/* ==========================================================================
   NM OS™ — STUDIO ENGINE · studio.css
   Sistema di scene a schermo intero per la registrazione delle lezioni.
   Design System NM OS · Unbounded / Inter / JetBrains Mono
   TEMA: chiaro predefinito (:root) · scuro sotto :root[data-theme="dark"]
   (tasto L · bottone sole/luna nell'HUD · localStorage "nmos-theme" · ?theme=dark|light).
   Regola: nessun colore hard-coded fuori dalle variabili; terminali e prompt
   restano scuri in entrambi i temi (isola scura, voluto).
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- Palette CHIARA (predefinita) ---------- */
:root{
  color-scheme:light;
  --bg:#F6F7FB; --surface:#FFFFFF; --surface2:#EEF1F7;
  --border:rgba(15,23,42,.10); --border-2:rgba(15,23,42,.18); --border-3:rgba(15,23,42,.28);
  /* lime: riempimenti sempre con testo scuro sopra; per testo/icone su fondo chiaro → --lime-ink */
  --lime:#C8FF00; --lime-h:#D9FF4D; --lime-glow:rgba(124,185,0,.30); --lime-ink:#5C8A00; --accent-ink:var(--lime-ink);
  --ink-on-accent:#05060A; --on-red:#FFFFFF;
  --violet:#6D28D9; --violet-soft:#6D28D9; --cyan:#0E7490; --orange:#C2410C;
  --red:#DC2626; --yellow:#FBBF24; --yellow-ink:#B45309; --green:#22C55E; --green-ink:#15803D;
  --text:#0B0F19; --text2:#4B5563; --muted:#8A93A6;
  --phase:#65A30D; --phase-glow:rgba(101,163,13,.30); --phase-ink:#0B0F19; --phase-name:'COSTRUISCI';
  /* ombre morbide e grigie al posto dei glow; glow solo su elementi attivi/CTA */
  --shadow:0 8px 30px rgba(15,23,42,.08);
  --frame-shadow:0 24px 60px -24px rgba(15,23,42,.28);
  --prompt-shadow:0 24px 60px -24px rgba(15,23,42,.28);
  --card-bg:var(--surface); --chip-bg:var(--surface); --hover-bg:rgba(15,23,42,.04);
  --grid-line:rgba(15,23,42,.055); --mesh-1:10%; --mesh-2:rgba(109,40,217,.07); --mesh-3:6%;
  --hud-fg:var(--text2); --hud-chip:rgba(255,255,255,.8);
  --ov-scrim:rgba(246,247,251,.92); --ov-box:rgba(255,255,255,.95); --ov-bg:rgba(246,247,251,.97); --ov-help:rgba(246,247,251,.94); --ov-shadow:0 30px 80px -30px rgba(15,23,42,.35);
  --term-bg:#0C0E16; --term-str:#FFB86B; --phone-frame:#1B1E2C;
  --display:'Unbounded',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif; --mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.2,1); --ease-out:cubic-bezier(.16,1,.3,1);
  --pad-x:7vw; --pad-y:7vh;
  /* scala tipografica per 1080p (clamp → leggibile anche in finestre più piccole) */
  --fs-h1:clamp(52px,6.2vw,104px);
  --fs-h2:clamp(38px,4vw,72px);
  --fs-h3:clamp(26px,2.2vw,40px);
  --fs-lead:clamp(20px,1.7vw,32px);
  --fs-body:clamp(18px,1.45vw,28px);
  --fs-mono:clamp(16px,1.2vw,23px);
  --fs-small:clamp(13px,.9vw,17px);
}
/* fasi (chiaro): versioni più scure per contrasto su bianco */
[data-phase="setup"]{--phase:#65A30D;--phase-glow:rgba(101,163,13,.30);--phase-ink:#0B0F19}
[data-phase="valida"]{--phase:#0891B2;--phase-glow:rgba(8,145,178,.30);--phase-ink:#0B0F19}
[data-phase="costruisci"]{--phase:#65A30D;--phase-glow:rgba(101,163,13,.30);--phase-ink:#0B0F19}
[data-phase="vendi"]{--phase:#EA580C;--phase-glow:rgba(234,88,12,.30);--phase-ink:#0B0F19}
[data-phase="duplica"]{--phase:#7C3AED;--phase-glow:rgba(124,58,237,.30);--phase-ink:#FFFFFF}
[data-phase="trasversale"]{--phase:#7C3AED;--phase-glow:rgba(124,58,237,.30);--phase-ink:#FFFFFF}

/* ---------- Palette SCURA (identica alla versione precedente) ---------- */
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#05060A; --surface:#0C0E16; --surface2:#131626;
  --border:rgba(255,255,255,.08); --border-2:rgba(255,255,255,.18); --border-3:rgba(255,255,255,.28);
  --lime:#C8FF00; --lime-h:#D9FF4D; --lime-glow:rgba(200,255,0,.35); --lime-ink:#C8FF00;
  --ink-on-accent:#05060A; --on-red:#FFFFFF;
  --violet:#8B5CF6; --violet-soft:#C4B5FD; --cyan:#00E5FF; --orange:#FF6B35;
  --red:#FF4D4D; --yellow:#FFD23F; --yellow-ink:#FFD23F; --green:#3DFF8F; --green-ink:#3DFF8F;
  --text:#F5F7FA; --text2:#A3A9B8; --muted:#6B7280;
  --phase:#C8FF00; --phase-glow:rgba(200,255,0,.35); --phase-ink:#05060A;
  --shadow:none;
  --frame-shadow:0 40px 100px -40px rgba(0,0,0,.9);
  --prompt-shadow:0 30px 80px -30px rgba(0,0,0,.8),0 0 0 1px rgba(200,255,0,.05);
  --card-bg:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01)); --chip-bg:rgba(0,0,0,.35); --hover-bg:rgba(255,255,255,.03);
  --grid-line:rgba(255,255,255,.035); --mesh-1:16%; --mesh-2:rgba(139,92,246,.14); --mesh-3:9%;
  --hud-fg:var(--muted); --hud-chip:rgba(5,6,10,.6);
  --ov-scrim:rgba(5,6,10,.92); --ov-box:rgba(12,14,22,.92); --ov-bg:rgba(5,6,10,.97); --ov-help:rgba(5,6,10,.94); --ov-shadow:0 30px 80px -30px #000;
  --term-bg:#07080E;
}
:root[data-theme="dark"] [data-phase="setup"]{--phase:#C8FF00;--phase-glow:rgba(200,255,0,.35);--phase-ink:#05060A}
:root[data-theme="dark"] [data-phase="valida"]{--phase:#00E5FF;--phase-glow:rgba(0,229,255,.35);--phase-ink:#05060A}
:root[data-theme="dark"] [data-phase="costruisci"]{--phase:#C8FF00;--phase-glow:rgba(200,255,0,.35);--phase-ink:#05060A}
:root[data-theme="dark"] [data-phase="vendi"]{--phase:#FF6B35;--phase-glow:rgba(255,107,53,.35);--phase-ink:#05060A}
:root[data-theme="dark"] [data-phase="duplica"]{--phase:#8B5CF6;--phase-glow:rgba(139,92,246,.4);--phase-ink:#05060A}
:root[data-theme="dark"] [data-phase="trasversale"]{--phase:#8B5CF6;--phase-glow:rgba(139,92,246,.4);--phase-ink:#05060A}

/* ---------- Isola scura: terminali e prompt restano scuri in entrambi i temi (voluto) ---------- */
.terminal,.prompt{
  color-scheme:dark;
  --bg:#05060A; --surface:#0C0E16; --surface2:#131626;
  --border:rgba(255,255,255,.08); --border-2:rgba(255,255,255,.18); --border-3:rgba(255,255,255,.28);
  --lime-ink:#C8FF00; --lime-glow:rgba(200,255,0,.35);
  --violet:#8B5CF6; --violet-soft:#C4B5FD; --cyan:#00E5FF; --orange:#FF6B35;
  --red:#FF4D4D; --yellow:#FFD23F; --yellow-ink:#FFD23F; --green:#3DFF8F; --green-ink:#3DFF8F;
  --text:#F5F7FA; --text2:#A3A9B8; --muted:#6B7280;
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:var(--fs-body);line-height:1.35;-webkit-font-smoothing:antialiased;overflow:hidden}
::selection{background:var(--lime);color:var(--ink-on-accent)}
a{color:inherit}
b,strong{font-weight:600;color:var(--text)}
em{font-style:normal;color:var(--phase)}
mark{background:none;color:var(--lime-ink);font-weight:600}
code{font-family:var(--mono);font-size:.92em;background:var(--surface2);border:1px solid var(--border);padding:.08em .4em;border-radius:6px}
kbd{font-family:var(--mono);font-size:.85em;background:var(--surface2);border:1px solid var(--border-2);border-bottom-width:3px;padding:.15em .55em;border-radius:8px;color:var(--text)}
::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--surface2);border-radius:99px}

/* ---------- Sfondo: gradient mesh animato + griglia tecnica ---------- */
.studio-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.studio-bg::before{content:"";position:absolute;inset:-20%;background:
  radial-gradient(40% 40% at 20% 20%,color-mix(in srgb,var(--phase) var(--mesh-1),transparent),transparent 70%),
  radial-gradient(35% 35% at 80% 30%,var(--mesh-2),transparent 70%),
  radial-gradient(45% 45% at 60% 90%,color-mix(in srgb,var(--phase) var(--mesh-3),transparent),transparent 70%);
  animation:mesh 22s ease-in-out infinite alternate;will-change:transform}
.studio-bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(70% 70% at 50% 50%,#000 30%,transparent 100%)}
@keyframes mesh{0%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(-3%,2%,0) scale(1.06)}100%{transform:translate3d(3%,-2%,0) scale(1.02)}}

/* ---------- Scene ---------- */
.studio{position:relative;z-index:1;width:100%;height:100%}
.scene{position:fixed;inset:0;display:flex;flex-direction:column;justify-content:center;gap:2.2vh;padding:var(--pad-y) var(--pad-x);opacity:0;visibility:hidden;transform:translate3d(0,14px,0) scale(.985);transition:opacity .62s var(--ease),transform .62s var(--ease),visibility 0s linear .62s;will-change:opacity,transform;overflow:hidden}
.scene.active{opacity:1;visibility:visible;transform:none;transition-delay:0s,0s,0s}
.scene[data-transition="slide"]{transform:translate3d(90px,0,0)}
.studio[data-dir="back"] .scene[data-transition="slide"]{transform:translate3d(-90px,0,0)}
.scene[data-transition="scale"]{transform:scale(1.08)}
.studio[data-dir="back"] .scene[data-transition="scale"]{transform:scale(.94)}
.scene[data-transition="slide"].active,.scene[data-transition="scale"].active{transform:none}
.scene.center{align-items:center;text-align:center}
.scene.top{justify-content:flex-start;padding-top:12vh}
.scene > .notes{display:none}

/* Elementi che entrano insieme alla scena (stagger automatico) */
.scene.active > *:not(.notes){animation:fadeUp .7s var(--ease-out) both}
.scene.active > *:nth-child(1){animation-delay:.05s}.scene.active > *:nth-child(2){animation-delay:.15s}.scene.active > *:nth-child(3){animation-delay:.25s}.scene.active > *:nth-child(4){animation-delay:.35s}.scene.active > *:nth-child(5){animation-delay:.45s}.scene.active > *:nth-child(6){animation-delay:.55s}.scene.active > *:nth-child(n+7){animation-delay:.65s}
@keyframes fadeUp{from{opacity:0;transform:translate3d(0,22px,0)}to{opacity:1;transform:none}}

/* ---------- Tipografia ---------- */
.eyebrow{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.22em;text-transform:uppercase;color:var(--phase);display:flex;align-items:center;gap:.8em}
.eyebrow::before{content:"";width:2.2em;height:2px;background:var(--phase);box-shadow:0 0 12px var(--phase-glow)}
.scene.center .eyebrow{justify-content:center}
.h1,.h2,.h3{font-family:var(--display);font-weight:800;letter-spacing:-.02em;margin:0;text-wrap:balance}
.h1{font-size:var(--fs-h1);line-height:1.02}
.h2{font-size:var(--fs-h2);line-height:1.08}
.h3{font-size:var(--fs-h3);font-weight:700;line-height:1.15}
.lead{font-size:var(--fs-lead);color:var(--text2);max-width:32ch;margin:0;line-height:1.4}
.scene.center .lead{max-width:44ch}
.lead b{color:var(--text)}
.lime{color:var(--lime-ink)} .phase-c{color:var(--phase)} .violet{color:var(--violet)} .cyan{color:var(--cyan)} .orange{color:var(--orange)} .muted{color:var(--muted)} .text2{color:var(--text2)}
.glow{text-shadow:0 0 30px var(--phase-glow)}
.cursor{display:inline-block;width:.55em;height:.95em;background:var(--lime-ink);margin-left:.08em;vertical-align:-.08em;box-shadow:0 0 18px var(--lime-glow);animation:blink 1s steps(2) infinite}
.h1 .cursor{width:.5em}
@keyframes blink{50%{opacity:0}}
.pill{display:inline-flex;align-items:center;gap:.5em;font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.12em;text-transform:uppercase;padding:.45em 1em;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text2)}
.pill.phase{border-color:color-mix(in srgb,var(--phase) 50%,transparent);color:var(--phase);box-shadow:0 0 18px var(--phase-glow)}
.pill.lime{border-color:color-mix(in srgb,var(--lime-ink) 50%,transparent);color:var(--lime-ink)}
.pill.red{border-color:color-mix(in srgb,var(--red) 50%,transparent);color:var(--red)}
.pill.violet{border-color:color-mix(in srgb,var(--violet) 60%,transparent);color:var(--violet-soft)}
.row{display:flex;gap:1em;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
.two-col{display:grid;grid-template-columns:1.1fr 1fr;gap:4vw;align-items:center}
.two-col.equal{grid-template-columns:1fr 1fr}
.stack{display:flex;flex-direction:column;gap:1.4vh}
.max-70{max-width:70vw}.max-60{max-width:60vw}.max-50{max-width:50vw}

/* ---------- Build (reveal step by step) ---------- */
.build{opacity:0;transform:translate3d(0,18px,0);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out);will-change:opacity,transform}
.build.on{opacity:1;transform:none}
.scene.active > .build{animation:none}

/* ---------- scene-title ---------- */
.scene-title .kicker{font-family:var(--mono);font-size:var(--fs-lead);color:var(--text2);letter-spacing:.02em}
.scene-title .kicker .num{color:var(--phase);font-weight:500}
.scene-title .h1{max-width:14ch}
.scene.center.scene-title .h1{max-width:18ch}
.scene-title.hero .h1{font-size:clamp(64px,7.6vw,128px)}
.wordmark{font-family:var(--display);font-weight:800;letter-spacing:-.03em}
.wordmark span{color:var(--lime-ink)}

/* ---------- scene-steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1.6vh;counter-reset:step;max-width:62vw}
.steps li{display:grid;grid-template-columns:auto 1fr;gap:1.2em;align-items:start;font-size:var(--fs-lead);line-height:1.35;padding:1.2vh 0;counter-increment:step}
.steps li::before{content:counter(step,decimal-leading-zero);font-family:var(--mono);font-size:.75em;color:var(--phase);border:1px solid color-mix(in srgb,var(--phase) 45%,transparent);border-radius:10px;padding:.35em .55em;line-height:1;margin-top:.25em;box-shadow:0 0 14px var(--phase-glow);background:var(--chip-bg)}
.steps li.on::before{background:var(--phase);color:var(--phase-ink)}
.steps li .s-body{min-width:0}
.steps li small{display:block;color:var(--text2);font-size:.78em;margin-top:.25em}
.steps.compact li{font-size:var(--fs-body);padding:.6vh 0}
.steps.icons li::before{content:attr(data-icon)}
.steps.two{display:grid;grid-template-columns:1fr 1fr;max-width:none;column-gap:4vw}

/* Cards */
.cards{display:grid;gap:1.6vw;grid-template-columns:repeat(auto-fit,minmax(min(100%,22vw),1fr))}
.cards.c2{grid-template-columns:1fr 1fr}.cards.c3{grid-template-columns:repeat(3,1fr)}.cards.c4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:2.2vh 1.6vw;display:flex;flex-direction:column;gap:.6em;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--phase);opacity:.7;box-shadow:0 0 16px var(--phase-glow)}
.card .card-k{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.18em;text-transform:uppercase;color:var(--phase)}
.card .card-t{font-family:var(--display);font-weight:700;font-size:var(--fs-h3);line-height:1.15;letter-spacing:-.01em}
.card p{margin:0;color:var(--text2);font-size:var(--fs-body)}
.card.glowing{border-color:color-mix(in srgb,var(--phase) 50%,transparent);box-shadow:0 0 40px -10px var(--phase-glow)}
.card.violet::before{background:var(--violet)} .card.red::before{background:var(--red)} .card.cyan::before{background:var(--cyan)} .card.orange::before{background:var(--orange)}

/* ---------- scene-diagram (flusso) ---------- */
.flow{display:flex;align-items:stretch;gap:0;width:100%}
.flow[data-dir="col"]{flex-direction:column;align-items:stretch;max-width:46vw}
:is(.flow,.tree) .node{flex:1;min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2vh 1.3vw;display:flex;flex-direction:column;gap:.35em;position:relative;box-shadow:var(--shadow);transition:border-color .5s,box-shadow .5s,background .5s}
:is(.flow,.tree) .node .node-k{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
:is(.flow,.tree) .node b{font-family:var(--display);font-weight:700;font-size:clamp(18px,1.5vw,28px);letter-spacing:-.01em;line-height:1.15}
:is(.flow,.tree) .node small{color:var(--text2);font-size:var(--fs-small);line-height:1.3}
:is(.flow,.tree) .node.on{border-color:color-mix(in srgb,var(--phase) 60%,transparent);box-shadow:0 0 34px -6px var(--phase-glow),inset 0 0 0 1px color-mix(in srgb,var(--phase) 25%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--phase) 10%,var(--surface)),var(--surface))}
:is(.flow,.tree) .node.on .node-k{color:var(--phase)}
:is(.flow,.tree) .node.end.on{border-color:var(--lime-ink);box-shadow:0 0 44px -6px var(--lime-glow)}
:is(.flow,.tree) .node.violet.on{border-color:var(--violet);box-shadow:0 0 34px -6px color-mix(in srgb,var(--violet) 50%,transparent)} :is(.flow,.tree) .node.violet.on .node-k{color:var(--violet-soft)}
:is(.flow,.tree) .node.orange.on{border-color:var(--orange);box-shadow:0 0 34px -6px color-mix(in srgb,var(--orange) 50%,transparent)} :is(.flow,.tree) .node.orange.on .node-k{color:var(--orange)}
:is(.flow,.tree) .node.cyan.on{border-color:var(--cyan);box-shadow:0 0 34px -6px color-mix(in srgb,var(--cyan) 50%,transparent)} :is(.flow,.tree) .node.cyan.on .node-k{color:var(--cyan)}
:is(.flow,.tree) .node.red.on{border-color:var(--red);box-shadow:0 0 34px -6px color-mix(in srgb,var(--red) 50%,transparent)} :is(.flow,.tree) .node.red.on .node-k{color:var(--red)}
.flow .link{flex:0 0 clamp(36px,3.6vw,72px);position:relative;align-self:center;height:2px;transform:none}
.flow .link::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--phase);box-shadow:0 0 12px var(--phase-glow);transition:width .45s var(--ease-out)}
.flow .link::after{content:"";position:absolute;right:-1px;top:-6px;border:7px solid transparent;border-left:9px solid var(--phase);opacity:0;transition:opacity .2s .35s}
.flow .link.on::before{width:100%}.flow .link.on::after{opacity:1}
.flow .link.build{opacity:1;transform:none}
.flow[data-dir="col"] .link{flex:0 0 clamp(26px,3vh,44px);width:2px;height:auto;align-self:center;margin:0}
.flow[data-dir="col"] .link::before{width:2px;height:0;transition:height .45s var(--ease-out)}
.flow[data-dir="col"] .link.on::before{height:100%}
.flow[data-dir="col"] .link::after{right:-6px;top:auto;bottom:-1px;border:7px solid transparent;border-top:9px solid var(--phase)}
.flow .link.loop::after{border-left-color:var(--violet)} .flow .link.loop::before{background:var(--violet);box-shadow:0 0 12px color-mix(in srgb,var(--violet) 50%,transparent)}
.flow-branch{display:grid;gap:2vh}
.flow-wrap{display:flex;flex-direction:column;gap:2.4vh}
.flow-caption{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
/* tree: nodo padre sopra e figli sotto */
.tree{display:flex;flex-direction:column;align-items:center;gap:0;width:100%}
.tree .level{display:flex;justify-content:center;gap:1.4vw;width:100%}
.tree .level .node{flex:1;max-width:26vw}
.tree .vlink{width:2px;height:clamp(22px,3vh,40px);background:linear-gradient(var(--phase),transparent);opacity:0;transition:opacity .4s}
.tree .vlink.on{opacity:1}
.tree .hbar{height:2px;width:66%;background:var(--phase);opacity:0;transition:opacity .4s;box-shadow:0 0 10px var(--phase-glow)}
.tree .hbar.on{opacity:.8}

/* ---------- scene-prompt (isola scura) ---------- */
.prompt{background:var(--term-bg);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--prompt-shadow);max-width:76vw;width:100%;color:var(--text)}
.prompt-head{display:flex;align-items:center;gap:.8em;padding:.9em 1.2em;border-bottom:1px solid var(--border);background:var(--surface);font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;color:var(--text2)}
.prompt-head .dot{width:.7em;height:.7em;border-radius:50%;background:var(--lime);box-shadow:0 0 12px var(--lime-glow)}
.prompt-head .spacer{flex:1}
.copy-btn{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;background:var(--lime);color:var(--ink-on-accent);border:0;border-radius:999px;padding:.55em 1.1em;cursor:pointer;font-weight:600;transition:transform .15s,box-shadow .2s,background .2s}
.copy-btn:hover{background:var(--lime-h);transform:translateY(-2px);box-shadow:0 0 22px var(--lime-glow)}
.copy-btn.ok{background:var(--green)}
.prompt pre{margin:0;padding:1.2em 1.4em;font-family:var(--mono);font-size:var(--fs-mono);line-height:1.5;white-space:pre-wrap;word-break:break-word;color:var(--text);max-height:62vh;overflow:auto}
.prompt pre .pl{display:block;opacity:0;transform:translateX(-8px)}
.prompt.on pre .pl{animation:lineIn .38s var(--ease-out) both;animation-delay:calc(var(--i) * 55ms)}
.prompt pre .ph{color:var(--lime-ink)}
.prompt pre .pc{color:var(--muted)}
.prompt.small pre{font-size:calc(var(--fs-mono) * .86)}
.prompt.small{max-width:60vw}
@keyframes lineIn{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:none}}
.scene.center .prompt{text-align:left}

/* ---------- scene-checklist ---------- */
.checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1.2vh;max-width:64vw}
.checklist.two{display:grid;grid-template-columns:1fr 1fr;max-width:none;column-gap:3vw}
.checklist li{display:grid;grid-template-columns:auto 1fr;gap:1em;align-items:center;font-size:var(--fs-lead);padding:1.1vh 1vw;border-radius:14px;cursor:pointer;user-select:none;transition:background .25s;position:relative}
.checklist li:hover{background:var(--hover-bg)}
.checklist li .box{width:1.35em;height:1.35em;border:2px solid var(--border-3);border-radius:8px;display:grid;place-items:center;transition:border-color .25s,background .25s,box-shadow .25s;flex:none}
.checklist li .box::after{content:"";width:.5em;height:.85em;border:solid var(--ink-on-accent);border-width:0 3px 3px 0;transform:rotate(45deg) scale(0);transition:transform .25s var(--ease-out);margin-top:-.2em}
.checklist li.done .box{background:var(--lime);border-color:var(--lime-ink);box-shadow:0 0 20px var(--lime-glow)}
.checklist li.done .box::after{transform:rotate(45deg) scale(1)}
.checklist li .txt{transition:color .3s}
.checklist li.done .txt{color:var(--text2)}
.checklist li .txt::after{content:"";position:absolute;left:0;top:50%;height:2px;width:0;background:var(--lime-ink);opacity:.6;transition:width .35s var(--ease-out);pointer-events:none;display:none}
.checklist li .key{font-family:var(--mono);font-size:.55em;color:var(--muted);position:absolute;right:1vw;top:50%;transform:translateY(-50%);border:1px solid var(--border);padding:.2em .5em;border-radius:6px}
.checklist li.done .key{opacity:.35}
.checklist li small{display:block;color:var(--muted);font-size:.72em}
.checklist.compact li{font-size:var(--fs-body);padding:.6vh 1vw}

/* ---------- scene-compare (Economico vs Completo) ---------- */
.compare{width:100%;max-width:82vw;border-collapse:separate;border-spacing:0;font-size:var(--fs-body);border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}
.compare th,.compare td{padding:1.4vh 1.3vw;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
.compare tr:last-child td{border-bottom:0}
.compare th{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.18em;text-transform:uppercase;color:var(--text2);background:var(--surface2)}
.compare th.eco{color:var(--cyan)} .compare th.pro{color:var(--lime-ink)}
.compare td:first-child{color:var(--text2);font-weight:500;width:22%}
.compare td.eco{border-left:1px solid var(--border)}
.compare td.pro{border-left:1px solid var(--border);background:color-mix(in srgb,var(--lime) 6%,transparent)}
.compare .cost{font-family:var(--mono);color:var(--text);font-weight:500;white-space:nowrap}
.compare tfoot td{background:var(--surface2);font-family:var(--mono)}
.compare tfoot td.eco{color:var(--cyan)} .compare tfoot td.pro{color:var(--lime-ink)}
.compare td small{display:block;color:var(--muted);font-size:.78em;margin-top:.2em}

/* ---------- scene-demo ---------- */
.scene-demo{background:radial-gradient(60% 60% at 50% 0%,color-mix(in srgb,var(--phase) 10%,transparent),transparent 70%)}
.demo-cta{font-family:var(--display);font-weight:800;font-size:var(--fs-h2);letter-spacing:-.02em;line-height:1.05}
.demo-cta .rec{display:inline-flex;align-items:center;gap:.4em;font-family:var(--mono);font-weight:500;font-size:.34em;letter-spacing:.2em;color:var(--red);vertical-align:middle;margin-left:.4em}
.demo-cta .rec::before{content:"";width:.8em;height:.8em;border-radius:50%;background:var(--red);box-shadow:0 0 14px var(--red);animation:blink 1.2s infinite}
.tool-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,24vw),1fr));gap:1.2vw;width:100%}
.tool{display:flex;align-items:center;gap:1em;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.6vh 1.2vw;text-decoration:none;color:var(--text);box-shadow:var(--shadow);transition:transform .2s,border-color .2s,box-shadow .2s;position:relative}
.tool:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--lime-ink) 60%,transparent);box-shadow:0 0 34px -8px var(--lime-glow)}
.tool .tool-n{font-family:var(--mono);color:var(--phase);font-size:var(--fs-small);letter-spacing:.14em;border:1px solid color-mix(in srgb,var(--phase) 40%,transparent);padding:.3em .55em;border-radius:8px;flex:none}
.tool .tool-name{font-family:var(--display);font-weight:700;font-size:clamp(17px,1.35vw,24px);letter-spacing:-.01em}
.tool .tool-what{color:var(--text2);font-size:var(--fs-small);display:block;margin-top:.2em}
.tool .tool-open{margin-left:auto;font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-on-accent);background:var(--lime);padding:.5em .9em;border-radius:999px;font-weight:600;flex:none}
.tool .tool-open::after{content:" ↗"}
.demo-steps{font-family:var(--mono);font-size:var(--fs-body);color:var(--text2);display:flex;gap:2vw;flex-wrap:wrap}
.demo-steps span::before{content:"→ ";color:var(--phase)}
.disclosure{font-size:var(--fs-small);color:var(--muted);max-width:70vw;line-height:1.4}

/* ---------- scene-compliance ---------- */
.banner{border-radius:16px;padding:2.4vh 2vw;display:grid;grid-template-columns:auto 1fr;gap:1.4vw;align-items:start;width:100%;max-width:80vw;border:1px solid}
.banner .b-icon{font-family:var(--display);font-weight:800;font-size:var(--fs-h2);line-height:1;width:1.4em;height:1.4em;display:grid;place-items:center;border-radius:14px}
.banner .b-k{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.2em;text-transform:uppercase;margin-bottom:.4em}
.banner .b-t{font-family:var(--display);font-weight:700;font-size:var(--fs-h3);line-height:1.15;margin:0 0 .4em}
.banner p{margin:0;color:var(--text);font-size:var(--fs-body)}
.banner ul{margin:.6em 0 0;padding-left:1.1em;color:var(--text);font-size:var(--fs-body);display:flex;flex-direction:column;gap:.35em}
.banner[data-level="warn"]{background:color-mix(in srgb,var(--yellow) 10%,var(--surface));border-color:color-mix(in srgb,var(--yellow) 45%,transparent);box-shadow:0 0 50px -20px color-mix(in srgb,var(--yellow) 40%,transparent)}
.banner[data-level="warn"] .b-icon{background:var(--yellow);color:var(--ink-on-accent)}
.banner[data-level="warn"] .b-k{color:var(--yellow-ink)}
.banner[data-level="danger"]{background:color-mix(in srgb,var(--red) 9%,var(--surface));border-color:color-mix(in srgb,var(--red) 50%,transparent);box-shadow:0 0 50px -20px color-mix(in srgb,var(--red) 50%,transparent)}
.banner[data-level="danger"] .b-icon{background:var(--red);color:var(--on-red)}
.banner[data-level="danger"] .b-k{color:var(--red)}
.banner[data-level="ok"]{background:color-mix(in srgb,var(--green) 8%,var(--surface));border-color:color-mix(in srgb,var(--green) 40%,transparent)}
.banner[data-level="ok"] .b-icon{background:var(--green);color:var(--ink-on-accent)}
.banner[data-level="ok"] .b-k{color:var(--green-ink)}
.no-yes{display:grid;grid-template-columns:1fr 1fr;gap:1.6vw;width:100%}
.no-yes .col{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2vh 1.4vw;box-shadow:var(--shadow)}
.no-yes .col h4{font-family:var(--mono);letter-spacing:.2em;text-transform:uppercase;font-size:var(--fs-small);margin:0 0 .8em}
.no-yes .col.no h4{color:var(--red)} .no-yes .col.yes h4{color:var(--green-ink)}
.no-yes .col ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:.5em;font-size:var(--fs-body)}
.no-yes .col.no li::before{content:"✕  ";color:var(--red)} .no-yes .col.yes li::before{content:"✓  ";color:var(--green-ink)}

/* ---------- scene-result ---------- */
.scene-result .h2{max-width:20ch}
.result-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:3vw;align-items:center;width:100%}
.result-badge{justify-self:center;width:min(30vw,34vh);aspect-ratio:1;border-radius:50%;display:grid;place-items:center;text-align:center;border:1px solid color-mix(in srgb,var(--phase) 40%,transparent);background:radial-gradient(circle at 50% 40%,color-mix(in srgb,var(--phase) 18%,transparent),transparent 70%);box-shadow:0 0 90px -20px var(--phase-glow),inset 0 0 60px -30px var(--phase-glow);position:relative}
.result-badge::before{content:"";position:absolute;inset:-14px;border-radius:50%;border:1px dashed color-mix(in srgb,var(--phase) 35%,transparent);animation:spin 40s linear infinite}
.result-badge .rb-num{font-family:var(--display);font-weight:800;font-size:clamp(56px,6vw,110px);color:var(--phase);line-height:1;text-shadow:0 0 30px var(--phase-glow)}
.result-badge .rb-lab{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.24em;text-transform:uppercase;color:var(--text2);margin-top:.6em}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- scene-quote ---------- */
.quote{font-family:var(--display);font-weight:700;font-size:clamp(34px,3.6vw,64px);line-height:1.15;letter-spacing:-.02em;max-width:24ch;margin:0;text-wrap:balance}
.quote::before{content:"“";color:var(--phase);margin-right:.1em}
.quote::after{content:"”";color:var(--phase);margin-left:.1em}
.quote-by{font-family:var(--mono);font-size:var(--fs-body);color:var(--text2);letter-spacing:.06em}
.quote-by::before{content:"— "}

/* ---------- scene-stat ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,20vw),1fr));gap:2vw;width:100%}
.stat{border-left:2px solid var(--phase);padding:1vh 0 1vh 1.4vw;box-shadow:-2px 0 20px -6px var(--phase-glow)}
.stat-num{font-family:var(--display);font-weight:800;font-size:clamp(56px,6.4vw,112px);line-height:1;letter-spacing:-.03em;color:var(--text);font-variant-numeric:tabular-nums}
.stat-num .unit{font-size:.4em;color:var(--phase);margin-left:.1em;letter-spacing:0}
.stat-lab{font-size:var(--fs-lead);color:var(--text2);margin-top:.5em;max-width:18ch;line-height:1.3}
.stat-src{font-family:var(--mono);font-size:var(--fs-small);color:var(--muted);margin-top:.5em}

/* ---------- scene-terminal (isola scura) ---------- */
.terminal{background:var(--term-bg);border:1px solid var(--border);border-radius:16px;overflow:hidden;width:100%;max-width:78vw;box-shadow:var(--frame-shadow);font-family:var(--mono);font-size:var(--fs-mono);color:var(--text)}
.term-bar{display:flex;align-items:center;gap:.6em;padding:.75em 1.1em;background:var(--surface);border-bottom:1px solid var(--border);font-size:var(--fs-small);color:var(--muted);letter-spacing:.1em}
/* semafori macOS: colori di sistema, uguali in entrambi i temi */
.term-bar i{width:.85em;height:.85em;border-radius:50%;display:inline-block;background:#FF5F57}
.term-bar i:nth-child(2){background:#FEBC2E}.term-bar i:nth-child(3){background:#28C840}
.term-bar .term-title{margin-left:.8em;text-transform:uppercase}
.term-body{padding:1.1em 1.4em;display:flex;flex-direction:column;gap:.35em;max-height:64vh;overflow:auto;line-height:1.5}
.term-line{display:none}
.term-line.on{display:block}
.term-line .term-ps{color:var(--lime-ink);margin-right:.6em;user-select:none}
.term-line .term-ps::before{content:attr(data-ps)}
.term-line .term-cmd{color:var(--text);white-space:pre-wrap}
.term-line .term-cmd.typing::after{content:"";display:inline-block;width:.55em;height:1em;background:var(--lime);vertical-align:-.15em;margin-left:.1em;animation:blink .8s steps(2) infinite}
.term-line .term-out{display:none;color:var(--text2);white-space:pre-wrap;margin:.25em 0 .6em;padding-left:0}
.term-line .term-out.show{display:block;animation:fadeUp .3s var(--ease-out) both}
.term-out .ok{color:var(--green)} .term-out .warn{color:var(--yellow)} .term-out .err{color:var(--red)} .term-out .k{color:var(--cyan)} .term-out .s{color:var(--term-str)} .term-out .dim{color:var(--muted)}
.terminal.file .term-body{gap:0}
.term-line.comment .term-cmd{color:var(--muted)}

/* ---------- Mock frames (browser / phone) ---------- */
.browser{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden;width:100%;box-shadow:var(--frame-shadow)}
.browser-bar{display:flex;align-items:center;gap:.6em;padding:.7em 1em;background:var(--surface2);border-bottom:1px solid var(--border)}
.browser-bar i{width:.8em;height:.8em;border-radius:50%;background:#FF5F57;display:inline-block}.browser-bar i:nth-child(2){background:#FEBC2E}.browser-bar i:nth-child(3){background:#28C840}
.browser-bar .url{flex:1;margin-left:.8em;font-family:var(--mono);font-size:var(--fs-small);color:var(--text2);background:var(--bg);border-radius:8px;padding:.4em .8em;border:1px solid var(--border)}
.browser-body{padding:2vh 1.6vw}
.phone{width:min(22vw,34vh);aspect-ratio:9/19;border-radius:38px;border:8px solid var(--phone-frame);background:var(--surface);overflow:hidden;position:relative;box-shadow:var(--frame-shadow),0 0 60px -20px var(--phase-glow);flex:none}
.phone::before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:34%;height:16px;background:var(--phone-frame);border-radius:99px;z-index:2}
.phone .screen{position:absolute;inset:0;padding:12% 8% 8%;display:flex;flex-direction:column;gap:.7em;font-size:clamp(11px,.85vw,15px);line-height:1.3}
.phone .screen .app-h{font-family:var(--display);font-weight:800;font-size:1.5em;letter-spacing:-.02em;line-height:1.1}
.phone .screen .app-sub{color:var(--text2);font-size:.95em}
.phone .screen .app-btn{background:var(--lime);color:var(--ink-on-accent);font-weight:600;text-align:center;border-radius:999px;padding:.7em;font-size:1em;margin-top:auto;box-shadow:0 0 20px var(--lime-glow)}
.phone .screen .app-opt{border:1px solid var(--border);border-radius:12px;padding:.7em .9em;background:var(--hover-bg)}
.phone .screen .app-opt.sel{border-color:var(--lime-ink);background:color-mix(in srgb,var(--lime) 12%,transparent)}
.phone .screen .app-bar{height:6px;border-radius:99px;background:var(--surface2);overflow:hidden}
.phone .screen .app-bar i{display:block;height:100%;background:var(--lime);width:var(--w,60%);box-shadow:0 0 10px var(--lime-glow)}
.phone .screen .app-num{font-family:var(--display);font-weight:800;font-size:2.4em;color:var(--lime-ink);line-height:1}
.phone .screen .app-face{aspect-ratio:1;border-radius:50%;border:2px dashed color-mix(in srgb,var(--cyan) 60%,transparent);margin:0 auto;width:62%;position:relative;display:grid;place-items:center;color:var(--cyan);font-family:var(--mono);font-size:.8em}
.phone .screen .app-face::after{content:"";position:absolute;left:8%;right:8%;top:50%;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:scan 2.2s ease-in-out infinite}
@keyframes scan{0%,100%{top:15%}50%{top:85%}}
.phone .screen .app-note{font-size:.72em;color:var(--muted);line-height:1.25}
.phone .screen .app-row{display:flex;justify-content:space-between;gap:.5em;border-bottom:1px solid var(--border);padding:.4em 0;font-size:.9em}
.phone .screen .app-row b{color:var(--lime-ink);font-family:var(--mono);font-weight:500}
.apps{display:flex;gap:2.4vw;justify-content:center;align-items:flex-end;width:100%}
.app-label{text-align:center;font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.16em;text-transform:uppercase;color:var(--phase);margin-top:1.2vh}

/* ---------- Big list / timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,16vw),1fr));gap:1.2vw;width:100%;position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:1.25em;height:2px;background:linear-gradient(90deg,var(--phase),transparent);opacity:.6}
.tl{padding-top:3em;position:relative}
.tl::before{content:attr(data-n);position:absolute;top:0;left:0;font-family:var(--mono);font-size:var(--fs-small);color:var(--phase-ink);background:var(--phase);border-radius:999px;padding:.45em .7em;letter-spacing:.1em;box-shadow:0 0 16px var(--phase-glow)}
.tl b{display:block;font-family:var(--display);font-weight:700;font-size:clamp(17px,1.4vw,26px);margin-bottom:.3em;line-height:1.15}
.tl p{margin:0;color:var(--text2);font-size:var(--fs-small)}

/* ---------- HUD ---------- */
.hud{position:fixed;inset:0;z-index:50;pointer-events:none;font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;color:var(--hud-fg);transition:opacity .3s}
body.hud-off .hud{opacity:0}
.hud-progress{position:absolute;top:0;left:0;height:3px;width:0;background:var(--phase);box-shadow:0 0 14px var(--phase-glow);transition:width .5s var(--ease)}
.hud-tl{position:absolute;top:2.2vh;left:2.4vw;display:flex;align-items:center;gap:1.4em}
.hud-tl .wm{font-family:var(--display);font-weight:800;font-size:1.25em;letter-spacing:-.03em;color:var(--text);text-transform:none}
.hud-tl .wm span{color:var(--lime-ink)}
.hud-tl .wm i{display:inline-block;width:.5em;height:.9em;background:var(--lime-ink);vertical-align:-.1em;margin-left:.05em;animation:blink 1s steps(2) infinite;box-shadow:0 0 10px var(--lime-glow)}
.hud-tl .mod{color:var(--phase);border:1px solid color-mix(in srgb,var(--phase) 45%,transparent);padding:.35em .8em;border-radius:999px}
.hud-tl .les{color:var(--text2)}
.hud-br{position:absolute;bottom:2.2vh;right:2.4vw;display:flex;align-items:center;gap:1.4em}
.hud-br .frag{color:var(--hud-fg)}
.hud-br .frag b{color:var(--phase);font-weight:500}
.hud-bl{position:absolute;bottom:2.2vh;left:2.4vw;display:flex;align-items:center;gap:1em}
.hud-timer{display:none;align-items:center;gap:.6em;color:var(--text2);padding:.4em .9em;border:1px solid var(--border);border-radius:999px;background:var(--hud-chip);font-variant-numeric:tabular-nums}
.hud-timer.show{display:inline-flex}
.hud-timer::before{content:"";width:.7em;height:.7em;border-radius:50%;background:var(--muted)}
.hud-timer.run{color:var(--text)}
.hud-timer.run::before{background:var(--red);box-shadow:0 0 12px var(--red);animation:blink 1.2s infinite}
.hud-hint{color:var(--hud-fg);opacity:.6}
/* bottone sole/luna (tasto L) — nell'HUD e nella finestra note */
.hud-theme{pointer-events:auto;cursor:pointer;width:2.4em;height:2.4em;border-radius:50%;border:1px solid var(--border-2);background:var(--hud-chip);color:var(--text2);display:inline-grid;place-items:center;padding:0;margin:0;font:inherit;transition:border-color .2s,color .2s,transform .2s,box-shadow .2s}
.hud-theme:hover{border-color:var(--lime-ink);color:var(--text);transform:translateY(-1px);box-shadow:0 0 18px -4px var(--lime-glow)}
.hud-theme:focus-visible{outline:2px solid var(--lime-ink);outline-offset:2px}
.hud-theme svg{width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block}
.hud-theme .ic-sun{display:none}
:root[data-theme="dark"] .hud-theme .ic-sun{display:block}
:root[data-theme="dark"] .hud-theme .ic-moon{display:none}

/* ---------- Overlay: note presentatore ---------- */
.ov{position:fixed;inset:0;z-index:80;display:none;pointer-events:none}
.ov.show{display:block;pointer-events:auto}
.ov-notes{background:linear-gradient(180deg,transparent,var(--ov-scrim) 30%);display:none;flex-direction:column;justify-content:flex-end;padding:0 var(--pad-x) 6vh}
.ov-notes .n-box{background:var(--ov-box);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:16px;padding:2.4vh 2vw;max-height:52vh;overflow:auto;box-shadow:var(--ov-shadow)}
.ov-notes .n-k{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.2em;text-transform:uppercase;color:var(--lime-ink);margin-bottom:.8em;display:flex;gap:1.4em}
.ov-notes .n-k span{color:var(--muted)}
.ov-notes .n-body{font-size:var(--fs-body);color:var(--text);line-height:1.45}
.ov-notes .n-body ul,.ov-notes .n-body ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:.45em}
.ov-notes .n-body p{margin:0 0 .6em}
.ov-notes .n-body b{color:var(--lime-ink)}
.ov-notes .n-body .say{color:var(--text2);font-style:italic}

.ov-notes.show{display:flex}
/* ---------- Overlay: griglia scene ---------- */
.ov-grid{background:var(--ov-bg);overflow:auto;padding:6vh 4vw}
.ov-grid .g-head{display:flex;align-items:baseline;gap:1.4em;margin-bottom:3vh;font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text2);font-size:var(--fs-small)}
.ov-grid .g-head b{font-family:var(--display);font-size:var(--fs-h3);color:var(--text);text-transform:none;letter-spacing:-.01em}
.g-wrap{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.4vw}
.g-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface);cursor:pointer;box-shadow:var(--shadow);transition:transform .2s,border-color .2s,box-shadow .2s;position:relative}
.g-item:hover{transform:translateY(-4px);border-color:var(--lime-ink);box-shadow:0 0 34px -8px var(--lime-glow)}
.g-item.current{border-color:var(--phase);box-shadow:0 0 30px -6px var(--phase-glow)}
.g-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.g-thumb .scene{position:absolute;top:0;left:0;opacity:1;visibility:visible;transform-origin:0 0;transition:none;animation:none;pointer-events:none}
.g-thumb .scene > *{animation:none!important}
.g-thumb .build{opacity:1;transform:none}
.g-thumb .term-line,.presenter .p-thumb .term-line{display:block}
.g-thumb .term-out,.presenter .p-thumb .term-out{display:block}
.g-thumb .link::before,.presenter .p-thumb .link::before{width:100%;height:100%}
.g-thumb .link::after,.presenter .p-thumb .link::after{opacity:1}
.g-meta{display:flex;align-items:center;gap:.8em;padding:.8em 1em;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text2);border-top:1px solid var(--border)}
.g-meta .n{color:var(--phase);font-weight:500}
.g-meta .t{color:var(--muted);margin-left:auto}

/* ---------- Overlay: help ---------- */
.ov-help{background:var(--ov-help);display:none;place-items:center}
.ov-help.show{display:grid}
.help-box{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:4vh 3vw;min-width:min(90vw,880px);box-shadow:var(--ov-shadow)}
.help-box h3{font-family:var(--display);margin:0 0 2vh;font-size:var(--fs-h3);letter-spacing:-.01em}
.help-box .keys{display:grid;grid-template-columns:1fr 1fr;gap:.9em 3em;font-size:var(--fs-body)}
.help-box .keys div{display:flex;align-items:center;gap:1em;color:var(--text2)}
.help-box .keys kbd{min-width:2.6em;text-align:center}

/* ---------- Overlay: nero / chroma (costanti di produzione, uguali in entrambi i temi) ---------- */
.ov-black{background:#000;z-index:90}
.ov-chroma{background:#00FF00;z-index:90}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:8vh;transform:translate(-50%,20px);background:var(--lime);color:var(--ink-on-accent);font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase;padding:.7em 1.3em;border-radius:999px;opacity:0;transition:.3s;z-index:100;pointer-events:none;font-weight:600;box-shadow:0 0 30px var(--lime-glow)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Modalità NOTE (secondo monitor: ?notes=1) ---------- */
body.notes-mode .studio,body.notes-mode .hud,body.notes-mode .studio-bg::after{display:none}
.presenter{display:none}
body.notes-mode{overflow:auto}
body.notes-mode .presenter{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto 1fr auto;gap:2vh 2vw;min-height:100vh;padding:4vh 4vw;position:relative;z-index:2}
.presenter .p-head{grid-column:1/-1;display:flex;align-items:center;gap:2em;font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text2);font-size:var(--fs-small)}
.presenter .p-head .wm{font-family:var(--display);font-weight:800;font-size:1.6em;color:var(--text);letter-spacing:-.03em;text-transform:none}
.presenter .p-head .wm span{color:var(--lime-ink)}
.presenter .p-clock{margin-left:auto;font-size:2.2em;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:0}
.presenter .p-timer{font-size:2.2em;color:var(--red);font-variant-numeric:tabular-nums;letter-spacing:0}
.presenter .p-timer.idle{color:var(--muted)}
.presenter .p-head .hud-theme{font-size:var(--fs-body)}
.presenter .p-now{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:3vh 2vw;display:flex;flex-direction:column;gap:1.4vh;box-shadow:var(--shadow)}
.presenter .p-k{font-family:var(--mono);font-size:var(--fs-small);letter-spacing:.2em;text-transform:uppercase;color:var(--lime-ink)}
.presenter .p-scene{font-family:var(--display);font-weight:800;font-size:clamp(28px,3vw,56px);letter-spacing:-.02em;line-height:1.1}
.presenter .p-num{font-family:var(--mono);color:var(--phase);font-size:var(--fs-lead)}
.presenter .p-notes{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:3vh 2vw;overflow:auto;font-size:clamp(20px,1.7vw,30px);line-height:1.45;box-shadow:var(--shadow)}
.presenter .p-notes ul,.presenter .p-notes ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:.6em}
.presenter .p-notes b{color:var(--lime-ink)} .presenter .p-notes .say{color:var(--text2);font-style:italic}
.presenter .p-next{grid-column:1/-1;display:flex;align-items:center;gap:1.4em;font-family:var(--mono);font-size:var(--fs-body);color:var(--text2);border-top:1px solid var(--border);padding-top:2vh}
.presenter .p-next b{color:var(--text);font-family:var(--body);font-weight:600}
.presenter .p-next .hint{margin-left:auto;color:var(--muted);font-size:var(--fs-small);letter-spacing:.14em;text-transform:uppercase}
.presenter .p-thumb{margin-top:auto;border:1px solid var(--border);border-radius:12px;overflow:hidden;aspect-ratio:16/9;position:relative;background:var(--bg)}
.presenter .p-thumb .scene{position:absolute;top:0;left:0;opacity:1;visibility:visible;transform-origin:0 0;transition:none;pointer-events:none}
.presenter .p-thumb .scene > *{animation:none!important}
.presenter .p-thumb .build{opacity:1;transform:none}

/* ---------- Responsive di sicurezza ---------- */
@media (max-aspect-ratio: 4/3){
  .two-col,.two-col.equal,.result-grid{grid-template-columns:1fr}
  .cards.c3,.cards.c4{grid-template-columns:1fr 1fr}
  .steps{max-width:none}
}
@media (prefers-reduced-motion: reduce){
  .studio-bg::before{animation:none}
}