/* Tunnel Studios — design tokens */
:root {
  --blue: #2550af;          /* blu del logo */
  --blue-deep: #1a3d8f;
  --blue-bright: #3a6cd9;
  --navy: #0b1433;          /* colore più scuro del brand: header e stage */
  --ink: #12151d;
  --ink-soft: #3b4150;
  --grey-100: #f2f3f5;      /* pavimento in resina dello studio */
  --grey-200: #e3e6eb;
  --grey-400: #9aa1ae;
  --white: #ffffff;
  --red: #d8342a;           /* accento dal vaso e dalla sedia rossa */

  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --header-h: 72px;
  --wrap: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --radius: 14px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--grey-100);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; margin: 0; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--blue-bright); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 200;
  background: var(--white); color: var(--ink); padding: 10px 16px; border-radius: 8px;
  transform: translateY(-160%); transition: transform .2s var(--ease); font-weight: 600; text-decoration: none;
}
.skip-link:focus { transform: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: 46px; padding: 0 22px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: 16px; letter-spacing: .005em;
  text-decoration: none; border: 1.5px solid currentColor; transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--blue); border-color: var(--blue); color: var(--white); }
.btn--primary:hover { background: var(--blue-bright); border-color: var(--blue-bright); }
.btn--ghost { color: var(--white); border-color: rgba(255,255,255,.55); background: rgba(11,20,51,.15); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.btn--ghost:hover { border-color: var(--white); background: rgba(255,255,255,.12); }
.btn--lg { min-height: 56px; padding: 0 30px; font-size: 18px; }
.btn--block { width: 100%; }
.link-arrow { font-family: var(--font-display); font-weight: 600; color: var(--blue); text-decoration: none; display: inline-flex; gap: .4em; align-items: center; }
.link-arrow::after { content: '→'; transition: transform .2s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- Header (glass → solid) ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding-top: env(safe-area-inset-top);
  color: var(--white);
  transition: background-color .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header::before {
  content: ''; position: absolute; inset: 0 0 -28px 0; z-index: -1; pointer-events: none;
  background: linear-gradient(to bottom, rgba(11,20,51,.7), rgba(11,20,51,0));
  transition: opacity .3s ease;
}
.site-header[data-state="solid"], body.menu-open .site-header {
  background: rgba(11,20,51,.93);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom-color: rgba(255,255,255,.1);
}
.site-header[data-state="solid"]::before, body.menu-open .site-header::before { opacity: 0; }
.header-inner {
  height: var(--header-h); max-width: 1440px; margin: 0 auto;
  padding: 0 max(var(--gutter), env(safe-area-inset-left)) 0 max(var(--gutter), env(safe-area-inset-right));
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; min-height: 44px; flex-shrink: 0; }
.brand-logo { height: 38px; width: auto; filter: drop-shadow(0 1px 6px rgba(0,0,0,.25)); }
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: 6px; }
.main-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px;
  font-family: var(--font-display); font-weight: 500; font-size: 15.5px; text-decoration: none;
  text-shadow: 0 1px 8px rgba(0,0,0,.35); border-radius: 8px; transition: background .2s;
}
.main-nav a:hover { background: rgba(255,255,255,.1); }
.header-cta { min-height: 42px; font-size: 15px; }
.menu-toggle { display: none; }

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed; inset: 0; z-index: 90; background: rgba(11,20,51,.97);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  color: var(--white); padding: calc(var(--header-h) + env(safe-area-inset-top) + 12px) var(--gutter) calc(32px + env(safe-area-inset-bottom));
  overflow-y: auto;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu__inner { display: flex; flex-direction: column; gap: 28px; max-width: 520px; margin: 0 auto; }
.mobile-menu__close { align-self: flex-end; min-height: 44px; min-width: 44px; background: none; border: 0; color: var(--grey-200); font: 600 15px var(--font-display); cursor: pointer; }
.mobile-menu__list a { display: flex; align-items: center; min-height: 56px; font: 700 32px/1 var(--font-display); text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.1); }
body.menu-open { overflow: hidden; }

/* ---------- Flight ---------- */
.flight { position: relative; background: var(--navy); height: 1100vh; }
.stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; background: var(--navy); }
.stage-poster, .stage-canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stage-canvas { opacity: 0; transition: opacity .4s ease; }
.stage-canvas[data-ready="true"] { opacity: 1; }
.stage-shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% 50%, transparent 55%, rgba(11,20,51,.35) 100%),
    linear-gradient(to top, rgba(11,20,51,.55), transparent 38%);
}
.chapters { position: absolute; inset: 0; pointer-events: none; }
.chapter {
  position: absolute; bottom: clamp(56px, 11vh, 120px); max-width: min(560px, 44vw);
  color: var(--white); opacity: 0; will-change: opacity, transform;
  text-shadow: 0 2px 22px rgba(0,0,0,.45);
}
.chapter::before {
  content: ''; position: absolute; inset: -22% -18% -30% -18%; z-index: -1; pointer-events: none;
  background: radial-gradient(closest-side, rgba(11,20,51,.55), rgba(11,20,51,.25) 60%, transparent);
  filter: blur(8px);
}
.chapter[data-visible="true"] { pointer-events: auto; }
.chapter[data-align="left"] { left: var(--gutter); }
.chapter[data-align="right"] { right: var(--gutter); text-align: left; }
.chapter[data-align="center"] { left: 50%; translate: -50% 0; text-align: center; max-width: min(760px, 86vw); }
.chapter[data-align="center"] .chapter__actions { justify-content: center; }
.chapter__panel { padding: 0; }
.chapter__kicker { font: 600 13px/1.3 var(--font-display); letter-spacing: .14em; text-transform: uppercase; opacity: .9; margin-bottom: 14px; }
.chapter__title { font-size: clamp(40px, 5.4vw, 84px); font-weight: 800; margin-bottom: 18px; }
.chapter[data-id="arrivo"] .chapter__title { font-size: clamp(52px, 7.6vw, 120px); }
.chapter__body { font-size: clamp(17px, 1.35vw, 20px); line-height: 1.5; max-width: 34em; opacity: .95; }
.chapter[data-align="center"] .chapter__body { margin: 0 auto; }
.chapter__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; text-shadow: none; }

.flight-progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255,255,255,.12); }
.flight-progress span { display: block; height: 100%; width: 100%; background: var(--blue-bright); transform-origin: left; transform: scaleX(0); }
.scroll-cue {
  position: absolute; right: var(--gutter); bottom: 34px; color: var(--white); text-decoration: none;
  font: 600 13px var(--font-display); letter-spacing: .12em; text-transform: uppercase; display: flex; align-items: center; gap: 10px;
  min-height: 44px; transition: opacity .4s;
}
.scroll-cue::after { content: ''; width: 1.5px; height: 34px; background: currentColor; animation: cue 1.8s var(--ease) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
.flight[data-started="true"] .scroll-cue { opacity: 0; pointer-events: none; }

/* Fallback statico */
.flight-static { background: var(--navy); }
.static-chapter { position: relative; min-height: 88vh; display: flex; align-items: flex-end; color: var(--white); padding: calc(var(--header-h) + 40px) var(--gutter) 64px; }
.static-chapter img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.static-chapter::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11,20,51,.75), transparent 60%); }
.static-chapter .chapter__panel { position: relative; z-index: 1; max-width: 640px; }

/* ---------- Sections ---------- */
.section { padding: clamp(80px, 12vw, 160px) 0; }
.section--light { background: var(--grey-100); }
.section--white { background: var(--white); }
.section--blue { background: var(--blue); color: var(--white); }
.section--dark { background: var(--navy); color: var(--white); }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }
.kicker { font: 600 13px/1.3 var(--font-display); letter-spacing: .14em; text-transform: uppercase; color: var(--blue); margin-bottom: 18px; }
.kicker--light { color: rgba(255,255,255,.75); }
.h-xxl { font-size: clamp(48px, 8vw, 128px); font-weight: 800; }
.h-xl { font-size: clamp(38px, 5.2vw, 76px); font-weight: 800; }
.h-lg { font-size: clamp(32px, 4vw, 56px); }
.h-sm { font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.lead { font-size: clamp(19px, 1.6vw, 23px); line-height: 1.5; color: var(--ink-soft); margin-top: 22px; }
.lead--light { color: rgba(255,255,255,.85); }
.prose p + p { margin-top: 18px; }
.prose .lead { margin-top: 0; color: var(--ink); }
.prose p:not(.lead) { color: var(--ink-soft); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 120px); align-items: start; }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 44px 0 0; padding-top: 32px; border-top: 1px solid var(--grey-200); }
.facts dt { font: 800 clamp(30px, 3vw, 44px)/1 var(--font-display); color: var(--blue); letter-spacing: -0.02em; }
.facts dd { margin: 8px 0 0; color: var(--ink-soft); font-size: 15px; }

/* Servizi */
.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2px; background: var(--grey-200); border-radius: var(--radius); overflow: hidden; counter-reset: s; }
.service { background: var(--white); padding: 36px 30px 40px; counter-increment: s; transition: background .25s; }
.service:hover { background: var(--grey-100); }
.service::before { content: counter(s, decimal-leading-zero); display: block; font: 600 14px var(--font-display); color: var(--blue); margin-bottom: 56px; }
.service h3 { font-size: 25px; font-weight: 700; margin-bottom: 14px; }
.service p { color: var(--ink-soft); font-size: 16px; }
.crafts { margin-top: 56px; display: flex; gap: 24px; align-items: baseline; flex-wrap: wrap; }
.crafts__label { font: 600 15px var(--font-display); color: var(--ink-soft); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { padding: 9px 16px; border: 1.5px solid var(--grey-200); border-radius: 999px; font-size: 15px; font-weight: 500; }

/* Valori */
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; border-top: 1px solid rgba(255,255,255,.25); padding-top: 40px; }
.values h3 { font-size: 24px; margin-bottom: 12px; }
.values p { color: rgba(255,255,255,.82); font-size: 16px; }

/* Premi */
.awards-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 56px; flex-wrap: wrap; }
.awards-count { display: flex; align-items: baseline; gap: 14px; }
.awards-count strong { font: 800 clamp(80px, 11vw, 168px)/.85 var(--font-display); color: var(--blue); letter-spacing: -0.04em; }
.awards-count span { max-width: 9em; color: var(--ink-soft); font-size: 17px; line-height: 1.35; }
.awards-highlights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.awards-highlights li { background: var(--navy); color: var(--white); border-radius: var(--radius); padding: 32px 30px; position: relative; overflow: hidden; }
.awards-highlights li::after { content: '★'; position: absolute; right: 22px; top: 18px; font-size: 26px; color: var(--blue-bright); }
.awards-highlights .year { font: 800 54px/1 var(--font-display); letter-spacing: -0.03em; }
.awards-highlights .title { font: 700 22px var(--font-display); margin-top: 18px; }
.awards-highlights .source { color: rgba(255,255,255,.7); font-size: 15px; margin-top: 4px; }
.awards-list-wrap { margin-top: 64px; }
.awards-list { margin: 20px 0 28px; border-top: 1px solid var(--grey-200); }
.awards-list li { display: grid; grid-template-columns: 70px 1.3fr 1fr 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--grey-200); align-items: baseline; font-size: 16px; }
.awards-list .y { font: 600 15px var(--font-display); color: var(--blue); }
.awards-list .p { font-weight: 600; }
.awards-list .r { color: var(--ink-soft); }

/* Brand */
.brands { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); border-top: 1px solid var(--grey-200); border-left: 1px solid var(--grey-200); }
.brands li { display: flex; align-items: center; justify-content: center; min-height: 108px; padding: 20px; text-align: center; border-right: 1px solid var(--grey-200); border-bottom: 1px solid var(--grey-200); font: 600 19px var(--font-display); color: var(--ink-soft); letter-spacing: -0.01em; transition: color .2s, background .2s; }
.brands li:hover { color: var(--blue); background: var(--grey-100); }

/* Galleria */
.gallery { display: grid; grid-template-columns: repeat(6, 1fr); grid-auto-rows: clamp(160px, 18vw, 260px); gap: 14px; }
.gallery figure { margin: 0; position: relative; overflow: hidden; border-radius: var(--radius); background: #1b2443; }
.gallery figure:nth-child(1) { grid-column: span 4; grid-row: span 2; }
.gallery figure:nth-child(2) { grid-column: span 2; grid-row: span 2; }
.gallery figure:nth-child(n+3) { grid-column: span 2; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.gallery figure:hover img { transform: scale(1.04); }
.gallery figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 18px 14px; font: 600 15px var(--font-display); background: linear-gradient(to top, rgba(11,20,51,.75), transparent); }

/* Contatti */
.contact-hero { max-width: 960px; }
.contact-hero .btn { margin-top: 40px; }
.note { font-size: 14px; color: var(--ink-soft); margin-top: 12px; }
.offices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 88px; padding-top: 40px; border-top: 1px solid var(--grey-200); }
.office h3 { font: 600 13px var(--font-display); letter-spacing: .14em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.office p { font-size: 18px; line-height: 1.5; }
.office a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }
.office .link-arrow { font-size: 15px; }

/* Footer */
.site-footer { background: var(--navy); color: var(--white); padding: 72px 0 calc(48px + env(safe-area-inset-bottom)); }
.footer-inner { display: grid; grid-template-columns: auto 1fr; gap: 24px 48px; align-items: center; }
.footer-inner img { height: 46px; width: auto; }
.footer-payoff { font: 500 18px var(--font-display); color: rgba(255,255,255,.75); justify-self: end; }
.footer-nav { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px 22px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-nav a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; color: rgba(255,255,255,.85); font-weight: 500; }
.footer-legal { grid-column: 1 / -1; font-size: 14px; color: rgba(255,255,255,.55); }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .main-nav { display: none; }
  .header-cta { margin-left: auto; }
  .values { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .awards-highlights { grid-template-columns: 1fr; }
  .awards-list li { grid-template-columns: 60px 1fr; gap: 4px 16px; }
  .awards-list li .a, .awards-list li .r { grid-column: 2; }
  .offices { grid-template-columns: 1fr; gap: 36px; }
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .gallery figure:nth-child(n) { grid-column: span 1; grid-row: span 1; }
  .gallery figure:nth-child(1) { grid-column: span 2; grid-row: span 2; }
}
@media (max-width: 767px) {
  :root { --header-h: 60px; }
  .header-cta { display: none; }
  .brand-logo { height: 30px; }
  .menu-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
    margin-left: auto; width: 44px; height: 44px; background: none; border: 0; padding: 0; cursor: pointer; color: var(--white);
  }
  .menu-toggle span { display: block; width: 24px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .25s var(--ease); }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

  .stage-shade { background: linear-gradient(to top, rgba(11,20,51,.82) 0%, rgba(11,20,51,.35) 38%, transparent 60%); }
  .chapter, .chapter[data-align] {
    left: var(--gutter); right: var(--gutter); translate: none; max-width: none; text-align: left;
    bottom: calc(40px + env(safe-area-inset-bottom));
  }
  .chapter[data-align="center"] .chapter__actions { justify-content: flex-start; }
  .chapter__kicker { font-size: 11.5px; margin-bottom: 10px; }
  .chapter__title, .chapter[data-id="arrivo"] .chapter__title { font-size: clamp(36px, 10.5vw, 52px); margin-bottom: 0; }
  .chapter__body { display: none; }
  .chapter[data-id="studio"] .chapter__body { display: block; font-size: 16px; margin-top: 12px; }
  .chapter__actions { margin-top: 18px; }
  .chapter__actions .btn { min-height: 48px; }
  .chapter[data-id="arrivo"] .chapter__actions .btn:not(.btn--primary) { display: none; }
  .scroll-cue { right: auto; left: var(--gutter); bottom: auto; top: calc(var(--header-h) + env(safe-area-inset-top) + 8px); font-size: 11px; }
  .scroll-cue::after { height: 20px; }

  .section { padding: 72px 0; }
  .facts { grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
  .facts dd { font-size: 13.5px; }
  .crafts { flex-direction: column; gap: 14px; }
  .values { grid-template-columns: 1fr; gap: 28px; }
  .awards-count strong { font-size: 88px; }
  .brands { grid-template-columns: repeat(2, 1fr); }
  .brands li { min-height: 84px; font-size: 16px; }
  .gallery { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .gallery figure:nth-child(n) { grid-column: span 1; grid-row: span 1; }
  .contact-hero .btn { width: 100%; white-space: normal; text-align: center; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-payoff { justify-self: start; }
  .footer-nav { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation: none !important; }
}