/* Turbo Tennis – colori e stile in linea con il Racquet Club Milano */
:root{
  --green:#18432d;
  --green-deep:#0f2a1b;
  --gold:#bc9026;
  --gold-bright:#d0a334;
  --gold-text:#8a6411;
  --cream:#ded8b3;
  --paper:#f7f4e6;
  --ink:#16251c;
  --muted:#4f5f55;
  --line:#e4dfc6;
  --display:"Bricolage Grotesque","Trebuchet MS",system-ui,sans-serif;
  --body:"Figtree",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--body);font-size:1.0625rem;line-height:1.6;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--display);line-height:1.05;letter-spacing:-.02em;margin:0}
p{margin:0}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:4px}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--green);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:calc(var(--safe-top) + .5rem)}

/* ---------- Bottoni ---------- */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:.55rem;font:700 1rem/1 var(--body);text-decoration:none;padding:1rem 1.5rem;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .15s ease,background-color .15s ease,color .15s ease,border-color .15s ease}
.btn svg{width:1.15em;height:1.15em;flex:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-deep)}
.btn-ghost{border-color:var(--green);color:var(--green);background:transparent}
.btn-ghost:hover{background:var(--green);color:#fff}
.on-dark .btn-primary{background:var(--gold);color:var(--green-deep)}
.on-dark .btn-primary:hover{background:var(--gold-bright)}
.on-dark .btn-ghost{border-color:var(--cream);color:var(--cream)}
.on-dark .btn-ghost:hover{background:var(--cream);color:var(--green-deep)}
.btn-sm{padding:.7rem 1.1rem;font-size:.95rem}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding-top:var(--safe-top)}
.nav{display:flex;align-items:center;gap:1.5rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.8rem;text-decoration:none}
.brand img{width:44px;height:44px;border-radius:10px}
.brand b{display:inline-block;font:800 1.35rem/1 var(--display);letter-spacing:-.02em;color:var(--green);transform:skewX(-7deg);white-space:nowrap}
.brand small{display:block;margin-top:.2rem;font-size:.78rem;color:var(--muted);line-height:1.2;white-space:nowrap}
.nav ul{display:flex;gap:1.5rem;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{text-decoration:none;font-weight:500;color:var(--muted);white-space:nowrap}
.nav ul a:hover,.nav ul a[aria-current]{color:var(--green)}
@media (max-width:960px){.nav ul{display:none}.nav .btn{margin-left:auto}}
@media (max-width:720px){.brand small{display:none}.nav .btn{display:none}}

/* ---------- Slot immagine ----------
   Metti il file nella cartella img/ con il nome indicato nel src.
   Finché il file manca si vede il riquadro verde con la scritta. */
.slot{position:relative;display:grid;place-items:center;text-align:center;overflow:hidden;background:
  radial-gradient(circle at 20% 85%,rgba(188,144,38,.4),transparent 50%),
  radial-gradient(circle at 85% 15%,rgba(222,216,179,.2),transparent 45%),
  var(--green)}
.slot .ph{position:relative;color:var(--cream);padding:1rem;font-size:.95rem}
.slot .ph svg{width:46px;height:46px;margin:0 auto .6rem;stroke:var(--gold);fill:none;stroke-width:1.6}
.slot .ph small{display:block;opacity:.8;margin-top:.15rem}
.slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ---------- Hero ---------- */
.hero{padding:clamp(2rem,5vw,4rem) 0 clamp(2.5rem,5vw,4.5rem);background:linear-gradient(180deg,#fff 0%,#fff 65%,var(--paper) 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center}
.hero h1{font-size:clamp(2.4rem,5vw,4.2rem);font-weight:800;color:var(--green);text-wrap:balance}
.hero h1 span{display:block;color:var(--gold)}
.hero .lead{margin-top:1.4rem;font-size:1.2rem;max-width:34rem}
.cta-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.hero .note{margin-top:1.2rem;font-size:.95rem;color:var(--muted)}
.hero-img{aspect-ratio:4/5;border-radius:32px 32px 32px 120px;border:2px solid var(--green);box-shadow:12px 12px 0 var(--cream)}
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .hero-img{aspect-ratio:4/3;border-radius:28px 28px 28px 80px;box-shadow:7px 7px 0 var(--cream);order:-1}
}

/* ---------- Sezioni ---------- */
section{padding:clamp(3.5rem,7vw,6rem) 0}
.sec-head{max-width:42rem;margin-bottom:2.5rem}
.sec-head h2{font-size:clamp(2rem,4.4vw,3.2rem);font-weight:800;color:var(--green);text-wrap:balance}
.sec-head p{margin-top:1rem;color:var(--muted);font-size:1.125rem}
.on-dark{background:var(--green);color:var(--cream)}
.on-dark .sec-head h2{color:#fff}
.on-dark .sec-head p{color:var(--cream)}
.tint{background:var(--paper)}

/* Tre parole */
.three{padding:0;background:var(--paper)}
.three ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr)}
.three li{padding:2rem clamp(1rem,3vw,2.2rem) 2.4rem;border-top:3px solid var(--gold)}
.three li+li{border-left:1px solid var(--line)}
.three h2{font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:800;color:var(--green)}
.three p{margin-top:.6rem;color:var(--muted);max-width:22rem}
@media (max-width:760px){.three ul{grid-template-columns:1fr}.three li+li{border-left:0}}

/* Cos'è */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.about p+p{margin-top:1rem}
.about .big{font-size:1.35rem;font-family:var(--display);font-weight:600;line-height:1.35;color:var(--green)}
.specs{margin:0;border-top:3px solid var(--gold)}
.specs div{display:grid;grid-template-columns:8rem 1fr;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.specs dt{font:800 1.05rem/1.3 var(--display);color:var(--green)}
.specs dd{margin:0}
@media (max-width:860px){.about{grid-template-columns:1fr}.specs div{grid-template-columns:7rem 1fr}}

/* Fascia slogan */
.slogans{padding:clamp(2.2rem,5vw,3.4rem) 0}
.slogans ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem clamp(1.5rem,3vw,2.5rem)}
.slogans li{display:flex;align-items:center;gap:1rem}
.slogans .ico{flex:none;width:3.6rem;height:3.6rem;stroke:var(--gold-bright);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.slogans p{font:800 clamp(1.5rem,2.5vw,2rem)/1.1 var(--display);letter-spacing:-.02em;color:#fff}
.slogans p span{display:block;margin-top:.15rem;color:var(--cream);font-weight:600}
@media (max-width:860px){.slogans ul{grid-template-columns:1fr}}

/* Ritrovi / cambia */
.twice{display:grid;grid-template-columns:1fr 1fr;border-radius:28px;overflow:hidden;border:2px solid var(--green)}
.twice > div{padding:clamp(1.6rem,3.5vw,2.6rem)}
.twice h3{font-size:1.7rem;font-weight:800}
.twice ul{list-style:none;margin:1.3rem 0 0;padding:0}
.twice li{padding:.9rem 0;border-top:1px solid rgba(0,0,0,.12)}
.twice li b{display:block;font:800 1.1rem/1.3 var(--display)}
.twice li span{display:block;margin-top:.15rem}
.t-old{background:#fff;color:var(--ink)}
.t-old h3{color:var(--green)}
.t-old li span{color:var(--muted)}
.t-new{background:var(--green);color:var(--cream)}
.t-new h3{color:#fff}
.t-new li{border-top-color:rgba(222,216,179,.3)}
.t-new li b{color:#fff}
@media (max-width:760px){.twice{grid-template-columns:1fr}}

/* Regole in un minuto */
.rl{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:2.2rem clamp(2rem,5vw,4rem)}
.rl li{border-left:4px solid var(--gold);padding:.1rem 0 .1rem 1.3rem}
.rl h3{font-size:1.45rem;font-weight:800;color:var(--green)}
.rl p{margin-top:.5rem;color:var(--muted)}
.rl .rl-cta{border-left-color:transparent;display:flex;align-items:center}
@media (max-width:760px){.rl{grid-template-columns:1fr}.rl .rl-cta{padding-left:0}}

/* Il Turbo */
.turbo-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.court{margin:0}
.court svg{width:100%;height:auto}
.court figcaption{margin-top:1rem;color:var(--cream);font-size:.98rem;max-width:44rem}
.court .free{opacity:0;transition:opacity .25s ease}
.court[data-turbo="noi"] .free-l,.court[data-turbo="loro"] .free-r{opacity:.65}
.court .lbl-free{opacity:0;transition:opacity .25s ease}
.court .lbl-ban{transition:opacity .25s ease}
.court[data-turbo="noi"] .lbl-ban-l,.court[data-turbo="loro"] .lbl-ban-r{opacity:0}
.court[data-turbo="noi"] .lbl-free-l,.court[data-turbo="loro"] .lbl-free-r{opacity:1}
.court[data-turbo="noi"] .znv-l,.court[data-turbo="loro"] .znv-r{fill:var(--green-deep)}
.court text{font-family:var(--display);font-weight:800;fill:var(--cream)}
.court .lbl-free{fill:var(--green-deep)}
.sim{background:var(--green-deep);border:2px solid var(--gold);border-radius:28px;padding:1.6rem}
.sim h3{font-size:1.55rem;font-weight:800;color:#fff}
.sim .hint{margin-top:.5rem;color:var(--cream);font-size:.98rem}
.score{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin:1.2rem 0 .9rem}
.score div{background:rgba(222,216,179,.09);border-radius:18px;padding:.8rem 1rem;text-align:center}
.score span{display:block;font-size:.95rem;color:var(--cream)}
.score b{display:block;font:800 3.2rem/1.05 var(--display);color:#fff}
.sim-btns{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.sim-btns .btn{padding:.9rem .6rem;font-size:.95rem}
.btn-turbo{width:100%;margin-top:.8rem;padding:1.15rem 1rem;font:800 1.45rem/1 var(--display);background:var(--gold);color:var(--green-deep);border-color:var(--gold);transform:skewX(-6deg)}
.btn-turbo:hover:not(:disabled){background:var(--gold-bright)}
.btn-turbo:active:not(:disabled){transform:skewX(-6deg) translateY(1px)}
.btn-turbo:disabled{background:transparent;border-color:rgba(222,216,179,.4);color:rgba(222,216,179,.65);cursor:not-allowed}
.btn-turbo.is-on:disabled{background:var(--gold);border-color:var(--gold);color:var(--green-deep);cursor:default;animation:pulse 1.4s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(208,163,52,.28)}}
.sim-msg{min-height:3.6em;margin-top:1rem;color:#fff;font-weight:500}
.linklike{background:none;border:0;padding:.3rem 0;margin-top:.4rem;font:600 .95rem var(--body);color:var(--cream);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
@media (max-width:900px){.turbo-grid{grid-template-columns:1fr}}
@media (max-width:600px){.court .lbl-ban,.court .lbl-free{display:none}}

/* Attrezzatura */
.gear{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}
.gear figure{margin:0}
.gear .slot{aspect-ratio:4/3;border-radius:24px;border:2px solid var(--green)}
.gear .slot img{object-fit:contain;padding:6%;background:#fff}
.gear figcaption{padding:1.1rem .2rem 0}
.gear figcaption b{display:block;font:800 1.4rem/1.2 var(--display);color:var(--green)}
.gear figcaption span{display:block;margin-top:.3rem;color:var(--muted)}
.gear-note{margin-top:2rem;padding:1.2rem 1.5rem;border-left:4px solid var(--gold);background:var(--paper);border-radius:0 16px 16px 0;max-width:40rem}
@media (max-width:760px){.gear{grid-template-columns:1fr}}

/* Video (sezione nascosta finché non ci sono i video) */
.video{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.video .screen{aspect-ratio:16/9;border-radius:24px;background:var(--green-deep);border:2px solid var(--gold);display:grid;place-items:center;position:relative;overflow:hidden}
.video .screen iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media (max-width:860px){.video{grid-template-columns:1fr}}

/* CTA */
.cta{text-align:center}
.cta h2{font-size:clamp(2.3rem,5.6vw,4.4rem);font-weight:800;color:#fff;max-width:18ch;margin-inline:auto;text-wrap:balance}
.cta p{margin:1.3rem auto 0;max-width:36rem;font-size:1.15rem}
.cta .cta-row{justify-content:center}
.cta .tel{margin-top:1.4rem;font-size:1rem;color:var(--cream)}
.cta .tel a{color:#fff;font-weight:700}

/* FAQ */
.faq{max-width:46rem}
details{border-bottom:1px solid var(--line)}
details:first-of-type{border-top:2px solid var(--gold)}
summary{cursor:pointer;list-style:none;padding:1.2rem 2.5rem 1.2rem 0;font:800 1.2rem/1.3 var(--display);color:var(--green);position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:.2rem;top:50%;translate:0 -50%;font:600 1.8rem/1 var(--body);color:var(--gold-text);transition:rotate .2s ease}
details[open] summary::after{rotate:45deg}
details p{padding:0 0 1.3rem;color:var(--muted);max-width:40rem}

/* Footer */
footer{background:var(--green-deep);color:var(--cream);padding:3rem 0 calc(3rem + var(--safe-bottom));font-size:.95rem}
.foot{display:grid;grid-template-columns:auto 1fr;gap:1.5rem 2.5rem;align-items:start}
.foot img{width:84px;height:84px;border-radius:16px}
.foot a{color:#fff}
.foot .flinks{display:flex;flex-wrap:wrap;gap:.4rem 1.5rem;margin-top:.8rem}

/* Barra mobile */
.sticky{display:none}
@media (max-width:720px){
  body{padding-bottom:calc(76px + var(--safe-bottom))}
  .sticky{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:.7rem 1rem calc(.7rem + var(--safe-bottom));background:rgba(255,255,255,.96);border-top:1px solid var(--line);backdrop-filter:blur(8px)}
  .sticky .btn{padding:.9rem .4rem;font-size:.95rem}
  .foot{grid-template-columns:1fr}
}

/* ---------- Pagina regolamento ---------- */
.doc-hero{padding:clamp(2.5rem,6vw,4.5rem) 0 2.2rem;background:linear-gradient(180deg,#fff,var(--paper))}
.doc-hero h1{font-size:clamp(2.4rem,6vw,4rem);font-weight:800;color:var(--green)}
.doc-hero p{margin-top:1rem;max-width:38rem;color:var(--muted);font-size:1.15rem}
.toc{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.8rem;padding:0;list-style:none}
.toc a{display:inline-block;padding:.5rem 1rem;border:2px solid var(--green);border-radius:999px;text-decoration:none;font-weight:700;font-size:.95rem;color:var(--green);background:#fff}
.toc a:hover{background:var(--green);color:#fff}
.rulebook{counter-reset:art;padding:1rem 0 clamp(3rem,6vw,5rem)}
.art{counter-increment:art;display:grid;grid-template-columns:15rem 1fr;gap:1rem 3rem;padding:2.4rem 0;border-top:2px solid var(--gold)}
.art:first-child{border-top:0}
.art h2{font-size:1.75rem;font-weight:800;color:var(--green)}
.art h2::before{content:counter(art) ". ";color:var(--gold-text)}
.art-body > * + *{margin-top:1rem}
.art-body h3{font-size:1.15rem;font-weight:800;color:var(--green);margin-top:1.6rem}
.art-body ul{margin:0;padding-left:1.25rem}
.art-body li+li{margin-top:.55rem}
.art-body li::marker{color:var(--gold)}
.art-body strong{color:var(--green)}
.example{padding:1rem 1.3rem;border-left:4px solid var(--gold);background:var(--paper);border-radius:0 16px 16px 0}
.example b{color:var(--green)}
.turbo-card{padding:1.3rem 1.5rem;border-radius:22px;background:var(--green);color:var(--cream)}
.turbo-card strong{color:#fff}
.turbo-card li::marker{color:var(--gold-bright)}
@media (max-width:800px){.art{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .btn,summary::after,.court .free,.court .lbl-free,.court .lbl-ban{transition:none}
  .btn-turbo.is-on:disabled{animation:none}
}
@media print{
  .site-header,.sticky,footer,.toc,.cta-row{display:none!important}
  body{font-size:11pt;padding-bottom:0}
  .doc-hero{background:none;padding:0 0 1rem}
  .art{grid-template-columns:1fr;break-inside:avoid;padding:1.2rem 0}
  .turbo-card{background:none;color:var(--ink);border:1px solid var(--ink)}
  .turbo-card strong{color:var(--ink)}
}