/* ============================================================
   SADS — Structured Digital Asset Services
   style.css
   ============================================================ */

/* --- Variables --- */
:root {
  --black:      #0a0a0a;
  --dark:       #111111;
  --card:       #161616;
  --border:     rgba(255,255,255,0.08);
  --gold:       #c9a84c;
  --gold-light: #e8c97a;
  --white:      #f5f3ee;
  --muted:      rgba(245,243,238,0.45);
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-mono:  'DM Mono', 'Courier New', monospace;
  --radius:     2px;
  --max-w:      1140px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button, select, input, textarea { font-family: inherit; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Typography --- */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 2rem;
}
.section-title em {
  font-style: italic;
  color: var(--gold-light);
}

/* --- Reveal Animations --- */
.reveal, .reveal-stagger {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible, .reveal-stagger.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger:nth-child(5) { transition-delay: 0.4s; }
.reveal-stagger:nth-child(6) { transition-delay: 0.5s; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.2rem 0;
  transition: background var(--transition), backdrop-filter var(--transition);
}
.nav.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--gold);
}
.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  color: var(--gold) !important;
  border: 1px solid var(--gold);
  padding: 0.4rem 1.1rem;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: var(--gold) !important; color: var(--black) !important; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
.lang-switch {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.3rem 0.65rem;
  transition: color var(--transition), border-color var(--transition);
}
.lang-switch:hover {
  color: var(--gold);
  border-color: var(--gold);
}
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:first-child { transform: translateY(6px) rotate(45deg); }
.burger.open span:last-child  { transform: translateY(-6px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 2rem 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 20%, rgba(201,168,76,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(201,168,76,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.hero-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3.2rem, 8vw, 7.5rem);
  font-weight: 300;
  line-height: 1.0;
  margin-bottom: 2rem;
  color: var(--white);
}
.hero-title em {
  font-style: italic;
  color: var(--gold-light);
}
.hero-sub {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
}
.badge {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(201,168,76,0.3);
  padding: 0.3rem 0.8rem;
}

/* Ticker */
.hero-ticker {
  position: absolute;
  bottom: 2.5rem;
  left: 0; right: 0;
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.ticker-track {
  display: flex;
  gap: 2rem;
  white-space: nowrap;
  animation: ticker 30s linear infinite;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}
.ticker-track .sep { color: var(--gold); opacity: 0.4; }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--gold);
  padding: 0.85rem 2.5rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

/* ============================================================
   PROBLEMA
   ============================================================ */
.problema {
  padding: 7rem 0;
  background: var(--dark);
}
.section-intro {
  max-width: 680px;
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 4rem;
  line-height: 1.85;
}
.problema-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}
.problema-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 2.2rem;
  position: relative;
}
.card-num {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.problema-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 0.8rem;
  color: var(--white);
}
.problema-card p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.8;
}
.soluzione-block {
  border-left: 2px solid var(--gold);
  padding-left: 2.5rem;
}
.soluzione-inner h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 0.8rem;
  color: var(--gold-light);
}
.soluzione-inner p {
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.85;
}

/* ============================================================
   LIVELLI
   ============================================================ */
.livelli {
  padding: 7rem 0;
  background: var(--black);
}
.livelli-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 3rem;
}
.livello-card {
  background: var(--card);
  padding: 2.2rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  position: relative;
  transition: background var(--transition);
}
.livello-card:hover { background: #1c1c1c; }
.livello-card.highlight {
  background: rgba(201,168,76,0.06);
  border-top: 2px solid var(--gold);
}
.livello-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.livello-num {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.livello-tag {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
}
.livello-fee {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--white);
  line-height: 1;
}
.livello-fee span {
  font-size: 1.5rem;
  color: var(--gold);
}
.livello-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--white);
  margin-top: 0.3rem;
}
.livello-service {
  font-size: 0.72rem;
  color: var(--gold);
  line-height: 1.5;
  letter-spacing: 0.02em;
}
.livello-specs {
  margin: 0.8rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.spec {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.72rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}
.spec-label { color: var(--muted); }
.spec-val { color: var(--white); text-align: right; }
.kyc-req { color: #e8856a; }
.kyc-no  { color: #7fc99a; }
.livello-desc {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.7;
  margin-top: auto;
}

/* ============================================================
   PROCESSO
   ============================================================ */
.processo {
  padding: 7rem 0;
  background: var(--dark);
}
.steps {
  margin: 3.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.6rem 0;
}
.step-line {
  height: 1px;
  background: var(--border);
  margin-left: 60px;
}
.step-num {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  padding-top: 0.15rem;
}
.step-body h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.4rem;
  color: var(--white);
}
.step-body p {
  font-size: 0.82rem;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.8;
}
.capacita-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 2rem;
}
.capacita-item {
  background: var(--card);
  padding: 2rem;
  text-align: center;
}
.cap-value {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--gold-light);
  margin-bottom: 0.4rem;
}
.cap-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ============================================================
   CONFORMITA
   ============================================================ */
.conformita {
  padding: 7rem 0;
  background: var(--black);
}
.conformita-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 3rem 0;
}
.conf-item {
  border: 1px solid var(--border);
  padding: 2.5rem;
  background: var(--card);
}
.conf-icon {
  font-size: 0.7rem;
  color: var(--gold);
  margin-bottom: 1rem;
}
.conf-item h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 0.7rem;
  color: var(--white);
}
.conf-item p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.85;
}
.disclaimer {
  border: 1px solid rgba(201,168,76,0.2);
  padding: 1.8rem 2rem;
  background: rgba(201,168,76,0.03);
}
.disclaimer p {
  font-size: 0.73rem;
  color: var(--muted);
  line-height: 1.85;
}

/* ============================================================
   CONTATTO — Telegram CTA
   ============================================================ */
.contatto {
  padding: 7rem 0;
  background: var(--dark);
  border-top: 1px solid var(--border);
}
.contatto-sub {
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 3rem;
  line-height: 1.8;
}
.tg-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}
.btn-tg {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--gold);
  padding: 1rem 2.2rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}
.btn-tg:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}
.tg-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.tg-note {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: var(--black);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--gold);
}
.footer-copy {
  font-size: 0.68rem;
  color: var(--muted);
}
.footer-tags {
  display: flex;
  gap: 0.8rem;
}
.footer-tags span {
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.2rem 0.6rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .livelli-grid { grid-template-columns: repeat(2, 1fr); }
  .problema-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,10,0.97);
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    z-index: 99;
  }
  .nav-links.open a { font-size: 1rem; }
  .livelli-grid { grid-template-columns: 1fr; }
  .problema-grid { grid-template-columns: 1fr; }
  .conformita-grid { grid-template-columns: 1fr; }
  .capacita-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(2.6rem, 12vw, 4.5rem); }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .step { grid-template-columns: 40px 1fr; gap: 1rem; }
  .step-line { margin-left: 40px; }
}