/* =========================================================
   MillaItaly Hub — style.css (v0.1.2)
   Mobile-first, dark, leggibile.
   Struttura:
   1) Tokens
   2) Base
   3) Layout
   4) Components
   5) Utilities
   ========================================================= */

/* 1) TOKENS */
:root{
  /* Surfaces */
  --bg-0: #0b0d12;        /* page */
  --bg-1: #0f131b;        /* header/sections */
  --bg-2: rgba(255,255,255,.04); /* cards */
  --bg-3: rgba(255,255,255,.06); /* hover */

  /* Text */
  --tx-0: #f3f5ff;        /* primary */
  --tx-1: rgba(243,245,255,.72); /* secondary */
  --tx-2: rgba(243,245,255,.52); /* muted */

  /* Accents */
  --ac-0: #ff6fb1;        /* pink */
  --ac-1: #5ee7ff;        /* cyan */
  --ac-2: #a78bfa;        /* violet */

  /* Border & shadow */
  --bd: rgba(255,255,255,.10);
  --bd-2: rgba(255,255,255,.14);
  --sh: 0 18px 45px rgba(0,0,0,.45);

  /* Typography */
  --ff: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --fs-0: 0.875rem;
  --fs-1: 1rem;
  --fs-2: 1.125rem;
  --fs-3: 1.35rem;
  --fs-4: 1.9rem;
  --fs-5: 2.6rem;
  --lh: 1.55;

  /* Spacing */
  --s-1: .5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;

  /* Radius */
  --r-1: .85rem;
  --r-2: 1.25rem;
  --r-3: 1.75rem;

  /* Layout */
  --container: 1120px;
}

/* 2) BASE */
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--ff);
  font-size:var(--fs-1);
  line-height:var(--lh);
  color:var(--tx-0);
  background:
    radial-gradient(1200px 700px at 10% -10%, rgba(255,111,177,.18), transparent 55%),
    radial-gradient(900px 650px at 90% 10%, rgba(94,231,255,.14), transparent 55%),
    radial-gradient(1000px 700px at 45% 110%, rgba(167,139,250,.12), transparent 60%),
    var(--bg-0);
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:none; }
button{ font:inherit; }
:focus-visible{ outline:2px solid var(--ac-1); outline-offset:3px; }
::selection{ background: rgba(94,231,255,.22); }

/* 3) LAYOUT */
.container{ width:min(100% - 2rem, var(--container)); margin-inline:auto; }
.section{ padding: var(--s-5) 0; }
.stack{ display:flex; flex-direction:column; gap: var(--s-2); }
.grid{ display:grid; gap: var(--s-3); }
@media (min-width: 860px){
  .grid--2{ grid-template-columns: 1fr 1fr; }
  .grid--3{ grid-template-columns: repeat(3, 1fr); }
}

/* 4) COMPONENTS */

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(15,19,27,.92), rgba(15,19,27,.72));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bd);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: var(--s-2);
  padding: .9rem 0;
}
.brand{
  display:flex;
  align-items:center;
  gap: .8rem;
  font-weight: 850;
  letter-spacing: .2px;
}
.brand-mark{
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: conic-gradient(from 180deg, var(--ac-0), var(--ac-1), var(--ac-2), var(--ac-0));
  box-shadow: var(--sh);
  border: 1px solid rgba(255,255,255,.12);
}
.brand small{
  display:block;
  font-weight: 650;
  font-size: var(--fs-0);
  color: var(--tx-2);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-top: .1rem;
}

.nav{
  display:flex;
  gap: .25rem;
  align-items:center;
}
.nav a{
  padding: .55rem .8rem;
  border-radius: 999px;
  color: var(--tx-1);
  border: 1px solid transparent;
}
.nav a:hover{
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.08);
}
.nav a[aria-current="page"]{
  color: var(--tx-0);
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.10);
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  padding:.55rem .85rem;
  border-radius: 999px;
  border:1px solid var(--bd);
  background: rgba(255,255,255,.04);
  color: var(--tx-0);
}
.nav-toggle:hover{ background: rgba(255,255,255,.06); }

@media (min-width: 860px){
  .nav-toggle{ display:none; }
}

/* Mobile nav panel */
.mobile-nav{
  display:none;
  border-top: 1px solid rgba(255,255,255,.08);
}
.mobile-nav.is-open{ display:block; }
.mobile-nav a{
  display:block;
  padding: .95rem 0;
  color: var(--tx-1);
  border-bottom:1px solid rgba(255,255,255,.06);
}
@media (min-width: 860px){
  .mobile-nav{ display:none !important; }
}

/* Hero */
.kicker{
  color: var(--tx-2);
  font-size: var(--fs-0);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.h1{
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.06;
  margin: .2rem 0 .2rem;
}
.lead{
  font-size: var(--fs-2);
  color: var(--tx-1);
  max-width: 64ch;
}
.sublead{
  color: var(--tx-2);
  max-width: 70ch;
  margin: 0;
}

.button-row{
  display:flex;
  flex-wrap:wrap;
  gap: .8rem;
  margin-top: 1.15rem;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: .85rem 1.05rem;
  border-radius: 999px;
  border:1px solid var(--bd);
  background: rgba(255,255,255,.04);
  color: var(--tx-0);
  font-weight: 750;
}
.btn:hover{ background: rgba(255,255,255,.06); }
.btn--primary{
  border-color: transparent;
  background: linear-gradient(135deg, rgba(255,111,177,.95), rgba(94,231,255,.95));
  color: #081018;
}
.btn--primary:hover{
  filter: brightness(1.03);
}

/* Cards & boxes */
.card{
  padding: var(--s-3);
  border-radius: var(--r-2);
  border: 1px solid var(--bd);
  background: var(--bg-2);
  box-shadow: 0 10px 26px rgba(0,0,0,.28);
}
.card h3{ margin:0 0 .5rem; font-size: var(--fs-3); }
.card p{ margin:0; color: var(--tx-1); }

.app-box{
  border-radius: var(--r-3);
  border: 1px solid var(--bd-2);
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow: var(--sh);
  padding: var(--s-4);
}
.app-box__header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: var(--s-3);
  margin-bottom: var(--s-3);
}
.app-box__title{
  margin:0;
  font-size: var(--fs-3);
}
.app-box__subtitle{
  margin: .35rem 0 0;
  color: var(--tx-1);
  max-width: 62ch;
}

.app-grid{
  display:grid;
  gap: var(--s-3);
}
@media (min-width: 860px){
  .app-grid{ grid-template-columns: repeat(3, 1fr); }
}

.app-tile{
  border-radius: var(--r-2);
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.12);
  padding: var(--s-3);
  transition: transform .14s ease, background .14s ease, border-color .14s ease;
}
.app-tile:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.14);
}
.app-tile__top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: var(--s-2);
  margin-bottom: .6rem;
}
.app-tile__name{
  margin:0;
  font-size: 1.05rem;
}
.app-tile__desc{
  margin:0;
  color: var(--tx-1);
  font-size: var(--fs-0);
}

/* Badge */
.badge{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.28rem .62rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: var(--tx-1);
  font-size: var(--fs-0);
  font-weight: 750;
}
.badge::before{
  content:"";
  width:.45rem; height:.45rem;
  border-radius:999px;
  background: var(--ac-1);
  box-shadow: 0 0 0 3px rgba(94,231,255,.12);
  display:inline-block;
}

/* Footer */
.site-footer{
  border-top: 1px solid var(--bd);
  padding: var(--s-4) 0;
  color: var(--tx-2);
}
.footer-grid{
  display:grid;
  gap: var(--s-3);
}
@media (min-width: 860px){
  .footer-grid{ grid-template-columns: 2fr 1fr 1fr; }
}
.footer-grid a{ color: var(--tx-1); }
.footer-grid a:hover{ color: var(--tx-0); }

/* 5) UTILITIES */
.u-muted{ color: var(--tx-2); }
.u-hide{ display:none !important; }
.u-max{ max-width: 70ch; }