/* =============================================================
   NIVES.AI — REDESIGN STAGING
   Step 1: base layout porting dal sito attuale
   Step 2: animazioni hero canvas/WebGL
   Step 3: scroll reveal e micro-interazioni
   ============================================================= */

/* --- TOKEN --- */
:root {
  --ink:        #0f1a2b;
  --ink-2:      #3b4757;
  --muted:      #6b7684;
  --line:       #d9dee5;
  --paper:      #fbfcfd;
  --ice:        #eef2f7;
  --ice-2:      #e2e8f0;
  --amber:      #c8781a;
  --amber-deep: #9a5a10;

  --serif: 'Fraunces', Georgia, serif;
  --sans:  'Public Sans', Helvetica, Arial, sans-serif;

  --r-s:  4px;
  --r-m:  10px;
  --sh-1: 0 1px 2px rgba(15,26,43,.06);
  --sh-2: 0 12px 32px -12px rgba(15,26,43,.25);

  /* Step 2 placeholder: lerp vars per canvas */
  --hero-glow-x: 50%;
  --hero-glow-y: 40%;
}

/* --- RESET --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }

/* --- SKIP LINK (accessibilità) --- */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 16px;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--r-s);
  font-weight: 600;
  text-decoration: none;
  font-size: 15px;
}
.skip-link:focus { top: 8px; }

/* --- LAYOUT --- */
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

/* --- TIPO --- */
.kick {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber-deep);
}
.kick--light { color: #e9b46a; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -.015em;
  line-height: 1.1;
}
h1 { font-size: clamp(34px, 6vw, 64px); }
h1 b { font-weight: 600; }
h2 { font-size: clamp(28px, 3.6vw, 42px); margin: 10px 0 18px; }
h3 { font-size: 22px; font-weight: 600; margin-bottom: 6px; }
p  { max-width: 62ch; }

/* --- BUTTONS --- */
.btn {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 22px;
  border-radius: var(--r-s);
  line-height: 1.2;
  transition: background .18s;
}
.btn:hover    { background: #1c2b45; }
.btn.ghost    { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn--amber   { background: var(--amber); }
.btn--amber:hover { background: var(--amber-deep); }

/* --- HEADER --- */
header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 26px;
  text-decoration: none;
  letter-spacing: -.02em;
}
.logo span { color: var(--amber); }
.nav nav   { display: flex; gap: 26px; font-size: 15px; }
.nav nav a { text-decoration: none; color: var(--ink-2); }
.nav nav a:hover { color: var(--ink); }
.nav .btn  { padding: 10px 16px; font-size: 15px; }

/* --- HERO --- */
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
  pointer-events: none;
}

.hero {
  position: relative;
  overflow: hidden;
  background: #07101e;
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(64px, 10vw, 120px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

/* Hero dark theme */
.hero .kick      { color: #e9b46a; }
.hero h1         { color: #eef4ff; font-size: clamp(40px, 7vw, 80px); }
.hero h1 b       { color: #ffffff; }
.hero .lead      { font-size: clamp(18px, 1.6vw, 22px); color: #8aa4c0; margin: 20px 0 28px; }
.hero .cta       { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero .fine      { font-size: 14px; color: #4e6680; margin-top: 14px; }
.hero .btn.ghost { color: rgba(238,244,255,.9); border-color: rgba(255,255,255,.22); background: transparent; }
.hero .btn.ghost:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.42); }
.hero .report {
  background: rgba(255,255,255,.97);
  border-color: transparent;
  box-shadow: 0 28px 72px -8px rgba(0,0,0,.60), 0 0 0 1px rgba(255,255,255,.10);
}

/* --- REPORT CARD --- */
.report {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  box-shadow: var(--sh-2);
  padding: 22px 24px;
  font-size: 15px;
  min-width: 0;
}
.report__hd {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin-bottom: 12px;
}
.report__hd b   { font-family: var(--serif); font-size: 18px; font-weight: 600; }
.report__hd span { font-size: 12px; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.report ol  { list-style: none; }
.report li  {
  display: grid;
  grid-template-columns: minmax(52px, auto) 1fr;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--ice-2);
}
.report li:last-child { border-bottom: none; }
.report time {
  font-variant-numeric: tabular-nums;
  color: var(--amber-deep);
  font-weight: 600;
  font-size: 13px;
  padding-top: 2px;
}
.report li p   { color: var(--ink-2); }
.report li p b { color: var(--ink); font-weight: 600; }
.report__ask {
  margin-top: 12px;
  background: var(--ice);
  border-radius: var(--r-s);
  padding: 10px 12px;
  font-size: 14px;
  color: var(--ink-2);
}

/* --- PERFORMANCE: content-visibility sulle sezioni sotto la fold --- */
.day, .how, .price, .limits, .final {
  content-visibility: auto;
  contain-intrinsic-size: 0 640px;
}

/* --- GIORNATA --- */
.day {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--line);
}
.day__intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: clamp(20px, 4vw, 60px);
  margin-bottom: 40px;
}
.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 2px solid var(--ink);
}
.timeline__item {
  padding: 22px 22px 0 0;
  border-right: 1px solid var(--line);
  margin-right: 22px;
}
.timeline__item:last-child { border-right: none; margin-right: 0; }
.timeline__item time {
  display: block;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  margin-bottom: 10px;
}
.timeline__item p { font-size: 15.5px; color: var(--ink-2); }

/* --- COME LAVORA --- */
.how {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--ice);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.how__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
}
.list { list-style: none; margin-top: 10px; }
.list li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-bottom: 1px solid var(--ice-2);
  color: var(--ink-2);
}
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35em;
  width: 12px;
  height: 2px;
  background: var(--amber);
}
.list li b { color: var(--ink); font-weight: 600; }

/* --- PREZZO --- */
.price { padding: clamp(48px, 7vw, 96px) 0; }
.price__card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
  box-shadow: var(--sh-1);
  background: #fff;
}
.price__main { padding: clamp(24px, 3.5vw, 44px); }
.price__side {
  padding: clamp(24px, 3.5vw, 44px);
  background: var(--ice);
  border-left: 1px solid var(--line);
}
.amount {
  font-family: var(--serif);
  font-size: clamp(44px, 5vw, 64px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  margin: 10px 0 4px;
}
.amount small {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0;
}
.fine { font-size: 14px; color: var(--muted); margin-top: 16px; }
.price__side dl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px 16px;
  font-size: 15.5px;
}
.price__side dt { color: var(--ink-2); }
.price__side dd {
  text-align: right;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* --- LIMITI --- */
.limits { padding: 0 0 clamp(48px, 7vw, 96px); }
.limits__box {
  border-left: 3px solid var(--amber);
  padding: 6px 0 6px 22px;
  max-width: 70ch;
  color: var(--ink-2);
}

/* --- FINALE --- */
.final {
  padding: clamp(56px, 8vw, 110px) 0;
  background: var(--ink);
  color: #fff;
}
.final h2  { color: #fff; }
.final p   { color: #c9d2df; }
.final .cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 26px;
}
.final .alt { color: #c9d2df; font-size: 15px; }

/* --- FOOTER --- */
.footer {
  padding: 26px 0;
  font-size: 13.5px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- SCROLL REVEAL --- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .65s cubic-bezier(.22,.68,0,1.1),
              transform .65s cubic-bezier(.22,.68,0,1.1);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --- MICRO-INTERAZIONI: timeline --- */
.timeline__item {
  transition: transform .24s ease;
}
.timeline__item.is-visible {
  /* override del reveal: usa transizione più rapida per hover una volta comparso */
  transition: transform .24s ease;
}
.timeline__item:hover {
  transform: translateY(-5px);
}
.timeline__item time {
  transition: color .22s;
}
.timeline__item:hover time {
  color: var(--amber);
}

/* --- MICRO-INTERAZIONI: liste canali/ruoli --- */
.list li {
  transition: background .2s, padding-left .2s;
}
.list li:hover {
  background: rgba(200,120,26,.07);
  padding-left: 30px;
}
.list li::before {
  transition: width .2s, background .2s;
}
.list li:hover::before {
  width: 16px;
  background: var(--amber-deep);
}

/* --- MICRO-INTERAZIONI: price card --- */
.price__card {
  transition: box-shadow .28s ease, transform .28s ease;
}
.price__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 64px -12px rgba(15,26,43,.20);
}

/* --- MICRO-INTERAZIONI: limiti box --- */
.limits__box {
  transition: border-color .25s, padding-left .25s;
}
.limits__box:hover {
  border-color: var(--amber-deep);
  padding-left: 28px;
}

/* --- HEADER: slide-in al caricamento --- */
header {
  animation: hdrIn .45s cubic-bezier(.22,.68,0,1.1) both;
}
@keyframes hdrIn {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: none; opacity: 1; }
}

/* --- RESPONSIVE: 900px (tablet) --- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .timeline__item {
    border-right: none;
    margin-right: 0;
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
    margin-bottom: 4px;
  }
  .timeline__item:last-child { border-bottom: none; }
  .day__intro, .how__cols, .price__card { grid-template-columns: 1fr; }
  .price__side { border-left: none; border-top: 1px solid var(--line); }
  /* hero: report card a larghezza piena sotto il testo */
  .report { max-width: 520px; }
}

/* --- RESPONSIVE: 520px (mobile) --- */
@media (max-width: 520px) {
  .nav nav    { display: none; }
  .timeline   { grid-template-columns: 1fr; }
  .report li  { grid-template-columns: minmax(44px, auto) 1fr; }
  body        { font-size: 16px; }
  /* bottoni CTA affiancati su mobile, ma con wrap */
  .hero .cta, .final .cta { gap: 10px; }
  /* footer su colonna unica */
  .footer { flex-direction: column; gap: 6px; }
}

/* --- RESPONSIVE: 380px (piccoli — iPhone SE, Galaxy A) --- */
@media (max-width: 380px) {
  /* header: logo più piccolo, btn ridotto */
  .logo         { font-size: 22px; }
  .nav .btn     { padding: 8px 12px; font-size: 13px; }
  /* hero: cta in colonna, ogni btn a tutta larghezza */
  .hero .cta    { flex-direction: column; align-items: stretch; }
  .hero .cta .btn { text-align: center; }
  /* report: time + p su righe separate per leggibilità */
  .report li    {
    grid-template-columns: 1fr;
    gap: 3px;
  }
  .report time  { padding-top: 0; }
  /* price dl: riduci font per evitare overflow sui testi lunghi */
  .price__side dl { font-size: 14px; gap: 8px 10px; }
  /* final cta in colonna */
  .final .cta   { flex-direction: column; align-items: stretch; }
  .final .cta .btn { text-align: center; }
  /* day intro su colonna unica */
  .day__intro   { grid-template-columns: 1fr; }
}

/* --- REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
  /* disabilita smooth-scroll e animazioni browser */
  html { scroll-behavior: auto; }

  /* reveal: visibile immediatamente, nessuna transizione */
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  /* header: niente slide-in */
  header { animation: none; }

  /* micro-interazioni: disabilita tutte le transizioni decorative */
  .timeline__item,
  .list li,
  .list li::before,
  .price__card,
  .limits__box { transition: none !important; }

  /* hero: canvas non parte (vedi JS); mostra gradiente statico come fallback */
  .hero {
    background: linear-gradient(145deg, #0d2040 0%, #07101e 55%, #0a0d1a 100%);
  }

  /* rimuovi tutte le animazioni residue */
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  /* eccezione: i .reveal già coperti sopra con !important specifico,
     ma il wildcard va bene ugualmente perché è overridden da quello sopra */
}