*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#07070d;
  --s1:#0e0e18;
  --s2:#13131f;
  --fg:#6a6a80;
  --mid:#9999b0;
  --hi:#dddde8;
  --c1:#00f0ff;
  --c2:#bf5af2;
  --c3:#30d158;
  --glow1:rgba(0,240,255,.15);
  --glow2:rgba(191,90,242,.15);
  --sans:'Space Grotesk',sans-serif;
  --mono:'JetBrains Mono',monospace;
}

::selection{background:var(--c1);color:var(--bg)}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--fg);font-family:var(--mono);font-size:15px;overflow-x:hidden}
a{color:var(--c1);text-decoration:none}
canvas#particles{position:fixed;inset:0;z-index:0;pointer-events:none}

/* ═══ CURSOR GLOW ═══ */
.cursor-glow{
  position:fixed;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,240,255,.06),transparent 70%);
  pointer-events:none;z-index:1;
  transform:translate(-50%,-50%);
  transition:opacity .3s;
}

/* ═══ NAV ═══ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:56px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 2rem;background:rgba(7,7,13,.7);backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.logo{font-family:var(--sans);font-weight:700;font-size:1rem;color:var(--hi)}
.logo span{color:var(--c1)}
.nav-links{display:flex;gap:1.8rem}
.nav-links a{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--fg);transition:color .3s}
.nav-links a:hover{color:var(--c1)}

/* ═══ WRAP ═══ */
.wrap{max-width:880px;margin:0 auto;padding:0 2rem;position:relative;z-index:2}

/* ═══ HERO ═══ */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:56px}
.hero-inner{width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.4rem 1rem;border-radius:20px;
  background:rgba(0,240,255,.06);border:1px solid rgba(0,240,255,.12);
  font-size:11px;color:var(--c1);letter-spacing:2px;
  margin-bottom:2rem;cursor:default;
  transition:all .3s;
}
.hero-badge:hover{background:rgba(0,240,255,.12);transform:scale(1.03)}
.hero-badge .pulse{width:6px;height:6px;border-radius:50%;background:var(--c3);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(48,209,88,.5)}70%{box-shadow:0 0 0 8px transparent}}

.hero h1{
  font-family:var(--sans);font-weight:700;
  font-size:clamp(2.5rem,7vw,5rem);line-height:1.05;
  color:var(--hi);letter-spacing:-2px;margin-bottom:1.5rem;
}
.hero h1 .typed-text{color:var(--c1)}
.hero h1 .cursor-blink{
  display:inline-block;width:3px;height:.85em;background:var(--c1);
  margin-left:4px;vertical-align:text-bottom;
  animation:blink .8s step-end infinite;
}
@keyframes blink{50%{opacity:0}}

.hero-p{font-size:16px;line-height:1.9;color:var(--mid);max-width:520px}
.hero-p strong{color:var(--hi);font-weight:500}

/* ═══ TERMINAL ═══ */
.terminal{
  margin-top:2.5rem;
  background:var(--s1);border:1px solid rgba(255,255,255,.06);
  border-radius:10px;overflow:hidden;max-width:520px;
}
.term-bar{
  display:flex;align-items:center;gap:.5rem;
  padding:.6rem 1rem;background:rgba(255,255,255,.02);
  border-bottom:1px solid rgba(255,255,255,.04);
}
.term-dot{width:8px;height:8px;border-radius:50%}
.term-dot.r{background:#ff5f56}
.term-dot.y{background:#ffbd2e}
.term-dot.g{background:#27c93f}
.term-title{font-size:11px;color:var(--fg);opacity:.4;margin-left:.5rem}
.term-body{padding:1rem;font-size:14px;line-height:1.8;min-height:80px}
.term-line{color:var(--fg);margin-bottom:.3rem}
.term-line .prompt{color:var(--c3)}
.term-line .cmd{color:var(--hi)}
.term-line .out{color:var(--c1);opacity:.7}
.term-input-wrap{display:flex;align-items:center;gap:.5rem}
.term-input-wrap .prompt{color:var(--c3)}
#termInput{
  background:none;border:none;outline:none;
  color:var(--hi);font-family:var(--mono);font-size:14px;
  flex:1;caret-color:var(--c1);
}
#termInput::placeholder{color:var(--fg);opacity:.3}

/* ═══ SECTIONS ═══ */
.sec{padding:6rem 0}
.sec-head{
  font-family:var(--sans);font-weight:700;font-size:1.6rem;
  color:var(--hi);letter-spacing:-.5px;margin-bottom:2.5rem;
}

/* ═══ SKILL BARS ═══ */
.sk-group{margin-bottom:2rem}
.sk-group-title{
  font-size:11px;letter-spacing:3px;text-transform:uppercase;
  color:var(--c2);opacity:.6;margin-bottom:1rem;
  cursor:pointer;transition:opacity .3s;
}
.sk-group-title:hover{opacity:1}
.sk-item{
  display:flex;align-items:center;gap:1rem;
  padding:.45rem 0;cursor:pointer;
  transition:all .2s;
}
.sk-item:hover{padding-left:.5rem}
.sk-item:hover .sk-name{color:var(--hi)}
.sk-name{font-size:13.5px;color:var(--mid);width:200px;transition:color .2s}
.sk-bar{flex:1;height:3px;background:var(--s2);border-radius:2px;overflow:hidden;max-width:300px}
.sk-fill{
  height:100%;border-radius:2px;width:0%;
  transition:width 1.2s cubic-bezier(.16,1,.3,1);
}
.sk-fill.cyan{background:linear-gradient(90deg,var(--c1),rgba(0,240,255,.4))}
.sk-fill.purple{background:linear-gradient(90deg,var(--c2),rgba(191,90,242,.4))}
.sk-fill.green{background:linear-gradient(90deg,var(--c3),rgba(48,209,88,.4))}

/* ═══ TILT CARDS ═══ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  perspective: 1000px;
}

.tilt-card {
  background: linear-gradient(145deg, var(--s1), rgba(14, 14, 24, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 14px;
  padding: 2rem;
  transform-style: preserve-3d;
  will-change: transform;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: default;
}

.tilt-card:hover {
  border-color: rgba(0, 240, 255, 0.15);
  box-shadow: 0 20px 40px rgba(7, 7, 13, 0.5), 0 0 30px rgba(0, 240, 255, 0.03);
}

.tilt-card .card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  will-change: transform;
}

.tilt-card h4 {
  font-family: var(--sans);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--hi);
  margin-bottom: 1rem;
  transform: translateZ(20px);
  letter-spacing: -0.5px;
}

.tilt-card .tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  margin-bottom: 1.5rem;
  transform: translateZ(15px);
}

.tilt-card .tag.sci {
  background: rgba(0, 240, 255, 0.04);
  color: var(--c1);
  border: 1px solid rgba(0, 240, 255, 0.15);
}

.tilt-card .tag.psych {
  background: rgba(191, 90, 242, 0.04);
  color: var(--c2);
  border: 1px solid rgba(191, 90, 242, 0.15);
}

.tilt-card .tag.green {
  background: rgba(48, 209, 88, 0.04);
  color: var(--c3);
  border: 1px solid rgba(48, 209, 88, 0.15);
}

.tilt-card .tag.gold {
  background: rgba(204, 155, 24, 0.04);
  color: #CC9B18;
  border: 1px solid rgba(204, 155, 24, 0.15);
}

.tilt-card .tag.red {
  background: rgba(212, 52, 44, 0.06);
  color: #d4342c;
  border: 1px solid rgba(212, 52, 44, 0.18);
}

.tilt-card p {
  font-size: 14.5px;
  color: var(--mid);
  line-height: 1.75;
  transform: translateZ(10px);
  margin-bottom: 0.8rem;
}

.tilt-card p strong {
  color: var(--c1);
  font-weight: 500;
}

.tilt-card.card-green .proj-link,
.tilt-card.card-green .card-btn,
.tilt-card.card-green p strong {
  color: var(--c3);
}

.tilt-card.card-gold .proj-link,
.tilt-card.card-gold .card-btn,
.tilt-card.card-gold p strong {
  color: #CC9B18;
}

.tilt-card.card-gold h4 {
  color: #CC9B18;
}

.tilt-card.card-psych h4 {
  color: var(--c2);
}

.tilt-card.card-red .proj-link,
.tilt-card.card-red .card-btn,
.tilt-card.card-red p strong {
  color: #d4342c;
}

.tilt-card.card-red h4 {
  color: #d4342c;
}

/* ═══ EXPERIENCE ACCORDION ═══ */
.xp-item{
  border: 1px solid rgba(255,255,255,.04);border-radius:10px;
  margin-bottom:.6rem;overflow:hidden;
  transition:border-color .3s;
}
.xp-item:hover,.xp-item.open{border-color:rgba(0,240,255,.1)}
.xp-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:1rem 1.4rem;cursor:pointer;
  transition:background .3s;
}
.xp-header:hover{background:rgba(255,255,255,.02)}
.xp-left{display:flex;align-items:center;gap:1rem}
.xp-role{font-family:var(--sans);font-size:15.5px;font-weight:600;color:var(--hi)}
.xp-co{font-size:12.5px;color:var(--c1);opacity:.5}
.xp-date{font-size:11px;color:var(--fg);opacity:.35;letter-spacing:.5px}
.xp-toggle{
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  border-radius:6px;background:rgba(255,255,255,.03);
  color:var(--fg);font-size:14px;transition:all .3s;
}
.xp-item.open .xp-toggle{background:rgba(0,240,255,.1);color:var(--c1);transform:rotate(45deg)}
.xp-body{
  max-height:0;overflow:hidden;
  transition:max-height .4s cubic-bezier(.16,1,.3,1),padding .4s;
}
.xp-item.open .xp-body{max-height:200px;padding:0 1.4rem 1.2rem}
.xp-body p{font-size:13.5px;color:var(--fg);line-height:1.85}

/* ═══ BOTTOM ═══ */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.box{
  background:var(--s1);border:1px solid rgba(255,255,255,.04);
  border-radius:12px;padding:1.5rem;
}
.box-title{
  font-family:var(--sans);font-size:12px;font-weight:700;
  letter-spacing:2px;text-transform:uppercase;
  color:var(--c1);margin-bottom:1rem;
}
.ed-i{padding:.4rem 0}
.ed-n{font-size:13.5px;color:var(--mid)}
.ed-s{font-size:11.5px;color:var(--fg);opacity:.4}
.ln-i{display:flex;align-items:center;gap:1rem;padding:.35rem 0}
.ln-n{font-size:13.5px;color:var(--mid);width:65px}
.ln-t{flex:1;height:2px;background:var(--s2);border-radius:1px;overflow:hidden;max-width:200px}
.ln-f{height:100%;border-radius:1px;background:linear-gradient(90deg,var(--c1),var(--c2));transition:width 1.4s cubic-bezier(.16,1,.3,1)}
.ln-l{font-size:10px;color:var(--fg);opacity:.3;width:20px;text-align:right}

.cert-list{list-style:none}
.cert-item{display:flex;align-items:baseline;gap:.9rem;padding:.5rem 0;border-bottom:1px solid rgba(255,255,255,.04)}
.cert-item:last-child{border-bottom:none}
.cert-num{font-family:var(--mono);font-size:11px;color:var(--c1);opacity:.6;flex-shrink:0;width:1.4rem}
.cert-name{font-size:13.5px;color:var(--mid);text-decoration:none;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.cert-name:hover{color:var(--c1);border-bottom-color:rgba(0,240,255,.35)}

.skill-gap-tags{display:flex;flex-wrap:wrap;gap:.6rem;align-content:flex-start;height:100%}
.skill-gap-tag{
  font-family:var(--mono);font-size:12px;padding:.55rem 1.1rem;border-radius:20px;align-self:flex-start;
  background:rgba(191,90,242,.06);border:1px solid rgba(191,90,242,.2);color:var(--c2);
}

/* ═══ CLICK RIPPLE ═══ */
.ripple{
  position:fixed;width:20px;height:20px;border-radius:50%;
  border:1px solid var(--c1);pointer-events:none;z-index:9999;
  animation:rippleOut .6s ease-out forwards;
}
@keyframes rippleOut{
  to{width:80px;height:80px;opacity:0;margin-left:-30px;margin-top:-30px}
}

/* ═══ FOOTER ═══ */
footer{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.04);
  margin-top:2rem;
}
.footer-inner{
  max-width:880px;margin:0 auto;
  padding:3rem 2rem;
  display:flex;flex-direction:column;align-items:center;gap:1.2rem;
}
.footer-logo{
  font-family:var(--sans);font-weight:700;font-size:1rem;
  color:var(--hi);text-decoration:none;transition:opacity .3s;
}
.footer-logo:hover{opacity:.6}
.footer-logo span{color:var(--c1)}
.footer-links{display:flex;gap:2rem}
.footer-links a{
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--fg);transition:color .3s;
}
.footer-links a:hover{color:var(--c1)}
.footer-copy{
  font-size:10px;color:var(--fg);opacity:.2;letter-spacing:2px;
  margin-top:.5rem;
}
.footer-email{
  font-family:var(--mono);font-size:14px;
  color:var(--hi);border-bottom:1px solid rgba(0,240,255,.2);
  padding-bottom:2px;transition:all .3s;
}
.footer-email:hover{color:var(--c1);border-bottom-color:var(--c1);opacity:1}

/* ═══ REVEAL ═══ */
.rv{opacity:0;transform:translateY(18px);transition:all .6s cubic-bezier(.22,1,.36,1)}
.rv.on{opacity:1;transform:none}

/* ═══ PROJECT CLUSTERS ═══ */
.proj-cluster{margin-bottom:4.5rem}
.proj-cluster:last-child{margin-bottom:0}
.cluster-head{margin-bottom:1.75rem;max-width:760px}
.cluster-eyebrow{
  display:block;font-size:11px;letter-spacing:3px;text-transform:uppercase;
  color:var(--c1);opacity:.75;margin-bottom:.6rem;
}
.cluster-head h3{font-family:var(--sans);font-size:1.25rem;color:var(--hi);font-weight:600;margin-bottom:.7rem}
.cluster-head p{color:var(--mid);font-size:13.5px;line-height:1.85}
.cluster-head p strong{color:var(--hi);font-weight:500}

/* catena lineare: Fisica Ontologica -> ONTO -> TheoryFlow */
.chain-row{display:flex;align-items:stretch;gap:0;perspective:1000px}
.chain-row .tilt-card{flex:1;min-width:0}
.chain-arrow{
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  width:2.5rem;color:var(--c1);font-size:1.3rem;opacity:.45;
}

/* hub + rami: Cybersecurity -> Tutanum, Psicologia Ontologica */
.hub-row{display:flex;flex-direction:column;perspective:1000px}
.tilt-card.hub{border-color:rgba(0,240,255,.18)}
.hub-badge{
  position:absolute;top:1.4rem;right:1.4rem;z-index:2;
  font-family:var(--mono);font-size:9px;letter-spacing:2px;text-transform:uppercase;font-weight:700;
  color:var(--bg);background:var(--c1);padding:.25rem .6rem;border-radius:4px;
}
.hub-connector{position:relative;height:2.25rem}
.hub-connector::before{
  content:'';position:absolute;top:0;left:50%;width:1px;height:100%;
  background:linear-gradient(var(--c1),rgba(0,240,255,.15));transform:translateX(-50%);opacity:.5;
}
.hub-branches{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;padding-top:1.25rem}
.hub-branches::before{
  content:'';position:absolute;top:0;left:12%;right:12%;height:1px;background:rgba(0,240,255,.3);
}
.hub-branches>.tilt-card{position:relative}
.hub-branches>.tilt-card::before{
  content:'';position:absolute;top:-1.25rem;left:50%;width:1px;height:1.25rem;
  background:rgba(0,240,255,.3);transform:translateX(-50%);
}

/* gruppo semplice: Folklore */
.group-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;perspective:1000px}

/* ═══ RESPONSIVE ═══ */
@media(max-width:768px){
  .card-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .tilt-card {
    padding: 1.5rem !important;
  }
  .tilt-card[style*="grid-column"] {
    grid-column: auto !important;
  }
  .duo{grid-template-columns:1fr}
  .xp-left{flex-direction:column;align-items:flex-start;gap:.2rem}
  .chain-row{flex-direction:column;gap:1.2rem}
  .chain-arrow{width:auto;height:1.5rem;transform:rotate(90deg)}
  .hub-branches{grid-template-columns:1fr;gap:1.2rem}
  .hub-branches::before,.hub-branches>.tilt-card::before{display:none}
  .group-row{grid-template-columns:1fr;gap:1.2rem}
  .sk-name{width:140px}
  nav{padding:0 1rem}
  .wrap{padding:0 1.2rem}
  .nav-links a{font-size:10px;letter-spacing:1px}
  .nav-links{gap:1rem}
}