/* ckmsoftware.it — nessun JavaScript, nessuna risorsa esterna (CSP: solo 'self').
   Direzione "Adriatico di notte": fondo inchiostro con griglia da progetto, bagliori acqua-marina,
   un solo accento caldo (l'oro di RENTAX). Animazioni solo CSS, spente con prefers-reduced-motion. */
:root {
  --night: #070d14;
  --night-2: #0b1520;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-line: rgba(160, 220, 215, 0.14);
  --ink: #eef3f2;
  --muted: #a7b6b8;
  --aqua: #5fe0cf;
  --sky: #6aa8ff;
  --gold: #d9b26a;
  --rx-navy: rgb(13, 17, 30);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "URW Palladio L", Georgia, serif;
  --sans: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
  --max: 1180px;
  --radius: 18px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--night); color: var(--ink); font-family: var(--sans); font-size: 1.0625rem; line-height: 1.65; overflow-x: hidden; }
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image: linear-gradient(rgba(150, 210, 205, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(150, 210, 205, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 85%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 85%);
}
body::after {
  content: ""; position: fixed; inset: -20% -10% auto -10%; height: 90vh; z-index: -1; pointer-events: none;
  background: radial-gradient(40% 50% at 20% 30%, rgba(95, 224, 207, 0.16), transparent 70%), radial-gradient(35% 45% at 80% 20%, rgba(106, 168, 255, 0.13), transparent 70%);
  animation: breathe 14s ease-in-out infinite alternate;
}
@keyframes breathe { to { transform: translate3d(2%, 3%, 0) scale(1.08); } }

img, svg { display: block; max-width: 100%; }
a { color: var(--aqua); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--aqua); outline-offset: 3px; border-radius: 4px; }
::selection { background: rgba(95, 224, 207, 0.3); }
.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; }
.skip { position: absolute; left: 16px; top: -100px; background: var(--aqua); color: var(--night); padding: 10px 16px; z-index: 50; border-radius: 8px; font-weight: 600; }
.skip:focus { top: 12px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 clamp(16px, 5vw, 48px); }

/* intestazione */
.top { position: sticky; top: 0; z-index: 20; background: rgba(7, 13, 20, 0.72); -webkit-backdrop-filter: saturate(140%) blur(14px); backdrop-filter: saturate(140%) blur(14px); border-bottom: 1px solid var(--panel-line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; font-size: 0.95rem; font-weight: 700; letter-spacing: 0.22em; color: var(--ink); text-decoration: none; }
.brand-mark { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; font-family: var(--serif); font-size: 1.05rem; letter-spacing: 0; color: var(--night); background: linear-gradient(135deg, var(--aqua), var(--sky)); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15) inset, 0 6px 24px rgba(95, 224, 207, 0.35); }
.brand-logo { width: 38px; height: 38px; filter: drop-shadow(0 4px 14px rgba(95, 224, 207, 0.35)); transition: transform .4s ease; }
.brand:hover .brand-logo { transform: rotate(-12deg); }
.brand-text { font-weight: 800; letter-spacing: 0.2em; }
.brand-text b { font-weight: 400; color: var(--muted); }
.wordmark img { width: clamp(180px, 26vw, 280px); height: auto; margin-top: 6px; }
.right { display: flex; align-items: center; gap: 10px; }
.nav { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; color: var(--muted); text-decoration: none; font-size: 0.95rem; border-radius: 8px; transition: color .2s, background .2s; }
.nav a:hover { color: var(--ink); background: var(--panel); }
.lang { display: flex; gap: 2px; list-style: none; margin: 0; padding: 3px; border: 1px solid var(--panel-line); border-radius: 999px; }
.lang a, .lang span { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 36px; padding: 0 10px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.06em; border-radius: 999px; color: var(--muted); text-decoration: none; }
.lang span[aria-current] { color: var(--night); background: var(--ink); }
.lang a:hover { color: var(--ink); }

/* pulsanti */
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 650; text-decoration: none; color: var(--night); background: linear-gradient(135deg, var(--aqua), #8fd9ff); box-shadow: 0 10px 30px rgba(95, 224, 207, 0.28); transition: transform .25s ease, box-shadow .25s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(95, 224, 207, 0.4); }
.button .arrow { transition: transform .25s ease; }
.button:hover .arrow { transform: translateX(4px); }
.button-gold { margin-top: 28px; color: var(--rx-navy); background: linear-gradient(135deg, #f3c265, #d9b26a); box-shadow: 0 10px 30px rgba(217, 178, 106, 0.28); }
.button-gold:hover { box-shadow: 0 16px 40px rgba(217, 178, 106, 0.4); }
.button-quiet { color: var(--ink); background: transparent; border: 1px solid rgba(238, 243, 242, 0.28); box-shadow: none; }
.button-quiet:hover { background: var(--panel); box-shadow: none; border-color: rgba(238, 243, 242, 0.5); }

/* apertura */
.hero { padding: clamp(48px, 9vw, 110px) 0 clamp(40px, 6vw, 72px); }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(24px, 5vw, 64px); align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 22px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--aqua); }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 0 4px rgba(95, 224, 207, 0.18); animation: pulse 2.6s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(95, 224, 207, 0); } }
.hero h1 { margin: 0; font-family: var(--serif); font-weight: 500; font-size: clamp(2.4rem, 6vw, 4.8rem); line-height: 1.05; letter-spacing: -0.02em; }
.glow { background: linear-gradient(100deg, var(--aqua) 10%, var(--sky) 55%, var(--aqua) 90%); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: sheen 8s linear infinite; }
@keyframes sheen { to { background-position: -200% 0; } }
.intro { max-width: 52ch; margin: 26px 0 0; font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--muted); }
.rise { opacity: 0; transform: translateY(18px); animation: rise .9s cubic-bezier(.2, .7, .2, 1) forwards; }
.d1 { animation-delay: .08s; } .d2 { animation-delay: .22s; } .d3 { animation-delay: .36s; } .d4 { animation-delay: .5s; }
@keyframes rise { to { opacity: 1; transform: none; } }

.orbit { aspect-ratio: 1; width: 100%; max-width: 460px; justify-self: end; }
.orbit svg { width: 100%; height: 100%; overflow: visible; }
.ring { fill: none; stroke: rgba(150, 220, 215, 0.22); stroke-width: 1; }
.ring.dash { stroke-dasharray: 3 7; }
.spin-a, .spin-b, .spin-c, .halo { transform-box: view-box; transform-origin: 50% 50%; }
.spin-a { animation: spin 38s linear infinite; }
.spin-b { animation: spin 24s linear infinite reverse; }
.spin-c { animation: spin 60s linear infinite; }
.node { fill: var(--aqua); }
.node.sky { fill: var(--sky); }
.node.gold { fill: var(--gold); }
.link { stroke: rgba(95, 224, 207, 0.35); stroke-width: 1; }
.halo { animation: halo 5s ease-in-out infinite alternate; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes halo { from { transform: scale(.9); opacity: .7; } to { transform: scale(1.08); opacity: 1; } }

.facts { grid-column: 1 / -1; list-style: none; margin: clamp(40px, 6vw, 72px) 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--panel-line); border-radius: var(--radius); background: var(--panel); overflow: hidden; }
.facts li { padding: 22px 26px; }
.facts li + li { border-left: 1px solid var(--panel-line); }
.k { display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.v { display: block; margin-top: 6px; font-family: var(--serif); font-size: 1.22rem; }

/* sezioni */
.block { padding: clamp(64px, 10vw, 120px) 0; }
.section-head { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 32px; align-items: end; margin-bottom: clamp(32px, 5vw, 56px); }
.label { margin: 0 0 14px; font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--aqua); }
.block h2, .rentax h2 { margin: 0; font-family: var(--serif); font-weight: 500; font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.08; letter-spacing: -0.015em; }
.section-head p { margin: 0; color: var(--muted); max-width: 52ch; }

.items { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: item; }
.items li { position: relative; padding: 30px 28px 32px; border-radius: var(--radius); background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)); border: 1px solid var(--panel-line); counter-increment: item; overflow: hidden; transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease; }
.items li::before { content: "0" counter(item); position: absolute; top: 24px; right: 26px; font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }
.items li::after { content: ""; position: absolute; left: -30%; right: -30%; bottom: -60%; height: 70%; background: radial-gradient(closest-side, rgba(95, 224, 207, 0.22), transparent); opacity: 0; transition: opacity .4s ease; pointer-events: none; }
.items li:hover { transform: translateY(-6px); border-color: rgba(95, 224, 207, 0.45); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35); }
.items li:hover::after { opacity: 1; }
.icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 26px; background: rgba(95, 224, 207, 0.1); border: 1px solid rgba(95, 224, 207, 0.28); }
.icon svg { width: 26px; height: 26px; stroke: var(--aqua); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.items h3 { margin: 0 0 10px; font-size: 1.22rem; font-weight: 650; }
.items p { margin: 0; color: var(--muted); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); position: relative; }
.steps::before { content: ""; position: absolute; left: 0; right: 0; top: 19px; height: 1px; background: linear-gradient(90deg, var(--aqua), var(--sky), var(--gold)); opacity: .55; }
.steps li { position: relative; padding-right: 22px; }
.dot { position: relative; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--night-2); border: 1px solid rgba(95, 224, 207, 0.5); font-family: var(--mono); font-size: 0.8rem; color: var(--aqua); }
.steps h3 { margin: 22px 0 6px; font-size: 1.1rem; font-weight: 650; }
.steps p { margin: 0; color: var(--muted); font-size: 0.98rem; }

.rentax { padding: clamp(24px, 5vw, 48px) 0 clamp(64px, 10vw, 120px); }
.tile { position: relative; overflow: hidden; border-radius: 28px; padding: clamp(24px, 4.5vw, 56px); background: radial-gradient(60% 80% at 100% 0%, rgba(217, 178, 106, 0.18), transparent 60%), radial-gradient(50% 70% at 0% 100%, rgba(95, 224, 207, 0.12), transparent 60%), var(--rx-navy); border: 1px solid rgba(217, 178, 106, 0.28); display: grid; grid-template-columns: auto 1fr; gap: clamp(24px, 5vw, 56px); align-items: center; }
.tile::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(217, 178, 106, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(217, 178, 106, 0.06) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: linear-gradient(120deg, #000, transparent 70%); mask-image: linear-gradient(120deg, #000, transparent 70%); pointer-events: none; }
.tile .mark { position: relative; width: clamp(80px, 12vw, 136px); height: auto; animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px) rotate(-2deg); } }
.tile > div { position: relative; }
.tile .label { color: var(--gold); }
.lead { font-size: clamp(1.08rem, 1.7vw, 1.25rem); margin: 18px 0 0; max-width: 60ch; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 30px; }
.duo div { padding: 20px 22px; border-radius: 14px; background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(217, 178, 106, 0.22); transition: border-color .3s, transform .3s; }
.duo div:hover { border-color: rgba(217, 178, 106, 0.55); transform: translateY(-3px); }
.duo strong { display: block; font-family: var(--serif); font-size: 1.25rem; font-weight: 600; color: var(--gold); }
.duo span { display: block; margin-top: 4px; color: var(--muted); font-size: 0.98rem; }

.about { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 6vw, 72px); align-items: start; }
.about .text p:not(.label) { margin: 22px 0 0; font-size: 1.12rem; color: var(--muted); max-width: 56ch; }
.contacts { margin: 0; display: grid; gap: 12px; }
.contacts > div { padding: 20px 24px; border-radius: 14px; background: var(--panel); border: 1px solid var(--panel-line); transition: border-color .3s; }
.contacts > div:hover { border-color: rgba(95, 224, 207, 0.4); }
.contacts dt { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.contacts dd { margin: 6px 0 0; font-size: 1.12rem; overflow-wrap: anywhere; }
.contacts a { color: var(--ink); text-decoration: none; background: linear-gradient(var(--aqua), var(--aqua)) 0 100% / 0 1px no-repeat; transition: background-size .3s; }
.contacts a:hover { background-size: 100% 1px; }

@supports (animation-timeline: view()) {
  .reveal { animation: reveal linear both; animation-timeline: view(); animation-range: entry 0% cover 25%; }
  @keyframes reveal { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: none; } }
}

/* pagine di testo (privacy, 404) */
.doc { max-width: 760px; padding: clamp(48px, 8vw, 96px) 0; }
.doc h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.1; margin: 0 0 24px; }
.doc h2 { font-family: var(--serif); font-weight: 500; font-size: 1.5rem; margin: 40px 0 10px; }
.doc p, .doc li { color: #c9d4d5; }

/* piede legale */
.legal { border-top: 1px solid var(--panel-line); background: rgba(0, 0, 0, 0.25); padding: 40px 0 48px; font-size: 0.88rem; color: var(--muted); }
.legal p { margin: 0 0 8px; }
.legal strong, .legal a { color: var(--ink); }
.legal nav ul { display: flex; flex-wrap: wrap; gap: 4px 20px; list-style: none; margin: 18px 0 0; padding: 0; }
.legal nav a { display: inline-flex; align-items: center; min-height: 44px; }

@media (max-width: 900px) {
  .nav { display: none; }
  .hero .wrap, .section-head, .about, .tile { grid-template-columns: 1fr; }
  .orbit { max-width: 300px; justify-self: center; order: -1; }
  .items { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; gap: 32px 0; }
  .steps::before { display: none; }
}
@media (max-width: 600px) {
  .facts, .duo, .steps { grid-template-columns: 1fr; }
  .facts li + li { border-left: 0; border-top: 1px solid var(--panel-line); }
  .brand-text { display: none; }
  .actions .button { flex: 1 1 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rise { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}