/* ============================================================
   Tecnolines Italia — sistema visivo
   Colori derivati dal marchio: blu #00417E, rosso #DA0812,
   verde #33A63A, grigio #A7ACB1.
   ============================================================ */

:root{
  /* marchio */
  --navy:#00417E;
  --navy-deep:#002B55;
  --navy-abyss:#001B37;
  --red:#DA0812;
  --green:#33A63A;
  --silver:#A7ACB1;

  /* superfici */
  --paper:#FFFFFF;
  --mist:#F3F6F9;
  --mist-2:#E8EDF2;
  --ink:#0D1826;
  --body-ink:#39485A;
  --hair:#DCE3EA;
  --hair-dark:rgba(255,255,255,.16);

  /* tipografia */
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;

  /* misure */
  --gutter:clamp(20px,4.4vw,64px);
  --maxw:1280px;
  --header-h:92px;
  --sec-y:clamp(72px,8.5vw,132px);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  margin:0;background:var(--paper);color:var(--body-ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0}
ul{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--navy);outline-offset:3px}
::selection{background:var(--navy);color:#fff}

.skip{
  position:absolute;left:-9999px;top:0;z-index:200;background:var(--navy);color:#fff;
  padding:14px 22px;font-family:var(--mono);font-size:.8rem;
}
.skip:focus{left:0}

/* ---------- tipografia ---------- */
h1,h2,.display{
  font-family:var(--serif);font-weight:300;color:var(--ink);
  line-height:1.06;letter-spacing:-.018em;text-wrap:balance;
}
h1{font-size:clamp(2.35rem,4.9vw,4.35rem)}
h2{font-size:clamp(1.85rem,3.2vw,2.95rem)}
h3{font-family:var(--sans);font-weight:600;font-size:1.12rem;letter-spacing:-.01em;color:var(--ink);line-height:1.35}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
strong{font-weight:600;color:var(--ink)}

.lede{font-size:clamp(1.06rem,1.35vw,1.3rem);line-height:1.55;font-weight:400;color:var(--body-ink);text-wrap:pretty}
.small{font-size:.94rem}
.intro{font-family:var(--serif);font-weight:300;font-size:clamp(1.3rem,2vw,1.75rem);line-height:1.4;letter-spacing:-.015em;color:var(--ink);margin-bottom:1.1em;text-wrap:pretty}

.eyebrow{
  font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--navy);
  display:flex;align-items:center;gap:11px;margin-bottom:22px;
}
.eyebrow::before{content:"";width:7px;height:7px;background:var(--red);flex:none}

.on-navy .eyebrow{color:#8FB4DC}
.on-navy h1,.on-navy h2,.on-navy h3,.on-navy .display{color:#fff}
.on-navy{color:rgba(255,255,255,.76)}

/* ---------- griglia ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--sec-y)}
.section--tight{padding-block:clamp(56px,6vw,88px)}
.split{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(28px,5vw,84px);align-items:start}
.split--even{grid-template-columns:repeat(2,minmax(0,1fr))}
.measure{max-width:900px}
.measure--sm{max-width:680px}

/* filo tricolore: firma grafica ripresa dal marchio */
.flagline{height:2px;background:var(--hair);position:relative}
.flagline::after{
  content:"";position:absolute;left:0;top:0;height:2px;width:168px;
  background:linear-gradient(90deg,var(--green) 0 33.33%,#fff 33.33% 66.66%,var(--red) 66.66% 100%);
}
.flagline--right::after{left:auto;right:0}
.on-navy .flagline{background:var(--hair-dark)}

/* ---------- pulsanti ---------- */
.btn{
  --bg:var(--navy);--fg:#fff;--bd:var(--navy);
  display:inline-flex;align-items:center;gap:12px;
  background:var(--bg);color:var(--fg);border:1px solid var(--bd);
  padding:15px 28px;text-decoration:none;cursor:pointer;
  font-family:var(--mono);font-size:.76rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  transition:background .25s,color .25s,border-color .25s,transform .25s;
}
.btn:hover{--bg:var(--navy-deep);--bd:var(--navy-deep);transform:translateY(-1px)}
.btn .arw{width:16px;height:9px;flex:none;transition:transform .25s}
.btn:hover .arw{transform:translateX(4px)}
.btn--ghost{--bg:transparent;--fg:var(--navy);--bd:var(--hair)}
.btn--ghost:hover{--bg:transparent;--fg:var(--navy);--bd:var(--navy)}
.btn--light{--bg:#fff;--fg:var(--navy-deep);--bd:#fff}
.btn--light:hover{--bg:#EAF1F8;--bd:#EAF1F8;--fg:var(--navy-deep)}
.btn--outline-light{--bg:transparent;--fg:#fff;--bd:rgba(255,255,255,.4)}
.btn--outline-light:hover{--bg:transparent;--bd:#fff;--fg:#fff}
.btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

.link{
  display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);
  font-family:var(--mono);font-size:.76rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  padding-bottom:5px;border-bottom:1px solid var(--hair);transition:border-color .25s,color .25s;
}
.link:hover{border-color:var(--red)}
.link .arw{transition:transform .25s}
.link:hover .arw{transform:translateX(4px)}
.on-navy .link{color:#fff;border-color:rgba(255,255,255,.3)}
.on-navy .link:hover{border-color:var(--red)}

/* ---------- header ---------- */
.header{
  position:fixed;inset:0 0 auto;z-index:100;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--hair);
  transition:box-shadow .3s,height .3s;
}
.header__bar{
  display:flex;align-items:center;gap:clamp(16px,3vw,42px);
  height:var(--header-h);max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);
  transition:height .3s;
}
.header.is-stuck{box-shadow:0 1px 24px rgba(0,27,55,.09)}
.header.is-stuck .header__bar{height:70px}
.logo{margin-right:auto;display:block;flex:none}
.logo img{height:clamp(34px,3.6vw,44px);width:auto;transition:height .3s}
.header.is-stuck .logo img{height:32px}

.nav{display:flex;align-items:center;gap:clamp(14px,2.2vw,32px)}
.nav a{
  text-decoration:none;color:var(--ink);font-size:.94rem;font-weight:500;letter-spacing:-.005em;
  padding:8px 0;position:relative;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;background:var(--red);
  transition:width .28s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover::after,.nav a[aria-current="page"]::after{width:100%}
.nav a[aria-current="page"]{color:var(--navy)}

.langs{display:flex;align-items:center;gap:2px;padding-left:clamp(10px,2vw,26px);border-left:1px solid var(--hair)}
.langs a{
  text-decoration:none;font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;
  color:var(--silver);padding:6px 8px;transition:color .2s;
}
.langs a:hover{color:var(--navy)}
.langs a[aria-current="true"]{color:var(--navy);font-weight:500;box-shadow:inset 0 -2px 0 var(--navy)}

.burger{display:none;background:none;border:0;padding:10px;cursor:pointer;margin-left:auto}
.burger span{display:block;width:24px;height:2px;background:var(--ink);transition:transform .3s,opacity .2s}
.burger span+span{margin-top:6px}
body.nav-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--navy-abyss);color:rgba(255,255,255,.78);
  padding-top:var(--header-h);overflow:hidden;isolation:isolate;
}
.hero__art{position:absolute;inset:0;z-index:-2;opacity:.9}
.hero__art svg{width:100%;height:100%}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,var(--navy-abyss) 26%,rgba(0,27,55,.72) 55%,rgba(0,43,85,.35) 100%);
}
.hero__in{padding-block:clamp(72px,10vw,132px) clamp(84px,11vw,150px)}
.hero h1{color:#fff}
.hero .lede{color:rgba(255,255,255,.74);max-width:56ch;margin-top:28px}
.hero .eyebrow{color:#8FB4DC}
.hero__foot{position:absolute;left:0;right:0;bottom:0}

/* pagine interne */
.pagehead{background:var(--navy-abyss);color:rgba(255,255,255,.76);padding-top:var(--header-h);position:relative;overflow:hidden;isolation:isolate}
.pagehead__art{position:absolute;inset:0;z-index:-1;opacity:.55}
.pagehead__in{padding-block:clamp(56px,7vw,96px) clamp(60px,7.5vw,104px)}
.pagehead h1{color:#fff}
.pagehead .lede{color:rgba(255,255,255,.72);margin-top:24px;max-width:60ch}
.crumbs{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:26px}
.crumbs a{text-decoration:none;color:inherit}
.crumbs a:hover{color:#fff}
.crumbs span{margin-inline:10px;color:var(--red)}

/* ---------- fascia dati ---------- */
.facts{background:var(--mist);border-bottom:1px solid var(--hair)}
.facts__grid{display:grid;grid-template-columns:repeat(5,1fr);max-width:var(--maxw);margin-inline:auto}
.facts__item{padding:clamp(26px,3vw,40px) clamp(16px,2vw,32px);border-left:1px solid var(--hair)}
.facts__item:first-child{border-left:0;padding-left:var(--gutter)}
.facts__item:last-child{padding-right:var(--gutter)}
.facts__value{font-family:var(--serif);font-weight:300;font-size:clamp(1.9rem,2.8vw,2.7rem);color:var(--navy);line-height:1;letter-spacing:-.02em}
.facts__label{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--body-ink);margin-top:12px;display:block;line-height:1.45}

/* ---------- schede attività ---------- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);margin-top:clamp(36px,4vw,56px)}
.tile{background:var(--paper);padding:clamp(26px,2.6vw,38px);position:relative;text-decoration:none;display:block;transition:background .3s}
.tile::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--red);transition:width .4s cubic-bezier(.2,.7,.3,1)}
.tile:hover{background:var(--mist)}
.tile:hover::before{width:100%}
.tile__code{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;color:var(--silver)}
.tile h3{margin:18px 0 12px}
.tile p{font-size:.95rem;margin:0}

/* ---------- attività dettaglio ---------- */
.act{border-top:1px solid var(--hair);padding-block:clamp(38px,4.4vw,64px);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:clamp(24px,4vw,64px)}
.act:last-child{border-bottom:1px solid var(--hair)}
.act__code{font-family:var(--mono);font-size:.7rem;letter-spacing:.18em;color:var(--red);margin-bottom:14px}
.act h2{font-size:clamp(1.5rem,2.2vw,2.05rem)}
.act__bullets{margin-top:26px;display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px}
.act__bullets li{padding:11px 0 11px 20px;border-top:1px solid var(--hair);font-size:.93rem;position:relative}
.act__bullets li::before{content:"";position:absolute;left:0;top:19px;width:7px;height:1px;background:var(--navy)}

/* ---------- timeline ---------- */
.timeline{margin-top:clamp(32px,4vw,52px);border-top:1px solid var(--hair)}
.tl{display:grid;grid-template-columns:150px minmax(0,1fr);gap:clamp(18px,3vw,48px);padding-block:26px;border-bottom:1px solid var(--hair);position:relative}
.tl__year{font-family:var(--mono);font-size:.86rem;color:var(--navy);letter-spacing:.04em;padding-top:3px}
.tl h3{margin-bottom:8px}
.tl p{font-size:.95rem;margin:0}
.tl::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:var(--navy);transition:width .5s}
.tl:hover::after{width:100%}

/* ---------- progetti ---------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:clamp(30px,3.5vw,46px) 0 clamp(24px,3vw,36px)}
.filters button{
  background:transparent;border:1px solid var(--hair);color:var(--body-ink);cursor:pointer;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.11em;text-transform:uppercase;padding:10px 18px;
  transition:.22s;
}
.filters button:hover{border-color:var(--navy);color:var(--navy)}
.filters button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:#fff}

.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,1.8vw,26px)}
.prj{border:1px solid var(--hair);background:var(--paper);display:flex;flex-direction:column;transition:border-color .3s,transform .3s,box-shadow .3s}
.prj:hover{border-color:var(--navy);transform:translateY(-3px);box-shadow:0 18px 40px -28px rgba(0,27,55,.55)}
.prj__top{padding:clamp(22px,2.2vw,30px);flex:1}
.prj__kv{font-family:var(--serif);font-weight:300;font-size:2.4rem;color:var(--navy);line-height:1;letter-spacing:-.02em}
.prj__kv span{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--silver);margin-left:8px;vertical-align:middle}
.prj h3{margin:16px 0 8px}
.prj__place{font-family:var(--mono);font-size:.71rem;letter-spacing:.13em;text-transform:uppercase;color:var(--body-ink)}
.prj__data{border-top:1px solid var(--hair);display:grid;grid-template-columns:1fr 1fr}
.prj__data div{padding:14px clamp(22px,2.2vw,30px)}
.prj__data div:nth-child(2n){border-left:1px solid var(--hair)}
.prj__data div:nth-child(n+3){border-top:1px solid var(--hair)}
.prj__data dt{font-family:var(--mono);font-size:.62rem;letter-spacing:.13em;text-transform:uppercase;color:var(--silver)}
.prj__data dd{margin:5px 0 0;font-size:.92rem;font-weight:500;color:var(--ink)}
.note{
  font-family:var(--mono);font-size:.72rem;line-height:1.7;letter-spacing:.02em;color:var(--body-ink);
  border-left:2px solid var(--red);padding-left:16px;margin-top:clamp(28px,3vw,44px);max-width:70ch;
}

/* ---------- certificazioni ---------- */
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);margin-top:clamp(32px,3.6vw,48px)}
.cert{background:var(--paper);padding:clamp(24px,2.4vw,34px);text-decoration:none;display:flex;flex-direction:column;min-height:210px;transition:background .3s}
.cert:hover{background:var(--mist)}
.cert__code{font-family:var(--serif);font-weight:300;font-size:1.75rem;color:var(--ink);letter-spacing:-.02em}
.cert__year{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;color:var(--silver);margin-top:6px}
.cert p{font-size:.93rem;margin:16px 0 0;flex:1}
.cert__dl{font-family:var(--mono);font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--navy);margin-top:22px;display:flex;align-items:center;gap:8px}
.cert:hover .cert__dl{color:var(--red)}

/* ---------- paesi ---------- */
.countries{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.countries li{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;border:1px solid var(--hair);
  padding:9px 15px;color:var(--body-ink);
}
.countries li.is-home{background:var(--navy);border-color:var(--navy);color:#fff}

/* ---------- elenchi semplici ---------- */
.checklist li{padding:13px 0 13px 26px;border-top:1px solid var(--hair);font-size:.97rem;position:relative}
.checklist li:last-child{border-bottom:1px solid var(--hair)}
.checklist li::before{content:"";position:absolute;left:0;top:22px;width:11px;height:1px;background:var(--red)}

/* ---------- blocchi navy ---------- */
.panel-navy{background:var(--navy-deep);color:rgba(255,255,255,.78)}
.panel-mist{background:var(--mist)}
.quote{border-left:2px solid var(--red);padding-left:clamp(20px,2.5vw,34px)}
.quote h3{font-family:var(--serif);font-weight:300;font-size:clamp(1.3rem,1.9vw,1.7rem);letter-spacing:-.015em;margin-bottom:14px}

/* ---------- CTA ---------- */
.cta{background:var(--navy);color:rgba(255,255,255,.8);position:relative;overflow:hidden;isolation:isolate}
.cta__art{position:absolute;right:-4%;top:-20%;width:min(560px,52vw);z-index:-1;opacity:.22}
.cta h2{color:#fff;max-width:18ch}
.cta p{max-width:56ch;margin-top:20px}

/* ---------- form ---------- */
.form{display:grid;gap:20px}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field label{font-family:var(--mono);font-size:.67rem;letter-spacing:.14em;text-transform:uppercase;color:var(--body-ink);display:block;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:14px 16px;background:var(--paper);border:1px solid var(--hair);
  font-size:1rem;border-radius:0;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(0,65,126,.12);
}
.field[data-error] input,.field[data-error] textarea{border-color:var(--red)}
.field .err{color:var(--red);font-size:.82rem;margin-top:7px;display:none}
.field[data-error] .err{display:block}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.88rem;line-height:1.5}
.consent input{width:18px;height:18px;flex:none;margin-top:2px;accent-color:var(--navy)}
.consent a{color:var(--navy)}
.form__hint{font-size:.84rem;color:var(--silver);margin-top:-4px}

/* ---------- footer ---------- */
.footer{background:var(--navy-abyss);color:rgba(255,255,255,.62);padding-block:clamp(56px,6vw,84px) 30px;font-size:.93rem}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:clamp(28px,4vw,56px)}
.footer h4{font-family:var(--mono);font-size:.67rem;letter-spacing:.16em;text-transform:uppercase;color:#8FB4DC;font-weight:500;margin-bottom:18px}
.footer img{height:38px;width:auto;margin-bottom:20px}
.footer p{max-width:36ch;font-size:.92rem}
.footer li{margin-bottom:11px}
.footer a{text-decoration:none;transition:color .2s}
.footer a:hover{color:#fff}
.footer__legal{
  margin-top:clamp(40px,5vw,64px);padding-top:22px;border-top:1px solid var(--hair-dark);
  display:flex;flex-wrap:wrap;gap:8px 28px;justify-content:space-between;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;color:rgba(255,255,255,.42);
}

/* ---------- animazioni ---------- */
.rise{opacity:0;transform:translateY(20px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.rise.is-in{opacity:1;transform:none}
/* senza JavaScript i contenuti restano visibili: mai pagine vuote */
html:not(.js) .rise{opacity:1;transform:none}
html:not(.js) .mask{clip-path:none;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .tiles{grid-template-columns:repeat(2,1fr)}
  .projects{grid-template-columns:repeat(2,1fr)}
  .certs{grid-template-columns:repeat(2,1fr)}
  .facts__grid{grid-template-columns:repeat(3,1fr)}
  .facts__item:nth-child(4){border-left:0;padding-left:var(--gutter)}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  :root{--header-h:74px}
  .burger{display:block}
  .nav{
    position:fixed;inset:var(--header-h) 0 auto;background:var(--paper);flex-direction:column;
    align-items:stretch;gap:0;padding:8px var(--gutter) 26px;border-bottom:1px solid var(--hair);
    transform:translateY(-115%);transition:transform .4s cubic-bezier(.2,.7,.3,1);
    box-shadow:0 22px 40px -30px rgba(0,27,55,.5);
  }
  body.nav-open .nav{transform:none}
  .nav a{padding:16px 0;border-bottom:1px solid var(--hair);font-size:1.05rem}
  .langs{border-left:0;padding-left:0;padding-top:18px;gap:6px}
  .langs a{padding:8px 12px;border:1px solid var(--hair)}
  .split,.split--even,.act,.tl,.form__row,.act__bullets{grid-template-columns:1fr}
  .tl__year{font-size:.95rem}
  .header__bar{gap:12px}
  .logo{margin-right:0}
}
@media (max-width:620px){
  body{font-size:16px}
  .tiles,.projects,.certs{grid-template-columns:1fr}
  .facts__grid{grid-template-columns:repeat(2,1fr)}
  .facts__item{border-left:0;border-top:1px solid var(--hair);padding-inline:var(--gutter)}
  .facts__item:nth-child(-n+2){border-top:0}
  .footer__grid{grid-template-columns:1fr}
  .prj__data{grid-template-columns:1fr}
  .prj__data div:nth-child(2n){border-left:0}
  .prj__data div:nth-child(n+2){border-top:1px solid var(--hair)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .rise{opacity:1;transform:none}
}
@media print{
  .header,.footer,.cta,.hero__art{display:none}
  body{color:#000}
}