.tzc{--bg:#FFFFFF;--surface:#F3F7FB;--soft:#E7F0F9;--ink:#26303A;--muted:#5A6774;--accent:#3B81BF;--deep:#1F4E79;--line:#DCE6F0;--ondeep:#CFE0F0;--r:14px;color:var(--ink);font-family:Roboto,sans-serif;font-size:17px;line-height:1.65}
.tzc *{box-sizing:border-box}
.tzc section{margin:0 0 76px}
.tzc h2,.tzc h3{font-family:Roboto,sans-serif;color:var(--deep);margin:0;clear:none}
.tzc p{margin:0 0 1em;max-width:68ch}
.tzc img{display:block;max-width:100%;height:auto}
.tzc strong,.tzc b{font-weight:600;color:var(--ink)}
.tzc-kicker{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 10px!important}
.tzc-display{font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.12;letter-spacing:-.01em;max-width:26ch;margin-bottom:16px!important}
.tzc-lead{font-size:19px;color:var(--muted)}
.tzc-h{font-size:clamp(25px,3vw,32px);font-weight:700;line-height:1.15;margin-bottom:10px!important}
.tzc-sub{color:var(--muted);margin-bottom:28px!important}
.tzc h3{font-size:20px;font-weight:600;line-height:1.25;margin-bottom:8px}

/* Esploratore sulla risonanza */
.tzc-explorer{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:28px;align-items:center;margin-top:28px;padding:24px;border-radius:var(--r);background:linear-gradient(140deg,var(--ink) 0%,var(--deep) 100%)}
.tzc-scan{position:relative;margin:0;border-radius:10px;overflow:hidden;background:var(--ink);box-shadow:0 0 0 1px rgba(207,224,240,.15)}
.tzc-scan img{width:100%}
.tzc-scan__line{position:absolute;left:0;right:0;top:0;height:22%;background:linear-gradient(180deg,rgba(59,129,191,0) 0%,rgba(59,129,191,.35) 80%,rgba(207,224,240,.9) 100%);mix-blend-mode:screen;animation:tzc-scan 4.5s ease-in-out infinite;pointer-events:none}
.tzc-spot{position:absolute;transform:translate(-50%,-50%);border:0;padding:0;background:none;cursor:pointer;z-index:2}
.tzc-spot span{display:grid;place-items:center;width:30px;height:30px;border-radius:999px;background:var(--accent);color:#fff;font:600 14px/1 Roboto,sans-serif;box-shadow:0 0 0 4px rgba(59,129,191,.35);transition:transform .25s ease,background .25s ease}
.tzc-spot::before{content:"";position:absolute;left:50%;top:50%;width:30px;height:30px;margin:-15px 0 0 -15px;border-radius:999px;border:2px solid var(--ondeep);animation:tzc-pulse 2.4s ease-out infinite}
.tzc-spot em{position:absolute;left:50%;top:calc(100% + 6px);transform:translateX(-50%);white-space:nowrap;font:600 12px/1 Roboto,sans-serif;font-style:normal;color:var(--deep);background:#fff;padding:5px 8px;border-radius:6px;opacity:0;pointer-events:none;transition:opacity .2s ease}
.tzc-spot:hover em,.tzc-spot:focus-visible em,.tzc-spot.is-active em{opacity:1}
.tzc-spot:hover span,.tzc-spot.is-active span{transform:scale(1.15);background:#fff;color:var(--deep)}
.tzc-spot:focus-visible{outline:none}
.tzc-spot:focus-visible span{outline:3px solid var(--ondeep);outline-offset:2px}
.tzc-explorer__panels{position:relative;min-height:210px}
.tzc-panel{background:rgba(255,255,255,.06);border:1px solid rgba(207,224,240,.25);border-left:4px solid var(--accent);border-radius:10px;padding:20px 22px}
.tzc-panel h3{color:#fff}
.tzc-panel p{margin:0;font-size:16px;color:var(--ondeep)}
.tzc-panel strong{color:#fff}
.tzc-js .tzc-panel{position:absolute;inset:0 auto auto 0;width:100%;opacity:0;transform:translateX(14px);visibility:hidden;transition:opacity .35s ease,transform .35s ease,visibility 0s .35s}
.tzc-js .tzc-panel.is-active{position:relative;opacity:1;transform:none;visibility:visible;transition:opacity .35s ease,transform .35s ease}
.tzc:not(.tzc-js) .tzc-panel+.tzc-panel{margin-top:12px}

/* Il viaggio di un segnale */
.tzc-steps{--p:0;position:relative;list-style:none!important;margin:0!important;padding:0 0 0 46px!important;counter-reset:tzc}
.tzc-steps::before,.tzc-steps::after{content:"";position:absolute;left:15px;top:8px;width:3px;border-radius:3px;z-index:0}
.tzc-step{z-index:1}
.tzc-steps::before{bottom:8px;background:var(--line)}
.tzc-steps::after{height:calc((100% - 16px) * var(--p));background:linear-gradient(180deg,var(--accent),var(--deep));transition:height .15s linear}
.tzc-step{position:relative;margin:0 0 22px!important;padding:14px 18px;border-radius:12px;background:var(--surface);border:1px solid var(--line);counter-increment:tzc;transition:background .4s ease,border-color .4s ease}
.tzc-step::before{content:counter(tzc);position:absolute;left:-46px;top:12px;width:33px;height:33px;border-radius:999px;display:grid;place-items:center;font:700 15px/1 Roboto,sans-serif;background:#fff;color:var(--muted);border:2px solid var(--line);transition:all .4s ease}
.tzc-step b{display:block;font-size:18px;color:var(--deep);margin-bottom:2px}
.tzc-step span{display:block;font-size:15.5px;color:var(--muted);line-height:1.5}
.tzc-step.is-lit{background:#fff;border-color:var(--accent)}
.tzc-step.is-lit::before{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 0 0 6px rgba(59,129,191,.18)}

/* Periferica o centrale */
.tzc-switch{position:relative;display:inline-grid;grid-template-columns:1fr 1fr;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px;margin-bottom:22px}
.tzc-switch button{position:relative;z-index:1;border:0;background:none;padding:11px 26px;border-radius:999px;font:600 15px/1 Roboto,sans-serif;color:var(--muted);cursor:pointer;transition:color .3s ease}
.tzc-switch button.is-active{color:#fff}
.tzc-switch__thumb{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:999px;background:var(--accent);transition:transform .4s cubic-bezier(.6,.05,.3,1)}
.tzc-switch.is-cen .tzc-switch__thumb{transform:translateX(100%);background:var(--deep)}
.tzc-sides{position:relative}
.tzc-side{border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;background:#fff}
.tzc-side h3{margin-bottom:14px}
.tzc-side ul{list-style:none!important;margin:0!important;padding:0;display:grid;gap:10px}
.tzc-side li{display:grid;grid-template-columns:130px 1fr;gap:14px;align-items:baseline;margin:0!important;padding-bottom:10px;border-bottom:1px solid var(--line);font-size:16px}
.tzc-side li:last-child{border-bottom:0;padding-bottom:0}
.tzc-side li b{color:var(--deep)}
.tzc-side[data-side="cen"]{border-left:4px solid var(--deep)}
.tzc-side[data-side="per"]{border-left:4px solid var(--accent)}
.tzc-js .tzc-side{position:absolute;inset:0 auto auto 0;width:100%;opacity:0;transform:translateY(10px);visibility:hidden;transition:opacity .4s ease,transform .4s ease,visibility 0s .4s}
.tzc-js .tzc-side.is-active{position:relative;opacity:1;transform:none;visibility:visible;transition:opacity .4s ease,transform .4s ease}
.tzc-js .tzc-side li{opacity:0;transform:translateX(-10px);transition:opacity .35s ease,transform .35s ease}
.tzc-js .tzc-side.is-active li{opacity:1;transform:none}
.tzc-js .tzc-side.is-active li:nth-child(2){transition-delay:.06s}
.tzc-js .tzc-side.is-active li:nth-child(3){transition-delay:.12s}
.tzc-js .tzc-side.is-active li:nth-child(4){transition-delay:.18s}
.tzc-js .tzc-side.is-active li:nth-child(5){transition-delay:.24s}
.tzc:not(.tzc-js) .tzc-side+.tzc-side{margin-top:14px}
.tzc-note{font-size:14.5px;color:var(--muted);margin-top:16px!important}

/* Esami */
.tzc-exam{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:center}
.tzc-exam__media{background:var(--surface);border-radius:var(--r);padding:14px;border:1px solid var(--line)}
.tzc-exam__thumb{margin:0 0 16px;max-width:260px;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.tzc-exam p{font-size:16px}
.tzc-links{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0!important}

/* Schede delle cause */
.tzc-tabs{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:24px;align-items:start}
.tzc-tabs__list{display:grid;gap:6px}
.tzc-tabs__list button{text-align:left;border:1px solid var(--line);background:#fff;padding:12px 14px;border-radius:10px;font:600 15.5px/1.3 Roboto,sans-serif;color:var(--deep);cursor:pointer;transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease}
.tzc-tabs__list button:hover{border-color:var(--accent);transform:translateX(3px)}
.tzc-tabs__list button.is-active{background:var(--deep);border-color:var(--deep);color:#fff;transform:translateX(6px)}
.tzc-tabs__panels{position:relative;min-height:380px}
.tzc-tab{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.tzc-tab figure{margin:0 0 16px;background:#fff;border-radius:10px;padding:8px;display:grid;place-items:center;max-height:260px;overflow:hidden}
.tzc-tab figure img{max-height:240px;width:auto}
.tzc-tab p{font-size:16px}
.tzc-js .tzc-tab{position:absolute;inset:0 auto auto 0;width:100%;opacity:0;transform:translateY(12px) scale(.98);visibility:hidden;transition:opacity .4s ease,transform .4s ease,visibility 0s .4s}
.tzc-js .tzc-tab.is-active{position:relative;opacity:1;transform:none;visibility:visible;transition:opacity .4s ease,transform .4s ease}
.tzc:not(.tzc-js) .tzc-tab+.tzc-tab{margin-top:14px}

/* Allarme */
.tzc-alarm{display:grid;grid-template-columns:auto minmax(0,1fr);gap:26px;align-items:start;padding:28px;border-radius:var(--r);background:#fff;border:2px solid var(--deep)}
.tzc-alarm__badge{position:relative;width:88px;height:88px;border-radius:999px;background:var(--deep);color:#fff;display:grid;place-items:center;font:700 30px/1 Roboto,sans-serif}
.tzc-alarm__badge::before,.tzc-alarm__badge::after{content:"";position:absolute;inset:0;border-radius:999px;border:2px solid var(--accent);animation:tzc-ring 2.6s ease-out infinite}
.tzc-alarm__badge::after{animation-delay:1.3s}
.tzc-alarm h2{font-size:24px;margin-bottom:8px}
.tzc-alarm p{font-size:16px}
.tzc-alarm__list{list-style:none!important;margin:0 0 14px!important;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}
.tzc-alarm__list li{position:relative;padding-left:22px;margin:0!important;font-size:15.5px}
.tzc-alarm__list li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border-radius:2px;background:var(--accent);transform:rotate(45deg)}
.tzc-alarm__time{font-weight:600;color:var(--deep);margin:0!important}

/* CTA */
.tzc-cta{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;background:linear-gradient(135deg,var(--surface),var(--soft));border:1px solid var(--line);border-radius:var(--r);padding:30px}
.tzc-cta h2{font-size:24px;margin-bottom:8px}
.tzc-cta p{font-size:16px;margin:0}
.tzc-link{font-weight:600;color:var(--accent);text-decoration:none;border-bottom:2px solid rgba(59,129,191,.3);transition:border-color .2s ease}
.tzc-link::after{content:" \2192"}
.tzc-link:hover{border-color:var(--accent)}
.tzc-btn{display:inline-block;padding:13px 26px;border-radius:999px;background:var(--accent);color:#fff!important;font-weight:600;text-decoration:none!important;white-space:nowrap;transition:transform .2s ease,background .2s ease}
.tzc-btn:hover{background:var(--deep);transform:translateY(-2px)}

/* Comparsa allo scroll */
.tzc-js .tzc-reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.tzc-js .tzc-reveal.is-in{opacity:1;transform:none}

@keyframes tzc-scan{0%{transform:translateY(-100%)}55%{transform:translateY(460%)}100%{transform:translateY(460%)}}
@keyframes tzc-pulse{0%{transform:scale(1);opacity:.85}100%{transform:scale(2.2);opacity:0}}
@keyframes tzc-ring{0%{transform:scale(1);opacity:.9}100%{transform:scale(1.6);opacity:0}}

@media (max-width:900px){
.tzc-explorer,.tzc-exam,.tzc-tabs,.tzc-cta,.tzc-alarm{grid-template-columns:1fr}
.tzc-tabs__list{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x mandatory}
.tzc-tabs__list button{scroll-snap-align:start}
.tzc-tabs__list button.is-active,.tzc-tabs__list button:hover{transform:none}
.tzc-tabs__panels{min-height:0}
.tzc-alarm__list{grid-template-columns:1fr}
.tzc-side li{grid-template-columns:1fr;gap:2px}
.tzc-spot em{display:none}
.tzc-switch{display:grid;width:100%}
.tzc-switch button{padding:11px 10px}
}
@media (prefers-reduced-motion:reduce){
.tzc *,.tzc *::before,.tzc *::after{animation:none!important;transition:none!important}
.tzc-scan__line{display:none}
.tzc-js .tzc-reveal{opacity:1;transform:none}
.tzc-steps{--p:1}
.tzc-step{background:#fff}
}