:root {
  --bg: #fbf4ea;
  --bg2: #f4e9d9;
  --card: #ffffff;
  --ink: #1d3557;
  --muted: #6c7a90;
  --line: #eadfcd;
  --accent: #e8676b;
  --accent-d: #cf4f54;
  --teal: #1fa89c;
  --gold: #ffb703;
  --ok: #2fa56b;
  --shadow: 0 8px 28px rgba(29, 53, 87, 0.1);
  --shadow-s: 0 2px 10px rgba(29, 53, 87, 0.08);
  --r: 22px;
  --canvas1: #fff9f0;
  --canvas2: #f3e4cf;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17141b;
    --bg2: #1e1a24;
    --card: #232029;
    --ink: #f3ede4;
    --muted: #a69fb2;
    --line: #35303d;
    --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
    --shadow-s: 0 2px 10px rgba(0, 0, 0, 0.35);
    --canvas1: #2b2632;
    --canvas2: #1c1922;
  }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; padding: 0; }
h1, h2, h3, p { margin: 0; }
.ico { display: block; flex: none; }

#app { min-height: 100%; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 10px;
  padding: calc(var(--safe-t) + 10px) 16px 10px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -0.02em; }
.topbar .brand small { display: block; font-weight: 600; font-size: 11.5px; color: var(--muted); letter-spacing: 0; margin-top: -2px; }
.topbar .sp { flex: 1; }
.iconbtn {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  background: var(--card); box-shadow: var(--shadow-s); color: var(--ink);
}
.iconbtn:active { transform: scale(0.94); }
.topbar .title { font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }

main { flex: 1; padding: 14px 16px calc(96px + var(--safe-b)); max-width: 980px; width: 100%; margin: 0 auto; }
main.viewing { padding-bottom: calc(24px + var(--safe-b)); }

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; justify-content: center; gap: 6px;
  padding: 8px 14px calc(8px + var(--safe-b));
  background: color-mix(in srgb, var(--card) 90%, transparent);
  backdrop-filter: saturate(1.5) blur(16px);
  -webkit-backdrop-filter: saturate(1.5) blur(16px);
  border-top: 1px solid var(--line);
}
.tabbar button {
  flex: 1; max-width: 190px; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 7px 4px; border-radius: 16px; color: var(--muted); font-size: 11.5px; font-weight: 700;
}
.tabbar button.on { color: var(--accent-d); background: color-mix(in srgb, var(--accent) 13%, transparent); }

h2.sec { font-size: 13px; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted); font-weight: 800; margin: 22px 4px 10px; }
.lead { color: var(--muted); font-size: 15px; margin: 4px 4px 14px; }

/* --- hero --- */
.hero {
  display: block; width: 100%; text-align: left; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #f58a8d, #e8676b 55%, #d94f6a);
  color: #fff; border-radius: 26px; padding: 20px 20px 22px; box-shadow: 0 14px 34px rgba(232, 103, 107, 0.35);
}
.hero::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 190px; height: 190px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(255,255,255,.35), rgba(255,255,255,0) 70%);
}
.hero small { font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; font-size: 11.5px; opacity: 0.9; }
.hero h1 { font-size: 26px; line-height: 1.12; margin: 6px 0 12px; font-weight: 800; letter-spacing: -0.02em; }
.hero .go { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--accent-d); font-weight: 800; padding: 10px 16px; border-radius: 999px; }

/* --- liste --- */
.cards { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards { grid-template-columns: 1fr 1fr; } }
.lcard {
  display: flex; align-items: center; gap: 14px; text-align: left; width: 100%;
  background: var(--card); border-radius: var(--r); padding: 14px 16px; box-shadow: var(--shadow-s); border: 1px solid transparent;
}
.lcard:active { transform: scale(0.985); }
.lcard .sym {
  width: 54px; height: 54px; flex: none; border-radius: 18px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--accent) 14%, var(--card)); color: var(--accent-d);
}
.lcard .sym.t { background: color-mix(in srgb, var(--teal) 16%, var(--card)); color: var(--teal); }
.lcard .meta { flex: 1; min-width: 0; }
.lcard .meta b { display: block; font-size: 17px; letter-spacing: -0.01em; }
.lcard .meta span { display: block; font-size: 13.5px; color: var(--muted); margin-top: 1px; }
.lcard .state { flex: none; color: var(--muted); }
.lcard .done { color: var(--ok); }
.lcard .bar { height: 5px; border-radius: 5px; background: var(--line); margin-top: 8px; overflow: hidden; }
.lcard .bar i { display: block; height: 100%; background: var(--accent); border-radius: 5px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 700;
  background: var(--bg2); color: var(--muted);
}
.chip.lvl1 { background: #e3f5ea; color: #1f7a4d; }
.chip.lvl2 { background: #fff1d6; color: #9a6400; }
.chip.lvl3 { background: #fde1e1; color: #b13a3f; }
@media (prefers-color-scheme: dark) {
  .chip.lvl1 { background: #1d3a2c; color: #7bd7a4; }
  .chip.lvl2 { background: #3e3216; color: #ffd27a; }
  .chip.lvl3 { background: #402124; color: #ff9fa3; }
}
.filters { display: flex; gap: 8px; overflow-x: auto; padding: 2px 4px 8px; margin: 0 -4px; scrollbar-width: none; }
.filters::-webkit-scrollbar { display: none; }
.filters button { flex: none; padding: 8px 15px; border-radius: 999px; background: var(--card); box-shadow: var(--shadow-s); font-weight: 700; font-size: 14px; }
.filters button.on { background: var(--ink); color: var(--bg); }

/* --- visualizzatore --- */
.lesson { display: grid; gap: 12px; }
@media (min-width: 860px) and (orientation: landscape) {
  .lesson { grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr); align-items: start; }
  .viewer { height: min(76vh, 640px) !important; position: sticky; top: 76px; }
}
.viewer {
  position: relative; border-radius: 26px; overflow: hidden; height: clamp(300px, 46vh, 520px);
  background: radial-gradient(120% 90% at 30% 10%, var(--canvas1), var(--canvas2));
  box-shadow: var(--shadow); touch-action: none; user-select: none; -webkit-user-select: none;
}
.viewer canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.viewer .tools { position: absolute; right: 10px; top: 10px; display: flex; gap: 8px; }
.viewer .tools button, .viewer .badge {
  height: 38px; min-width: 38px; border-radius: 13px; display: grid; place-items: center; padding: 0 10px;
  background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-s); font-size: 12px; font-weight: 800; color: var(--ink);
}
.viewer .tools button { display: flex; align-items: center; gap: 6px; justify-content: center; }
.viewer .tools button.on { color: var(--accent-d); }
.viewer .badge { position: absolute; left: 10px; top: 10px; display: flex; gap: 6px; align-items: center; }
.viewer .hint { position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%); font-size: 12.5px; font-weight: 700; padding: 6px 12px; border-radius: 12px; background: color-mix(in srgb, var(--ink) 82%, transparent); color: var(--bg); pointer-events: none; opacity: 0; transition: opacity .3s; white-space: nowrap; }

.panel { background: var(--card); border-radius: 26px; padding: 16px 16px 14px; box-shadow: var(--shadow); }
.panel .stepno { font-size: 12px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-d); }
.panel h2 { font-size: 22px; line-height: 1.15; letter-spacing: -0.02em; margin: 3px 0 8px; font-weight: 800; }
.panel p.d { font-size: 16.5px; line-height: 1.5; }
.tip {
  margin-top: 12px; padding: 11px 13px; border-radius: 16px; font-size: 14.5px; display: flex; gap: 10px;
  background: color-mix(in srgb, var(--gold) 17%, var(--card)); border: 1px solid color-mix(in srgb, var(--gold) 38%, transparent);
}
.tip b { color: #9a6400; }
@media (prefers-color-scheme: dark) { .tip b { color: #ffd27a; } }
.dots { display: flex; gap: 6px; justify-content: center; margin: 14px 0 12px; flex-wrap: wrap; }
.dots button { width: 11px; height: 11px; border-radius: 50%; background: var(--line); transition: all .25s; }
.dots button.seen { background: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.dots button.on { background: var(--accent); width: 26px; border-radius: 8px; }
.ctrl { display: flex; align-items: center; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 18px; font-weight: 800;
  padding: 0 18px; height: 52px; background: var(--bg2); color: var(--ink);
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(232, 103, 107, 0.35); flex: 1; }
.btn.ghost { width: 52px; padding: 0; }
.btn[disabled] { opacity: 0.35; pointer-events: none; }
.btn.small { height: 40px; padding: 0 14px; border-radius: 14px; font-size: 14px; }
.row { display: flex; gap: 10px; align-items: center; }
.sub { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; }
.seg { display: inline-flex; background: var(--bg2); border-radius: 12px; padding: 3px; gap: 2px; }
.seg button { padding: 6px 11px; border-radius: 10px; font-size: 13px; font-weight: 800; color: var(--muted); }
.seg button.on { background: var(--card); color: var(--ink); box-shadow: var(--shadow-s); }

/* --- progetti / dettagli --- */
.pcard { display: block; width: 100%; text-align: left; background: var(--card); border-radius: var(--r); box-shadow: var(--shadow-s); overflow: hidden; }
.pcard .pic { height: 104px; display: grid; place-items: center; color: #fff; position: relative; }
.pcard .pic svg { width: 62px; height: 62px; opacity: .95; }
.pcard .body { padding: 12px 15px 15px; }
.pcard .body b { font-size: 17.5px; letter-spacing: -0.01em; display: block; }
.pcard .body span.s { color: var(--muted); font-size: 14px; display: block; margin-top: 2px; }
.box { background: var(--card); border-radius: var(--r); padding: 16px; box-shadow: var(--shadow-s); margin-bottom: 12px; }
.box h3 { font-size: 15px; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 8px; }
.box ul { margin: 0; padding-left: 20px; }
.box li { margin: 4px 0; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 15px; }
.kv dt { color: var(--muted); font-weight: 700; }
.kv dd { margin: 0; }
.rowitem { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-top: 1px solid var(--line); }
.rowitem:first-child { border-top: 0; }
.rowitem .num {
  flex: none; min-width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; font-weight: 800;
  background: var(--bg2); color: var(--ink); font-size: 14px; padding: 0 8px;
}
.rowitem.done .num { background: var(--ok); color: #fff; }
.rowitem.done .txt { opacity: 0.55; }
.rowitem .txt { flex: 1; min-width: 0; }
.rowitem .txt .t { font-size: 15.5px; }
.rowitem .txt .cnt { font-size: 13px; color: var(--muted); margin-top: 2px; font-weight: 700; }
.linkchip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 8px; border-radius: 999px; font-size: 12.5px; font-weight: 800; background: color-mix(in srgb, var(--teal) 14%, var(--card)); color: var(--teal); margin: 6px 6px 0 0; }
.linkchip .ico { width: 16px; height: 16px; }
.check { flex: none; width: 34px; height: 34px; border-radius: 12px; border: 2px solid var(--line); display: grid; place-items: center; color: transparent; }
.rowitem.done .check { background: var(--ok); border-color: var(--ok); color: #fff; }

table.gl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.gl th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); padding: 4px 6px 8px; }
table.gl td { padding: 9px 6px; border-top: 1px solid var(--line); vertical-align: middle; }
table.gl td:first-child { width: 44px; }
.big { font-size: 64px; font-weight: 800; letter-spacing: -0.04em; text-align: center; line-height: 1; font-variant-numeric: tabular-nums; }
.counter { display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 8px 0 4px; }
.counter .row { gap: 16px; }
.counter .btn.round { width: 84px; height: 84px; border-radius: 50%; font-size: 34px; }
textarea, input[type=text] {
  width: 100%; border: 1.5px solid var(--line); background: var(--bg); color: var(--ink); border-radius: 16px; padding: 12px 14px; font: inherit; resize: vertical;
}
textarea:focus, input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.toast { position: fixed; left: 50%; bottom: calc(100px + var(--safe-b)); transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 14px; font-weight: 700; z-index: 60; box-shadow: var(--shadow); }
.sheet-back { position: fixed; inset: 0; background: rgba(10, 10, 20, 0.45); z-index: 50; display: flex; align-items: flex-end; justify-content: center; }
.sheet { background: var(--bg); width: 100%; max-width: 560px; border-radius: 28px 28px 0 0; padding: 20px 18px calc(24px + var(--safe-b)); max-height: 88vh; overflow: auto; }
.sheet h2 { font-size: 22px; margin-bottom: 12px; letter-spacing: -0.02em; }
.setrow { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; border-top: 1px solid var(--line); }
.setrow:first-of-type { border-top: 0; }
.setrow b { display: block; }
.setrow span.s { color: var(--muted); font-size: 13.5px; }
.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
a { color: var(--accent-d); }
.viewing .tabbar { display: none; }

.scrub{width:100%;margin:2px 0 10px;accent-color:var(--accent,#e8676b);height:28px}

.foto{padding:4px 16px 90px;max-width:640px;margin:0 auto}
.foto h1{font-size:24px;margin:8px 0 6px}
.muted{color:var(--muted)}
.uploader{border:2px dashed color-mix(in srgb,var(--accent) 55%,transparent);border-radius:20px;min-height:170px;display:flex;align-items:center;justify-content:center;margin:14px 0;cursor:pointer;overflow:hidden;background:var(--card)}
.uploader img{width:100%;max-height:360px;object-fit:contain;display:block}
.uploader #ph{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--accent-d);font-weight:700}
.foto textarea,.foto input#code{width:100%;box-sizing:border-box;border:1.5px solid var(--line,#ddd);border-radius:14px;padding:12px;font:inherit;background:var(--card);color:var(--ink);margin-bottom:10px}
.foto details{margin:2px 0 12px;color:var(--muted);font-size:14px}
.btn.wide{width:100%}
.btn:disabled{opacity:.5}
.verdict{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:18px;margin:16px 0}
.verdict p{margin:4px 0 0}
.verdict .vi{flex:none;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff}
.verdict.yes{background:color-mix(in srgb,#2a9d8f 16%,var(--card))}.verdict.yes .vi{background:#2a9d8f}
.verdict.no{background:color-mix(in srgb,#e8676b 16%,var(--card))}.verdict.no .vi{background:#e8676b}
.foto h3{margin:20px 0 8px}
.plain{padding-left:18px;margin:4px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.chips .chip{display:inline-flex;gap:6px;align-items:center;text-decoration:none}
.plan{display:flex;flex-direction:column;gap:10px}
.pstep{display:flex;gap:12px;background:var(--card);border-radius:16px;padding:12px}
.pstep.done{opacity:.55}
.pstep .pb p{margin:6px 0}
.pck{flex:none;position:relative;width:34px;height:34px}
.pck input{position:absolute;inset:0;opacity:0;width:100%;height:100%;margin:0}
.pck span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:color-mix(in srgb,var(--accent) 18%,transparent);font-weight:800}
.pck input:checked+span{background:#2a9d8f;color:#fff}
.learn{display:inline-flex;gap:4px;align-items:center;font-weight:700;color:var(--accent-d);text-decoration:none;font-size:14px}
.loading{display:flex;flex-direction:column;align-items:center;padding:24px;gap:10px;text-align:center}
.spin{width:34px;height:34px;border-radius:50%;border:4px solid color-mix(in srgb,var(--accent) 25%,transparent);border-top-color:var(--accent);animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.x{display:inline-grid;padding:6px}
.uploader [hidden]{display:none!important}

.seg.lvl{display:flex;margin:12px 0 4px}.seg.lvl button{flex:1}
.small{font-size:13px;margin:4px 2px 8px}
.sw{display:inline-block;border-radius:50%;border:2px solid rgba(0,0,0,.18);vertical-align:-2px;flex:none}
.cstrip{display:flex;height:14px;border-radius:8px;overflow:hidden;margin:10px 0;border:1px solid rgba(0,0,0,.1)}
.cstrip i{display:block;min-width:6px}
.pstep{border-left:6px solid var(--pc,transparent)}
.chg{display:flex;gap:10px;align-items:flex-start;background:color-mix(in srgb,#ffb703 22%,var(--card));border-radius:14px;padding:10px 12px;margin:6px 0}
.chg p{margin:3px 0}
.verdict.warn{background:color-mix(in srgb,#ffb703 22%,var(--card));margin:0 0 12px}