/* =========================================================
   109TECH — stile condiviso
   Usato da index.html e portfolio.html.
   Le regole specifiche di una singola pagina stanno in
   home.css e portfolio.css.
========================================================= */

:root{
  --bg:#050505;
  --ink:#f4f4f0;
  /* alzato rispetto al vecchio #7a7a78: sopra lo shader in
     movimento il grigio scuro diventava illeggibile */
  --dim:#9e9e99;
  --accent:#c8ff00;
  --accent2:#ff2e63;
  --accent3:#00e5ff;
  /* ombra applicata al testo grande che scorre sopra lo shader */
  --lift:0 2px 24px rgba(0,0,0,.9),0 0 2px rgba(0,0,0,.8);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--ink);overflow-x:hidden;cursor:none}
body{
  font-family:'Space Grotesk',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"ss01","ss02","cv11";
  min-height:100vh;
}
::selection{background:var(--accent);color:#000}
a{color:inherit;text-decoration:none}

/* =========================================================
   LAYER DI FONDO
   z: 0 shader · 1 particelle · 2 velo · 5 contenuto
      97 vignetta · 98 scanlines · 99 grana · 200 cursore · 300 boot
========================================================= */
#shader{position:fixed;inset:0;z-index:0;width:100%;height:100%;display:block}
#particles{position:fixed;inset:0;z-index:1;pointer-events:none}


/* Il velo è ciò che rende leggibile il testo: lo shader resta
   percepibile, ma smette di competere con il contenuto.
   Tarato a metà strada — abbastanza da leggere, non tanto da
   spegnere il fondo. Il contrasto vero lo fanno --lift sui testi
   grandi e i pannelli opachi sotto i blocchi. */
.veil{
  position:fixed;inset:0;z-index:2;pointer-events:none;
  background:
    radial-gradient(ellipse 120% 90% at 50% 40%,rgba(5,5,5,.38) 0%,rgba(5,5,5,.58) 60%,rgba(5,5,5,.7) 100%);
}

.grain{position:fixed;inset:-50%;z-index:99;pointer-events:none;opacity:.06;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 8s steps(8) infinite;
}
@keyframes grain{
  0%,100%{transform:translate(0,0)}
  10%{transform:translate(-5%,-10%)}
  30%{transform:translate(3%,-15%)}
  50%{transform:translate(12%,9%)}
  70%{transform:translate(-9%,4%)}
  90%{transform:translate(-1%,11%)}
}
.scanlines{position:fixed;inset:0;z-index:98;pointer-events:none;opacity:.18;mix-blend-mode:overlay;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,0) 0,rgba(255,255,255,0) 2px,rgba(255,255,255,.04) 3px,rgba(255,255,255,0) 4px);
}
.vignette{position:fixed;inset:0;z-index:97;pointer-events:none;
  background:radial-gradient(ellipse at center,transparent 48%,rgba(0,0,0,.7) 100%);
}

/* =========================================================
   CURSORE
========================================================= */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:200;border-radius:50%;
  transform:translate(-50%,-50%);will-change:transform,width,height,background,border}
.cursor-dot{width:6px;height:6px;background:var(--accent);mix-blend-mode:difference;transition:width .25s,height .25s,background .25s}
.cursor-ring{width:34px;height:34px;border:1px solid rgba(255,255,255,.6);transition:width .3s cubic-bezier(.2,.9,.2,1),height .3s cubic-bezier(.2,.9,.2,1),border-color .3s,background .3s}
body.hover .cursor-ring{width:64px;height:64px;border-color:var(--accent);background:rgba(200,255,0,.06)}
body.hover .cursor-dot{width:0;height:0}

/* =========================================================
   NAV
   Niente mix-blend-mode: sopra lo shader rendeva il link
   dell'archivio di un colore imprevedibile e quasi invisibile.
========================================================= */
nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 40px;
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  background:linear-gradient(180deg,rgba(5,5,5,.92),rgba(5,5,5,.72) 60%,transparent);
  backdrop-filter:blur(8px);
}
nav .brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
nav .brand .dot{width:8px;height:8px;background:var(--accent);border-radius:50%;box-shadow:0 0 16px var(--accent);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
nav .meta{display:flex;gap:28px;color:var(--dim)}
nav .meta span{position:relative}
nav .meta span::before{content:"› ";color:var(--accent)}

/* Link di navigazione tra home e archivio: pillola piena,
   deve essere impossibile non vederlo. */
nav .navlink{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--accent);border:1px solid rgba(200,255,0,.42);
  padding:9px 18px;border-radius:999px;white-space:nowrap;
  background:rgba(200,255,0,.05);
  transition:background .3s,border-color .3s,transform .3s,color .3s;
}
nav .navlink:hover{background:var(--accent);border-color:var(--accent);color:#000;transform:translateY(-1px)}

/* =========================================================
   TIPOGRAFIA RICORRENTE
========================================================= */
.label{
  font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.32em;color:var(--accent);
  text-transform:uppercase;margin-bottom:28px;display:flex;align-items:center;gap:12px;
}
.label::before{content:"";width:24px;height:1px;background:var(--accent)}

.h2{
  font-family:'Space Grotesk',sans-serif;font-weight:300;
  font-size:clamp(40px,6vw,86px);line-height:1.02;letter-spacing:-.02em;
  max-width:900px;text-shadow:var(--lift);
}
.h2 em{font-style:italic;font-weight:300;color:var(--accent)}
.h2 .strk{position:relative;white-space:nowrap}
.h2 .strk::after{content:"";position:absolute;left:0;right:0;top:55%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 1.2s cubic-bezier(.2,.9,.2,1)}
.reveal.shown .h2 .strk::after{transform:scaleX(1)}

/* Glifo gigante con aberrazione cromatica. La dimensione la
   decide la pagina, qui c'è solo il trattamento. */
.glyph{
  position:relative;
  font-family:'Major Mono Display','JetBrains Mono',monospace;
  line-height:.85;font-weight:400;letter-spacing:-.03em;
  background:linear-gradient(180deg,#fff 0%,#fff 55%,#888 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 80px rgba(255,255,255,.08);
  user-select:none;
}
.glyph::before,.glyph::after{
  content:attr(data-text);position:absolute;inset:0;
  background:inherit;-webkit-background-clip:text;background-clip:text;color:transparent;
  mix-blend-mode:screen;pointer-events:none;
}
.glyph::before{color:var(--accent2);transform:translate(-2px,0);clip-path:polygon(0 0,100% 0,100% 33%,0 33%);animation:gl 3.4s infinite steps(1)}
.glyph::after{color:var(--accent3);transform:translate(2px,0);clip-path:polygon(0 66%,100% 66%,100% 100%,0 100%);animation:gl 4.1s infinite steps(1) reverse}
@keyframes gl{
  0%,92%,100%{opacity:0;transform:translate(0,0)}
  93%{opacity:.8;transform:translate(-3px,1px)}
  95%{opacity:.6;transform:translate(2px,-1px)}
  97%{opacity:.9;transform:translate(-1px,2px)}
}

.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s ease,transform 1.2s cubic-bezier(.2,.9,.2,1)}
.reveal.shown{opacity:1;transform:translateY(0)}

/* =========================================================
   BLOCCHI E GRIGLIA META
========================================================= */
section.block{position:relative;z-index:5;padding:160px 40px;max-width:1280px;margin:0 auto}

.meta-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  width:min(100%,920px);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.08);
}
.meta-grid .cell{
  background:rgba(4,4,4,.72);backdrop-filter:blur(6px);
  padding:18px 16px;display:flex;flex-direction:column;gap:8px;
  font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.18em;color:var(--dim);text-transform:uppercase;
  text-align:left;
}
.meta-grid .cell .v{color:var(--ink);font-size:13px;letter-spacing:.06em}
.meta-grid .cell .v.acc{color:var(--accent)}

/* =========================================================
   PILLOLA / CTA
========================================================= */
.pill-link{
  display:inline-flex;align-items:center;gap:14px;
  font-family:'JetBrains Mono',monospace;font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.18);padding:18px 30px;border-radius:999px;
  background:rgba(4,4,4,.5);
  transition:border-color .3s,background .3s,transform .3s,color .3s;
}
.pill-link:hover{border-color:var(--accent);background:rgba(200,255,0,.08);color:var(--accent);transform:translateY(-2px)}
.pill-link .pill{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}

/* =========================================================
   FOOTER
========================================================= */
footer{
  position:relative;z-index:5;
  padding:30px 40px;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.2em;color:var(--dim);text-transform:uppercase;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(4,4,4,.5);
}
footer .l,footer .r{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
footer a{color:var(--ink);border-bottom:1px solid rgba(200,255,0,.35);padding-bottom:2px;transition:color .3s,border-color .3s}
footer a:hover{color:var(--accent);border-color:var(--accent)}
footer span.dotc{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:8px;vertical-align:middle;animation:pulse 1.6s infinite}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width:900px){
  nav .meta{display:none}
}
@media (max-width:760px){
  nav{padding:14px 20px}
  nav .navlink{padding:8px 14px;font-size:10px}
  .meta-grid{grid-template-columns:repeat(2,1fr)}
  section.block{padding:100px 22px}
  footer{flex-direction:column;gap:14px;text-align:center}
  body{cursor:auto}
  .cursor-dot,.cursor-ring{display:none}
  *{cursor:auto !important}
}



/* =========================================================
   ALLEGGERIMENTO SU MOBILE / TOUCH
   Stessa grafica, molto meno lavoro per il compositor.
   Un livello fisso in mix-blend-mode e un backdrop-filter
   costringono il browser a ricomporre cio' che sta sotto a ogni
   frame di scroll: su desktop non si nota, su telefono e' la
   causa dello scatto. Qui si toglie il lavoro, non il disegno.
========================================================= */
@media (hover:none),(max-width:760px){

  /* La grana resta in overlay: e' quella che fa "vibrare" i nastri
     di luce (sulle bande chiare modula di ~12/255, nei neri e'
     impercettibile) e senza blend cambierebbe carattere, sporcando
     i neri invece dei chiari. Sparisce invece il motivo per cui
     costava: un livello grande quattro volte la viewport, animato
     otto secondi l'uno dietro l'altro, ricomposto a ogni frame. */
  .grain{inset:0;animation:none}

  /* Le scanline in overlay su fondo quasi nero valgono meno di
     1/255 anche sopra le bande piu' accese: un livello fisso a
     schermo intero, in blend, per un effetto che non si vede.
     Sul telefono si toglie. */
  .scanlines{display:none}

  /* Niente sfocatura del fondo dietro alla nav fissa: era da rifare
     a ogni frame di scroll. Il gradiente sale di opacita' quel tanto
     che basta perche' la resa non cambi. */
  nav{
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
    background:linear-gradient(180deg,rgba(5,5,5,.96),rgba(5,5,5,.86) 60%,rgba(5,5,5,0));
  }
  .meta-grid .cell{
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
    background:rgba(4,4,4,.82);
  }
}

/* =========================================================
   MOVIMENTO RIDOTTO
   Chi lo ha chiesto al sistema operativo vede la stessa pagina,
   ferma. Il runtime (core.js) fa la sua parte: profilo light,
   quindi shader a risoluzione ridotta e a 30fps.
========================================================= */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}