px circle at var(--mx) var(--my), rgba(90, 200, 255, .12), transparent 45%); }
.vidrio::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none; padding: 1px;
  background: radial-gradient(240px circle at var(--mx) var(--my), rgba(143, 230, 255, .8), rgba(138, 107, 255, .3) 40%, transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }

/* ------------------------------ botones ------------------------------ */
.boton {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 24px; border-radius: 14px; font-family: var(--disp); font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  border: 1px solid var(--linea-2); background: rgba(10, 24, 60, .5); backdrop-filter: blur(10px);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .3s, background .3s; overflow: hidden; white-space: nowrap;
}
.boton:hover { transform: translateY(-2px); border-color: var(--cian); box-shadow: 0 12px 30px -12px rgba(54, 214, 255, .6); }
.boton .ico { transition: transform .3s var(--ease); }
.boton:hover .ico { transform: translateX(3px); }
.boton-brillo { border-color: rgba(190, 240, 255, .6); color: #fff;
  background: linear-gradient(170deg, rgba(255, 255, 255, .28), transparent 45%), linear-gradient(120deg, #2fd0ff, #1f6bff 60%, #5b5cff);
  box-shadow: 0 14px 40px -12px rgba(31, 107, 255, .85), inset 0 1px 0 rgba(255, 255, 255, .5); }
.boton-brillo::after { content: ""; position: absolute; inset: -50% -60%; background: linear-gradient(105deg, transparent 42%, rgba(255, 255, 255, .45) 50%, transparent 58%);
  transform: translateX(-70%); animation: barrido 5s ease-in-out infinite; }
@keyframes barrido { 0%, 60% { transform: translateX(-70%); } 100% { transform: translateX(70%); } }
.boton-sm { min-height: 40px; padding: 0 16px; font-size: .85rem; border-radius: 12px; }
.boton-fantasma { background: transparent; }

/* ------------------------------ etiquetas ------------------------------ */
.kicker { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 14px; padding: 6px 14px 6px 8px; border-radius: 999px;
  font-family: var(--mono); font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--cian);
  background: rgba(54, 214, 255, .08); border: 1px solid rgba(54, 214, 255, .25); }
.kicker i { width: 8px; height: 8px; border-radius: 50%; background: var(--cian); box-shadow: 0 0 12px var(--cian); animation: pulso 2s ease-in-out infinite; }
@keyframes pulso { 50% { opacity: .35; } }
.titulo-sec { font-family: var(--disp); font-weight: 600; font-size: clamp(1.8rem, 3.6vw, 2.8rem); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 12px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--suave); font-size: clamp(1rem, 1.4vw, 1.12rem); max-width: 60ch; margin: 0; }
.seccion { position: relative; z-index: 1; padding: clamp(70px, 10vw, 120px) 0; }
.sec-cab { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: 36px; }
.sec-cab .lead { margin-top: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.chips li { font-family: var(--mono); font-size: .68rem; padding: 3px 9px; border-radius: 999px; color: var(--suave); background: rgba(140, 190, 255, .08); border: 1px solid var(--linea); }
.ejemplo { position: absolute; left: 12px; top: 12px; font-family: var(--mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; background: rgba(2, 8, 23, .7); color: var(--ambar); border: 1px solid rgba(255, 181, 71, .45); }
.tp-meta .ejemplo, .det-meta .ejemplo { position: static; }

/* ------------------------------ cabecera ------------------------------ */
.cabecera {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; display: flex; align-items: center; gap: 24px;
  padding: 14px var(--pad); transition: background .4s, border-color .4s, padding .4s; border-bottom: 1px solid transparent;
}
.cabecera.solida { background: rgba(2, 8, 23, .72); backdrop-filter: blur(16px) saturate(150%); -webkit-backdrop-filter: blur(16px); border-color: var(--linea); padding-block: 10px; }
.marca { display: flex; align-items: center; gap: 12px; }
.marca img { width: 40px; height: 40px; border-radius: 50%; box-shadow: 0 0 0 1px rgba(255, 255, 255, .15), 0 0 24px rgba(31, 107, 255, .55); }
.marca span { display: flex; flex-direction: column; line-height: 1.15; }
.marca b { font-family: var(--disp); font-weight: 700; font-size: 1rem; letter-spacing: .01em; }
.marca small { font-family: var(--mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; color: var(--cian); opacity: .85; }
.nav { margin-left: auto; }
.nav > ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav li { position: relative; }
.nav > ul > li > a { display: flex; align-items: center; gap: 4px; padding: 9px 14px; border-radius: 10px; font-weight: 500; font-size: .93rem; color: var(--suave); transition: color .2s, background .2s; }
.nav > ul > li > a:hover, .nav li.actual > a { color: #fff; background: rgba(140, 190, 255, .08); }
.nav li.actual > a { box-shadow: inset 0 -2px 0 var(--cian); }
.flechita { width: 14px; height: 14px; transition: transform .3s; }
.nav .sub { position: absolute; top: calc(100% + 8px); left: 0; min-width: 210px; list-style: none; margin: 0; padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: all .25s var(--ease); background: rgba(6, 16, 44, .92); }
.nav li.con-sub:hover .sub, .nav li.con-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; }
.nav li.con-sub:hover .flechita { transform: rotate(180deg); }
.nav .sub a { display: block; padding: 9px 12px; border-radius: 9px; font-size: .9rem; color: var(--suave); }
.nav .sub a:hover { background: rgba(54, 214, 255, .1); color: #fff; }
.hamburguesa { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--linea-2); background: rgba(10, 24, 60, .5); place-items: center; margin-left: auto; }
.hamburguesa .ico { width: 22px; height: 22px; }
.cajon { position: fixed; inset: 0; z-index: 45; background: rgba(2, 8, 23, .96); backdrop-filter: blur(18px); padding: 96px var(--pad) 40px;
  opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; overflow-y: auto; }
body.menu-abierto .cajon { opacity: 1; visibility: visible; }
.cajon nav { display: grid; gap: 10px; }
.cj-grupo { opacity: 0; transform: translateY(14px); transition: all .5s var(--ease); transition-delay: calc(var(--i) * 60ms); border-bottom: 1px solid var(--linea); padding-bottom: 12px; }
body.menu-abierto .cj-grupo { opacity: 1; transform: none; }
.cj-principal { display: block; font-family: var(--disp); font-size: 1.8rem; font-weight: 600; }
.cj-principal.actual { color: var(--cian); }
.cj-sub { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.cj-sub a { font-size: .9rem; color: var(--suave); padding: 6px 12px; border-radius: 999px; border: 1px solid var(--linea); }
.cajon .boton { margin-top: 18px; }

/* ------------------------------ hero ------------------------------ */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden; padding: 110px 0 120px; }
.hero-3d { position: absolute; inset: 0; z-index: 0; }
.hero-3d .lienzo3d { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-3d .respaldo { position: absolute; inset: 0; background: url(../assets/img/logo_render.jpg) 78% 50% / auto 80% no-repeat; opacity: 0; transition: opacity .8s; }
.hero-3d.sin3d .respaldo { opacity: 1; }
.hero-3d::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(2, 8, 23, .82) 0%, rgba(2, 8, 23, .4) 40%, transparent 62%), linear-gradient(0deg, var(--fondo) 0%, transparent 22%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 30px; align-items: center; pointer-events: none; }
.hero-texto { pointer-events: auto; }
.hero h1 { font-family: var(--disp); font-weight: 700; font-size: clamp(2.4rem, 5.6vw, 4.6rem); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 22px; }
.hero h1 .l { display: inline-block; opacity: 0; transform: translateY(.5em) rotate(4deg); animation: letra .9s var(--ease) forwards; }
@keyframes letra { to { opacity: 1; transform: none; } }
.hero .lead { margin-bottom: 30px; }
.hero-botones { display: flex; flex-wrap: wrap; gap: 12px; }
.ancla-logo { aspect-ratio: 1; width: 100%; max-width: 560px; justify-self: end; }
.tip3d { position: absolute; left: 0; top: 0; z-index: 3; max-width: 260px; padding: 12px 14px; pointer-events: none; opacity: 0; transition: opacity .25s;
  background: rgba(4, 14, 40, .88); border: 1px solid var(--linea-2); border-radius: 14px; backdrop-filter: blur(10px); box-shadow: var(--sombra); }
.tip3d.ver { opacity: 1; }
.tip3d b { display: block; font-family: var(--disp); font-size: .95rem; color: #fff; margin-bottom: 3px; }
.tip3d span { display: block; font-size: .82rem; color: var(--suave); line-height: 1.45; }
.tip3d em { display: block; margin-top: 6px; font-style: normal; font-family: var(--mono); font-size: .66rem; color: var(--cian); letter-spacing: .1em; }
.pista-3d { position: absolute; z-index: 2; right: var(--pad); bottom: 110px; font-family: var(--mono); font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--tenue); display: flex; align-items: center; gap: 8px; }
.pista-3d .ico { color: var(--cian); }

/* barra de cifras */
.cifras { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--linea); background: rgba(3, 10, 30, .55); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.cifra { display: flex; align-items: center; gap: 14px; padding: 18px clamp(14px, 2vw, 28px); border-right: 1px solid var(--linea); transition: background .3s; }
.cifra:last-child { border-right: 0; }
.cifra:hover { background: rgba(54, 214, 255, .06); }
.cifra .ico { width: 30px; height: 30px; padding: 6px; border-radius: 10px; color: var(--cian); background: rgba(54, 214, 255, .1); border: 1px solid rgba(54, 214, 255, .2); }
.cifra b { display: block; font-family: var(--disp); font-weight: 600; font-size: 1rem; }
.cifra span { font-size: .8rem; color: var(--suave); }

/* ------------------------------ quienes ------------------------------ */
.quienes { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.quienes-panel { padding: clamp(24px, 3vw, 36px); }
.quienes-panel p { margin: 0 0 16px; color: var(--suave); }
.quienes-panel .datos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 22px; }
.quienes-panel .datos div { padding: 14px; border-radius: 14px; background: rgba(140, 190, 255, .06); border: 1px solid var(--linea); }
.quienes-panel .datos b { display: block; font-family: var(--disp); font-size: .95rem; }
.quienes-panel .datos span { font-size: .78rem; color: var(--tenue); }

/* ------------------------------ actividades ------------------------------ */
.actividades { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.act { padding: 22px; transition: transform .45s var(--ease); }
.act:hover { transform: translateY(-4px); }
.act .ico-caja { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; margin-bottom: 16px; color: #fff;
  background: linear-gradient(140deg, rgba(54, 214, 255, .35), rgba(31, 107, 255, .35)); border: 1px solid rgba(143, 230, 255, .35); box-shadow: 0 10px 30px -10px rgba(31, 107, 255, .8); }
.act .ico-caja .ico { width: 22px; height: 22px; }
.act h3 { font-family: var(--disp); font-size: 1.05rem; font-weight: 600; margin: 0 0 6px; }
.act p { margin: 0; font-size: .9rem; color: var(--suave); }
.act-destacada { grid-column: span 2; grid-row: span 2; padding: clamp(24px, 3vw, 34px); display: flex; flex-direction: column; justify-content: flex-end; min-height: 280px; overflow: hidden;
  background: radial-gradient(500px 300px at 90% 0%, rgba(54, 214, 255, .28), transparent 60%), linear-gradient(160deg, rgba(31, 107, 255, .45), rgba(6, 16, 44, .7)); }
.act-destacada h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); line-height: 1.15; }
.act-destacada p { font-size: 1rem; margin-bottom: 20px; max-width: 46ch; }
.act-destacada .orb { position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; border-radius: 50%; border: 1px dashed rgba(143, 230, 255, .35); animation: gira 30s linear infinite; z-index: -1; }
.act-destacada .orb::after { content: ""; position: absolute; inset: 36px; border-radius: 50%; border: 1px solid rgba(143, 230, 255, .2); }
@keyframes gira { to { transform: rotate(360deg); } }

/* ------------------------------ tarjetas proyecto ------------------------------ */
.rejilla-p { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.tarjeta-p { overflow: hidden; display: flex; flex-direction: column; transition: transform .45s var(--ease), border-color .3s; }
.tarjeta-p:hover { transform: translateY(-6px); border-color: var(--linea-2); }
.tp-enlace { position: absolute; inset: 0; z-index: 3; border-radius: inherit; }
.tp-portada { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--linea); }
.portada-svg, .portada-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .8s var(--ease); }
.tarjeta-p:hover .portada-svg, .tarjeta-p:hover .portada-img { transform: scale(1.06); }
.estado { position: absolute; right: 12px; top: 12px; font-family: var(--mono); font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; padding: 4px 9px; border-radius: 999px; background: rgba(2, 8, 23, .72); border: 1px solid var(--linea-2); backdrop-filter: blur(6px); }
.estado.curso { color: var(--cian); border-color: rgba(54, 214, 255, .5); }
.estado.fin { color: var(--verde); border-color: rgba(47, 224, 160, .5); }
.estado.pub { color: #c7b5ff; border-color: rgba(138, 107, 255, .6); }
.estado.conv { color: var(--ambar); border-color: rgba(255, 181, 71, .55); }
.tp-cuerpo { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.tp-meta { margin: 0; font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--cian); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tarjeta-p h3, .tarjeta-e h3 { margin: 0; font-family: var(--disp); font-size: 1.12rem; font-weight: 600; line-height: 1.3; }
.tp-desc { margin: 0; font-size: .9rem; color: var(--suave); flex: 1; }
.tp-ver { display: inline-flex; gap: 6px; align-items: center; font-size: .85rem; font-weight: 600; color: var(--cian); margin-top: 6px; }
.tarjeta-p:hover .tp-ver .ico { transform: translateX(4px); }
.tp-ver .ico { transition: transform .3s var(--ease); }

/* ------------------------------ tarjetas evento ------------------------------ */
.lista-e { display: grid; gap: 12px; }
.rejilla-e { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }
.tarjeta-e { display: flex; gap: 18px; align-items: center; padding: 16px 18px; transition: transform .4s var(--ease), border-color .3s; }
.tarjeta-e:hover { transform: translateX(4px); border-color: var(--linea-2); }
.tarjeta-e.pasado { opacity: .62; }
.te-fecha { flex: none; width: 70px; height: 78px; border-radius: 14px; display: grid; place-content: center; text-align: center; line-height: 1.05;
  background: linear-gradient(160deg, rgba(54, 214, 255, .22), rgba(31, 107, 255, .25)); border: 1px solid rgba(143, 230, 255, .3); }
.te-fecha b { font-family: var(--disp); font-size: 1.6rem; font-weight: 700; }
.te-fecha span { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--cian); }
.te-fecha small { font-size: .62rem; color: var(--tenue); }
.te-cuerpo { flex: 1; min-width: 0; display: grid; gap: 4px; }
.te-info { margin: 0; font-size: .84rem; color: var(--suave); display: flex; gap: 6px; align-items: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.te-info .ico { color: var(--cian); }
.cat { color: var(--cian); }
.pas { color: var(--tenue); }
.te-flecha { color: var(--tenue); transition: color .3s, transform .3s var(--ease); }
.tarjeta-e:hover .te-flecha { color: var(--cian); transform: translateX(4px); }

/* ------------------------------ internacional ------------------------------ */
.internacional { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(20px, 3vw, 40px); align-items: center; padding: clamp(28px, 4vw, 52px); overflow: hidden;
  background: radial-gradient(600px 400px at 0% 100%, rgba(138, 107, 255, .25), transparent 60%), radial-gradient(500px 300px at 100% 0%, rgba(54, 214, 255, .2), transparent 60%), var(--vidrio); }
.paises { padding: 22px; border-radius: 16px; background: rgba(2, 8, 23, .45); border: 1px solid var(--linea); }
.paises h3 { margin: 0 0 4px; font-family: var(--disp); font-size: 1.05rem; }
.paises p { margin: 0 0 14px; font-size: .85rem; color: var(--suave); }
.paises-lista { display: flex; flex-wrap: wrap; gap: 8px; }
.pais { padding: 7px 14px; border-radius: 999px; font-size: .85rem; border: 1px solid var(--linea-2); background: rgba(140, 190, 255, .06); transition: all .25s; }
.pais:hover { border-color: var(--cian); }
.pais.sel { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 8px 22px -8px rgba(31, 107, 255, .9); }
.paises-res { margin-top: 14px; min-height: 1.6em; font-size: .9rem; color: var(--suave); }
.paises-res a { color: var(--cian); font-weight: 600; }
.globo-css { position: absolute; right: -120px; bottom: -160px; width: 420px; height: 420px; border-radius: 50%; z-index: -1; opacity: .5;
  background: repeating-linear-gradient(90deg, transparent 0 28px, rgba(143, 230, 255, .12) 28px 29px), repeating-linear-gradient(0deg, transparent 0 28px, rgba(143, 230, 255, .12) 28px 29px);
  -webkit-mask: radial-gradient(circle, #000 60%, transparent 70%); mask: radial-gradient(circle, #000 60%, transparent 70%); animation: gira 80s linear infinite; }

/* ------------------------------ convocatoria ------------------------------ */
.convocatoria { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(20px, 3vw, 44px); align-items: center; padding: clamp(28px, 4vw, 52px);
  background: radial-gradient(700px 400px at 100% 100%, rgba(31, 107, 255, .45), transparent 60%), linear-gradient(140deg, rgba(31, 107, 255, .35), rgba(6, 16, 44, .7)); }
.pasos { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: paso; }
.pasos li { counter-increment: paso; display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; background: rgba(2, 8, 23, .4); border: 1px solid var(--linea); font-weight: 500; }
.pasos li::before { content: counter(paso); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; flex: none; font-family: var(--disp); font-weight: 700; font-size: .9rem; background: #fff; color: var(--acm); }
.correo-linea { margin-top: 18px; font-size: .9rem; color: var(--suave); }
.correo-linea a { color: var(--cian); font-weight: 600; }

/* ------------------------------ paginas internas ------------------------------ */
.cab-pagina { position: relative; z-index: 1; padding: 140px 0 40px; }
.cab-pagina h1 { font-family: var(--disp); font-weight: 700; font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.03em; line-height: 1.05; margin: 0 0 12px; }
.miga { display: flex; gap: 8px; align-items: center; font-size: .82rem; color: var(--tenue); margin-bottom: 16px; }
.miga a:hover { color: var(--cian); }

/* filtros */
.filtros { display: grid; grid-template-columns: 2fr repeat(4, 1fr) auto; gap: 10px; padding: 14px; margin-bottom: 18px; align-items: end; }
.campo { display: grid; gap: 6px; }
.campo label, .campo .etq { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tenue); }
.entrada { position: relative; display: flex; align-items: center; }
.entrada .ico { position: absolute; left: 13px; color: var(--tenue); pointer-events: none; }
input, select, textarea {
  width: 100%; min-height: 46px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--linea-2); background: rgba(2, 8, 23, .55);
  outline: none; transition: border-color .2s, box-shadow .2s; font-size: .95rem;
}
.entrada input { padding-left: 40px; }
select { appearance: none; -webkit-appearance: none; padding-right: 34px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239db3d6' stroke-width='2'%3E%3Cpath d='m7 10 5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; background-size: 18px; }
select option { background: #061433; }
input:focus, select:focus, textarea:focus { border-color: var(--cian); box-shadow: 0 0 0 3px rgba(54, 214, 255, .15); }
input[type="date"] { color-scheme: dark; }
textarea { min-height: 140px; resize: vertical; }
.limpiar { min-height: 46px; padding: 0 16px; border-radius: 12px; border: 1px solid var(--linea-2); color: var(--suave); }
.limpiar:hover { color: #fff; border-color: var(--cian); }
.resumen-filtro { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 16px; font-size: .88rem; color: var(--suave); flex-wrap: wrap; }
.resumen-filtro b { color: #fff; }
.vacio { text-align: center; padding: 50px 20px; color: var(--suave); border: 1px dashed var(--linea-2); border-radius: var(--r); }
.vacio .ico { width: 34px; height: 34px; color: var(--cian); margin: 0 auto 10px; display: block; }
.pastillas { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pastilla { padding: 7px 14px; border-radius: 999px; font-size: .85rem; border: 1px solid var(--linea-2); color: var(--suave); background: rgba(140, 190, 255, .05); transition: all .25s; }
.pastilla:hover { color: #fff; border-color: var(--cian); }
.pastilla.sel { color: #fff; background: var(--grad); border-color: transparent; }

/* detalle (proyecto / evento) */
.detalle { display: grid; grid-template-columns: 1.6fr 1fr; gap: 22px; align-items: start; }
.det-portada { border-radius: var(--r); overflow: hidden; aspect-ratio: 16 / 8; border: 1px solid var(--linea); margin-bottom: 22px; }
.det-bloque { padding: clamp(20px, 3vw, 30px); margin-bottom: 18px; }
.det-bloque h2 { font-family: var(--disp); font-size: 1.2rem; font-weight: 600; margin: 0 0 12px; display: flex; gap: 10px; align-items: center; }
.det-bloque h2 .ico { color: var(--cian); }
.det-bloque p { margin: 0; color: var(--suave); }
.det-lista { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.det-lista li { display: flex; gap: 10px; color: var(--suave); }
.det-lista li .ico { color: var(--verde); margin-top: 3px; }
.equipo { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.persona { display: flex; gap: 12px; align-items: center; padding: 10px 12px; border-radius: 14px; background: rgba(140, 190, 255, .05); border: 1px solid var(--linea); }
.avatar { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; flex: none; font-family: var(--disp); font-weight: 700; font-size: .85rem; background: var(--grad); color: #fff; }
.persona b { display: block; font-size: .9rem; font-weight: 600; line-height: 1.25; }
.persona span { font-size: .78rem; color: var(--tenue); }
.galeria { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.galeria button { border-radius: 12px; overflow: hidden; aspect-ratio: 4 / 3; border: 1px solid var(--linea); }
.galeria img, .galeria svg { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.galeria button:hover img, .galeria button:hover svg { transform: scale(1.06); }
.ficha { padding: 22px; position: sticky; top: 90px; }
.ficha dl { margin: 0; display: grid; gap: 14px; }
.ficha dt { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tenue); margin-bottom: 2px; }
.ficha dd { margin: 0; font-weight: 500; display: flex; gap: 8px; align-items: center; }
.ficha dd .ico { color: var(--cian); }
.ficha .boton { width: 100%; margin-top: 18px; }
.enlaces { display: grid; gap: 8px; }
.enlaces a { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-radius: 12px; background: rgba(140, 190, 255, .05); border: 1px solid var(--linea); transition: border-color .2s; }
.enlaces a:hover { border-color: var(--cian); }
.enlaces .pendiente { opacity: .55; pointer-events: none; }
.mapa { border-radius: 14px; overflow: hidden; border: 1px solid var(--linea); aspect-ratio: 16 / 10; background: rgba(2, 8, 23, .6); }
.mapa iframe { width: 100%; height: 100%; border: 0; filter: invert(.9) hue-rotate(180deg) saturate(.8) brightness(.95); }
.visor { position: fixed; inset: 0; z-index: 80; background: rgba(2, 8, 23, .92); display: grid; place-items: center; padding: 24px; opacity: 0; visibility: hidden; transition: all .3s; }
.visor.ver { opacity: 1; visibility: visible; }
.visor > div { width: min(1000px, 100%); border-radius: 16px; overflow: hidden; border: 1px solid var(--linea-2); }
.visor button { position: absolute; top: 18px; right: 18px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--linea-2); display: grid; place-items: center; }

/* calendario */
.agenda { display: grid; grid-template-columns: 1.15fr 1fr; gap: 20px; align-items: start; }
.calendario { padding: 18px; }
.cal-cab { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; gap: 10px; }
.cal-cab h2 { margin: 0; font-family: var(--disp); font-size: 1.25rem; text-transform: capitalize; }
.cal-nav { display: flex; gap: 6px; }
.cal-nav button { min-width: 40px; height: 40px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--linea-2); display: grid; place-items: center; font-size: .85rem; }
.cal-nav button:hover { border-color: var(--cian); }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dsem { text-align: center; font-family: var(--mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--tenue); padding: 6px 0; }
.cal-dia { position: relative; aspect-ratio: 1.35; border-radius: 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; font-size: .9rem;
  border: 1px solid transparent; background: rgba(140, 190, 255, .03); transition: all .2s; }
.cal-dia:hover { border-color: var(--linea-2); }
.cal-dia.otro { opacity: .3; }
.cal-dia.hoy { border-color: var(--cian); color: var(--cian); font-weight: 700; }
.cal-dia.con-evento { background: rgba(31, 107, 255, .16); }
.cal-dia.sel { background: var(--grad); color: #fff; border-color: transparent; }
.puntos { display: flex; gap: 3px; height: 6px; }
.puntos i { width: 6px; height: 6px; border-radius: 50%; background: var(--cian); box-shadow: 0 0 6px var(--cian); }
.leyenda-cal { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 12px; font-size: .78rem; color: var(--tenue); }
.leyenda-cal span { display: inline-flex; align-items: center; gap: 6px; }
.leyenda-cal i { width: 10px; height: 10px; border-radius: 3px; }
.busqueda-av { padding: 18px; display: grid; gap: 12px; }
.busqueda-av h2 { margin: 0; font-family: var(--disp); font-size: 1.1rem; display: flex; gap: 8px; align-items: center; }
.busqueda-av h2 .ico { color: var(--cian); }
.fila-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fila-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.modo { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; border-radius: 12px; background: rgba(2, 8, 23, .55); border: 1px solid var(--linea); }
.modo button { padding: 8px; border-radius: 9px; font-size: .85rem; color: var(--suave); }
.modo button.sel { background: rgba(54, 214, 255, .15); color: #fff; box-shadow: inset 0 0 0 1px rgba(54, 214, 255, .4); }

/* contacto */
.contacto { display: grid; grid-template-columns: 1fr 1.3fr; gap: 22px; align-items: start; }
.canales { display: grid; gap: 12px; }
.canal { display: flex; gap: 14px; align-items: center; padding: 18px; }
.canal .ico-caja { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; flex: none; color: #fff; background: linear-gradient(140deg, rgba(54, 214, 255, .35), rgba(31, 107, 255, .35)); border: 1px solid rgba(143, 230, 255, .35); }
.canal b { display: block; font-family: var(--disp); font-size: .98rem; }
.canal span, .canal a.txt { font-size: .9rem; color: var(--suave); word-break: break-all; }
.canal .acciones { margin-left: auto; display: flex; gap: 6px; }
.canal .acciones button, .canal .acciones a { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--linea-2); display: grid; place-items: center; }
.canal .acciones button:hover, .canal .acciones a:hover { border-color: var(--cian); color: var(--cian); }
.redes-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.redes-grid a, .redes-grid span { display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px; border-radius: 12px; border: 1px solid var(--linea); font-size: .85rem; color: var(--suave); }
.redes-grid a:hover { border-color: var(--cian); color: #fff; }
.redes-grid span { opacity: .5; }
.pestanas { display: grid; grid-template-columns: 1fr 1fr; padding: 5px; gap: 4px; border-radius: 14px; background: rgba(2, 8, 23, .55); border: 1px solid var(--linea); margin-bottom: 18px; }
.pestanas button { padding: 11px; border-radius: 10px; font-weight: 600; color: var(--suave); transition: all .25s; }
.pestanas button.sel { background: var(--grad); color: #fff; box-shadow: 0 8px 20px -8px rgba(31, 107, 255, .9); }
.formulario { padding: clamp(20px, 3vw, 30px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .ancho { grid-column: 1 / -1; }
.campo .error { font-size: .78rem; color: var(--rosa); min-height: 1em; }
.campo.invalido input, .campo.invalido select, .campo.invalido textarea { border-color: var(--rosa); }
.req { color: var(--cian); }
.nota-form { font-size: .8rem; color: var(--tenue); margin: 14px 0 0; }
.confirmacion { display: none; text-align: center; padding: 30px 10px; }
.formulario.enviado form { display: none; }
.formulario.enviado .confirmacion { display: block; animation: aparece .6s var(--ease); }
@keyframes aparece { from { opacity: 0; transform: scale(.96); } }
.check-anim { width: 92px; height: 92px; margin: 0 auto 18px; }
.check-anim circle { fill: none; stroke: rgba(54, 214, 255, .25); stroke-width: 3; }
.check-anim .aro { stroke: var(--cian); stroke-dasharray: 289; stroke-dashoffset: 289; animation: trazo 1s var(--ease) forwards; transform: rotate(-90deg); transform-origin: center; }
.check-anim path { fill: none; stroke: #fff; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 60; stroke-dashoffset: 60; animation: trazo .5s .7s var(--ease) forwards; }
@keyframes trazo { to { stroke-dashoffset: 0; } }
.confirmacion h3 { font-family: var(--disp); font-size: 1.4rem; margin: 0 0 8px; }
.confirmacion p { color: var(--suave); margin: 0 auto 20px; max-width: 42ch; }
.inscripcion-marco { border-radius: 14px; overflow: hidden; border: 1px solid var(--linea); background: #fff; height: 640px; }
.inscripcion-marco iframe { width: 100%; height: 100%; border: 0; }

/* aviso */
.aviso { position: fixed; left: 50%; bottom: 24px; z-index: 90; transform: translate(-50%, 20px); padding: 12px 18px; font-size: .9rem; opacity: 0; transition: all .35s var(--ease); pointer-events: none; }
.aviso.ver { opacity: 1; transform: translate(-50%, 0); }

/* ------------------------------ pie ------------------------------ */
.pie { position: relative; z-index: 1; margin-top: 60px; border-top: 1px solid var(--linea); background: linear-gradient(180deg, transparent, rgba(6, 20, 51, .6)); padding: 50px var(--pad) 26px; }
.pie-grid { width: min(var(--ancho), 100%); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 30px; }
.pie h4 { margin: 0 0 12px; font-family: var(--mono); font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--tenue); font-weight: 500; }
.pie-grid > div > a { display: flex; gap: 8px; align-items: center; color: var(--suave); padding: 4px 0; font-size: .92rem; transition: color .2s; }
.pie-grid > div > a:hover { color: var(--cian); }
.pie-marca p { color: var(--suave); font-size: .9rem; margin: 14px 0 0; max-width: 42ch; }
.pie-dir { color: var(--tenue); font-size: .85rem; display: flex; gap: 8px; margin: 6px 0 0; }
.redes { display: flex; gap: 8px; margin-top: 12px; }
.redes a { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; border: 1px solid var(--linea-2); color: var(--suave); transition: all .2s; }
.redes a:hover { color: #fff; border-color: var(--cian); }
.pie-base { width: min(var(--ancho), 100%); margin: 36px auto 0; padding-top: 20px; border-top: 1px solid var(--linea); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: .8rem; color: var(--tenue); }

/* ------------------------------ aparicion ------------------------------ */
.revelar { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }
.revelar.visto { opacity: 1; transform: none; }

/* ------------------------------ adaptable ------------------------------ */
@media (max-width: 1080px) {
  .nav, .cab-cta { display: none; }
  .hamburguesa { display: grid; }
  .actividades { grid-template-columns: repeat(2, 1fr); }
  .filtros { grid-template-columns: 1fr 1fr; }
  .filtros .campo:first-child { grid-column: 1 / -1; }
  .pie-grid { grid-template-columns: 1fr 1fr; }
  .detalle, .agenda, .contacto { grid-template-columns: 1fr; }
  .ficha { position: static; }
}
@media (max-width: 860px) {
  .hero { min-height: auto; padding: 72px 0 0; display: block; }
  .hero-3d { position: relative; height: clamp(300px, 70vw, 480px); inset: auto; }
  .hero-3d::after { background: linear-gradient(0deg, var(--fondo) 0%, transparent 30%); }
  .hero-grid { grid-template-columns: 1fr; position: static; }
  .ancla-logo { position: absolute; top: 72px; left: 0; right: 0; height: clamp(300px, 70vw, 480px); max-width: none; width: 100%; aspect-ratio: auto; }
  .hero-texto { padding-top: 8px; }
  .cifras { position: relative; grid-template-columns: 1fr 1fr; margin-top: 40px; }
  .cifra { border-bottom: 1px solid var(--linea); }
  .cifra:nth-child(2) { border-right: 0; }
  .pista-3d { display: none; }
  .quienes, .internacional, .convocatoria { grid-template-columns: 1fr; }
  .quienes-panel .datos { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cal-dia { aspect-ratio: 1; }
  .actividades { grid-template-columns: 1fr; }
  .act-destacada { grid-column: auto; grid-row: auto; }
  .filtros, .form-grid, .fila-3 { grid-template-columns: 1fr; }
  .hero-botones .boton { flex: 1 1 100%; }
  .pie-grid { grid-template-columns: 1fr; }
  .galeria { grid-template-columns: 1fr 1fr; }
  .tarjeta-e { gap: 12px; padding: 12px; }
  .te-fecha { width: 58px; height: 66px; }
  .rejilla-e { grid-template-columns: 1fr; }
  .cifra { padding: 14px; gap: 10px; }
  .cifra span { font-size: .72rem; }
  .inscripcion-marco { height: 560px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; } .revelar { opacity: 1; transform: none; } }

/* ------------------------- demo 3D de un proyecto ------------------------- */
.sello-3d { position: absolute; left: 12px; bottom: 12px; font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; padding: 4px 9px; border-radius: 999px; background: linear-gradient(90deg, rgba(54, 214, 255, .22), rgba(138, 107, 255, .26)); color: #dff6ff; border: 1px solid rgba(54, 214, 255, .55); backdrop-filter: blur(6px); }
.demo3d { padding: 10px; margin-bottom: 22px; border-radius: var(--r); }
.demo-marco { position: relative; aspect-ratio: 2 / 1; border-radius: calc(var(--r) - 6px); overflow: hidden; background: #020817; }
.demo-marco > img, .demo-marco > svg { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(1.05) brightness(.7); transition: transform .8s var(--ease, ease), filter .4s; }
.demo-marco:hover > img { transform: scale(1.03); filter: saturate(1.1) brightness(.8); }
.demo-marco iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.demo-velo { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 14px; text-align: center; padding: 16px; background: radial-gradient(ellipse at center, rgba(2, 8, 23, .25), rgba(2, 8, 23, .75)); }
.demo-velo small { color: var(--tenue); font-size: .8rem; }
.demo-barra { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 12px 8px 4px; font-size: .85rem; color: var(--tenue); }
.demo-barra > span { display: inline-flex; gap: 8px; align-items: center; }
@media (max-width: 640px) { .demo-marco { aspect-ratio: 3 / 4; } }
.demo-marco.activo { aspect-ratio: auto; height: min(86vh, 860px); }
@media (max-width: 640px) { .demo-marco.activo { height: 82vh; } }