:root {
  --bg: #f7f7f8;
  --bg-soft: #ffffff;
  --panel: #ffffff;
  --text: #1f1f22;
  --muted: #5c5f66;
  --line: rgba(0, 0, 0, 0.12);
  --accent: #ee7d16;
  --accent-2: #ff8c00;
  --space-1: clamp(12px, 2vw, 18px);
  --space-2: clamp(18px, 3vw, 26px);
  --space-3: clamp(26px, 4vw, 42px);
}

* { box-sizing: border-box; }

a { color: var(--accent); }

body {
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(238, 125, 22, 0.14) 0%, transparent 44%),
    radial-gradient(circle at 90% 80%, rgba(255, 140, 0, 0.1) 0%, transparent 36%),
    linear-gradient(180deg, #fafafa 0%, #f2f3f5 100%);
  line-height: 1.6;
}

h1, h2, h3 { font-family: Outfit, sans-serif; margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -0.02em; }

html, body {
  cursor: default;
  margin: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}
html { scroll-behavior: smooth; }

main { padding: 28px clamp(16px, 4vw, 54px) 72px; }
main > * + * { margin-top: var(--space-3); }

.acc-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}
.acc-item button {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: #111;
  font: 700 1rem Outfit, sans-serif;
  padding: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.acc-item button::after {
  content: "▾";
  color: var(--accent);
  font-size: 1rem;
  line-height: 1;
  transition: transform .2s ease;
}
.acc-item div {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.acc-item.open button::after {
  transform: rotate(180deg);
}
.acc-item.open div { max-height: 220px; }
.acc-item p { margin: 0; padding: 0 14px 14px; color: var(--muted); }

.accordion-list { display: grid; gap: 12px; }

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

.back-to-top {
  position: fixed;
  right: 14px;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 14px);
  width: 42px;
  height: 42px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 999px;
  background: #ee7d16;
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(4px);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .22s ease, transform .22s ease;
  z-index: 46;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.brand {
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0;
}
.brand img {
  margin-top: auto;
  height: 50%;
  width: auto;
  display: block;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  border-radius: 12px;
  padding: 11px 18px;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff;
}
.btn-ghost {
  color: #111;
  border-color: var(--line);
  background: rgba(255, 255, 255, .9);
}

.card-light {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #fcfcfd);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
  --rx: 0deg;
  --ry: 0deg;
  --tz: 0px;
  transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--tz));
  transform-style: preserve-3d;
  transition: transform .2s ease, box-shadow .25s ease;
}

.carousel {
  max-width: 1100px;
  margin: 28px auto 30px;
  position: relative;
  border-radius: 20px;
  overflow: visible;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}
.carousel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.12));
  pointer-events: none;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.88);
  background: rgba(238, 125, 22, 0.92);
  color: #fff;
  cursor: pointer;
}
.carousel-btn.prev { left: 14px; }
.carousel-btn.next { right: 14px; }

.carousel-dots {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 12px;
  display: flex;
  gap: 7px;
}
.carousel-dots button {
  width: 9px;
  height: 9px;
  border: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.28);
  cursor: pointer;
}
.carousel-dots button.active { background: var(--accent); }

.carousel-track {
  position: relative;
  background: #f4f4f4;
}

.contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.cta-panel {
  max-width: 1100px;
  margin: 26px auto 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  background: linear-gradient(130deg, rgba(238, 125, 22, .14), rgba(255, 255, 255, .9));
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.detail-item h2 {
  margin-bottom: 10px;
  color: #1d2128;
}
.detail-item p { margin: 0; color: #4d5158; }
.detail-item p + p { margin-top: 10px; }

.detail-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.detail-nav a {
  text-decoration: none;
  color: #333;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(238, 125, 22, 0.12);
}
.detail-nav a:hover { background: rgba(238, 125, 22, 0.2); }

.download-btn {
  display: block;
  text-align: center;
  text-decoration: none;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border-radius: 12px;
  padding: 12px;
}

.download-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.feature-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature-list,
.contact-grid,
.download-grid {
  display: grid;
  gap: 14px;
}

.has-mega { position: relative; }
.has-mega.open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.has-mega.open .mega-toggle,
.mega-toggle:hover {
  color: #111;
  background: rgba(238, 125, 22, 0.18);
}
.has-mega.open .mega-toggle::after,
.has-mega:hover .mega-toggle::after {
  transform: rotate(180deg) translateY(1px);
}
.has-mega:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.hero {
  max-width: 980px;
  margin: 18px auto 24px;
  text-align: left;
  border: 1px solid rgba(238, 125, 22, 0.25);
  border-radius: 18px;
  padding: clamp(18px, 3vw, 28px);
  background: linear-gradient(145deg, #fffdfa, #ffffff);
  box-shadow: 0 18px 32px rgba(238, 125, 22, 0.12);
}

.hero-grid {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: var(--space-2);
  align-items: stretch;
}

.hero-side {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  background: linear-gradient(180deg, #fff, #f9f9fb);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
  height: fit-content;
}
.hero-side::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(238, 125, 22, 0.15), transparent 40%);
  pointer-events: none;
}
.hero-side ul { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }

.info-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 16px;
}
.info-card h3,
.info-card h4 { margin: 0 0 8px; }
.info-card p { margin: 0; color: var(--muted); }

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.kicker {
  text-transform: uppercase;
  color: var(--accent-2);
  letter-spacing: .1em;
  font-size: 1rem;
  font-weight: 800;
}

.lead { color: var(--muted); max-width: 74ch; }

.link-arrow {
  color: #111;
  text-decoration: none;
  font-weight: 700;
}
.link-arrow::after { content: " →"; }

.main-nav { display: flex; gap: 8px; align-items: center; }
.main-nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  font-size: .92rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  padding: 8px 11px;
  border-radius: 10px;
  transition: .22s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: #111;
  background: rgba(238, 125, 22, 0.18);
}

.map-wrap { margin-top: 16px; }
.map-wrap iframe {
  width: 100%;
  min-height: 330px;
  border: 0;
  border-radius: 12px;
}

.mega-col {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid rgba(238, 125, 22, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.78);
}

.mega-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: -40px;
  min-width: 640px;
  display: block;
  padding: 18px;
  border: 1px solid rgba(238, 125, 22, 0.24);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 239, 0.98)),
    radial-gradient(circle at 10% 0%, rgba(238, 125, 22, 0.16), transparent 48%);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: .2s ease;
  z-index: 50;
}
.mega-menu a {
  display: block;
  padding: 9px 10px;
  border-radius: 10px;
  text-decoration: none;
  color: #363a42;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  border-left: 2px solid transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.mega-menu a:hover {
  background: rgba(238, 125, 22, 0.14);
  color: #111;
  border-left-color: var(--accent);
  transform: translateX(3px);
}

.mega-panel {
  display: none;
  gap: 12px;
}
.mega-panel.active {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.mega-panel[data-panel="reti"],
.mega-panel[data-panel="voip"],
.mega-panel[data-panel="assistenza"] {
  grid-template-columns: minmax(0, 1fr);
}

.mega-tab {
  border: 1px solid rgba(238, 125, 22, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: #3a3f48;
  font: 700 .78rem Outfit, sans-serif;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: 7px 12px;
  cursor: pointer;
  transition: .2s ease;
}
.mega-tab:hover {
  border-color: rgba(238, 125, 22, 0.5);
  background: rgba(238, 125, 22, 0.12);
  color: #1e232b;
}
.mega-tab.active {
  border-color: transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 8px 18px rgba(238, 125, 22, 0.28);
}

.mega-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.mega-title {
  color: #1d2026;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 800;
  margin: 0 0 6px;
  padding-bottom: 6px;
  border-bottom: 1px dashed rgba(238, 125, 22, 0.35);
}

.mega-toggle {
  border: 0;
  font: inherit;
  color: var(--accent);
  background: transparent;
  font-weight: 700;
  font-size: .92rem;
  letter-spacing: .03em;
  text-transform: uppercase;
  padding: 8px 11px;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.mega-toggle::after {
  content: "▾";
  font-size: .78rem;
  line-height: 1;
  transform: translateY(-1px);
  transition: transform .18s ease;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
}

.mobile-dock {
  position: fixed;
  left: 18px;
  right: 18px;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 6px);
  display: none;
  grid-template-columns: repeat(2, minmax(116px, 146px));
  justify-content: center;
  gap: 8px;
  z-index: 45;
}
.mobile-dock a {
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  font-size: .84rem;
  border-radius: 12px;
  padding: 8px 10px;
  letter-spacing: .02em;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(4px);
}
.mobile-dock .dock-call {
  color: #fff;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 88%, #111), color-mix(in srgb, var(--accent-2) 84%, #111));
}
.mobile-dock .dock-chat {
  color: #111;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background: rgba(255, 255, 255, 0.92);
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .04;
  background-image: radial-gradient(rgba(255, 255, 255, .32) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
  z-index: -1;
}

.page { max-width: 1100px; margin: 20px auto; }
.page > * + * { margin-top: var(--space-2); }

.partner-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 88px;
  text-decoration: none;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.partner-card img {
  max-width: 100%;
  max-height: 45%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.partner-card img.partner-grandstream {
  max-height: 52px;
}
.partner-card img.partner-safire {
  max-height: 72px;
}
.partner-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.partners {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: reveal .7s ease forwards;
}

.service-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #fcfcfd);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
  --rx: 0deg;
  --ry: 0deg;
  --tz: 0px;
  transform: perspective(900px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--tz));
  transform-style: preserve-3d;
  transition: transform .2s ease, box-shadow .25s ease;
}

.service-icon {
  margin: 16px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: #2b3037;
  font-size: .92rem;
  font-weight: 700;
  width: fit-content;
}
.service-icon i {
  color: var(--accent);
  font-size: 2rem;
}
.service-icon img {
  width: clamp(112px, 14vw, 148px);
  height: clamp(66px, 8vw, 84px);
  object-fit: contain;
  border-radius: 8px;
  display: block;
}
.service-icon img.icon-reti-voip {
  width: clamp(148px, 18vw, 196px);
  height: clamp(80px, 10vw, 108px);
}

.services-expand-wrap {
  display: flex;
  justify-content: center;
  margin: 6px 0 22px;
}

.services-expand-toggle {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 3px solid #ee7d16;
  color: #ee7d16;
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(238, 125, 22, 0.18);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.services-expand-toggle:hover {
  transform: translateY(-2px);
  background-color: #fff6ee;
  box-shadow: 0 10px 24px rgba(238, 125, 22, 0.24);
}

.services-expand-toggle i {
  font-size: 20px;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.services-expand-toggle[aria-expanded="true"] i {
  transform: rotate(180deg);
}

.services-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.services-grid-extra {
  margin-top: 0;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-14px);
  transition: max-height 1.1s cubic-bezier(0.25, 0.9, 0.3, 1), opacity 0.85s cubic-bezier(0.25, 0.9, 0.3, 1), transform 0.95s cubic-bezier(0.25, 0.9, 0.3, 1), margin 0.9s cubic-bezier(0.25, 0.9, 0.3, 1);
  pointer-events: none;
  will-change: max-height, opacity, transform;
}

.services-grid-extra .service-card {
  opacity: 0;
  transform: translateY(20px) scale(0.985);
  filter: blur(1.5px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1), filter 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform, filter;
}

.services-grid-extra .service-card:nth-child(1) {
  transition-delay: 0.04s;
}

.services-grid-extra .service-card:nth-child(2) {
  transition-delay: 0.11s;
}

.services-grid-extra .service-card:nth-child(3) {
  transition-delay: 0.18s;
}

.services-grid-extra .service-card:nth-child(4) {
  transition-delay: 0.25s;
}

.services-grid-extra .service-card:nth-child(5) {
  transition-delay: 0.32s;
}

.services-grid-extra .service-card:nth-child(6) {
  transition-delay: 0.39s;
}

.services-grid-extra .service-card:nth-child(7) {
  transition-delay: 0.46s;
}

.services-grid-extra .service-card:nth-child(8) {
  transition-delay: 0.53s;
}

.services-grid-extra .service-card:nth-child(9) {
  transition-delay: 0.6s;
}

.services-grid-extra.is-open {
  opacity: 1;
  transform: translateY(0);
  margin-top: 14px;
  pointer-events: auto;
}

.services-grid-extra.is-open .service-card {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.site-footer {
  color: white;
  background: black;
  border-top: 1px solid var(--line);
  padding: 20px 16px 28px;
  text-align: center;
  font-size: 1.05rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 2px clamp(16px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
  height: auto;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .5s ease;
  pointer-events: none;
}
.slide.active {
  position: relative;
  opacity: 1;
  pointer-events: auto;
}
.slide img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}
.slide picture {
  display: block;
  width: 100%;
  background: #f4f4f4;
}

.software-buttons {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.software-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 14px;
  display: grid;
  gap: 12px;
  justify-items: center;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
  transition: transform .2s ease, box-shadow .2s ease;
}
.software-card img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  display: block;
  border-radius: 16px;
  padding: 8px;
  background: #f7fafc;
  border: 1px solid rgba(0, 0, 0, 0.06);
}
.software-card h4 {
  margin: 0;
  font-family: Outfit, sans-serif;
  font-size: 1.02rem;
  color: #262b32;
}
.software-card .download-btn {
  width: 100%;
}

.step-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 14px;
}
.step-item p { margin: 8px 0 0; color: var(--muted); }
.step-item span {
  display: inline-block;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  text-align: center;
  line-height: 26px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
}

.step-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.strip {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.strip .card-light { text-align: center; padding: 14px; }
.strip p { margin-top: 4px; color: #59606a; }
.strip strong { color: #1b1f25; font-size: 1.06rem; }

.tag {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(238, 125, 22, 0.12);
  color: #343942;
  font-weight: 700;
  font-size: .88rem;
}

#hero-question { margin-left: 35px; }

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.topic-close {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: #222;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 1.1rem;
}

.topic-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  place-items: center;
  padding: 18px;
}
.topic-modal.open { display: grid; }

.topic-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 18, 0.56);
  backdrop-filter: blur(4px);
}

.topic-modal-body {
  padding: 16px;
  display: grid;
  gap: 12px;
}
.topic-modal-body p { margin: 0; color: #48505b; }

.topic-modal-card {
  position: relative;
  width: min(820px, 100%);
  max-height: min(82vh, 920px);
  overflow: auto;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: linear-gradient(180deg, #fffefc, #ffffff);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  animation: modalIn .25s ease;
}

.topic-modal-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
}
.topic-modal-head h3 { margin: 0; font-size: 1.16rem; }

.topic-points {
  display: grid;
  gap: 8px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
}
.topic-points li {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(238, 125, 22, 0.08);
  border: 1px solid rgba(238, 125, 22, 0.14);
  color: #343b45;
}

.visual-card {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  display: grid;
  grid-template-rows: auto auto 1fr;
}
.visual-card img {
  width: 100%;
  height: 250px;
  object-fit: contain;
  background: linear-gradient(180deg, #f8fafc, #ffffff);
  padding: 0;
  display: block;
}
.visual-card.acc-item button {
  border-top: 1px solid var(--line);
}
.visual-card.acc-item.open div {
  max-height: 320px;
}

.visual-grid {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

@keyframes modalIn {
  from { transform: translateY(8px) scale(.985); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes reveal {
  to { opacity: 1; transform: none; }
}

@media (min-width: 981px) {
  .has-mega:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

@media (min-width: 981px) {
  .service-card:hover,
  .card-light:hover {
    --tz: -5px;
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.1);
  }
  .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
  }
}

@media (min-width: 981px) {
  .software-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 28px rgba(0, 0, 0, 0.1);
  }
}

@media (max-width: 980px) {
  html,
  body,
  main,
  .site-header,
  .page,
  .hero,
  .carousel,
  .cta-panel,
  .topic-modal,
  .topic-modal-card {
    max-width: 100%;
  }
  .actions .btn { width: 100%; text-align: center; }
  .actions { gap: 10px; }
  .hero-side h3 { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
  #hero-question { margin-left: 0; }
  .carousel { margin-top: 20px; border-radius: 16px; }
  .carousel-btn {
    width: 34px;
    height: 34px;
    border-color: rgba(255, 255, 255, 0.35);
  }
  .carousel-btn.next { right: 8px; }
  .carousel-btn.prev { left: 8px; }
  .card-light,
  .cta-panel,
  .service-card { padding: 16px; border-radius: 14px; }
  .contact-grid,
  .download-grid,
  .feature-list,
  .info-grid,
  .services-grid,
  .software-buttons,
  .step-line { grid-template-columns: 1fr; }
  .has-mega { width: 100%; }
  .has-mega.open .mega-menu { display: block; }
  .hero { margin-top: 8px; }
  .hero-grid { grid-template-columns: 1fr; }
  h1 { font-size: clamp(1.85rem, 9vw, 2.8rem); }
  .main-nav {
    position: absolute;
    left: 12px;
    right: 12px;
    top: 68px;
    bottom: auto;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 8px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
    max-height: calc(100dvh - 86px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    touch-action: pan-y;
    z-index: 90;
  }
  .main-nav.open { display: flex; }
  .main-nav a { font-size: .89rem; padding: 11px 12px; }
  .mega-col {
    padding: 6px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
  }
  .mega-menu {
    position: static;
    min-width: 0;
    margin-top: 8px;
    padding: 10px;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-radius: 12px;
    backdrop-filter: none;
  }
  .mega-panel.active,
  .mega-panel[data-panel="assistenza"],
  .mega-panel[data-panel="reti"],
  .mega-panel[data-panel="voip"] {
    grid-template-columns: 1fr;
  }
  .mega-tab {
    font-size: .72rem;
    padding: 6px 10px;
  }
  .mega-tabs {
    gap: 6px;
    margin-bottom: 10px;
  }
  .mega-toggle {
    width: 100%;
    text-align: left;
    color: #1f1f22;
    background: rgba(238, 125, 22, 0.08);
  }
  .menu-toggle { display: inline-block; }
  .mobile-dock { display: none; }
  #settori-card,
  #flusso-card { width: 100% !important; }
  #settori-card .tag-cloud {
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-items: center;
  }
  .partner-card { height: 110px; }
  .partners { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strip,
  .visual-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .visual-card img { height: 220px; }
  body.has-mobile-dock .site-footer { padding-bottom: 34px; }
  body.menu-open {
    overflow: hidden;
  }
  main { padding: 20px 14px 96px; }
}

@media (max-width: 760px) {
  .back-to-top {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 58px);
  }
  .mobile-dock { display: grid; }
  body.has-mobile-dock .back-to-top {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 58px);
  }
  body.has-mobile-dock .site-footer { padding-bottom: 66px; }
  .topic-modal { padding: 12px; }
  .topic-modal-card {
    border-radius: 14px;
    max-height: 88vh;
  }
}

@media (max-width: 560px) {
  .brand img { height: clamp(42px, 13vw, 56px); }
  .carousel-btn { display: none; }
  .carousel-dots { bottom: 8px; }
  .partners { grid-template-columns: 1fr; }
  .site-header {
    padding: 10px 12px;
  }
  .mobile-dock {
    left: 10px;
    right: 10px;
    grid-template-columns: repeat(2, minmax(102px, 132px));
    gap: 6px;
  }
  .mobile-dock a {
    font-size: .78rem;
    padding: 7px 8px;
  }
  .page { margin: 12px auto; }
  .strip,
  .strip.reveal {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
  }
  .strip .card-light {
    padding: 9px 8px;
    border-radius: 10px;
  }
  .strip strong { font-size: .92rem; }
  .strip p {
    margin-top: 2px;
    font-size: .82rem;
    line-height: 1.35;
  }
  .visual-card img { height: 200px; }
  .visual-grid { grid-template-columns: 1fr; }
}

@media (max-width: 360px) {
  .strip,
  .strip.reveal { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .card-light,
  .service-card {
    transform: none;
    transition: box-shadow .2s ease;
  }
}