:root{
  --bg:#f1e4c6;--paper:#fff8ea;--paper-edge:#e6d8bc;--ink:#2a241e;--ink-soft:#6e6255;--ink-faint:#7d6e58;
  --accent:#ea0029;--cta:#c40021;--cta-hover:#a3001b;--shadow:0 1px 2px rgba(74,50,20,.08),0 10px 30px rgba(74,50,20,.10);
  --serif:"Newsreader","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Titillium Web",-apple-system,"Segoe UI",Geneva,sans-serif;
  --hand:"Caveat","Bradley Hand","Segoe Print",cursive;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#120e0a;--paper:#1f1913;--paper-edge:#3a2d1f;--ink:#f1e6d3;--ink-soft:#b9ab94;--ink-faint:#9a8c77;
  --accent:#ff5568;--cta:#c40021;--cta-hover:#a3001b;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
}}
*{box-sizing:border-box}
html{color-scheme:light dark;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;min-height:100vh;min-height:100dvh;
  padding:max(20px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(36px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left))}
main{max-width:32rem;margin:0 auto}

.lettera{background:var(--paper);border:1px solid var(--paper-edge);border-radius:18px;box-shadow:var(--shadow);
  padding:34px 26px 30px;animation:sale .6s ease-out both}
@keyframes sale{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.lettera,.tesi{animation:none}}

.data{margin:0;color:var(--ink-faint);font-size:.85rem;letter-spacing:.04em}
h1{margin:14px 0 0;font-family:var(--serif);font-weight:500;font-size:clamp(2rem,9.5vw,2.7rem);line-height:1.15;letter-spacing:-.01em;overflow-wrap:anywhere}
.pensiero{margin-top:22px;font-family:var(--serif);font-size:1.22rem;line-height:1.62}
.pensiero p{margin:0 0 1em}
.firma{margin:18px 0 0;font-family:var(--hand);font-weight:500;font-size:2.3rem;line-height:1;color:var(--accent);transform:rotate(-2deg);transform-origin:left}

.ps{margin:30px 0 0;padding-top:24px;border-top:1px dashed var(--paper-edge)}
.ps p{margin:0 0 14px;font-family:var(--serif);font-style:italic;font-size:1.1rem;color:var(--ink-soft)}
.player{display:flex;align-items:center;gap:14px}
.player audio{width:100%}
.player audio:not([controls]){display:none}
.player .play{flex:none;width:56px;height:56px;border-radius:50%;border:0;background:var(--cta);color:#fff;display:grid;place-items:center;cursor:pointer;-webkit-tap-highlight-color:transparent}
.player .play:active{background:var(--cta-hover)}
.player .play:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.player .play svg{width:22px;height:22px;fill:currentColor}
.player .play .i-pausa{display:none}
.player.suona .play .i-play{display:none}
.player.suona .play .i-pausa{display:block}
.player .barra{flex:1;min-width:0}
.player input[type=range]{width:100%;margin:0;height:32px;background:transparent;-webkit-appearance:none;appearance:none;touch-action:none}
.player input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:3px;background:linear-gradient(to right,var(--accent) var(--p,0%),var(--paper-edge) var(--p,0%))}
.player input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;margin-top:-7.5px;border-radius:50%;background:var(--accent);border:2px solid var(--paper)}
.player input[type=range]::-moz-range-track{height:5px;border-radius:3px;background:var(--paper-edge)}
.player input[type=range]::-moz-range-progress{height:5px;border-radius:3px;background:var(--accent)}
.player input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid var(--paper)}
.player .tempo{display:block;margin-top:-2px;color:var(--ink-faint);font-size:.82rem;font-variant-numeric:tabular-nums}

.tesi{margin:34px 8px 0;text-align:center;animation:sale .6s .15s ease-out both}
.tesi .intro{margin:0;color:var(--ink-soft);font-size:.98rem}
.tesi .titolo{margin:10px 0 0;font-family:var(--serif);font-style:italic;font-size:1.3rem;line-height:1.3}
.btn{display:inline-block;margin-top:20px;padding:14px 30px;background:var(--cta);color:#fff;border-radius:999px;font-weight:600;font-size:1.05rem;text-decoration:none;-webkit-tap-highlight-color:transparent}
.btn:active{background:var(--cta-hover)}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.nota{margin:10px 0 0;color:var(--ink-faint);font-size:.82rem}