/* Gaia HSE — glassmorphism + sfere SVG parallax */
:root {
  --bg-deep: #050a1b;
  --bg-deep-mid: #0a1228;
  --glass-fill: rgba(255, 255, 255, 0.06);
  --glass-fill-hover: rgba(255, 255, 255, 0.1);
  --glass-fill-strong: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-bright: rgba(255, 255, 255, 0.28);
  --glass-blur: 40px;
  --glass-blur-sm: 24px;
  --glass-shadow: 0 8px 48px rgba(0, 0, 0, 0.45);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.22);
  --on-glass: #ffffff;
  --on-glass-muted: rgba(255, 255, 255, 0.97);
  --on-glass-subtle: rgba(255, 255, 255, 0.9);
  --accent: #e9d5ff;
  --text-shadow-readable: 0 1px 2px rgba(0, 0, 0, 0.65), 0 2px 12px rgba(0, 0, 0, 0.4);
  --accent-soft: rgba(99, 102, 241, 0.3);
  --glow-violet: rgba(139, 92, 246, 0.4);
  --glow-blue: rgba(59, 130, 246, 0.35);
  --radius-sm: 14px;
  --radius: 22px;
  --radius-lg: 32px;
  --radius-xl: 40px;
  --container: 1080px;
  --header-h: 56px;
  --ease-wave: cubic-bezier(0.45, 0.05, 0.55, 0.95);
  --ease-float: cubic-bezier(0.37, 0, 0.63, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.47;
  letter-spacing: -0.022em;
  color: var(--on-glass);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* —— Layer profondo + sfere SVG parallax —— */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-base {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 60% at 15% 20%, rgba(91, 33, 182, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 80% 55% at 85% 75%, rgba(29, 78, 216, 0.14) 0%, transparent 50%),
    radial-gradient(ellipse 120% 80% at 50% 0%, var(--bg-deep-mid) 0%, var(--bg-deep) 55%),
    var(--bg-deep);
}

.bg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* Parallax applicato al wrapper; drift leggero sull'inner */
.sphere {
  --parallax-y: 0px;
  position: absolute;
  z-index: 1;
  will-change: transform;
  transform: translate3d(0, var(--parallax-y), 0);
}

.sphere-inner {
  width: 100%;
  height: 100%;
  animation: sphere-drift 9s var(--ease-float) infinite;
}

.sphere-inner svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Dimensioni sfere */
.sphere--xxs { width: clamp(18px, 2.2vw, 28px); }
.sphere--xs { width: clamp(36px, 4.5vw, 56px); }
.sphere--sm { width: clamp(64px, 8vw, 96px); }
.sphere--md { width: clamp(120px, 14vw, 180px); }
.sphere--lg { width: clamp(200px, 26vw, 320px); }
.sphere--xl { width: clamp(280px, 38vw, 440px); }
.sphere--xxl { width: clamp(360px, 52vw, 620px); }

/* Posizioni ai bordi — centro libero per testo */
.sphere--1 { top: -18%; left: -22%; z-index: 0; opacity: 0.55; }
.sphere--2 { top: 6%; right: -14%; z-index: 2; opacity: 0.72; }
.sphere--3 { bottom: -20%; right: -18%; z-index: 0; opacity: 0.5; }
.sphere--4 { bottom: 8%; left: -10%; z-index: 3; opacity: 0.78; }
.sphere--5 { top: 38%; left: -16%; z-index: 1; opacity: 0.65; }
.sphere--6 { top: 52%; right: -8%; z-index: 2; opacity: 0.7; }

.sphere--1 .sphere-inner { animation-duration: 18s; animation-delay: -4s; }
.sphere--2 .sphere-inner { animation-duration: 12s; animation-delay: -2s; }
.sphere--3 .sphere-inner { animation-duration: 20s; animation-delay: -5s; }
.sphere--4 .sphere-inner { animation-duration: 10s; animation-delay: -1.5s; }
.sphere--5 .sphere-inner { animation-duration: 14s; animation-delay: -3s; }
.sphere--6 .sphere-inner { animation-duration: 11s; animation-delay: -2.5s; }

@keyframes sphere-drift {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(6px, -10px) scale(1.02);
  }
  66% {
    transform: translate(-4px, 6px) scale(0.98);
  }
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-8px) rotate(0.3deg); }
  66% { transform: translateY(-4px) rotate(-0.2deg); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes buoy-bob {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.02); }
}

@keyframes tide-glow-pulse {
  0%, 100% { box-shadow: var(--glass-shadow), var(--glass-inset), 0 0 0 transparent; }
  50% { box-shadow: var(--glass-shadow), var(--glass-inset), 0 0 60px var(--accent-soft); }
}

/* Contenuto sopra lo sfondo */
.site-top,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: max(1.25rem, env(safe-area-inset-left, 0px));
  padding-right: max(1.25rem, env(safe-area-inset-right, 0px));
}

/* —— Glass utilities (stile riferimento) —— */
.glass-bar,
.glass-panel,
.glass-panel-strong,
.glass-card,
.glass-section {
  color: var(--on-glass);
}

.glass-bar {
  background: var(--glass-fill);
  backdrop-filter: blur(var(--glass-blur-sm)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-panel,
.glass-section {
  padding: clamp(2rem, 5vw, 3rem);
  background: var(--glass-fill);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-panel-strong {
  background: var(--glass-fill-strong);
  backdrop-filter: blur(var(--glass-blur)) saturate(200%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(200%);
  border: 1px solid var(--glass-border-bright);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-card {
  background: var(--glass-fill);
  backdrop-filter: blur(var(--glass-blur-sm)) saturate(170%);
  -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(170%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-card--accent {
  border-color: var(--glass-border-bright);
  box-shadow: var(--glass-shadow), var(--glass-inset), 0 0 0 1px var(--accent-soft);
}

.glass-surface h1,
.glass-surface h2,
.glass-surface h3,
.glass-panel h1,
.glass-panel h2,
.glass-panel h3,
.glass-section h1,
.glass-section h2,
.glass-section h3,
.glass-card h3 {
  color: var(--on-glass);
  font-weight: 400;
}

.glass-surface p,
.glass-panel p,
.glass-section p,
.glass-section .section-lead,
.glass-card p {
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.float-card {
  animation: float-gentle 6s var(--ease-float) infinite;
  animation-delay: var(--float-delay, 0s);
}

.float-slow {
  animation: float-slow 7s var(--ease-float) infinite;
}

.tide-glow {
  animation: tide-glow-pulse 5s var(--ease-wave) infinite;
}

/* Header */
.site-top {
  position: sticky;
  top: 0;
  z-index: 100;
  isolation: isolate;
}

.site-header {
  height: var(--header-h);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  padding-top: env(safe-area-inset-top, 0px);
}

.site-nav-inner {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand {
  font-weight: 600;
  line-height: 1;
  color: var(--on-glass);
  text-decoration: none;
  letter-spacing: -0.04em;
}

.site-header .brand {
  display: inline-flex;
  align-items: center;
  height: var(--header-h);
  font-size: calc(var(--header-h) - 10px);
}

.footer-inner .brand {
  font-size: 1.25rem;
  line-height: 1.1;
}

.brand-mark {
  color: var(--accent);
  font-weight: 500;
}

.site-nav {
  display: block;
}

.site-nav-inner {
  justify-content: flex-end;
}

.site-nav a:not(.btn) {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #ffffff;
  text-decoration: none;
  text-shadow: var(--text-shadow-readable);
  transition: color 0.2s var(--ease-wave), text-shadow 0.2s var(--ease-wave);
}

.site-nav a:not(.btn):hover {
  color: #fff;
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.55);
}

.site-nav .btn-sm {
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.35);
}

.site-nav .btn-sm:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.5);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--on-glass);
  border-radius: 1px;
  transition: transform 0.2s var(--ease-wave);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Buttons — vetro */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--on-glass);
  text-decoration: none;
  background: var(--glass-fill);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: 980px;
  box-shadow: var(--glass-inset);
  cursor: pointer;
  transition: transform 0.2s var(--ease-wave), background 0.25s, border-color 0.25s;
}

.btn:hover {
  background: var(--glass-fill-hover);
  border-color: var(--glass-border-bright);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn.primary {
  color: var(--bg-deep);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 32px var(--glow-violet), var(--glass-inset);
}

.btn.primary:hover {
  background: #fff;
  box-shadow: 0 12px 40px var(--glow-blue), 0 8px 24px var(--glow-violet), var(--glass-inset);
}

.btn.ghost {
  background: transparent;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.8125rem;
}

/* Typography */
.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: var(--text-shadow-readable);
}

.section-lead {
  max-width: 52ch;
  margin: 0 0 2.5rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

h1, h2, h3 {
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.03em;
  color: var(--on-glass);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.08;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  line-height: 1.15;
  margin-bottom: 1rem;
  text-wrap: balance;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

/* Hero — registro HUD (allineato a Sparks) */
.hero--hud {
  padding: clamp(3rem, 9vh, 5.5rem) 0 clamp(2rem, 5vh, 3rem);
  text-align: center;
  overflow: hidden;
}

.hero-hud {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}

.hero-hud-watermark {
  position: absolute;
  left: 50%;
  top: 42%;
  z-index: 0;
  margin: 0;
  transform: translate(-50%, -50%);
  font-size: clamp(3.5rem, 16vw, 6.5rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-indent: 0.18em;
  color: rgba(255, 255, 255, 0.05);
  filter: blur(6px);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.hero-hud-stage {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-hud-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.hero--hud h1 {
  margin-bottom: 1rem;
  font-weight: 500;
  text-shadow: var(--text-shadow-readable), 0 0 48px rgba(0, 0, 0, 0.5);
}

.hero .lead {
  margin: 0 auto 1rem;
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.hero-sparks-line {
  margin: 0 auto 1.75rem;
  max-width: 34rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--on-glass-muted);
  text-shadow: var(--text-shadow-readable);
}

.hero-sparks-line strong {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-shadow: var(--text-shadow-readable), 0 0 24px var(--glow-violet);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 0;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: center;
  margin: 0;
  padding: 0.75rem 1.25rem;
  list-style: none;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
  background: var(--glass-fill);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 980px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-inset);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.hero-trust li::before {
  content: "·";
  margin-right: 0.5rem;
  color: var(--on-glass-subtle);
}

.hero-trust li:first-child::before {
  content: none;
  margin: 0;
}

/* Sections */
.section {
  padding: clamp(3rem, 7vh, 5rem) 0;
}

.section + .section {
  border-top: none;
}

/* Titoli direttamente sullo sfondo (come nel riferimento) */
.section > .container > .eyebrow,
.section > .container > h2,
.section > .container > .section-lead {
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 4px 24px rgba(0, 0, 0, 0.45);
}

.contact-copy .eyebrow,
.contact-copy h2,
.contact-copy p {
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
}

/* Cards */
.grid {
  display: grid;
  gap: 1.25rem;
}

.grid > *,
.ai-panel > *,
.contact-inner > * {
  min-width: 0;
}

.pain-grid,
.target-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.feature-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.steps-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.step-card {
  position: relative;
  list-style: none;
}

.step-num {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.tier-desc {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.pricing-lead {
  margin-bottom: 2rem;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 0.75rem;
  max-width: 720px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  padding: 1.1rem 1.25rem;
  font-weight: 500;
  color: var(--on-glass);
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--on-glass);
  transition: transform 0.2s var(--ease-wave);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin: 0;
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--on-glass);
  line-height: 1.55;
  text-shadow: var(--text-shadow-readable);
}

.card {
  padding: 1.5rem;
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease-wave), box-shadow 0.35s;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--glass-fill-hover);
  border-color: var(--glass-border-bright);
  box-shadow: var(--glass-shadow), var(--glass-inset), 0 16px 48px rgba(0, 0, 0, 0.2);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.card-icon {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 1.35rem;
}

.card-icon--hud {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 0.85rem;
  color: rgba(196, 181, 253, 0.95);
  background:
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) left top / 9px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) left top / 1px 9px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) right top / 9px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) right top / 1px 9px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) left bottom / 9px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) left bottom / 1px 9px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) right bottom / 9px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)) right bottom / 1px 9px no-repeat;
}

.card-icon--hud svg {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
}

/* CTA intermedia */
.cta-band {
  padding: 0 0 clamp(2rem, 4vh, 3rem);
}

.cta-band-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  padding: 1.25rem 1.75rem;
  text-align: left;
}

.cta-band-text {
  margin: 0;
  flex: 1 1 16rem;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.ai-panel--hud {
  padding: clamp(2rem, 5vw, 3rem);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Sparks — nome prodotto in evidenza */
.sparks-brand {
  margin: 0 0 1rem;
  font-size: clamp(3rem, 10vw, 4.75rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable), 0 0 60px var(--accent-soft);
}

.ai-copy .sparks-brand + h2 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
  margin-bottom: 1.25rem;
}

/* AI panel */
.ai-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: clamp(2rem, 5vw, 3rem);
}

.ai-copy p {
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.ai-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.ai-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.ai-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 14px var(--accent-soft);
  animation: buoy-bob 3s var(--ease-float) infinite;
}

.ai-list li:nth-child(2)::before { animation-delay: 0.5s; }
.ai-list li:nth-child(3)::before { animation-delay: 1s; }
.ai-list li:nth-child(4)::before { animation-delay: 1.5s; }

.ai-panel--hud .ai-visual {
  align-self: stretch;
}

.ai-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  width: 100%;
  overflow: visible;
}

/* Sparks — HUD sci-fi (riferimento VORMIR-style) */
.sparks-hud {
  position: relative;
  width: min(100%, 420px);
  aspect-ratio: 1 / 1.05;
  min-height: 320px;
  margin: 0 auto;
  flex-shrink: 0;
  overflow: visible;
  background: radial-gradient(
    ellipse 72% 68% at 50% 46%,
    rgba(0, 0, 0, 0.92) 0%,
    rgba(5, 10, 27, 0.55) 52%,
    transparent 76%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 94% 90% at 50% 48%,
    #000 58%,
    rgba(0, 0, 0, 0.85) 72%,
    rgba(0, 0, 0, 0.35) 86%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse 94% 90% at 50% 48%,
    #000 58%,
    rgba(0, 0, 0, 0.85) 72%,
    rgba(0, 0, 0, 0.35) 86%,
    transparent 100%
  );
  filter: drop-shadow(0 0 56px rgba(124, 58, 237, 0.18));
}

.sparks-hud-smoke {
  position: absolute;
  inset: -20%;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%, rgba(88, 28, 135, 0.35) 0%, transparent 58%),
    radial-gradient(ellipse 90% 70% at 30% 80%, rgba(30, 10, 50, 0.5) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 75% 25%, rgba(59, 7, 100, 0.25) 0%, transparent 45%);
  filter: blur(28px);
  pointer-events: none;
}

.sparks-hud-watermark {
  position: absolute;
  left: 50%;
  top: 46%;
  z-index: 1;
  margin: 0;
  transform: translate(-50%, -50%);
  font-size: clamp(3.25rem, 14vw, 4.75rem);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: rgba(255, 255, 255, 0.07);
  filter: blur(5px);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.sparks-hud-orb-wrap {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: 76%;
  aspect-ratio: 1;
  transform: translate(-50%, -48%);
  pointer-events: none;
}

.sparks-hud-orb {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: url("../assets/sparks-sphere.png") center / cover no-repeat;
  filter: saturate(1.15) contrast(1.05);
  animation: sparks-orb-float 14s var(--ease-float) infinite alternate;
}

.sparks-hud-orb-glow {
  position: absolute;
  inset: -18%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(147, 51, 234, 0.45) 0%, transparent 68%);
  filter: blur(18px);
  animation: sparks-glow-pulse 5s var(--ease-float) infinite alternate;
}

@keyframes sparks-orb-float {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-2%) scale(1.02); }
}

@keyframes sparks-glow-pulse {
  0% { opacity: 0.65; transform: scale(0.98); }
  100% { opacity: 1; transform: scale(1.05); }
}

.sparks-hud-lines {
  position: absolute;
  inset: 0;
  z-index: 3;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.sparks-hud-labels {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.sparks-hud-node {
  --hud-bracket: rgba(255, 255, 255, 0.42);
  position: absolute;
  padding: 0.5rem 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.sparks-hud-node::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left top / 11px 1px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left top / 1px 11px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right top / 11px 1px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right top / 1px 11px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left bottom / 11px 1px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) left bottom / 1px 11px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right bottom / 11px 1px no-repeat,
    linear-gradient(var(--hud-bracket), var(--hud-bracket)) right bottom / 1px 11px no-repeat;
}

.sparks-hud-text {
  display: block;
  font-size: 0.5625rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
  white-space: nowrap;
}

.sparks-hud-node[data-hud="gen"] {
  top: 10%;
  left: 2%;
}

.sparks-hud-node[data-hud="class"] {
  top: 14%;
  right: 0;
}

.sparks-hud-node[data-hud="alert"] {
  bottom: 16%;
  left: 4%;
}

.sparks-hud-vignette {
  position: absolute;
  inset: -8%;
  z-index: 4;
  pointer-events: none;
  background:
    radial-gradient(ellipse 78% 72% at 50% 48%, transparent 42%, rgba(5, 10, 27, 0.5) 88%, transparent 100%),
    radial-gradient(ellipse 100% 100% at 50% 50%, transparent 52%, rgba(0, 0, 0, 0.35) 100%);
}

.sparks-hud-scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  z-index: 6;
  background: linear-gradient(90deg, transparent, rgba(196, 181, 253, 0.35), transparent);
  opacity: 0.5;
  animation: hud-scan 6s linear infinite;
  pointer-events: none;
}

@keyframes hud-scan {
  0% { top: 8%; opacity: 0; }
  8% { opacity: 0.45; }
  92% { opacity: 0.35; }
  100% { top: 92%; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .sparks-hud-scan,
  .sparks-hud-orb,
  .sparks-hud-orb-glow {
    animation: none;
  }

  .sparks-hud-scan {
    display: none;
  }
}

/* Pricing */
.pricing-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: stretch;
}

.tier {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.tier ul {
  flex: 1;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  text-align: left;
}

.tier li {
  padding: 0.45rem 0;
  font-size: 0.9375rem;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
  border-bottom: 1px solid var(--glass-border);
}

.tier li:last-child {
  border-bottom: 0;
}

.tier .btn {
  width: 100%;
}

.price {
  margin: 0.5rem 0 1.25rem;
}

.price .amount {
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--on-glass);
}

.price .period {
  font-size: 0.875rem;
  color: var(--on-glass);
}

.badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 980px;
  box-shadow: var(--glass-shadow);
}

/* About */
.about-inner {
  max-width: 560px;
}

.about-tagline {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.about-inner > p:last-child {
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

/* Contact */
.contact-inner {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.contact-copy p {
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
}

.contact-form label span {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.75rem 1rem;
  font: inherit;
  font-size: 1rem;
  color: var(--on-glass);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}

.contact-form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath stroke='%23ffffff99' stroke-width='1.5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.contact-form select option {
  color: var(--bg-deep);
  background: #fff;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--on-glass-muted);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--glass-border-bright);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background: rgba(255, 255, 255, 0.14);
}

.form-privacy {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin: 0.25rem 0 0.5rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--on-glass);
  text-shadow: var(--text-shadow-readable);
  cursor: pointer;
}

.form-privacy input {
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.form-privacy a {
  color: var(--on-glass);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-status {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.9375rem;
  line-height: 1.45;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border-bright);
}

.form-status[hidden] {
  display: none !important;
}

.form-status--success {
  color: #d1fae5;
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(52, 211, 153, 0.35);
}

.form-status--error {
  color: #fecaca;
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(248, 113, 113, 0.35);
}

.privacy-footer {
  max-width: 52rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  padding-bottom: 0.5rem;
  border-top: 1px solid var(--glass-border);
}

.privacy-footer-title {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-glass);
}

.privacy-footer p {
  margin: 0 0 0.65rem;
  font-size: 0.6875rem;
  line-height: 1.5;
  color: var(--on-glass-muted);
}

.privacy-footer p:last-child {
  margin-bottom: 0;
}

.privacy-footer a {
  color: var(--on-glass);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

/* Footer */
.site-footer {
  padding: 2rem 0 1.25rem;
  margin-top: 1rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-nav a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--on-glass);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--on-glass);
}

.footer-inner p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--on-glass);
}

/* Scroll reveal (JS) */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-wave), transform 0.7s var(--ease-wave);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .sphere-inner {
    animation: none;
  }

  .sphere {
    transform: none !important;
  }


  .float-card,
  .float-slow {
    animation: none;
  }

  .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }
}

/* —— Responsive (tutti i form factor) —— */

/* Desktop largo */
@media (min-width: 1280px) {
  :root {
    --container: 1140px;
  }

  .ai-visual {
    min-height: 420px;
  }

  .sparks-hud {
    width: min(100%, 440px);
  }
}

/* Tablet landscape / desktop medio — layout a due colonne */
@media (min-width: 900px) {
  .ai-panel {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .contact-inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 3rem;
  }
}

/* Tablet portrait */
@media (min-width: 721px) and (max-width: 899px) {
  .section-lead {
    max-width: 38rem;
  }

  .sparks-hud {
    width: min(100%, 360px);
    min-height: 300px;
  }

  .ai-visual {
    min-height: 340px;
  }

  .pain-grid,
  .feature-grid,
  .steps-grid,
  .target-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Desktop — nav affiancata al brand nella barra sticky */
@media (min-width: 901px) {
  .site-nav {
    position: absolute;
    top: env(safe-area-inset-top, 0px);
    left: 0;
    right: 0;
    height: var(--header-h);
    pointer-events: none;
    z-index: 2;
  }

  .site-nav-inner {
    display: flex;
    height: 100%;
    align-items: center;
    justify-content: flex-end;
    gap: 1.75rem;
    pointer-events: auto;
  }
}

/* Nav compatto — tablet e mobile */
@media (max-width: 900px) {
  .site-header {
    height: auto;
    min-height: var(--header-h);
  }

  .site-header.glass-bar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(5, 10, 27, 0.96);
  }

  .header-inner {
    flex-wrap: nowrap;
    align-items: center;
    height: auto;
    min-height: var(--header-h);
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
    flex-shrink: 0;
  }

  .site-header .brand {
    flex: 1 1 auto;
    min-width: 0;
    height: var(--header-h);
  }

  .site-nav {
    display: none;
  }

  .site-nav.is-open {
    display: block;
    position: fixed;
    z-index: 105;
    top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    margin: 0;
    min-height: calc(100dvh - var(--header-h) - env(safe-area-inset-top, 0px));
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0;
    background: rgba(5, 10, 27, 0.98);
    box-shadow: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-width: none;
    padding-top: 0.75rem;
    padding-bottom: 1.25rem;
  }

  .site-nav a:not(.btn) {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--on-glass);
    text-shadow: none;
  }

  .site-nav .btn {
    margin-top: 1rem;
    min-height: 48px;
    justify-content: center;
    text-align: center;
    width: 100%;
  }

  body.nav-open {
    overflow: hidden;
  }

  body.nav-open .site-top {
    z-index: 110;
  }

  body.nav-open .site-header.glass-bar {
    background: rgba(5, 10, 27, 0.98);
  }
}

/* Mobile e narrow */
@media (max-width: 720px) {
  :root {
    --header-h: 52px;
  }

  body {
    font-size: 16px;
  }

  .container {
    padding-left: max(1rem, env(safe-area-inset-left, 0px));
    padding-right: max(1rem, env(safe-area-inset-right, 0px));
  }

  .site-header .brand {
    font-size: 1.125rem;
    height: auto;
  }

  .section {
    padding: clamp(2.25rem, 6vh, 3.5rem) 0;
  }

  .section-lead {
    font-size: 1rem;
  }

  .hero--hud {
    padding-top: clamp(2rem, 7vh, 3rem);
  }

  .hero-hud-watermark {
    font-size: clamp(2.5rem, 18vw, 4rem);
    letter-spacing: 0.14em;
    text-indent: 0.14em;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-band-inner {
    flex-direction: column;
    text-align: center;
    justify-content: center;
    padding: 1.1rem 1.25rem;
  }

  .cta-band-text {
    text-align: center;
    font-size: 1rem;
  }

  .ai-panel {
    padding: 1.5rem;
    gap: 1.75rem;
  }

  .ai-visual {
    min-height: 0;
  }

  .sparks-brand {
    font-size: clamp(2.25rem, 14vw, 3.25rem);
  }

  .ai-copy .sparks-brand + h2 {
    font-size: 1.125rem;
  }

  .pain-grid,
  .feature-grid,
  .steps-grid,
  .target-grid {
    grid-template-columns: 1fr;
  }

  .faq-item summary {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 1rem 1.1rem;
  }

  .contact-form input,
  .contact-form select,
  .contact-form textarea {
    font-size: 16px;
  }

  .contact-form .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-nav {
    order: 2;
    gap: 1rem;
  }

  .site-footer {
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
  }

  .card:hover {
    transform: none;
  }
}

/* Smartphone piccoli */
@media (max-width: 480px) {
  .hero-hud-watermark {
    font-size: clamp(2rem, 16vw, 3.25rem);
    letter-spacing: 0.1em;
    text-indent: 0.1em;
  }

  .hero-sparks-line {
    font-size: 0.875rem;
  }

  .sparks-hud {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 100%;
    aspect-ratio: auto;
    min-height: 0;
    padding: 1rem 0 0.5rem;
  }

  .sparks-hud-watermark {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    margin: 0 0 0.5rem;
    font-size: clamp(2rem, 14vw, 2.75rem);
  }

  .sparks-hud-orb-wrap {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    width: min(200px, 72vw);
    margin: 0 auto;
  }

  .sparks-hud-lines {
    display: none;
  }

  .sparks-hud-labels {
    position: static;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 0.25rem 0;
  }

  .sparks-hud-node {
    position: static;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    padding: 0.4rem 0.55rem;
  }

  .sparks-hud-text {
    font-size: 0.5rem;
    letter-spacing: 0.12em;
  }

  .glass-panel,
  .glass-panel-strong,
  .glass-card {
    border-radius: var(--radius);
  }

  .about-inner,
  .privacy-footer {
    padding: 1.25rem;
  }
}

/* Smartphone molto piccoli */
@media (max-width: 380px) {
  .sparks-hud-orb-wrap {
    width: min(180px, 78vw);
  }

  .form-privacy span {
    font-size: 0.75rem;
  }
}

/* Landscape su mobile / tablet stretta */
@media (max-height: 520px) and (orientation: landscape) and (max-width: 900px) {
  .hero--hud {
    padding-top: 1.25rem;
    padding-bottom: 1rem;
  }

  .hero-hud-watermark {
    display: none;
  }

  .hero-hud-stage {
    gap: 0.35rem;
  }

  .section {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
}