/* chalco · pagina c-factory: fondo grigio chiaro, griglia bianca (scelta "grigio chiaro · griglia bianca") */
body.cs { --cs-grey: #E1E1E3; background-color: var(--cs-grey); }
body.cs::after { background-image: url("../img/griglia_grigio-chiaro.svg"); }
.cs .site-header { background: rgba(225,225,227,.92); }
.cs .nav__cstudio[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 8px; }
.cs .badge { background: var(--cs-grey); }
.cs .section + .section { padding-top: 150px; }
.cs .site-footer { background: rgba(225,225,227,.9); }

.cs-photo { position: relative; margin: 0; background: #fff; border: 1px solid var(--c-black); outline: 1px dashed rgba(14,14,16,.55); outline-offset: 8px; overflow: hidden; }
.cs-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.cs-intro { max-width: 640px; margin-top: 24px; }
.cs-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.cs-more { font-size: 13px; font-weight: 700; white-space: nowrap; padding-bottom: 12px; }
.cs-more:hover { text-decoration: underline; text-underline-offset: 4px; }
.cs-video .cs-play { position: absolute; left: 50%; top: 50%; width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; border: 1px solid #fff; background: rgba(14,14,16,.35); }
.cs-video .cs-play::after { content: ""; position: absolute; left: 22px; top: 17px; border-left: 16px solid #fff; border-top: 11px solid transparent; border-bottom: 11px solid transparent; }
.cs-tag { position: absolute; right: 12px; top: 10px; font-size: 11px; font-weight: 600; letter-spacing: .1em; background: rgba(255,255,255,.85); padding: 2px 8px; }
.cs-tc { position: absolute; right: 12px; bottom: 10px; background: rgba(255,255,255,.85); padding: 2px 6px; font-size: 11px; }
.cs .box__head span { opacity: .9; }
.cs-card__body { padding: 20px 22px 22px; display: grid; gap: 12px; }
.cs-card__body h3 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: -.035em; line-height: 1.05; }
.cs-card__body p { margin: 0; font-size: 14px; line-height: 1.6; }

/* hero */
.cs-hero { padding-top: 64px; }
.cs-hero .grid { align-items: start; }
.cs-hero__text { grid-column: 1 / span 6; display: grid; gap: 28px; align-content: start; padding-top: 24px; }
.cs-logo { width: 190px; height: auto; }
.cs-h1 { margin: 0; font-size: 72px; font-weight: 800; letter-spacing: -.045em; line-height: .98; text-wrap: balance; }
.cs-btns { display: flex; flex-wrap: wrap; gap: 14px; }
.cs-hero__a { grid-column: 7 / span 3; grid-row: 1; margin-top: 230px; aspect-ratio: 3 / 4; z-index: 2; }
.cs-hero__b { grid-column: 9 / span 4; grid-row: 1; margin-top: 0; margin-left: 40px; aspect-ratio: 3 / 4.2; }

/* 01 */
.cs-od__stage { position: relative; margin-top: 56px; padding-bottom: 40px; }
.cs-od .cs-video { width: 66%; aspect-ratio: 16 / 10; }
.cs-modes { position: absolute; right: 0; bottom: 0; width: 38%; z-index: 3; }
.cs-modes ol { margin: 0; padding: 0; list-style: none; }
.cs-modes li { display: grid; grid-template-columns: 36px 1fr; gap: 6px; padding: 16px 22px; border-top: 1px solid var(--c-line); }
.cs-modes li b { font-size: 16px; }
.cs-modes li p { margin: 4px 0 0; font-size: 13px; line-height: 1.5; }

/* 02 servizi */
.cs-row { display: grid; grid-template-columns: 5fr 4fr 3fr; gap: 24px; align-items: center; margin-top: 72px; }
.cs-row .cs-video { aspect-ratio: 16 / 10.5; }
.cs-card { margin-left: -24px; position: relative; z-index: 2; }
.cs-info { padding: 0 8%; }
.cs-plus { padding: 12px 14px; border-left: 3px solid var(--c-red); background: rgba(233,79,55,.06); font-weight: 500; }
.cs-matrix { display: grid; grid-template-columns: 4fr 7fr; gap: 48px; align-items: center; margin-top: 88px; padding: 40px; border: 1px solid var(--c-black); background: rgba(225,225,227,.55); }
.cs-matrix__text { display: grid; gap: 14px; }
.cs-matrix__text h3 { margin: 0; font-size: 32px; font-weight: 800; letter-spacing: -.04em; line-height: 1.05; }
.cs-matrix__text p { margin: 0; font-size: 15px; line-height: 1.65; }
.cs-matrix .mx { transform-box: fill-box; transform-origin: center; animation: mxIn .4s cubic-bezier(.3,1.4,.5,1) var(--d) both; animation-play-state: paused; }
.cs-matrix.is-on .mx { animation-play-state: running; }
@keyframes mxIn { from { transform: scale(0); } to { transform: none; } }

/* 03 cosa produciamo: foto sfalsate con il riquadro che esce dalla foto */
.cs-prod__grid { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0,1fr)); column-gap: 24px; row-gap: 72px; margin-top: 64px; }
.cs-pc { position: relative; margin: 0; padding-bottom: 90px; }
.cs-pc .cs-photo { aspect-ratio: 4 / 5; }
.cs-pc figcaption { position: absolute; left: 18px; right: 18px; bottom: 0; z-index: 3; }
.cs-pc figcaption .box__head span { letter-spacing: .2em; }
.cs-pc--1 { grid-column: 1 / span 4; margin-top: 60px; }
.cs-pc--2 { grid-column: 5 / span 4; margin-top: 160px; }
.cs-pc--3 { grid-column: 9 / span 4; }
.cs-pc--4 { grid-column: 2 / span 5; } .cs-pc--4 .cs-photo { aspect-ratio: 4 / 3; }
.cs-pc--5 { grid-column: 7 / span 5; margin-top: 80px; } .cs-pc--5 .cs-photo { aspect-ratio: 4 / 3.4; }

/* 04 end-to-end */
.cs-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 32px; }
.cs-tabs button { font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; padding: 12px 16px; border: 1px solid transparent; }
.cs-tabs button.is-on { background: var(--c-black); color: #fff; }
.cs-tabs button:not(.is-on):hover { border-color: var(--c-black); }
.cs-gallery { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 24px; margin-top: 40px; align-items: start; }
.cs-gallery .cs-photo { aspect-ratio: 3 / 4; }
.cs-gallery .cs-photo:nth-child(2) { margin-top: 48px; } .cs-gallery .cs-photo:nth-child(4) { margin-top: 24px; }
.cs-note { margin-top: 24px; font-size: 12px; }

/* 05 dove scattiamo */
.cs-where .grid { align-items: start; row-gap: 40px; }
.cs-where__a { grid-column: 1 / span 5; aspect-ratio: 4 / 5; }
.cs-where__text { grid-column: 7 / span 6; display: grid; gap: 22px; padding-top: 40px; }
.cs-where__b { grid-column: 8 / span 5; aspect-ratio: 16 / 10; margin-top: -40px; }
.cs-calib { max-width: 420px; }
.cs-swatches { display: grid; grid-template-columns: repeat(5, 1fr); height: 28px; border: 1px solid var(--c-black); }

/* flusso */
.cs-flow__svg { margin-top: 48px; }
.cs-duo { display: grid; gap: 72px; margin-top: 88px; }
.cs-duo__item { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; }
.cs-duo__item--rev { grid-template-columns: 7fr 5fr; }
.cs-duo__item .cs-photo { aspect-ratio: 4 / 5; }
.cs-duo__item h3 { margin: 6px 0 8px; font-size: 40px; font-weight: 800; letter-spacing: -.04em; }
.cs-duo__item p { margin: 0; font-size: 15px; line-height: 1.6; }

/* 06 portfolio */
.cs-port__grid { display: grid; grid-template-columns: repeat(12, minmax(0,1fr)); gap: 24px; margin-top: 48px; align-items: start; }
.cs-pf { margin: 0; display: grid; gap: 14px; }
.cs-pf figcaption { font-size: 11px; }
.cs-pf--1 { grid-column: 1 / span 5; } .cs-pf--1 .cs-photo { aspect-ratio: 4 / 5; }
.cs-pf--2 { grid-column: 6 / span 4; margin-top: 140px; } .cs-pf--2 .cs-photo { aspect-ratio: 3 / 4; }
.cs-pf--3 { grid-column: 10 / span 3; margin-top: 40px; } .cs-pf--3 .cs-photo { aspect-ratio: 3 / 4; }

/* contatto */
.cs-cta .grid { align-items: center; }
.cs-cta__img { grid-column: 1 / span 6; aspect-ratio: 4 / 3; }
.cs-cta__box { grid-column: 6 / span 5; position: relative; z-index: 2; margin-left: -40px; }
.cs-cta__box h2 { margin: 0 0 10px; font-size: 48px; font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.cs-cta__box .btn { justify-self: start; }

@media (max-width: 1023px) {
  .cs-h1 { font-size: 52px; }
  .cs-hero__text, .cs-where__a, .cs-where__text, .cs-where__b, .cs-cta__img, .cs-cta__box { grid-column: 1 / -1; margin: 0; }
  .cs-hero__a, .cs-hero__b { grid-column: span 3; grid-row: auto; margin-top: 0; }
  .cs-od .cs-video { width: 100%; } .cs-modes { position: relative; width: 100%; margin-top: -30px; }
  .cs-row { grid-template-columns: 1fr 1fr; } .cs-info { display: none; } .cs-card { margin-left: 0; }
  .cs-matrix, .cs-duo__item, .cs-duo__item--rev { grid-template-columns: 1fr; }
  .cs-prod__grid, .cs-port__grid { grid-template-columns: 1fr 1fr; } .cs-pc, .cs-pf { grid-column: auto !important; margin-top: 0 !important; }
  .cs-gallery { grid-template-columns: 1fr 1fr; } .cs-gallery .cs-photo { margin-top: 0 !important; }
}
@media (max-width: 767px) {
  .cs-h1 { font-size: 40px; }
  .cs-row, .cs-prod__grid, .cs-port__grid { grid-template-columns: 1fr; }
  .cs-matrix { padding: 20px; }
  .cs-head-row { flex-direction: column; align-items: flex-start; }
}
.cs-where__text { grid-template-columns: minmax(0,1fr); grid-row: 1; }
.cs-where__b { grid-row: 2; margin-top: -120px; }
.cs-calib .box__head { gap: 12px; }
.cs-where__text > *, .cs-duo__item > div > *, .cs-matrix__text > * { grid-column: auto; }

/* ---------- logo animato, scontornato */
.cs-logo { width: 240px; }
.cs-logo svg { display: block; width: 100%; height: auto; }
/* ingresso in c-factory: il logo animato a tutto schermo per un attimo, poi si apre la pagina */
.cs-intro-splash { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; background: var(--cs-grey, #E1E1E3);
  animation: csSplash 4.5s ease .2s forwards; pointer-events: none; }
.cs-intro-splash__logo { width: min(520px, 70vw); animation: csSplashLogo 4.5s cubic-bezier(.5,0,.2,1) .2s forwards; }
.cs-intro-splash__logo svg { display: block; width: 100%; height: auto; }
@keyframes csSplash { 0%, 84% { opacity: 1; visibility: visible; } 100% { opacity: 0; visibility: hidden; } }
@keyframes csSplashLogo { 0% { transform: scale(.92); opacity: 0; } 8%, 84% { transform: none; opacity: 1; } 100% { transform: translateY(-30px) scale(.9); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cs-intro-splash { display: none; } }

/* ---------- servizi sfalsati come nella tavola: foto grande, foto piccola, riquadro che le scavalca, numero e infografica */
.cs-row { display: none; }
.cs-srv { position: relative; display: grid; grid-template-columns: repeat(12, minmax(0,1fr)); column-gap: 24px; grid-template-rows: auto auto auto; margin-top: 120px; }
.cs-srv__main { grid-row: 1 / span 2; aspect-ratio: 4 / 5; }
.cs-srv__small { grid-row: 3; aspect-ratio: 4 / 3; margin-top: -110px; z-index: 2; }
.cs-srv__card { grid-row: 1 / span 2; align-self: center; z-index: 3; margin-top: 60px; }
.cs-srv__num { grid-row: 1; align-self: start; font-size: 120px; font-weight: 800; letter-spacing: -.06em; line-height: .8; }
.cs-srv__info { grid-row: 2 / span 2; align-self: start; margin-top: 24px; }
.cs-srv--l .cs-srv__main  { grid-column: 1 / span 5; }
.cs-srv--l .cs-srv__small { grid-column: 4 / span 3; }
.cs-srv--l .cs-srv__card  { grid-column: 5 / span 4; }
.cs-srv--l .cs-srv__num   { grid-column: 10 / span 3; }
.cs-srv--l .cs-srv__info  { grid-column: 10 / span 3; }
.cs-srv--r .cs-srv__main  { grid-column: 8 / span 5; }
.cs-srv--r .cs-srv__small { grid-column: 7 / span 3; }
.cs-srv--r .cs-srv__card  { grid-column: 5 / span 4; }
.cs-srv--r .cs-srv__num   { grid-column: 1 / span 3; }
.cs-srv--r .cs-srv__info  { grid-column: 1 / span 3; }
.cs-srv__card > .cs-card__body > * { grid-column: auto; }
@media (max-width: 1023px) {
  .cs-srv { grid-template-columns: 1fr 1fr; margin-top: 64px; row-gap: 16px; }
  .cs-srv > * { grid-column: auto !important; grid-row: auto !important; margin: 0 !important; }
  .cs-srv__card { grid-column: 1 / -1 !important; } .cs-srv__num, .cs-srv__info { display: none; }
}

/* ---------- matrice come infografica animata */
.cs-matrix { grid-template-columns: 3fr 8fr; background: transparent; }
.cs-matrix .mx { animation: none; }
.cs-matrix__svg .a-fade, .cs-matrix__svg .a-pop { transform-box: fill-box; transform-origin: center; }

/* ---------- cosa produciamo: riquadri in nero o bianco con bordo, niente colori ripetuti; pop up al passaggio */
.box--w { --box-c: var(--c-black); --box-bg: #fff; --box-head-ink: var(--c-black); }
.box--w .box__head { background: #fff; border-bottom: 1px solid var(--c-black); }
.cs-pc figcaption.box--k { box-shadow: 6px 6px 0 var(--c-black); }
.cs-pc figcaption.box--w { box-shadow: 6px 6px 0 var(--c-black); }
.cs-pc figcaption { transition: transform .25s ease, box-shadow .25s ease; outline: none; }
.cs-pc:hover figcaption, .cs-pc figcaption:focus-visible, .cs-pc figcaption.is-on { transform: translate(-3px,-3px); box-shadow: 10px 10px 0 var(--c-black); }
.cs-pop { position: absolute; left: 24px; right: 24px; bottom: calc(100% - 8px); z-index: 5; background: var(--c-black); color: #fff; padding: 14px 16px; display: grid; gap: 6px;
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .2s, transform .25s cubic-bezier(.2,.9,.3,1.2), visibility 0s linear .25s; pointer-events: none; }
.cs-pop::after { content: ""; position: absolute; left: 28px; top: 100%; border-left: 8px solid transparent; border-right: 8px solid transparent; border-top: 8px solid var(--c-black); }
.box--k .cs-pop { background: #fff; color: var(--c-ink); border: 1px solid var(--c-black); }
.box--k .cs-pop::after { border-top-color: #fff; }
.cs-pc:hover .cs-pop, .cs-pc figcaption:focus-within .cs-pop, .cs-pc figcaption.is-on .cs-pop { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.cs-pop p { margin: 0; }
.cs-pop__lab { font-size: 10px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; opacity: .7; }
.cs-pop__fmt { font-size: 14px; font-weight: 700; line-height: 1.35; }
.cs-pop__ch { font-family: var(--font-mono); font-size: 11px; }
@media (max-width: 1023px) { .cs-pop { position: static; opacity: 1; visibility: visible; transform: none; margin: 0 16px 16px; } .cs-pop::after { content: none; } }
.cs-matrix { grid-template-columns: 4fr 9fr; gap: 32px; }
/* matrice: titolo sopra e infografica a tutta larghezza, così i testi restano leggibili */
.cs-matrix { grid-template-columns: 1fr; gap: 28px; padding: 44px 48px; }
.cs-matrix__text { max-width: 760px; }

/* ---------- versioni per telefono */
.cs-matrix__svg--m { display: none; }
.anim-ready .a-draw-x { transform: scaleX(0); transform-origin: left center; transform-box: fill-box; }
.is-played .a-draw-x { animation: aGrowX .7s cubic-bezier(.3,.9,.3,1) var(--d,0s) both; }
@keyframes aGrowX { from { transform: scaleX(0); } to { transform: none; } }
/* "dal set al canale" e le due infografiche piccole scorrono di lato a una misura leggibile */
.cs-scroll-hint { display: none; }
@media (max-width: 767px) {
  .cs-matrix__svg--d { display: none; } .cs-matrix__svg--m { display: block; }
  .cs-matrix { padding: 20px 16px; }
  .cs-flow__svg, .cs-duo__item [data-animate] { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-right: calc(var(--gutter-x) * -1); }
  .cs-flow__svg svg { width: 980px !important; max-width: none !important; }
  .cs-duo__item [data-animate] svg { width: 600px !important; max-width: none !important; }
  .cs-scroll-hint { display: block; margin: 10px 0 0; font-size: var(--fs-label); font-weight: 700; letter-spacing: var(--ls-label); text-transform: uppercase; }
}

/* ======================================================= revisione 21.10 notte · telefono */
.cs-flow__m { display: none; }
@media (max-width: 767px) {
  .cs-flow__svg { display: none; }
  .cs-flow__m { display: block; margin: 32px calc(var(--gutter-x) * -1) 0; }
  .cs-flow__m svg { width: 100%; height: auto; }
  .cs-duo__item [data-animate] { display: none; }   /* le due infografiche piccole: restano foto e testo */
  .cs-matrix { margin-left: calc(var(--gutter-x) * -1); margin-right: calc(var(--gutter-x) * -1); border-left: 0; border-right: 0; padding: 24px 16px; }
  .cs-matrix__svg--m { margin: 0 -16px; }
}
.is-played .a-fade, .is-played .a-pop, .is-played .a-draw, .is-played .a-draw-x { animation-delay: calc(var(--d, 0s) * .45) !important; }

/* step 5d · apertura con le tre foto (orizzontali) dello studio di Milano, a collage */
.cs-hero__b { grid-column: 8 / span 5; grid-row: 1; margin: 0; aspect-ratio: 3 / 2; z-index: 1; }
.cs-hero__a { grid-column: 7 / span 4; grid-row: 1; margin: 250px 0 0 32px; aspect-ratio: 3 / 2; z-index: 2; }
.cs-hero__c { grid-column: 9 / span 4; grid-row: 1; margin: 470px 0 0 24px; aspect-ratio: 3 / 2; z-index: 3; }
@media (max-width: 1023px) {
  .cs-hero__a, .cs-hero__b { grid-column: span 3; grid-row: auto; margin: 0; }
  .cs-hero__c { grid-column: 1 / -1; grid-row: auto; margin: 0; }
}
@media (max-width: 1023px) { .cs-hero__a, .cs-hero__b, .cs-hero__c { margin-top: 32px; } }
@media (max-width: 767px) { .cs-hero__a, .cs-hero__b, .cs-hero__c { grid-column: 1 / -1; margin-top: 28px; } .cs-hero__b { margin-top: 44px; } }