/* Zoldan Costruzioni — modern professional rebuild.
   Hero: side-panel video that EXPANDS on scroll while the title fades and 3 metrics
   fade in; then the contained video scrubs through the construction sequence. */
:root{
  --bg:#f4f6f9; --card:#fff; --ink:#0d1320; --muted:#5a6675; --line:rgba(13,19,32,.12);
  --line-strong:rgba(13,19,32,.9);
  --brand:#163780; --accent:#1085fa; --maxw:1300px;
  /* technical-grid radius scale: small, squared corners everywhere */
  --r:3px; --r-lg:4px;
  --display:'IBM Plex Sans',system-ui,sans-serif; --sans:'IBM Plex Sans',system-ui,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.kicker{font-family:var(--mono);font-weight:500;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 .9rem}
.kicker.light{color:#7fb6ff}
.section-title{font-family:var(--display);font-weight:700;font-size:clamp(1.7rem,3.7vw,2.95rem);line-height:1.03;letter-spacing:-.025em;margin:0 0 1rem}
.section-title.light{color:#fff}
.section-sub{font-size:clamp(1rem,1.4vw,1.16rem);line-height:1.6;color:var(--muted);max-width:60ch;margin:0}
.section-sub.light{color:#aebbcd}
.section{padding:clamp(64px,9vw,128px) 0}
.section-tint{background:linear-gradient(180deg,#eef1f6,#f4f6f9)}
.section-ink{background:var(--ink);color:#fff}
.sec-head{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:end;margin-bottom:46px}
@media(max-width:860px){.sec-head{grid-template-columns:1fr;gap:14px}}

.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--display);font-weight:700;font-size:.9rem;border-radius:var(--r);padding:12px 22px;cursor:pointer;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s}
.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink)}.btn-dark:hover{background:#000}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-accent:hover{background:var(--brand);border-color:var(--brand)}
.btn-lg{padding:15px 30px;font-size:1rem}

/* ░ Nav ░ */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;padding:16px;background:linear-gradient(180deg,rgba(244,246,249,.92),rgba(244,246,249,0));backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.nav-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--r-lg);padding:10px 14px 10px 18px;box-shadow:0 1px 0 rgba(13,19,32,.04)}
.nav-logo img{height:46px;width:auto;display:block}
@media(max-width:980px){.nav-logo img{height:40px}}
.nav-links{display:flex;gap:28px;justify-content:center;align-items:center}
.nav-links>a{font-size:.92rem;font-weight:600;color:var(--muted);transition:color .2s}
.nav-links>a:hover{color:var(--ink)}
/* Progetti dropdown */
.nav-drop{position:relative}
.nav-drop__btn{display:inline-flex;align-items:center;gap:5px;font-size:.92rem;font-weight:600;color:var(--muted);transition:color .2s;cursor:pointer}
.nav-drop__btn svg{transition:transform .2s}
.nav-drop:hover .nav-drop__btn{color:var(--ink)}
.nav-drop:hover .nav-drop__btn svg{transform:rotate(180deg)}
.nav-drop__menu{position:absolute;top:100%;left:50%;transform:translate(-50%,8px);min-width:280px;padding:6px;margin-top:0;
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r-lg);box-shadow:0 24px 60px -28px rgba(13,19,32,.3);
  opacity:0;visibility:hidden;transition:opacity .2s,transform .2s;z-index:60}
/* invisible hover bridge so the cursor can travel from the button to the menu
   without crossing a dead gap that would close the dropdown */
.nav-drop__menu::before{content:"";position:absolute;left:0;right:0;top:-14px;height:16px}
.nav-drop:hover .nav-drop__menu,.nav-drop:focus-within .nav-drop__menu{opacity:1;visibility:visible;transform:translate(-50%,12px)}
.nav-drop__menu a{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 14px;border-radius:var(--r);
  font-size:.92rem;font-weight:600;color:var(--ink);transition:background .15s}
.nav-drop__menu a:hover{background:#eef2f8;color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.lang button{border:0;background:transparent;font-family:var(--display);font-weight:700;font-size:.78rem;padding:7px 11px;cursor:pointer;color:var(--muted)}
.lang button.is-active{color:var(--brand)}
/* roomier tap targets on touch devices (≥44px) */
@media(max-width:980px){.lang button{padding:12px 14px;min-height:44px}.nav-cta{min-height:44px}}

/* hamburger */
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 11px;border:1px solid var(--line);border-radius:var(--r);background:#fff;cursor:pointer}
.nav-burger span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .2s}
.nav-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* mobile slide-down menu */
.nav-mobile{max-width:var(--maxw);margin:8px auto 0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 24px 60px -20px rgba(13,19,32,.25);padding:10px;overflow:hidden}
.nav-mobile__links{display:flex;flex-direction:column}
.nav-mobile__links>a,.nav-mobile__label{display:block;font-family:var(--display);font-weight:700;font-size:1rem;color:var(--ink);padding:13px 12px;border-radius:var(--r)}
.nav-mobile__links>a:active,.nav-mobile__links>a:hover{background:#eef2f8;color:var(--brand)}
.nav-mobile__group{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:4px 0;padding:6px 0}
.nav-mobile__label{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding-bottom:4px}
.nav-mobile__sub{display:block;font-size:.95rem;font-weight:600;color:var(--ink);padding:10px 12px 10px 22px;border-radius:var(--r)}
.nav-mobile__sub:active,.nav-mobile__sub:hover{background:#eef2f8;color:var(--brand)}
@media(max-width:980px){.nav-links{display:none}.nav-inner{grid-template-columns:auto 1fr auto}.nav-burger{display:flex}}
@media(max-width:560px){.nav-cta{display:none}}
@media(min-width:981px){.nav-mobile{display:none}}

/* ░ HERO expand-on-scroll ░
   --grow 0..1 drives the expansion; --scrub drives the video frame.
   The pin is sticky; the stage height provides the scroll runway. */
.hero-stage{position:relative;height:480vh}
.hero-pin{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;align-items:center}
.hero-inner{max-width:var(--maxw);margin:0 auto;padding:104px 28px 40px;width:100%;display:grid;
  grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;position:relative;min-height:78vh}

.hero-copy{position:relative;z-index:2;opacity:calc(1 - var(--grow,0)*1.7);transform:translateY(calc(var(--grow,0)*-26px));transition:opacity .1s linear;pointer-events:none}
.hero-copy .kicker{margin-top:0;font-size:.78rem}
.hero-title{font-family:var(--display);font-weight:700;font-size:clamp(2.8rem,6.2vw,5.4rem);line-height:.96;letter-spacing:-.04em;margin:.3rem 0 1.4rem;display:flex;flex-direction:column}
.hero-title .acc{color:var(--brand)}
.hero-sub{font-size:clamp(1.05rem,1.5vw,1.32rem);line-height:1.55;color:var(--muted);max-width:46ch;margin:0 0 1.9rem}
.hero-cta-row{display:flex;gap:12px;flex-wrap:wrap;pointer-events:auto}

/* Expanding frame: absolutely positioned INSIDE .hero-inner so it never escapes the
   pin's clip box (that was the crop). It animates from the right column to FULL container
   width as --grow goes 0->1. The video keeps its native aspect (contain-drawn) so the
   whole blueprint — including right & bottom edges — is always visible. */
.hero-frame{position:absolute;z-index:3;top:50%;transform:translateY(-50%);
  /* left edge slides from start-of-right-column (≈50%+gap/2) to 0; right edge pinned to 0 */
  left:calc((50% + 22px) * (1 - var(--grow,0)));
  right:0;
  background:var(--card);border:1px solid var(--line);
  border-radius:calc(18px + var(--grow,0)*8px);box-shadow:0 44px 100px -34px rgba(22,55,128,.38);
  overflow:hidden;transition:none}
.frame-bar{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid var(--line);background:#fbfbfd;opacity:calc(1 - var(--grow,0));height:calc(44px - var(--grow,0)*44px);overflow:hidden;transition:none}
.frame-bar__rec{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-weight:600;font-size:.66rem;letter-spacing:.16em;color:var(--muted)}
.frame-bar__rec i{width:8px;height:8px;border-radius:50%;background:#e23;display:inline-block;animation:recblink 1.6s ease-in-out infinite}
@keyframes recblink{0%,100%{opacity:1}50%{opacity:.25}}
.frame-tag{margin-left:auto;font-family:var(--mono);font-weight:500;font-size:.72rem;letter-spacing:.02em;color:var(--muted)}
/* native aspect of the blueprint frames (1280x712); capped in height so a full-width
   frame still fits the viewport — contain-draw letterboxes rather than crops. */
.hero-video{position:relative;background:#0c0f14;overflow:hidden;aspect-ratio:1280/712;max-height:calc(100vh - 200px)}
.hero-video canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.vid-phase{position:absolute;top:16px;left:16px;display:flex;align-items:baseline;gap:.45rem;color:#fff;background:rgba(8,12,18,.45);backdrop-filter:blur(8px);padding:6px 12px;border-radius:999px;font-family:var(--display);opacity:calc(1 - var(--grow,0)*.4)}
.vid-phase__num{color:#7fb6ff;font-size:.74rem;font-weight:700}.vid-phase__name{font-size:.88rem;font-weight:600}
/* persistent project caption + details button over the hero video (stays visible the whole scroll) */
.vid-caption{position:absolute;left:0;right:0;bottom:0;z-index:4;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:34px 20px 18px;background:linear-gradient(to top,rgba(6,9,14,.82),rgba(6,9,14,.46) 55%,transparent);pointer-events:none}
.vid-caption__name{color:#fff;font-family:var(--display);font-weight:700;font-size:clamp(.95rem,1.5vw,1.18rem);letter-spacing:-.01em;text-shadow:0 1px 12px rgba(0,0,0,.5)}
.vid-caption__btn{pointer-events:auto;flex:none;display:inline-flex;align-items:center;gap:.4rem;background:#fff;color:var(--ink);
  font-weight:600;font-size:.85rem;padding:9px 16px;border-radius:999px;text-decoration:none;transition:transform .18s ease,background .18s ease;white-space:nowrap}
.vid-caption__btn:hover{transform:translateY(-1px);background:#eaf3ff}
.vid-progress{height:4px;background:#e3e5ec}.vid-progress i{display:block;height:100%;width:0;background:var(--accent)}
@media(max-width:880px){
  .hero-inner{grid-template-columns:1fr;min-height:auto}
  .hero-copy{display:none}
  .hero-frame{position:relative;top:auto;transform:none;left:0;right:auto;width:100%}
}

/* ░ Static mobile hero (body.hero-static) — no scroll-scrub video on phones.
   Instead of the desktop "REC" scrubber card, render ONE representative still
   (frame-0001, the intact viaduct) as a full-bleed COVER background with a dark
   overlay and the headline/CTA on top. Normal document scroll, no 194-frame preload. */
body.hero-static .hero-stage{height:auto}
body.hero-static .hero-pin{position:relative;height:auto;min-height:88vh;overflow:hidden;display:flex;align-items:center;
  padding:118px 0 56px;
  background:#0c0f14 url('hero/frames/frame-0001.webp') center/cover no-repeat}
/* dark overlay so white copy stays legible over the photo */
body.hero-static .hero-pin::before{content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(8,12,20,.62) 0%,rgba(8,12,20,.5) 40%,rgba(8,12,20,.78) 100%)}
body.hero-static .hero-inner{grid-template-columns:1fr;min-height:auto;gap:0;padding:0 28px;position:relative;z-index:1}
body.hero-static .hero-copy{display:block;opacity:1;transform:none;pointer-events:auto;color:#fff}
body.hero-static .hero-copy .kicker{color:#7fb6ff}
body.hero-static .hero-title{color:#fff}
body.hero-static .hero-title .acc{color:#7fb6ff}
body.hero-static .hero-sub{color:#d6dfec;max-width:38ch}
body.hero-static .hero-cta-row .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
body.hero-static .hero-cta-row .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
/* the whole scrubber card + its chrome is irrelevant on the static hero */
body.hero-static .hero-frame,
body.hero-static .hero-scrollhint{display:none}

/* single metric that fades IN over the expanded video, anchored to the LEFT column.
   JS swaps the number/label/desc one at a time (1200 -> 290 -> 45). */
.hero-metric{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
  width:min(46%,520px);padding:0 0 0 7%;pointer-events:none;color:#fff;
  opacity:calc((var(--grow,0) - .55)*2.6);
  background:linear-gradient(90deg,rgba(8,14,26,.72) 0%,rgba(8,14,26,.5) 45%,rgba(8,14,26,0) 100%);}
.hero-metric .m-num{font-family:var(--display);font-weight:700;font-size:clamp(3rem,7vw,6rem);line-height:.92;letter-spacing:-.03em}
.hero-metric .m-num sup{color:#7fb6ff;font-size:.42em;vertical-align:super;font-weight:700}
.hero-metric .m-lab{font-family:var(--display);font-weight:700;font-size:clamp(1.1rem,1.8vw,1.6rem);margin-top:10px;color:#eaf3ff}
.hero-metric .m-desc{font-size:.92rem;line-height:1.5;color:#c3d0e2;margin-top:12px;max-width:38ch}
/* swap animation: JS toggles .swap to retrigger */
.hero-metric .m-num,.hero-metric .m-lab,.hero-metric .m-desc{transition:opacity .35s ease, transform .35s ease}
.hero-metric.swapping .m-num,.hero-metric.swapping .m-lab,.hero-metric.swapping .m-desc{opacity:0;transform:translateY(10px)}
@media(max-width:899px){.hero-metric{width:88%;padding-left:8%}.hero-metric .m-desc{display:none}}

.hero-scrollhint{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.3rem;color:var(--muted);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;opacity:calc(1 - var(--grow,0)*3);animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,6px)}}

/* labels overlay (inside video) */
.labels{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:var(--labels-on,0)}
.labels .lbl line,.labels .cartiglio rect{stroke:#7fb6ff;stroke-width:1.2}
.labels .lbl circle{fill:#7fb6ff}
.labels .lbl text{fill:#eaf3ff;font-family:var(--display);font-size:18px;font-weight:600;letter-spacing:.04em;paint-order:stroke;stroke:rgba(6,12,22,.9);stroke-width:4.5px}
.labels .cartiglio rect{fill:rgba(6,14,26,.74)}
.labels .cartiglio text{fill:#cfe4ff;font-family:var(--display);paint-order:stroke;stroke:rgba(6,12,22,.9);stroke-width:2.5px}
.labels .cartiglio .ct1{font-size:15px;font-weight:700}.labels .cartiglio .ct2{font-size:12px;fill:#7fb6ff}
.labels .lbl,.labels .cartiglio{opacity:0;transform:translateY(6px);transition:opacity .45s,transform .45s;transition-delay:calc(var(--d)*70ms)}
.labels[data-show="1"] .lbl,.labels[data-show="1"] .cartiglio{opacity:1;transform:none}
.labels-list{position:absolute;left:12px;right:12px;bottom:12px;margin:0;padding:0;list-style:none;display:none;flex-wrap:wrap;gap:6px;pointer-events:none;opacity:var(--labels-on,0)}
.labels-list li{font-family:var(--display);font-size:.68rem;font-weight:600;color:#eaf3ff;background:rgba(6,14,26,.66);border:1px solid rgba(127,182,255,.4);border-radius:999px;padding:4px 9px;opacity:0;transform:translateY(6px);transition:opacity .4s,transform .4s;transition-delay:calc(var(--d)*60ms)}
.labels-list .ll-cart{color:#7fb6ff;border-color:rgba(127,182,255,.6)}
.labels-list[data-show="1"] li{opacity:1;transform:none}
@media(max-aspect-ratio:1/1),(max-width:760px){.labels{display:none}.labels-list{display:flex}}

/* ░ Featured projects carousel ("Progetti in evidenza") ░ */
.featured{padding-top:clamp(40px,6vw,80px)}
.featured-viewport{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#0c0f14;
  box-shadow:none;border:1px solid var(--line)}
.featured-track{display:flex;transition:transform .6s cubic-bezier(.22,.61,.36,1);will-change:transform}
.featured-slide{flex:0 0 100%;display:grid;grid-template-columns:1.25fr 1fr;min-height:0;color:#fff;cursor:pointer}
.featured-slide__media{position:relative;min-height:380px;background:#10141c}
.featured-slide__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 6s ease}
.featured-slide:hover .featured-slide__media img{transform:scale(1.05)}
.featured-slide__body{display:flex;flex-direction:column;justify-content:center;gap:8px;padding:clamp(26px,3.5vw,52px);
  background:linear-gradient(180deg,#11203f,#0b1733)}
.featured-slide__cat{font-family:var(--mono);font-weight:500;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:#7fb6ff}
.featured-slide__title{font-family:var(--display);font-weight:700;font-size:clamp(1.5rem,2.8vw,2.3rem);line-height:1.06;letter-spacing:-.02em;margin:4px 0 0}
.featured-slide__loc{margin:0;color:#aec3e6;font-size:.95rem;font-weight:600}
.featured-slide__desc{margin:8px 0 0;color:#c3d0e2;font-size:.98rem;line-height:1.6;max-width:48ch}
.featured-slide__cta{margin-top:14px;font-family:var(--display);font-weight:700;font-size:.86rem;letter-spacing:.03em;
  text-transform:uppercase;color:#fff;transition:gap .2s}
.featured-slide:hover .featured-slide__cta{color:#7fb6ff}
.featured-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:3;display:flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.28);background:rgba(7,11,18,.4);color:#fff;cursor:pointer;
  backdrop-filter:blur(4px);transition:background .2s,border-color .2s,transform .2s}
.featured-nav:hover{background:rgba(7,11,18,.7);border-color:rgba(255,255,255,.55)}
.featured-nav:active{transform:translateY(-50%) scale(.93)}
.featured-nav--prev{left:14px}.featured-nav--next{right:14px}
.featured-dots{display:flex;justify-content:center;gap:10px;margin-top:22px}
.featured-dot{width:10px;height:10px;border-radius:50%;border:0;padding:0;cursor:pointer;background:rgba(13,19,32,.22);transition:background .25s,transform .25s}
.featured-dot.is-active{background:var(--accent);transform:scale(1.25)}
.featured-dot:hover{background:rgba(13,19,32,.4)}
.featured-dot.is-active:hover{background:var(--accent)}
.featured :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:760px){
  .featured-slide{grid-template-columns:1fr}
  .featured-slide__media{min-height:220px}
  /* on the stacked mobile card the body text sits below the image, so anchor the
     nav arrows over the IMAGE (not the card mid-point, where they'd cover the title) */
  .featured-nav{top:110px;transform:none;width:44px;height:44px}
  .featured-nav:active{transform:scale(.93)}
  .featured-nav--prev{left:8px}.featured-nav--next{right:8px}
  /* enlarge the carousel dots' tap area without changing the visible dot size */
  .featured-dots{gap:6px}
  .featured-dot{position:relative}
  .featured-dot::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px}
}

/* ░ Services (clickable icon cards) ░ */
/* Services — technical "spec sheet" / blueprint-legend look: hairline-ruled cells,
   numbered index, monospace numerals, ink-fill on hover. Deliberately NOT floating
   rounded pastel cards. */
.svc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--ink);
  border-radius:4px;overflow:hidden;background:var(--ink)}
.svc-card{position:relative;display:flex;flex-direction:column;text-align:left;background:var(--card);
  padding:30px 24px 26px;cursor:pointer;text-decoration:none;color:inherit;
  border-right:1px solid var(--line);transition:background .28s ease,color .28s ease}
.svc-card:last-child{border-right:0}
.svc-card__no{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.12em;color:var(--accent);
  padding-bottom:14px;margin-bottom:18px;border-bottom:1px solid var(--line);transition:color .28s ease,border-color .28s ease}
.svc-card .ico{width:42px;height:42px;color:var(--brand);display:flex;align-items:center;justify-content:flex-start;margin-bottom:16px;transition:color .28s ease}
.svc-card .ico svg{width:34px;height:34px}
.svc-card h3{font-family:var(--display);font-weight:700;font-size:1.04rem;margin:0 0 .55rem;letter-spacing:-.01em;line-height:1.2}
.svc-card p{margin:0;color:var(--muted);font-size:.875rem;line-height:1.55;transition:color .28s ease}
.svc-card .more{margin-top:auto;padding-top:18px;font-family:var(--mono);font-weight:500;font-size:.74rem;
  letter-spacing:.04em;color:var(--ink);display:inline-flex;align-items:center;gap:.4rem}
.svc-card .more span{transition:transform .2s ease}
/* hover: the cell inks over — reads like a selected row on a technical drawing */
.svc-card:hover{background:var(--ink);color:#fff}
.svc-card:hover .svc-card__no{color:#7fb6ff;border-color:rgba(255,255,255,.18)}
.svc-card:hover .ico{color:#fff}
.svc-card:hover p{color:#b4c0d4}
.svc-card:hover .more{color:#fff}
.svc-card:hover .more span{transform:translateX(4px)}
.svc-card:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
@media(max-width:1100px){.svc-grid{grid-template-columns:repeat(2,1fr)}
  .svc-card{border-bottom:1px solid var(--line)}
  .svc-card:nth-child(2n){border-right:0}}
@media(max-width:560px){.svc-grid{grid-template-columns:1fr}
  .svc-card{border-right:0}}

/* ░ Projects — expanding-panel accordion (Velar-style) ░ */
.proj-accordion{display:flex;gap:12px;height:min(64vh,520px);width:100%}
.proj-panel{position:relative;flex:1 1 0;min-width:0;border-radius:var(--r-lg);overflow:hidden;cursor:pointer;
  background:#222;
  /* entrance reveal: collapsed -> open */
  transform:scaleX(var(--reveal,1));transform-origin:left center;
  transition:flex-grow .6s cubic-bezier(.22,.61,.36,1), flex-basis .6s cubic-bezier(.22,.61,.36,1), box-shadow .4s}
.proj-panel.is-active{flex-grow:6.5}
.proj-accordion.ready .proj-panel{--reveal:1}
.proj-panel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 6s ease, filter .5s}
.proj-panel.is-active img{transform:scale(1.06)}
.proj-panel:not(.is-active) img{filter:saturate(.7) brightness(.78)}
.proj-panel .ov{position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,14,26,.9) 0%,rgba(8,14,26,.2) 50%,rgba(8,14,26,.05) 100%);
  display:flex;flex-direction:column;justify-content:flex-end;padding:22px;color:#fff}
/* collapsed: vertical label only; active: full caption */
.proj-panel .cat{font-family:var(--mono);font-weight:500;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:#7fb6ff;margin-bottom:6px;opacity:0;transform:translateY(8px);transition:opacity .4s .1s,transform .4s .1s}
.proj-panel h3{font-family:var(--display);font-weight:700;font-size:1.3rem;margin:0 0 4px;line-height:1.08;opacity:0;transform:translateY(8px);transition:opacity .4s .15s,transform .4s .15s;white-space:nowrap}
.proj-panel .loc{font-size:.88rem;color:#cdd8e6;margin:0;opacity:0;transform:translateY(8px);transition:opacity .4s .2s,transform .4s .2s;white-space:nowrap}
.proj-panel .desc{font-size:.9rem;line-height:1.5;color:#dde6f1;margin:10px 0 0;max-width:46ch;opacity:0;transform:translateY(8px);transition:opacity .4s .25s,transform .4s .25s}
.proj-panel.is-active .cat,.proj-panel.is-active h3,.proj-panel.is-active .loc,.proj-panel.is-active .desc{opacity:1;transform:none}
/* vertical spine label shown when collapsed */
.proj-panel .spine{position:absolute;left:0;bottom:0;padding:18px;writing-mode:vertical-rl;transform:rotate(180deg);
  font-family:var(--display);font-weight:700;font-size:.82rem;letter-spacing:.04em;color:#fff;white-space:nowrap;
  text-shadow:0 2px 10px rgba(0,0,0,.6);opacity:1;transition:opacity .3s}
.proj-panel.is-active .spine{opacity:0}
@media(max-width:760px){
  .proj-accordion{flex-direction:column;height:auto}
  .proj-panel{flex:none;height:84px;transition:height .55s cubic-bezier(.22,.61,.36,1)}
  .proj-panel.is-active{height:340px}
  .proj-panel .spine{writing-mode:horizontal-tb;transform:none;left:0;bottom:0;padding:0 0 0 0;top:50%;translate:18px -50%}
}

/* ░ Project TYPE rows (one accordion per work type) ░ */
.type-rows{display:flex;flex-direction:column;gap:40px}
.type-row{}
.type-row__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px;cursor:pointer}
.type-row__title{font-family:var(--display);font-weight:700;font-size:clamp(1.2rem,2.2vw,1.7rem);letter-spacing:-.02em;margin:0;color:var(--ink)}
.type-row__title:hover{color:var(--brand)}
.type-row__link{font-family:var(--display);font-weight:700;font-size:.8rem;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);white-space:nowrap}
.type-row .proj-accordion{height:min(46vh,380px)}
@media(max-width:760px){.type-row .proj-accordion{height:auto}}

/* ░ Blog / case studies ░ */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.blog-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:border-color .25s}
.blog-card:hover{border-color:var(--line-strong)}
.blog-card .ph{aspect-ratio:16/10;overflow:hidden;background:#ddd}
.blog-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.blog-card:hover .ph img{transform:scale(1.05)}
.blog-card .bd{padding:20px}
.blog-card .date{font-family:var(--mono);font-weight:500;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.blog-card h3{font-family:var(--display);font-weight:700;font-size:1.1rem;margin:8px 0 8px;line-height:1.2}
.blog-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}
@media(max-width:960px){.blog-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.blog-grid{grid-template-columns:1fr}}

/* ░ Detail view (category / project / blog post) ░ */
#detail-view{padding-top:104px;min-height:100vh}
.dv-hero{position:relative;padding:48px 0 36px;border-bottom:1px solid var(--line)}
.dv-back{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:700;font-size:.84rem;color:var(--ink);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:9px 18px 9px 14px;margin-bottom:24px;cursor:pointer;
  box-shadow:0 6px 18px rgba(13,19,32,.06);transition:transform .2s,box-shadow .2s,border-color .2s,color .2s}
.dv-back:hover{border-color:var(--ink);color:var(--ink)}
.dv-back__ico{font-size:1.05em;line-height:1}
/* video block on detail pages */
.dv-videowrap{border-radius:var(--r-lg);overflow:hidden;background:#0c0f14;margin:0 0 40px}
.dv-videowrap video{display:block;width:100%;height:auto;max-height:72vh;background:#0c0f14}
.dv-kicker{font-family:var(--mono);font-weight:500;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 .8rem}
.dv-title{font-family:var(--display);font-weight:700;font-size:clamp(2rem,4.5vw,3.4rem);line-height:1.04;letter-spacing:-.025em;margin:0 0 1rem;max-width:20ch}
.dv-loc{font-size:1rem;color:var(--muted);font-weight:600}
.dv-body{font-size:1.06rem;line-height:1.7;color:#33404f;max-width:72ch;margin:28px 0}
.dv-body p{margin:0 0 1rem}
.dv-section-title{font-family:var(--display);font-weight:700;font-size:1.5rem;letter-spacing:-.02em;margin:8px 0 20px}
/* gallery */
.dv-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:8px 0 40px}
.dv-gallery a{display:block;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;background:#e7eaf0}
.dv-gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.dv-gallery a:hover img{transform:scale(1.05)}
.dv-gallery a.span2{grid-column:span 2;aspect-ratio:8/3}
@media(max-width:820px){.dv-gallery{grid-template-columns:1fr 1fr}.dv-gallery a.span2{grid-column:span 2;aspect-ratio:16/7}}
.dv-gallery a{cursor:zoom-in}

/* ░ Lightbox (gallery viewer with prev/next) ░ */
body.lb-open{overflow:hidden}
.lightbox{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:clamp(12px,4vw,48px);background:rgba(7,11,18,.92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.lightbox[hidden]{display:none}
.lightbox__stage{position:relative;margin:0;flex:1 1 auto;min-width:0;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}
.lightbox__stage img{max-width:100%;max-height:88vh;width:auto;height:auto;border-radius:var(--r-lg);box-shadow:0 40px 90px -30px rgba(0,0,0,.7)}
.lightbox__count{margin-top:14px;font-family:var(--mono);font-weight:500;font-size:.78rem;letter-spacing:.08em;color:#cdd8e6}
.lightbox__nav,.lightbox__close{display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;transition:background .2s,border-color .2s,transform .2s}
.lightbox__nav{flex:0 0 auto;width:54px;height:54px;border-radius:50%}
.lightbox__nav:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.5)}
.lightbox__nav:active{transform:scale(.94)}
.lightbox__nav[hidden]{display:none}
.lightbox__close{position:absolute;top:16px;right:16px;width:46px;height:46px;border-radius:50%;font-size:1.8rem;line-height:1;z-index:2}
.lightbox__close:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.5)}
.lightbox :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:680px){
  .lightbox{padding:10px;gap:4px}
  .lightbox__nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;background:rgba(7,11,18,.55)}
  .lightbox__nav--prev{left:8px}.lightbox__nav--next{right:8px}
  .lightbox__stage img{max-height:80vh}
}

/* project list inside category page */
.dv-projects{display:grid;grid-template-columns:1fr;gap:20px;margin:8px 0 40px}
.dv-proj{display:grid;grid-template-columns:320px 1fr;gap:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:box-shadow .25s,transform .2s}
.dv-proj:hover{border-color:var(--line-strong)}
.dv-proj .ph{position:relative;min-height:200px;background:#ddd}
.dv-proj .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.dv-proj .bd{padding:24px 26px}
.dv-proj .cat{font-family:var(--mono);font-weight:500;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.dv-proj h3{font-family:var(--display);font-weight:700;font-size:1.3rem;margin:8px 0 6px;letter-spacing:-.01em}
.dv-proj .loc{color:var(--muted);font-size:.9rem;margin:0 0 10px}
.dv-proj p{margin:0;color:#52606f;font-size:.94rem;line-height:1.55}
@media(max-width:680px){.dv-proj{grid-template-columns:1fr}.dv-proj .ph{min-height:200px}}
/* related services chips on category page */
.dv-chips{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 30px}
.dv-chip{font-family:var(--display);font-weight:600;font-size:.86rem;background:#eef2f8;border:1px solid var(--line);border-radius:var(--r);padding:8px 16px;color:var(--ink)}

/* ░ About / timeline ░ */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.timeline{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
.timeline li{position:relative;padding:0 0 26px 30px;border-left:2px solid rgba(127,182,255,.35)}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-7px;top:2px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(16,133,250,.2)}
.timeline .yr{font-family:var(--display);font-weight:700;color:#7fb6ff;font-size:1.1rem}
.timeline .tx{color:#aebbcd;font-size:.95rem;margin-top:3px}
@media(max-width:860px){.about{grid-template-columns:1fr;gap:32px}}

/* ░ Why ░ — connected technical grid (hairline-ruled, like services) on light bg */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--ink);border-radius:var(--r-lg);overflow:hidden;background:var(--ink)}
.why-card{background:var(--card);border-right:1px solid var(--line);padding:26px 24px;transition:background .28s ease,color .28s ease}
.why-card:last-child{border-right:0}
.why-card h4{font-family:var(--display);font-weight:700;margin:0 0 .5rem;color:var(--ink);transition:color .28s ease}
.why-card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.55;transition:color .28s ease}
.why-card:hover{background:var(--ink)}
.why-card:hover h4{color:#fff}
.why-card:hover p{color:#b4c0d4}
@media(max-width:980px){.why-grid{grid-template-columns:repeat(2,1fr)}
  .why-card{border-bottom:1px solid var(--line)}.why-card:nth-child(2n){border-right:0}}
@media(max-width:520px){.why-grid{grid-template-columns:1fr}.why-card{border-right:0}}

/* ░ Certifications ░ */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cert-card{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;transition:border-color .2s,background .2s}
.cert-card:hover{border-color:var(--line-strong);background:#fbfcfe}
.cert-card .nm{font-family:var(--display);font-weight:700;color:var(--brand);font-size:1.02rem}
.cert-card .sub{color:var(--muted);font-size:.82rem}
.cert-card .pdf{margin-top:6px;font-size:.74rem;font-weight:700;letter-spacing:.06em;color:var(--accent);text-transform:uppercase}
.cert-card.is-static{cursor:default}
.cert-card.is-static:hover{background:var(--card)}
.cert-card .pdf.muted{color:#7a8699}
@media(max-width:980px){.cert-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cert-grid{grid-template-columns:1fr}}

/* ░ Careers form (Lavora con noi) ░ */
.careers-form{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,3.5vw,44px);box-shadow:none;max-width:860px}
.cf-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 22px;margin:0 0 22px}
.cf-field{display:flex;flex-direction:column;gap:7px}
.cf-field>span{font-family:var(--display);font-weight:700;font-size:.82rem;letter-spacing:.02em;color:var(--ink)}
.cf-field input,.cf-field select,.cf-field textarea{font-family:var(--sans);font-size:1rem;padding:13px 15px;border-radius:var(--r);border:1px solid var(--line);background:#fbfbfd;color:var(--ink);width:100%;box-sizing:border-box;transition:border-color .2s,box-shadow .2s}
.cf-field input:focus,.cf-field select:focus,.cf-field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(16,133,250,.14)}
.cf-field textarea{resize:vertical;min-height:96px}
.cf-full{grid-column:1/-1}
.cf-file input[type=file]{padding:11px 14px;cursor:pointer;background:#fff}
.cf-file input[type=file]::file-selector-button{font-family:var(--display);font-weight:700;font-size:.82rem;border:1px solid var(--line);background:#eef2f8;color:var(--brand);border-radius:var(--r);padding:8px 14px;margin-right:12px;cursor:pointer}
.cf-hint{color:var(--muted);font-size:.78rem;margin-top:2px}
.cf-note{margin:16px 0 0;padding:13px 16px;border-radius:var(--r);font-size:.92rem;line-height:1.5}
.cf-note--info{background:#eef2f8;color:#33404f}
.cf-note--warn{background:#fff4d6;color:#7a5b00}
.cf-note--ok{background:#dcfce7;color:#14633b}
.cf-note--err{background:#fde2e1;color:#922}
@media(max-width:680px){.cf-grid{grid-template-columns:1fr}}

/* ░ Contact section (Contattaci) ░ */
.contact-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.contact-form{max-width:none}
.contact-form .contact-form__sub{color:var(--muted);font-size:.96rem;line-height:1.55;margin:0 0 22px}
.contact-aside{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,3vw,32px)}
.contact-info{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;font-size:.98rem;line-height:1.5;color:var(--ink)}
.contact-info b{font-family:var(--display);font-size:1.05rem;color:var(--brand)}
.contact-info a{color:var(--accent);text-decoration:none}
.contact-info a:hover{text-decoration:underline}
@media(max-width:860px){.contact-layout{grid-template-columns:1fr}}

/* ░ Footer (rich, from original) ░ */
.footer{background:#0b1f44;color:#aebbcd}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1.1fr 1.1fr;gap:40px;padding:64px 28px 44px}
.footer-logo{height:54px;width:auto;margin:0 0 18px;opacity:.95}
.footer-tag{margin:0;font-size:.92rem;line-height:1.6;color:#9fb0c4;max-width:34ch}
.footer-careers{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-family:var(--display);font-weight:700;font-size:.85rem;letter-spacing:.03em;color:#fff;border:1px solid rgba(255,255,255,.22);border-radius:var(--r);padding:9px 16px;transition:border-color .2s,background .2s}
.footer-careers:hover{border-color:var(--accent);background:rgba(16,133,250,.14)}
.footer-careers::after{content:"→"}
.footer-h{font-family:var(--display);font-weight:700;font-size:1.05rem;letter-spacing:.04em;text-transform:uppercase;color:#fff;margin:0 0 18px;position:relative;padding-bottom:12px}
.footer-h::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;border-radius:3px;background:var(--accent)}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#c2cdda;font-size:.95rem;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:.95rem;color:#c2cdda}
.footer-contact a{color:#c2cdda;transition:color .2s}.footer-contact a:hover{color:#fff}
.footer-contact .fi{color:var(--accent);width:18px;text-align:center}
.footer-map{display:block;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:18px;transition:border-color .2s,background .2s}
.footer-map:hover{border-color:var(--accent);background:rgba(255,255,255,.08)}
.footer-map__pin{font-size:1.4rem}
.footer-map__txt{display:block;margin:8px 0 12px;color:#dbe4ef;font-size:.95rem;line-height:1.5}
.footer-map__open{font-family:var(--display);font-weight:700;font-size:.8rem;letter-spacing:.04em;color:var(--accent)}
.footer-bar{border-top:1px solid rgba(255,255,255,.1);padding:22px 28px;margin-top:0}
.footer-bar p{margin:0;font-size:.84rem;color:#8295ad}
@media(max-width:900px){.footer-main{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:560px){.footer-main{grid-template-columns:1fr}}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero-stage{height:auto}
  .hero-pin{position:relative;height:auto;padding:120px 0 60px}
  .hero-frame{margin-left:0!important;margin-right:0!important}
  .hero-copy{opacity:1!important;transform:none!important}
  .hero-metric{position:static;opacity:1!important;width:auto;background:var(--ink);border-radius:0 0 18px 18px;padding:24px}
  .hero-scrollhint{display:none}
}