.lesson-view-switch{display:flex;gap:8px;flex-wrap:wrap;background:#e6f2f9;border:1px solid #bfd9e8;border-radius:18px;padding:7px;width:fit-content;margin:0 0 28px}
.lesson-view-switch button{border:0;border-radius:12px;background:transparent;color:#30536c;min-height:48px;padding:12px 22px;font:650 1rem/1.4 system-ui;cursor:pointer}
.lesson-view-switch button[aria-pressed=true]{background:#086ba9;color:white;box-shadow:0 4px 12px #086ba925}
.lesson-deck{--deck-accent:#086ba9;--deck-tint:#e8f6ff;margin:0 auto 70px;max-width:880px}
.deck-situazioni{--deck-accent:#b5432e;--deck-tint:#fff0e8}.deck-letture{--deck-accent:#79570b;--deck-tint:#fff3bf}
.deck-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 24px}.deck-heading h2{font:400 clamp(1.7rem,3.5vw,2.5rem)/1.2 Georgia,serif;margin:8px 0 12px;color:#243747}.deck-heading p{font:1rem/1.6 system-ui;color:#506575;margin:0}.deck-eyebrow{font:750 .8rem/1.4 system-ui;letter-spacing:.13em;color:var(--deck-accent)}
.deck-count{flex-shrink:0;border:1px solid #bfd9e8;border-radius:30px;padding:10px 16px;font:700 1rem/1.4 system-ui;color:#30536c;background:white;font-variant-numeric:tabular-nums}
.deck-track{display:flex;align-items:stretch;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:#8abbd6 transparent;border-radius:24px;padding:3px 0 16px;overscroll-behavior-x:contain}
.study-slide{display:flex;flex-direction:column;flex:0 0 100%;min-width:0;scroll-snap-align:start;scroll-snap-stop:always;border:1px solid #cadce7;border-top:5px solid var(--deck-accent);border-radius:24px;background:white;overflow:hidden;box-shadow:0 8px 14px #163e5410}
.study-slide-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:20px 30px;background:var(--deck-tint);color:var(--deck-accent);font:700 .875rem/1.5 system-ui}.study-slide-body{padding:36px 38px;flex:1}.deck-italian{font:400 clamp(1.65rem,3.5vw,2.6rem)/1.35 Georgia,serif;color:#203849;margin:0 0 28px;overflow-wrap:anywhere}
.deck-hints{display:grid;gap:12px}.deck-hints details{border:1px solid #cbdde9;border-radius:14px;background:#fbfdff;overflow:hidden}.deck-hints summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px 18px;color:#30536c;font:650 1rem/1.4 system-ui}.deck-hints summary::-webkit-details-marker{display:none}.deck-hints details[open] summary{border-bottom:1px solid #d6e5ee;background:var(--deck-tint)}.deck-hints details[open] summary span{transform:rotate(45deg)}.deck-hints details p{padding:16px 18px;margin:0;font:1.125rem/1.7 system-ui;color:#354e60;overflow-wrap:anywhere}.deck-hints small{display:block;padding:0 18px 16px;color:#506575;font:.875rem/1.5 system-ui}
.deck-example{margin-top:26px;padding-top:22px;border-top:1px solid #d6e5ee}.deck-example h3{font:700 .875rem/1.5 system-ui;color:var(--deck-accent);margin:0 0 12px}.deck-example .deck-italian{font-size:1.5rem;margin-bottom:18px}.study-slide-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e3edf3;padding:16px 30px;font:.875rem/1.4 system-ui;color:#506575}
.deck-navigation{display:flex;align-items:center;gap:20px;margin-top:20px}.deck-navigation button{display:flex;align-items:center;gap:10px;min-height:48px;padding:12px 20px;border:1px solid #bdd7e6;border-radius:14px;background:white;color:var(--deck-accent);font:700 1rem/1.4 system-ui;cursor:pointer}.deck-navigation button[data-deck-next]{background:var(--deck-accent);color:white;border-color:var(--deck-accent)}.deck-navigation button:disabled{opacity:.45;cursor:default}.deck-navigation progress{flex:1;min-width:30px;height:7px;border:0;border-radius:8px;overflow:hidden;background:#dbe9f2;accent-color:var(--deck-accent)}.deck-navigation progress::-webkit-progress-bar{background:#dbe9f2}.deck-navigation progress::-webkit-progress-value{background:var(--deck-accent)}.deck-navigation progress::-moz-progress-bar{background:var(--deck-accent)}.deck-tip{text-align:center;font:.875rem/1.6 system-ui;color:#506575}
.lesson-view-switch[hidden],.lesson-deck[hidden],#lesson-full[hidden]{display:none!important}.lesson-deck button:focus-visible,.lesson-deck summary:focus-visible,.deck-track:focus-visible,.lesson-view-switch button:focus-visible{outline:3px solid #bc452b;outline-offset:3px}
@media(max-width:560px){.lesson-view-switch{width:100%}.lesson-view-switch button{flex:1;padding:12px 10px}.deck-heading{gap:10px;align-items:flex-start}.deck-count{padding:8px 10px}.study-slide-body{padding:26px 20px}.study-slide-top,.study-slide-footer{padding:16px 20px}.deck-track{gap:16px}.deck-navigation{gap:12px}.deck-navigation button{padding:12px 14px}.deck-heading p{font-size:.9375rem}}
@media(prefers-reduced-motion:reduce){.deck-track{scroll-behavior:auto}}