/* Lorenzo D'Ambrosio — foglio di stile unico.
   Due temi: "carta" (chiaro, carta da disegno) e "lavagna" (scuro).
   Tutti i colori stanno qui sotto: cambiane uno e cambia tutto il sito. */

/* --- tema carta: è quello di partenza --- */
:root{
  --paper:#F0F1EE;      /* fondo */
  --paper-2:#E7E9E4;    /* fondo delle sezioni in risalto */
  --card:#FFFFFF;
  --grid:#DDE0D9;       /* reticolo millimetrato */
  --ink:#111820;        /* testo */
  --muted:#5C6660;
  --dim:#8A928B;
  --line:#C6CBC3;
  --accent:#D2410F;     /* arancio per il testo: scurito per restare leggibile */
  --accent-br:#FF5B2E;  /* arancio pieno, per linee e riempimenti */
  --trace:17,24,32;     /* colore della traccia: matita */
  --on-ink:#F0F1EE;     /* testo sopra i bottoni pieni */

  --maxw:1140px;
  --f-display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --f-body:"Instrument Sans","Helvetica Neue",Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
}

/* --- tema lavagna: chi ha il sistema scuro lo trova già così --- */
@media (prefers-color-scheme: dark){
  :root:not([data-theme="carta"]){
    --paper:#141A1F; --paper-2:#1A2128; --card:#1E262D;
    --grid:#1F272E; --ink:#EDEFEA; --muted:#98A29B; --dim:#6E7A73;
    --line:#2E3941; --accent:#FF7A50; --accent-br:#FF5B2E;
    --trace:237,239,234;   /* la traccia diventa gesso */
    --on-ink:#141A1F;
  }
}
/* --- e chi lo sceglie col pulsante vince su tutto --- */
:root[data-theme="lavagna"]{
  --paper:#141A1F; --paper-2:#1A2128; --card:#1E262D;
  --grid:#1F272E; --ink:#EDEFEA; --muted:#98A29B; --dim:#6E7A73;
  --line:#2E3941; --accent:#FF7A50; --accent-br:#FF5B2E;
  --trace:237,239,234;
  --on-ink:#141A1F;
}

*{box-sizing:border-box}
body{
  margin:0;background:var(--paper);color:var(--ink);overflow-x:clip;
  font-family:var(--f-body);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;
  transition:background-color .25s,color .25s;
}
h1,h2,h3{font-family:var(--f-display);font-weight:800;margin:0;letter-spacing:-.025em;line-height:1.02;text-wrap:balance}
p{margin:0}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
.mono{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.03em;color:var(--dim)}
:focus-visible{outline:2px solid var(--accent-br);outline-offset:3px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:14px;z-index:99;background:var(--accent-br);color:#fff;padding:10px 16px}

/* la traccia di matita sta dietro al contenuto e non intercetta i clic */
#trace{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.layer{position:relative;z-index:1}

/* --- barra --- */
.nav{position:sticky;top:0;z-index:30;background:var(--paper);border-bottom:1px solid var(--line)}
@supports (backdrop-filter:blur(10px)){
  .nav{background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px)}
}
.nav-in{display:flex;align-items:center;height:62px;gap:22px}
.brand{font-family:var(--f-mono);font-size:13.5px;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand .caret{display:inline-block;width:7px;height:15px;background:var(--accent-br);vertical-align:-2px;margin-left:2px;animation:blink 1.05s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.nav nav{margin-left:auto;display:flex;gap:22px;align-items:center}
.nav nav a{font-size:14.5px;color:var(--muted);text-decoration:none;transition:color .16s}
.nav nav a:hover{color:var(--ink)}

/* interruttore carta / lavagna */
.theme{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:transparent;
  color:var(--muted);font-family:var(--f-mono);font-size:11px;letter-spacing:.03em;
  padding:7px 11px;cursor:pointer;transition:.16s}
.theme:hover{color:var(--ink);border-color:var(--dim)}
.theme svg{width:13px;height:13px;flex:none}
.theme .lbl{display:inline}

.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--f-body);font-weight:600;font-size:15px;
  padding:12px 22px;text-decoration:none;border:1px solid var(--ink);background:var(--ink);color:var(--on-ink);cursor:pointer;transition:.16s}
.btn:hover{background:var(--accent-br);border-color:var(--accent-br);color:#fff}
.btn-o{background:transparent;color:var(--ink)}
.btn-o:hover{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}
.btn-sm{padding:8px 16px;font-size:13.5px}

/* --- apertura --- */
.hero{padding:78px 0 64px}
.hero h1{font-size:clamp(42px,8vw,104px);max-width:15ch;margin-top:20px}
.hero .lead{margin-top:28px;max-width:56ch;font-size:19px;color:var(--muted)}
.hero .lead b{color:var(--ink);font-weight:600}
.cta{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}
.hero-foot{margin-top:58px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}

/* --- sezioni --- */
section{border-top:1px solid var(--line)}
/* la barra in cima è fissa: gli ancoraggi si fermano più in basso, sennò il titolo ci finisce sotto */
section[id],header[id]{scroll-margin-top:84px}
.sec{padding-block:88px}
.sec-head{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(28px,4vw,44px)}
.sec-sub{color:var(--muted);max-width:60ch;margin-top:16px}
.sec-sub b{color:var(--ink);font-weight:600}

/* --- lavori: tavole, non schede --- */
.plates{margin-top:52px}
.plate{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:52px 0;border-top:1px solid var(--line)}
.plate:nth-child(even) .shot{order:2}
.shot{border:1px solid var(--line);background:var(--card)}
.shot .bar{height:24px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:5px;padding:0 9px;background:var(--paper-2)}
.shot .bar i{width:6px;height:6px;border-radius:50%;background:var(--line);flex:none}
.shot .bar span{font-family:var(--f-mono);font-size:10px;color:var(--muted);margin-left:7px;overflow:hidden;white-space:nowrap}
.shot .frame{position:relative;aspect-ratio:1200/690;overflow:hidden}
.shot .frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.plate-txt .num{font-family:var(--f-mono);font-size:11.5px;color:var(--accent);margin-bottom:12px}
.plate-txt h3{font-size:29px;margin-bottom:14px}
.plate-txt p{color:var(--muted);max-width:44ch}
.specs{margin-top:22px;border-top:1px solid var(--line)}
.spec{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.spec span:first-child{font-family:var(--f-mono);font-size:11px;color:var(--dim);letter-spacing:.03em;flex:none}
.spec span:last-child{text-align:right}
.go{display:inline-block;margin-top:22px;text-decoration:none;font-weight:600;font-size:15px;border-bottom:2px solid var(--accent-br);padding-bottom:2px}

/* --- la prova --- */
.bench{background:var(--paper-2)}
.bench-in{padding-block:80px}
.ctrl{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:34px 0 24px}
.ctrl input[type=range]{
  flex:1;min-width:190px;height:26px;background:transparent;cursor:ew-resize;
  -webkit-appearance:none;appearance:none;margin:0;padding:0;border:0}
/* la guida: una linea di quota, con le tacche agli estremi */
.ctrl input[type=range]::-webkit-slider-runnable-track{height:1px;background:var(--accent-br)}
.ctrl input[type=range]::-moz-range-track{height:1px;background:var(--accent-br)}
/* il cursore: un blocchetto squadrato, non la pallina di serie */
.ctrl input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:12px;height:22px;margin-top:-11px;
  background:var(--accent-br);border:0;border-radius:1px;cursor:ew-resize;
  box-shadow:0 0 0 4px var(--paper-2)}
.ctrl input[type=range]::-moz-range-thumb{
  width:12px;height:22px;background:var(--accent-br);border:0;border-radius:1px;cursor:ew-resize;
  box-shadow:0 0 0 4px var(--paper-2)}
.ctrl input[type=range]:focus-visible::-webkit-slider-thumb{outline:2px solid var(--ink);outline-offset:2px}
.range-wrap{flex:1;min-width:190px;display:flex;align-items:center;gap:9px;color:var(--accent)}
.range-wrap .tick{width:1px;height:13px;background:var(--accent-br);flex:none}
.readout{font-family:var(--f-mono);font-size:12.5px;color:var(--accent);min-width:158px}
.ctrl-tema{margin:0 0 26px}
.seg{display:inline-flex;border:1px solid var(--line);background:var(--paper)}
.seg button{font-family:var(--f-mono);font-size:11px;letter-spacing:.03em;padding:8px 14px;
  border:0;background:transparent;color:var(--muted);cursor:pointer;transition:.16s}
.seg button+button{border-left:1px solid var(--line)}
.seg button:hover{color:var(--ink)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--on-ink)}
.stage-box{overflow:hidden}
/* Sotto una certa larghezza lo schermo simulato non ci sta davvero: viene
   rimpicciolito in scala, così anche da telefono si vede com'è il sito su
   un computer. La misura scritta resta quella vera. */
.stage{margin:0;transform-origin:top left}
.dim{margin:0 auto 10px}
.dim{display:flex;align-items:center;gap:10px;color:var(--accent)}
.dim .bar{flex:1;height:1px;background:var(--accent-br);position:relative}
.dim .bar::before,.dim .bar::after{content:"";position:absolute;top:-6px;width:1px;height:13px;background:var(--accent-br)}
.dim .bar::before{left:0}.dim .bar::after{right:0}
.dim span{font-family:var(--f-mono);font-size:11.5px;white-space:nowrap}
/* l'anteprima porta i suoi colori: così si può vedere carta e lavagna
   una accanto all'altra, senza cambiare tema a tutto il sito */
.mini[data-mini-tema="carta"]{
  --paper:#F0F1EE; --paper-2:#E7E9E4; --card:#FFFFFF;
  --ink:#111820; --muted:#5C6660; --line:#C6CBC3; --on-ink:#F0F1EE;
}
.mini[data-mini-tema="lavagna"]{
  --paper:#141A1F; --paper-2:#1A2128; --card:#1E262D;
  --ink:#EDEFEA; --muted:#98A29B; --line:#2E3941; --on-ink:#141A1F;
}
.mini{border:1px solid var(--line);background:var(--paper);overflow:hidden;color:var(--ink)}
.mini .mbar{height:32px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 11px;gap:12px;background:var(--paper-2)}
.mini .mbar b{font-family:var(--f-mono);font-size:10px;font-weight:400;color:var(--muted)}
.mini .mnav{margin-left:auto;display:flex;gap:9px;align-items:center}
.mini .mnav i{width:26px;height:5px;background:var(--line);display:block}
.mini .mnav u{width:40px;height:14px;background:var(--ink);display:block}
.mini .mbody{padding:16px}
.mini h4{font-family:var(--f-display);font-weight:800;letter-spacing:-.025em;margin:0 0 14px;line-height:1.03;font-size:24px}
.mini .cards{display:grid;gap:8px;grid-template-columns:repeat(4,1fr)}
.mini.is-tablet .cards{grid-template-columns:repeat(2,1fr)}
.mini .c{border:1px solid var(--line);aspect-ratio:1200/690;overflow:hidden;background:var(--card)}
.mini .c img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.mini.is-phone .cards{grid-template-columns:1fr}
.mini.is-phone .c:nth-child(n+3){display:none}
.mini.is-phone h4{font-size:16px}
.mini.is-phone .mnav i{display:none}
.mini.is-tablet h4{font-size:19px}
.why{color:var(--muted);margin-top:26px;max-width:62ch}
.why b{color:var(--ink);font-weight:600}

/* --- elenchi --- */
.rows{margin-top:46px;border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:190px 1fr;gap:34px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.row h3{font-size:20px;font-weight:600;margin-bottom:8px}
.row p{color:var(--muted);max-width:60ch}
.row .k{font-family:var(--f-mono);font-size:11.5px;color:var(--accent);padding-top:5px}

/* --- chi sono, contatti --- */
.two{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:40px}
.big{font-family:var(--f-display);font-size:23px;font-weight:400;line-height:1.4}
.two p{color:var(--muted);margin-bottom:16px}
label{display:block;font-family:var(--f-mono);font-size:11px;color:var(--dim);margin-bottom:6px;letter-spacing:.03em}
input,textarea{width:100%;background:var(--card);border:1px solid var(--line);color:var(--ink);
  font-family:var(--f-body);font-size:16px;padding:12px 14px;margin-bottom:18px}
textarea{min-height:120px;resize:vertical}
.hp{position:absolute;left:-9999px}
.form-msg{margin-top:14px;font-size:15px}
.form-msg.ok{color:var(--accent)}
.form-msg.err{color:var(--accent)}
.lines{margin-top:8px}
.lines div{display:flex;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);align-items:baseline}
.lines div span:first-child{font-family:var(--f-mono);font-size:11px;color:var(--dim)}
.lines a{text-decoration:none;border-bottom:2px solid var(--accent-br);padding-bottom:1px}
footer{border-top:1px solid var(--line);padding:34px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

/* --- telefono --- */
@media (max-width:700px){
  /* i comandi del banco vanno in colonna, sennò la riga esce dallo schermo */
  .ctrl{flex-direction:column;align-items:stretch;gap:10px;margin:26px 0 18px}
  .ctrl-tema{flex-direction:row;align-items:center;gap:14px;margin-bottom:22px}
  .range-wrap{min-width:0;width:100%}
  .ctrl input[type=range]{min-width:0}
  .readout{min-width:0}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  /* la barra deve starci tutta: nome più stretto, spazi ridotti */
  .nav-in{gap:12px}
  .nav nav{gap:10px}
  .brand{font-size:12px}
  .btn-sm{padding:8px 13px;font-size:13px}
  .theme{padding:7px 9px}
  .hero h1{font-size:clamp(36px,9vw,104px)}
  .hero .lead{font-size:17.5px}
  .hero-foot{justify-content:flex-start;gap:9px 22px;margin-top:44px}
  .sec,.bench-in{padding-block:52px}
  .plate{padding:38px 0}
  .spec{flex-wrap:wrap;gap:2px}
  .spec span:last-child{text-align:left}
  .big{font-size:20px}
  footer{gap:8px}
}
@media (max-width:880px){
  .plate,.two{grid-template-columns:1fr;gap:28px}
  .plate:nth-child(even) .shot{order:0}
  .row{grid-template-columns:1fr;gap:6px}
  .nav nav a:not(.btn){display:none}
  .theme .lbl{display:none}
  .sec,.bench-in{padding-block:62px}
  .hero{padding:52px 0 52px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}