/* ══════════════════════════════════════════════════════════════════════
   KORAL: LANDING DEL SITO 3D

   La pagina e' scura perche' la scena e' additiva: i punti si sommano a
   quello che hanno sotto, e su un fondo chiaro sparirebbero.

   Menu e footer arrivano da koral.css come su tutte le altre pagine. Per
   non duplicarli in versione scura si rimappano i token storici, che e'
   la stessa strada di ocean.css: cambia il significato di --charcoal e
   --slate, e le regole del menu seguono senza essere toccate.
   ══════════════════════════════════════════════════════════════════════ */

:root {
  --abisso:      #04121C;
  --abisso-alto: #0A2233;

  /* rimappatura per il fondo scuro */
  --charcoal:   #EAF3F7;
  --slate:      rgba(224,240,247,0.74);
  --cream:      rgba(255,255,255,0.045);
  --warm-white: rgba(255,255,255,0.035);
  --mist:       rgba(255,255,255,0.13);
  --coral-soft: rgba(255,107,90,0.15);
}

html, body { background: var(--abisso); }
body { color: var(--charcoal); }

/* koral.css nasconde .reveal in attesa di GSAP della home: qui non c'e',
   quindi il contenuto resta visibile e l'entrata la fa .rv con
   l'IntersectionObserver in fondo alla pagina. */
.reveal { opacity: 1; transform: none; }
.rv { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv, .rv.in { opacity: 1; transform: none; transition: none; }
}

/* ── Menu e footer, versione scura ─────────────────────────────────── */
.navbar { background: rgba(4,18,28,0.72); border-bottom-color: rgba(255,255,255,0.07); }
.navbar.scrolled { box-shadow: 0 6px 34px rgba(0,0,0,0.45); }
.nav-dropdown-menu { background: #0B2233; border-color: rgba(255,255,255,0.12); box-shadow: 0 18px 50px rgba(0,0,0,0.5); }
.nav-dropdown-menu a:hover { background: rgba(255,107,90,0.14) !important; color: var(--coral-glow) !important; }
.nav-promo { color: var(--coral-glow) !important; border-color: rgba(255,107,90,0.36); }
.mobile-menu { background: rgba(4,18,28,0.97); }
/* Il footer non e' posizionato, quindi la scena (fissa, z-index 0) gli
   passava sopra: il corallo finiva steso sui contatti. */
footer { background: #020B12; border-top: 1px solid rgba(255,255,255,0.06); position: relative; z-index: 1; }

/* ── La scena ──────────────────────────────────────────────────────── */
.scena-wrap {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 12%, rgba(27,107,132,0.36) 0%, transparent 62%),
    radial-gradient(90% 70% at 50% 96%, rgba(255,107,90,0.10) 0%, transparent 60%);
}
#scena3d { display: block; width: 100%; height: 100%; }

/* Senza WebGL, o con meno movimento richiesto, resta il fondo: la pagina
   non perde niente di quello che c'e' scritto. */
html[data-scena="ferma"] .scena-wrap,
html[data-scena="assente"] .scena-wrap,
html[data-scena="persa"] .scena-wrap { background: radial-gradient(110% 80% at 50% 18%, rgba(27,107,132,0.3) 0%, transparent 64%); }

.tredi-page { position: relative; z-index: 1; }

/* ── Hero ──────────────────────────────────────────────────────────── */
.tredi-hero {
  min-height: 100svh; display: flex; flex-direction: column; justify-content: center;
  padding: 150px 48px 64px; text-align: center;
}
.tredi-hero-inner { max-width: 840px; margin: 0 auto; position: relative; }
/* La nuvola passa proprio dietro al titolo, ed e' voluto: senza un velo
   pero' non si legge niente. Si scurisce solo dietro alle parole, non
   tutta la scena, altrimenti sparisce quello che la pagina deve mostrare. */
.tredi-hero-inner::before {
  content: ''; position: absolute; z-index: -1;
  left: -10%; right: -10%; top: -14%; bottom: -26%;
  background: radial-gradient(56% 56% at 50% 44%, rgba(3,13,21,0.9) 0%, rgba(3,13,21,0.66) 54%, transparent 82%);
}
.tredi-hero-inner > * { position: relative; }
.tredi-hero h1, .tredi-lede { text-shadow: 0 2px 22px rgba(2,10,17,0.9); }

/* Stesso velo per i titoli di sezione, che non stanno dentro a un pannello */
.tredi-testa { position: relative; }
.tredi-testa::before {
  content: ''; position: absolute; z-index: -1;
  left: -5%; right: -5%; top: -26px; bottom: -22px;
  background: radial-gradient(64% 74% at 34% 50%, rgba(3,13,21,0.92) 0%, rgba(3,13,21,0.62) 54%, transparent 82%);
}
.tredi-testa > * { position: relative; }
.tredi-testa h2, .tredi-testa p { text-shadow: 0 2px 18px rgba(2,10,17,0.85); }
.tredi-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px; border-radius: 50px;
  background: rgba(255,107,90,0.12); border: 1px solid rgba(255,107,90,0.3);
  color: var(--coral-glow); font-size: 12.5px; font-weight: 600; letter-spacing: 0.4px;
  margin-bottom: 26px;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.tredi-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--coral); flex: none; }
.tredi-hero h1 {
  font-family: 'Instrument Serif', serif; font-weight: 400;
  font-size: clamp(38px, 6.4vw, 74px); line-height: 1.07; letter-spacing: -0.5px;
  color: #fff; margin-bottom: 22px;
}
.tredi-hero h1 em { font-style: italic; color: var(--coral-glow); }
.tredi-lede {
  font-size: clamp(16px, 2vw, 19px); line-height: 1.75; color: var(--slate);
  max-width: 620px; margin: 0 auto 32px;
}

/* Il contatore non e' una decorazione: e' la prova, e i numeri li misura
   sito-3d.js mentre la scena gira. */
.tredi-hud {
  display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 0;
  border: 1px solid rgba(255,255,255,0.14); border-radius: 14px;
  background: rgba(255,255,255,0.04); backdrop-filter: blur(10px);
  overflow: hidden;
}
.tredi-hud div { padding: 12px 22px; border-right: 1px solid rgba(255,255,255,0.1); }
.tredi-hud div:last-child { border-right: 0; }
.tredi-hud b {
  display: block; font-family: 'Instrument Sans', sans-serif;
  font-size: 18px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums;
}
.tredi-hud span { display: block; margin-top: 3px; font-size: 11.5px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--slate); }

.tredi-scroll { margin-top: 44px; font-size: 13px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--slate); text-shadow: 0 2px 16px rgba(2,10,17,0.95); }
.tredi-scroll svg { display: block; width: 18px; height: 18px; margin: 10px auto 0; color: var(--coral); animation: trediGiu 2.2s ease-in-out infinite; }
@keyframes trediGiu { 0%,100% { transform: translateY(0); opacity: .5; } 50% { transform: translateY(7px); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .tredi-scroll svg { animation: none; } }

/* ── Sezioni ───────────────────────────────────────────────────────── */
.tredi-sec { padding: 96px 48px; }
.tredi-inner { max-width: 1000px; margin: 0 auto; }
.tredi-tag {
  font-size: 12px; letter-spacing: 2.4px; text-transform: uppercase;
  color: var(--coral); font-weight: 600; margin-bottom: 16px;
}
.tredi-sec h2 {
  font-family: 'Instrument Serif', serif; font-weight: 400;
  font-size: clamp(30px, 4.4vw, 48px); line-height: 1.14; color: #fff; margin-bottom: 20px;
}
.tredi-sec h2 em { font-style: italic; color: var(--coral-glow); }
.tredi-sec .tredi-testa > p,
.tredi-sec > .tredi-inner > p { font-size: 16.5px; line-height: 1.85; color: var(--slate); max-width: 680px; }
.tredi-sec .tredi-testa > p + p,
.tredi-sec > .tredi-inner > p + p { margin-top: 16px; }
.tredi-sec strong { color: #fff; font-weight: 600; }

.tredi-pannello {
  background: rgba(8,26,40,0.72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.1); border-radius: 22px;
  padding: 40px 44px;
}
.tredi-pannello > p { font-size: 16.5px; line-height: 1.85; color: var(--slate); max-width: 680px; }
.tredi-pannello > p + p { margin-top: 16px; }

.tredi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.tredi-card {
  padding: 26px 26px 28px; border-radius: 18px;
  background: rgba(8,26,40,0.7); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.1);
}
.tredi-card-ico { width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(255,107,90,0.14); margin-bottom: 16px; }
.tredi-card-ico svg { width: 20px; height: 20px; color: var(--coral); }
.tredi-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 9px; }
.tredi-card p { font-size: 14.5px; line-height: 1.75; color: var(--slate); }

/* Per chi si', per chi no: la colonna di destra vale quanto quella di
   sinistra, quindi ha lo stesso peso grafico. */
.tredi-due { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 34px; }
.tredi-due > div {
  padding: 30px 32px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.tredi-si { background: linear-gradient(0deg, rgba(255,107,90,0.11), rgba(255,107,90,0.11)), rgba(8,26,40,0.72); border-color: rgba(255,107,90,0.3) !important; }
.tredi-no { background: rgba(8,26,40,0.72); }
.tredi-due h3 { font-family: 'Instrument Serif', serif; font-weight: 400; font-size: 24px; color: #fff; margin-bottom: 16px; }
.tredi-due ul { list-style: none; }
.tredi-due li { position: relative; padding-left: 26px; font-size: 15px; line-height: 1.7; color: var(--slate); margin-bottom: 11px; }
.tredi-due li::before {
  content: ''; position: absolute; left: 0; top: 9px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--coral); opacity: .85;
}
.tredi-no li::before { background: rgba(255,255,255,0.28); }
.tredi-due-nota { margin-top: 18px; font-size: 14px; line-height: 1.7; color: var(--slate); }
.tredi-due-nota a { color: var(--coral-glow); font-weight: 600; text-decoration: none; }
.tredi-due-nota a:hover { text-decoration: underline; }

/* ── Prezzo ────────────────────────────────────────────────────────── */
.tredi-prezzo-testa { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
.tredi-prezzo-cifra { font-family: 'Instrument Serif', serif; font-size: clamp(44px, 7vw, 68px); line-height: 1; color: #fff; }
.tredi-prezzo-da { font-size: 15px; color: var(--slate); }
.tredi-prezzo-iva { font-size: 14px; color: var(--slate); }
.tredi-incluso { list-style: none; margin-top: 26px; }
.tredi-incluso li { position: relative; padding-left: 30px; font-size: 15.5px; line-height: 1.7; color: var(--slate); margin-bottom: 12px; }
.tredi-incluso li svg { position: absolute; left: 0; top: 4px; width: 17px; height: 17px; color: var(--coral); }
.tredi-extra { margin-top: 30px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.1); }
.tredi-extra h3 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.tredi-extra p { font-size: 14.5px; line-height: 1.8; color: var(--slate); }
.tredi-extra p + p { margin-top: 12px; }

/* ── FAQ ───────────────────────────────────────────────────────────── */
.tredi-faq {
  margin-top: 30px; border-top: 1px solid rgba(255,255,255,0.1);
  background: rgba(8,26,40,0.66); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-radius: 18px; padding: 0 24px;
}
.tredi-faq details { border-bottom: 1px solid rgba(255,255,255,0.1); }
.tredi-faq summary {
  list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative;
  font-size: 16px; font-weight: 600; color: #fff;
}
.tredi-faq summary::-webkit-details-marker { display: none; }
.tredi-faq summary::after {
  content: ''; position: absolute; right: 8px; top: 27px;
  width: 9px; height: 9px; border-right: 2px solid var(--coral); border-bottom: 2px solid var(--coral);
  transform: rotate(45deg); transition: transform .3s ease;
}
.tredi-faq details[open] summary::after { transform: rotate(-135deg); }
.tredi-faq .tredi-faq-corpo { padding: 0 0 22px; font-size: 15px; line-height: 1.8; color: var(--slate); }
.tredi-faq a { color: var(--coral-glow); font-weight: 600; text-decoration: none; }
.tredi-faq a:hover { text-decoration: underline; }

/* ── Chiusura ──────────────────────────────────────────────────────── */
.tredi-cta { padding: 110px 48px 120px; text-align: center; }
.tredi-cta .tredi-inner { position: relative; }
.tredi-cta h2, .tredi-cta p { text-shadow: 0 2px 20px rgba(2,10,17,0.9); }
.tredi-cta h2 { font-family: 'Instrument Serif', serif; font-weight: 400; font-size: clamp(32px, 5vw, 54px); line-height: 1.12; color: #fff; margin-bottom: 18px; }
.tredi-cta p { font-size: 16.5px; line-height: 1.8; color: var(--slate); max-width: 560px; margin: 0 auto 34px; }
.tredi-bottoni { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.tredi-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; border-radius: 50px; text-decoration: none;
  font-size: 15px; font-weight: 600; transition: all .3s ease;
}
.tredi-btn svg { width: 18px; height: 18px; }
.tredi-btn-wa { background: var(--coral); color: #fff; }
.tredi-btn-wa:hover { background: var(--coral-deep); transform: translateY(-2px); box-shadow: 0 12px 34px rgba(255,107,90,0.32); }
.tredi-btn-ghost { background: rgba(255,255,255,0.06); color: #fff; border: 1px solid rgba(255,255,255,0.18); }
.tredi-btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

/* ── Schermi stretti ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .tredi-grid, .tredi-due { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .tredi-hero { padding: 124px 22px 56px; }
  .tredi-sec { padding: 72px 22px; }
  .tredi-cta { padding: 84px 22px 92px; }
  .tredi-pannello { padding: 28px 22px; border-radius: 18px; }
  .tredi-hud div { padding: 11px 16px; }
  .tredi-hud b { font-size: 16px; }
  .tredi-due > div { padding: 24px 22px; }
  .tredi-btn { width: 100%; justify-content: center; }
}

/* ── La barra di avanzamento e il WhatsApp flottante ──────────────────
   Il markup e' quello della home. Qui il fondo e' scuro, quindi la barra
   prende un alone (su bianco non servirebbe) e il fumetto bianco si
   riprende un testo scuro: --charcoal, qui sopra, e' diventato chiaro. */
.scroll-progress {
  box-shadow: 0 0 14px rgba(255,107,90,0.8), 0 0 4px rgba(255,138,125,0.9);
}
.wa-bubble { color: #14212B; }
.wa-bubble-close { color: rgba(20,33,43,0.38); }
.wa-bubble-close:hover { background: rgba(20,33,43,0.08); color: #14212B; }