/* ============================================================
   XRebound — Pre-launch landing
   Brand: optic tennis-lime on ink black. Sporty / competitive.
   ============================================================ */

:root{
  --ink:#0C0F0A;
  --ink-2:#11160E;
  --court:#16241A;
  --court-2:#1E3322;
  --paper:#F4F6EF;
  --paper-2:#E7ECDD;
  --lime:#d6eb00;
  --lime-deep:#A8C400;
  --lime-ink:#9AA900;
  --line:rgba(244,246,239,.12);
  --line-strong:rgba(244,246,239,.22);
  --muted:rgba(244,246,239,.62);
  --muted-2:rgba(244,246,239,.42);
  --pos:#d6eb00;
  --neg:#FF8A5B;

  --ff-display:"Archivo",system-ui,sans-serif;
  --ff-body:"Hanken Grotesk",system-ui,sans-serif;
  --ff-mono:"Space Mono",ui-monospace,monospace;

  --maxw:1120px;
  --gut:clamp(20px,5vw,40px);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--ff-body);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}

/* ---- Type ------------------------------------------------- */
.display{
  font-family:var(--ff-display);
  font-weight:800;
  font-stretch:120%;
  line-height:.92;
  letter-spacing:-.015em;
  text-wrap:balance;
  margin:0;
}
.eyebrow{
  font-family:var(--ff-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--lime);
  margin:0;
  display:inline-flex;
  align-items:center;
  gap:.7em;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(214,235,0,.18);
}
.lede{font-size:clamp(17px,2.2vw,20px);color:var(--muted);text-wrap:pretty;margin:0}
.lede b{color:var(--paper);font-weight:700}

.lime-text{color:var(--lime)}
.mono-lime{color:var(--lime);font-family:var(--ff-mono)}

/* ---- Buttons ---------------------------------------------- */
.btn{
  --bg:var(--lime);--fg:var(--ink);
  appearance:none;border:0;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  height:54px;padding:0 26px;border-radius:999px;
  background:var(--bg);color:var(--fg);
  font-family:var(--ff-display);font-weight:700;font-stretch:105%;
  font-size:16px;letter-spacing:.005em;white-space:nowrap;
  transition:transform .14s cubic-bezier(.3,.8,.4,1),box-shadow .2s,background .2s;
  box-shadow:0 10px 30px -12px rgba(214,235,0,.5);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn.ghost{
  --bg:transparent;--fg:var(--paper);
  border:1.5px solid var(--line-strong);box-shadow:none;
}
.btn.ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn.sm{height:42px;padding:0 18px;font-size:14px}

/* ---- Header ----------------------------------------------- */
.site-head{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(14px);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  background:linear-gradient(to bottom,rgba(12,15,10,.86),rgba(12,15,10,.5));
  border-bottom:1px solid var(--line);
}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px}
.logo{display:inline-flex;line-height:0}
.logo svg{height:100%;width:auto;display:block}
.logo .cls-1{fill:var(--paper)}     /* X-mark + wordmark */
.logo .cls-2{fill:var(--lime)}      /* tennis-ball mark */
.brand-logo{height:34px}
.brand-logo svg{height:34px}
.foot-logo{height:24px}
.foot-logo svg{height:24px}
.head-cta{display:flex;align-items:center;gap:14px}
.head-tag{font-family:var(--ff-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted-2);display:none}

/* ---- Hero ------------------------------------------------- */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero-inner{
  position:relative;z-index:2;
  padding-top:clamp(48px,9vw,96px);
  padding-bottom:clamp(40px,7vw,72px);
}
.hero h1{
  font-size:clamp(40px,8.2vw,78px);
  max-width:20ch;
}
.hero h1 .swing{color:var(--lime);position:relative;white-space:nowrap}
.hero .lede{margin-top:22px;max-width:54ch}

/* hero court-line backdrop */
.court-bg{position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.9}
.court-bg svg{position:absolute;inset:0;width:100%;height:100%}
.hero-glow{
  position:absolute;z-index:0;
  width:min(70vw,620px);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(214,235,0,.22),transparent 62%);
  top:-12%;right:-10%;filter:blur(4px);pointer-events:none;
}

/* ---- Hero aside: rating preview (signature composition) ---- */
.rating-preview{
  position:relative;border:1.5px solid var(--line);border-radius:26px;padding:26px;
  background:linear-gradient(180deg,rgba(244,246,239,.04),rgba(244,246,239,.01));overflow:hidden;
}
.rp-glow{position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,235,0,.18),transparent 65%)}
.rp-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;position:relative}
.rp-k{font-family:var(--ff-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.rp-tag{font-family:var(--ff-mono);font-size:11px;color:var(--lime);
  border:1px solid rgba(214,235,0,.4);border-radius:999px;padding:4px 10px}
.rp-chips{display:flex;flex-direction:column;gap:14px;position:relative}
.rp-chips .rchip{width:100%}
.rp-chips .rchip .who{flex:1}
.rp-vs{display:flex;align-items:center;gap:12px;padding-inline:4px}
.rp-vs .ln{flex:1;height:1px;background:var(--line)}
.rp-vs .vs{font-family:var(--ff-display);font-weight:800;font-stretch:120%;font-size:13px;
  color:var(--muted-2);letter-spacing:.08em}
.rp-note{margin:22px 4px 0;font-size:13.5px;color:var(--muted);position:relative}

/* ---- Signup form ------------------------------------------ */
.signup{margin-top:34px;max-width:540px}
.field-row{display:flex;flex-direction:column;gap:10px}
.field{
  display:flex;flex-direction:column;gap:6px;
}
.field label{
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted-2);
}
.field label .opt{color:var(--muted-2);opacity:.7}
.field label .req{color:var(--lime);opacity:.9}
.input,.select{
  height:54px;border-radius:14px;
  background:rgba(244,246,239,.05);
  border:1.5px solid var(--line);
  color:var(--paper);font-family:var(--ff-body);font-size:16px;
  padding:0 16px;outline:none;width:100%;
  transition:border-color .15s,background .15s;
}
.input::placeholder{color:var(--muted-2)}
.input:focus,.select:focus{border-color:var(--lime);background:rgba(244,246,239,.08)}
.input.invalid{border-color:var(--neg)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.signup .btn{width:100%;margin-top:4px;height:56px;font-size:17px}

.optnote{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted-2)}
.details-open{display:flex;flex-direction:column;gap:14px;padding-top:14px}

.microtrust{
  margin-top:14px;color:var(--muted-2);font-size:13.5px;
  display:flex;align-items:center;gap:8px;
}
.microtrust svg{flex:none}

/* form states */
.formerror{margin-top:14px;color:var(--neg);font-size:13.5px;
  display:flex;align-items:center;gap:8px}
.formerror::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neg);flex:none}
.signup .btn[disabled]{opacity:.7;cursor:default;transform:none;box-shadow:none}
.btn.loading{color:transparent;position:relative}
.btn.loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2.5px solid rgba(12,15,10,.3);border-top-color:var(--ink);
  animation:xr-spin .7s linear infinite;
}
@keyframes xr-spin{to{transform:rotate(360deg)}}

/* segmented sport switch */
.seg{display:flex;gap:6px;background:rgba(244,246,239,.05);
  border:1.5px solid var(--line);border-radius:14px;padding:5px}
.seg button{
  flex:1;appearance:none;border:0;background:transparent;cursor:pointer;
  height:42px;border-radius:9px;color:var(--muted);
  font-family:var(--ff-display);font-weight:600;font-size:14.5px;
  display:flex;align-items:center;justify-content:center;gap:7px;
  transition:color .15s,background .15s;
}
.seg button .ico{width:16px;height:16px;opacity:.8;display:inline-flex}
.seg button .ico svg{width:16px;height:16px}
.seg button[aria-pressed="true"]{background:var(--lime);color:var(--ink)}
.seg button[aria-pressed="true"] .ico{opacity:1}

/* ---- Success state --------------------------------------- */
.success{
  border:1.5px solid var(--line-strong);border-radius:20px;
  background:linear-gradient(180deg,rgba(214,235,0,.08),rgba(244,246,239,.03));
  padding:30px;max-width:540px;margin-top:34px;
}
.success .tick{
  width:54px;height:54px;border-radius:50%;background:var(--lime);color:var(--ink);
  display:grid;place-items:center;margin-bottom:18px;
}
.success h3{font-family:var(--ff-display);font-weight:800;font-size:24px;margin:0 0 8px}
.success p{margin:0;color:var(--muted)}
.success p b{color:var(--paper)}
.success .queue{
  margin-top:18px;display:flex;align-items:center;gap:12px;
  font-family:var(--ff-mono);font-size:13px;color:var(--lime);
  padding-top:18px;border-top:1px solid var(--line);
}

/* ---- Rating preview chip (signature) ---------------------- */
.rchip{
  display:inline-flex;align-items:stretch;border-radius:16px;overflow:hidden;
  border:1.5px solid var(--line-strong);background:var(--ink-2);
  font-family:var(--ff-mono);min-width:0;
}
.rchip .who{padding:14px 18px;display:flex;flex-direction:column;gap:3px;justify-content:center}
.rchip .who .nm{font-family:var(--ff-display);font-weight:700;font-size:16px;letter-spacing:-.01em}
.rchip .who .rt{font-size:12px;color:var(--muted)}
.rchip .delta{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:14px 20px;min-width:96px;border-left:1.5px solid var(--line);
}
.rchip .delta .lbl{font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.rchip .delta .pair{display:flex;align-items:baseline;gap:8px;margin-top:4px}
.rchip .delta .up{color:var(--pos);font-size:22px;font-weight:700}
.rchip .delta .dn{color:var(--neg);font-size:15px}

/* ---- Section scaffolding ---------------------------------- */
section{position:relative}
.sec{padding-block:clamp(64px,10vw,120px)}
.sec-head{max-width:none}
.sec-head h2{font-size:clamp(32px,6vw,60px);margin:14px 0 0;max-width:26ch}
.sec-head .lede{margin-top:18px;max-width:54ch}

/* ---- XR Rating spotlight ---------------------------------- */
.spotlight{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scenarios{display:grid;gap:18px;margin-top:42px}
.scn{
  position:relative;border:1.5px solid var(--line);border-radius:22px;
  padding:26px;background:
    radial-gradient(120% 100% at 100% 0,rgba(214,235,0,.06),transparent 60%);
  overflow:hidden;
}
.scn .tagrow{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.scn .badge{
  font-family:var(--ff-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:6px 11px;border-radius:999px;border:1px solid var(--line-strong);color:var(--muted);
}
.scn.win .badge{color:var(--lime);border-color:rgba(214,235,0,.4)}
.scn h3{font-family:var(--ff-display);font-weight:800;font-size:21px;margin:0 0 8px;line-height:1.1}
.scn p{margin:0;color:var(--muted);font-size:15px}
.scn .gain{
  font-family:var(--ff-mono);font-weight:700;line-height:1;
  display:flex;align-items:baseline;gap:6px;margin-top:22px;
}
.scn .gain .n{font-size:clamp(40px,9vw,58px);color:var(--lime)}
.scn .gain .n.small{font-size:clamp(28px,6vw,38px);color:var(--muted)}
.scn .gain .u{font-size:13px;color:var(--muted-2);letter-spacing:.1em;text-transform:uppercase}
.scn .strength{margin-top:18px}
.strbar{height:8px;border-radius:999px;background:rgba(244,246,239,.08);overflow:hidden}
.strbar i{display:block;height:100%;background:linear-gradient(90deg,var(--lime-deep),var(--lime));border-radius:999px}
.strlabel{display:flex;justify-content:space-between;font-size:11px;color:var(--muted-2);
  font-family:var(--ff-mono);letter-spacing:.06em;margin-top:8px}

/* ---- Features grid ---------------------------------------- */
.feat-grid{display:grid;gap:16px;margin-top:46px}
.feat{
  position:relative;
  border:1.5px solid var(--line);border-radius:22px;padding:26px;
  background:rgba(244,246,239,.02);
  transition:border-color .2s,transform .2s,background .2s;
}
.feat:hover{border-color:var(--line-strong);transform:translateY(-3px);background:rgba(244,246,239,.04)}
.feat .ic{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(214,235,0,.1);color:var(--lime);margin-bottom:18px;
}
.feat .ic svg{width:24px;height:24px}
.feat h3{font-family:var(--ff-display);font-weight:700;font-size:19px;margin:0 0 8px;letter-spacing:-.01em}
.feat p{margin:0;color:var(--muted);font-size:14.5px}
.feat .num{
  position:absolute;top:22px;right:24px;font-family:var(--ff-mono);
  font-size:12px;color:var(--muted-2);
}

/* mini open-match card inside feature */
.mmatch{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;
  border:1px solid var(--line);background:var(--ink-2);margin-top:16px}
.mmatch .dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(214,235,0,.16);flex:none}
.mmatch .mi{flex:1;min-width:0}
.mmatch .mi b{font-family:var(--ff-display);font-size:14px;font-weight:700;display:block}
.mmatch .mi span{font-size:12px;color:var(--muted)}
.mmatch .join{font-family:var(--ff-mono);font-size:11px;color:var(--lime);
  border:1px solid rgba(214,235,0,.4);border-radius:999px;padding:6px 11px;letter-spacing:.06em;white-space:nowrap}

/* stat sparkline */
.spark{display:flex;align-items:flex-end;gap:5px;height:40px;margin-top:16px}
.spark i{flex:1;background:linear-gradient(180deg,var(--lime),var(--lime-deep));
  border-radius:3px 3px 0 0;opacity:.85}

/* ---- Audience: circoli & maestri -------------------------- */
.audience{border-top:1px solid var(--line)}
.aud-grid{display:grid;gap:18px;margin-top:46px}
.aud{
  position:relative;border:1.5px solid var(--line);border-radius:22px;padding:28px;
  background:radial-gradient(120% 100% at 0 0,rgba(214,235,0,.06),transparent 58%);
}
.aud-head{display:flex;align-items:center;gap:13px;margin-bottom:16px}
.aud-ic{
  width:46px;height:46px;border-radius:13px;flex:none;display:grid;place-items:center;
  background:rgba(214,235,0,.1);color:var(--lime);
}
.aud-ic svg{width:24px;height:24px}
.aud-head h3{font-family:var(--ff-display);font-weight:800;font-size:22px;margin:0;letter-spacing:-.01em}
.aud-tag{
  margin-left:auto;font-family:var(--ff-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line-strong);border-radius:999px;padding:5px 10px;white-space:nowrap;
}
.aud-lede{margin:0 0 18px;color:var(--paper);font-size:15.5px;font-weight:500;line-height:1.5}
.aud-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:13px}
.aud-list li{position:relative;padding-left:27px;color:var(--muted);font-size:14.5px;line-height:1.5}
.aud-list li b{color:var(--paper);font-weight:700}
.aud-list li::before{
  content:"✓";position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;
  background:rgba(214,235,0,.14);color:var(--lime);
  font-family:var(--ff-mono);font-size:10px;font-weight:700;display:grid;place-items:center;
}
.aud-more{
  margin:20px 0 0;padding-top:16px;border-top:1px solid var(--line);
  font-family:var(--ff-mono);font-size:12px;letter-spacing:.02em;color:var(--muted-2);
}

/* ---- How it works band ------------------------------------ */
.steps{display:grid;gap:14px;margin-top:42px}
.step{display:flex;gap:18px;align-items:flex-start;padding:22px;border-radius:18px;
  border:1px solid var(--line)}
.step .n{
  font-family:var(--ff-display);font-weight:800;font-size:18px;
  width:42px;height:42px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--lime);color:var(--ink);
}
.step h4{font-family:var(--ff-display);font-weight:700;font-size:17px;margin:0 0 4px}
.step p{margin:0;color:var(--muted);font-size:14.5px}

/* ---- Final CTA -------------------------------------------- */
.final{
  background:
    radial-gradient(120% 140% at 50% -20%,rgba(214,235,0,.14),transparent 55%),
    var(--ink);
  border-top:1px solid var(--line);
  text-align:center;
}
.final .wrap{display:flex;flex-direction:column;align-items:center}
.final h2{font-size:clamp(34px,8vw,76px);max-width:16ch}
.final .lede{margin-top:18px;max-width:44ch}
.final .signup{margin-inline:auto;text-align:left;width:100%}

/* ---- Footer ----------------------------------------------- */
.site-foot{border-top:1px solid var(--line);padding-block:38px}
.site-foot .wrap{display:flex;flex-direction:column;gap:20px}
.foot-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sport-tags{display:flex;gap:8px}
.sport-tags span{font-family:var(--ff-mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted-2);border:1px solid var(--line);
  padding:5px 10px;border-radius:999px}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px 20px;flex-wrap:wrap}
.foot-fine{color:var(--muted-2);font-size:12.5px;margin:0}
.foot-legal{display:flex;gap:18px;flex-shrink:0}
.foot-legal a{color:var(--muted);font-size:12.5px;transition:color .15s ease}
.foot-legal a:hover{color:var(--paper)}

/* ---- Responsive ------------------------------------------- */
@media (min-width:560px){
  .head-tag{display:block}
  .feat-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:720px){
  .scenarios{grid-template-columns:1fr 1fr}
  .aud-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step{flex-direction:column}
}
@media (min-width:960px){
  .hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center}
  .hero-aside{position:relative;align-self:center}
  .hero h1{font-size:clamp(44px,4.8vw,60px)}
  .feat-grid{grid-template-columns:repeat(3,1fr)}
  .signup{margin-top:30px}
}

/* ---- Età: input numerico senza freccette (spinner) -------- */
.input[type=number]{-moz-appearance:textfield;appearance:textfield}
.input[type=number]::-webkit-outer-spin-button,
.input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

/* ---- Dropdown custom ("Sei un…") -------------------------- */
.dropdown{position:relative}
.dd-trigger{
  width:100%;height:54px;border-radius:14px;
  background:rgba(244,246,239,.05);border:1.5px solid var(--line);
  color:var(--paper);font-family:var(--ff-body);font-size:16px;
  padding:0 14px 0 16px;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  transition:border-color .15s,background .15s;
}
.dd-trigger:hover{background:rgba(244,246,239,.08)}
.dd-value.placeholder{color:var(--muted-2)}
.dropdown.invalid .dd-trigger{border-color:var(--neg)}
.dd-trigger[aria-expanded="true"]{border-color:var(--lime);background:rgba(244,246,239,.08)}
.dd-chev{width:18px;height:18px;color:var(--muted-2);flex:none;transition:transform .2s}
.dd-trigger[aria-expanded="true"] .dd-chev{transform:rotate(180deg);color:var(--lime)}
.dd-menu{
  position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:30;
  margin:0;padding:6px;list-style:none;
  background:var(--ink-2);border:1.5px solid var(--line-strong);border-radius:14px;
  box-shadow:0 20px 44px -18px rgba(0,0,0,.75);outline:none;
}
.dd-menu[hidden]{display:none}
.dd-menu li{
  padding:11px 12px;border-radius:9px;cursor:pointer;font-size:15px;color:var(--paper);
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  transition:background .12s;
}
.dd-menu li:hover,.dd-menu li.active{background:rgba(244,246,239,.07)}
.dd-menu li[aria-selected="true"]{color:var(--lime)}
.dd-menu li[aria-selected="true"]::after{content:"✓";font-family:var(--ff-mono);font-size:12px}

/* ---- Consenso privacy ------------------------------------- */
.consent{
  display:flex;align-items:flex-start;gap:11px;margin-top:18px;
  font-size:13.5px;line-height:1.45;color:var(--muted);cursor:pointer;
}
.consent input{
  margin:1px 0 0;width:18px;height:18px;flex:none;cursor:pointer;accent-color:var(--lime);
}
.consent a{color:var(--lime);text-decoration:underline;text-underline-offset:2px}
.consent.invalid{color:var(--neg)}
.consent.invalid a{color:var(--neg)}

/* ---- Reduced motion --------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important}
}