/**
 * TV Tracker — landing (tvtracker.it)
 *
 * Linguaggio visivo preso da tool/store_assets/framer.html, che genera gli
 * screenshot promozionali di Play Store e App Store: parete di locandine in
 * bianco e nero tinta di primario (blend `color`), gradiente panoramico in
 * `screen`, titolo con frase accento in ciano sottolineata.
 * Palette: memory/Design-system.md §1 · lib/theme/app_colors.dart
 * Font: stack di sistema, come l'app (Design-system §2) e come framer.
 */

:root{
  --ink:#0F111A;          /* BackgroundDark */
  --ink-2:#141726;
  --card:#1A1D2D;         /* SurfaceDark */
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --violet:#6C63FF;       /* PrimaryAccent */
  --cyan:#00E5FF;         /* SecondaryAccent */
  --violet-btn:#655CF7;   /* PrimaryAccent scurito: testo bianco 4.74:1 */
  --violet-lt:#A9A3FF;    /* PrimaryAccent schiarito, per il VIOLA USATO COME TESTO */
  --violet-btn-h:#5B51EE;
  --text:#FFFFFF;
  --dim:#B0B7C3;          /* TextSecondary */
  --dimmer:#8C93A2;      /* AA su --ink: 5.77:1 */
  --wrap:1140px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;color-scheme:dark;-webkit-text-size-adjust:100%}
body{
  background:var(--ink);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit}
::selection{background:rgba(108,99,255,.45)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ─────────── frase accento (firma framer.html) ─────────── */
.acc{
  font-style:normal;
  font-weight:800;
  color:var(--cyan);
  text-shadow:0 0 28px rgba(0,229,255,.40);
  background:linear-gradient(var(--cyan),var(--cyan)) 0 96%/100% .045em no-repeat;
  padding-bottom:.10em;
}

/* ─────────── header ─────────── */
.top{
  position:sticky;top:0;z-index:60;
  background:rgba(15,17,26,.78);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--line-soft);
}
.top__in{
  max-width:var(--wrap);margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.brand img{width:34px;height:34px;border-radius:9px}
.brand span{font-size:18px;font-weight:700;letter-spacing:-.02em}
.top__nav{display:flex;align-items:center;gap:20px}
.top__link{
  font-size:15px;font-weight:500;color:var(--dim);text-decoration:none;
  transition:color .18s;
}
.top__link:hover{color:var(--text)}

/* ─────────── badge ufficiali degli store ─────────── */
.badges{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.badge{
  display:block;line-height:0;
  border-radius:8px;
  transition:transform .18s cubic-bezier(.2,.8,.3,1),opacity .18s;
}
.badge:hover{transform:translateY(-2px)}
.badge:active{transform:translateY(0)}
.badge img,.badge svg{height:52px;width:auto;display:block}
/* il PNG di Google ha già il suo margine interno: pareggia l'ottica con Apple */
.badge--play img{height:70px;margin:-9px}

.soon{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:var(--dim);
}
.soon b{
  font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--dim);padding:4px 8px;border-radius:5px;
  background:rgba(255,255,255,.07);border:1px solid var(--line-soft);
}

/* ─────────── hero ─────────── */
.hero{position:relative;isolation:isolate;overflow:hidden}

.wall{position:absolute;inset:0;z-index:-1;isolation:isolate;overflow:hidden}
.wall__grid{
  position:absolute;inset:-10% -2% auto;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1.1%;
  filter:grayscale(1) contrast(1.35) brightness(.85);
  opacity:.68;
}
.wall__grid img{width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:6%}
.wall__tint{position:absolute;inset:0;background:var(--violet);mix-blend-mode:color;opacity:.72}
.wall__grad{
  position:absolute;inset:0;mix-blend-mode:screen;
  background:linear-gradient(118deg,
    rgba(108,99,255,.26) 0%,
    rgba(0,229,255,.20) 45%,
    rgba(108,99,255,.24) 75%,
    rgba(0,229,255,.18) 100%);
}
.wall__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(15,17,26,.55) 0%,rgba(15,17,26,.30) 30%,rgba(15,17,26,.86) 82%,var(--ink) 100%),
    radial-gradient(ellipse 66% 62% at 24% 48%,rgba(15,17,26,.90),transparent 74%);
}

.hero__in{
  position:relative;
  display:grid;grid-template-columns:1fr minmax(280px,380px);
  align-items:center;gap:clamp(32px,5vw,72px);
  padding:clamp(56px,8vw,104px) 24px clamp(64px,8vw,104px);
  max-width:var(--wrap);margin:0 auto;
}
.hero h1{
  font-size:clamp(2.3rem,5.4vw,3.9rem);
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.028em;
  text-wrap:balance;
  text-shadow:0 2px 24px rgba(0,0,0,.55);
}
.hero__sub{
  margin-top:18px;max-width:44ch;
  font-size:clamp(1.02rem,1.5vw,1.18rem);
  color:#D6DAE3;
  text-shadow:0 1px 14px rgba(0,0,0,.5);
}
.hero .badges{margin-top:32px}
.hero .soon{margin-top:18px}

/* telefono */
.device{
  position:relative;
  width:100%;max-width:302px;margin-inline:auto;
  border-radius:12.5%/6%;
  padding:1.9%;
  background:linear-gradient(155deg,#3a3f5c,#15182a 55%,#2a2e45);
  box-shadow:
    0 50px 90px -30px rgba(0,0,0,.85),
    0 0 0 1px rgba(255,255,255,.07),
    0 0 70px -20px rgba(108,99,255,.45);
}
.device .screen{border-radius:11%/5.2%}

/* ─────────── sezioni ─────────── */
.sec{padding:clamp(60px,8vw,100px) 0}
.sec + .sec{border-top:1px solid var(--line-soft)}
.sec__head{max-width:34ch}
.sec h2{
  font-size:clamp(1.75rem,3.4vw,2.5rem);
  font-weight:700;line-height:1.12;letter-spacing:-.025em;
  text-wrap:balance;
}
.sec__lead{margin-top:14px;max-width:56ch;color:var(--dim);font-size:1.03rem}

/* griglia funzionalità: righe della voce framer */
.feats{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;margin-top:clamp(36px,4vw,52px);
  background:var(--line-soft);
  border:1px solid var(--line-soft);
  border-radius:14px;overflow:hidden;
}
.feat{background:var(--ink);padding:30px 26px;display:flex;flex-direction:column;gap:14px}
.feat svg{width:22px;height:22px;color:var(--violet);flex:none}
.feat h3{font-size:1.06rem;font-weight:700;line-height:1.3;letter-spacing:-.015em}
.feat p{color:var(--dim);font-size:.94rem;line-height:1.5}

/* ─────────── assistenza ─────────── */
.sup{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,56px);align-items:start}
.sup ul{list-style:none;margin-top:24px;display:grid;gap:11px}
.sup ul li{display:flex;gap:11px;color:var(--dim);font-size:.96rem;line-height:1.5}
.sup ul li svg{width:17px;height:17px;color:var(--violet);flex:none;margin-top:5px}
.card{border:1px solid var(--line);border-radius:16px;background:var(--ink-2);padding:clamp(22px,3vw,30px)}
.form{display:grid;gap:15px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.field{display:grid;gap:7px}
.field label{font-size:.86rem;font-weight:600;color:var(--dim)}
.field input,.field textarea{
  width:100%;padding:13px 15px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text);font:inherit;font-size:.97rem;
  transition:border-color .18s,background .18s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--dimmer)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--violet);background:rgba(108,99,255,.05)}
.field textarea{min-height:130px;resize:vertical}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font:inherit;font-size:15px;font-weight:600;
  padding:13px 22px;border-radius:11px;min-height:46px;border:0;cursor:pointer;
  background:var(--violet-btn);color:#fff;text-decoration:none;
  transition:background .18s,transform .16s cubic-bezier(.2,.8,.3,1);
}
.btn:hover{background:var(--violet-btn-h);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.form .btn{width:100%}

.form-honeypot{position:absolute;left:-9999px;height:0;overflow:hidden;opacity:0}
.form-alert{display:none;margin-bottom:16px;padding:13px 15px;border-radius:10px;font-size:.92rem;font-weight:600;line-height:1.45}
.form-alert.is-visible{display:block}
.form-alert.success{color:#8EE4A8;background:rgba(76,175,111,.13);border:1px solid rgba(76,175,111,.32)}
.form-alert.error{color:#FF9A9A;background:rgba(255,68,68,.11);border:1px solid rgba(255,68,68,.32)}

/* ─────────── chiusura + footer ─────────── */
.close{border-top:1px solid var(--line-soft);padding:clamp(60px,8vw,92px) 0;text-align:center}
.close h2{font-size:clamp(1.8rem,3.6vw,2.5rem);font-weight:700;letter-spacing:-.025em;line-height:1.12;max-width:20ch;margin:0 auto;text-wrap:balance}
.close p{margin-top:14px;color:var(--dim)}
.close .badges{justify-content:center;margin-top:30px}

footer{border-top:1px solid var(--line-soft);padding:24px 0 40px}
.foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:.88rem;color:var(--dimmer)}
.foot nav{display:flex;flex-wrap:wrap;gap:22px}
.foot a{text-decoration:none;color:var(--dimmer);transition:color .18s}
.foot a:hover{color:var(--cyan)}

/* ─────────── responsive ─────────── */
@media (max-width:940px){
  .hero__in{grid-template-columns:1fr;gap:48px;text-align:center}
  .hero__sub{margin-inline:auto}
  .hero .badges{justify-content:center}
  .hero .soon{justify-content:center;width:100%}
  .device{max-width:300px}
  .feats{grid-template-columns:repeat(2,1fr)}
  .sup{grid-template-columns:1fr}
  .sec__head{max-width:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .top__link{display:none}
  .feats{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .badges{justify-content:center}
  .badge img,.badge svg{height:46px}
  .badge--play img{height:62px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .badge:hover,.btn:hover{transform:none}
}

/* ─────────── sezione "Dentro l'app": tre schermate ─────────── */
.shots{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(24px,3vw,44px);
  margin-top:clamp(40px,5vw,60px);
}
.shot{margin:0}
.shot .device{max-width:318px;box-shadow:0 34px 64px -26px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.07)}
.shot figcaption{margin-top:26px;text-align:center}
.shot h3{font-size:1.1rem;font-weight:700;letter-spacing:-.015em}
.shot p{margin-top:8px;color:var(--dim);font-size:.94rem;line-height:1.5;max-width:34ch;margin-inline:auto}

@media (max-width:900px){
  .shots{grid-template-columns:1fr;gap:56px;max-width:340px;margin-inline:auto}
}