:root {
  --bg: #0b0d12;
  --panel: #13161f;
  --panel-2: #1a1e2b;
  --border: #2a3042;
  --text: #e8ecf4;
  --muted: #9aa3b8;
  --accent: #7c5cff;
  --accent-2: #00d4aa;
  --accent-3: #ff6b6b;
  --accent-4: #ffd166;
  --accent-5: #3b82f6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
}

.app { min-height: 100vh; display: flex; flex-direction: column; }

.hero {
  padding: 48px 24px 32px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(124, 92, 255, 0.18), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 212, 170, 0.10), transparent 40%);
}

.hero__badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.15);
  border: 1px solid rgba(124, 92, 255, 0.35);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.hero h1 { margin: 0 0 12px; font-size: clamp(1.8rem, 5vw, 3rem); font-weight: 800; }
.hero h1 em { color: var(--accent-2); font-style: normal; }
.hero__subtitle { margin: 0 auto; max-width: 720px; color: var(--muted); font-size: 1.05rem; }

main {
  flex: 1;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.card h2, .card h3 { margin-top: 0; }

.control-panel { display: flex; flex-direction: column; gap: 18px; }

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
}

.field { display: flex; flex-direction: column; gap: 6px; min-width: 100px; flex: 1; }
.field--grow { flex: 3; min-width: 220px; }
.field label { font-size: 0.78rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.field input[type="text"], .field input[type="number"] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 0.95rem;
  outline: none;
  transition: border-color .2s;
}
.field input:focus { border-color: var(--accent); }
.field input[type="range"] { width: 100%; accent-color: var(--accent); cursor: pointer; }

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.92rem;
  transition: transform .05s, background .2s, border-color .2s;
}
.btn:hover:not(:disabled) { background: #23283a; border-color: var(--accent); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--primary:hover:not(:disabled) { background: #6a49e8; }
.btn--ghost { background: transparent; }

.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.toggle input { accent-color: var(--accent-2); width: 18px; height: 18px; }
.toggle__label { font-size: 0.9rem; color: var(--muted); }

.gamify { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: center; }
.gamify__score { display: flex; gap: 14px; flex-wrap: wrap; }
.score-box {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 18px;
  min-width: 110px;
  text-align: center;
}
.score-box__label { display: block; font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.score-box__value { display: block; font-size: 1.4rem; font-weight: 800; color: var(--accent-2); }

.badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge--locked { opacity: .55; filter: grayscale(1); }
.badge--unlocked { background: rgba(0, 212, 170, 0.12); border-color: rgba(0, 212, 170, 0.45); color: var(--accent-2); }

.generation-track h2 { margin-bottom: 12px; }
.sequence {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--mono);
  font-size: 1.15rem;
  min-height: 46px;
}
.token {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  transition: all .25s ease;
}
.token--input { border-color: rgba(124, 92, 255, 0.4); }
.token--generated { border-color: rgba(0, 212, 170, 0.55); color: var(--accent-2); }
.token--new { animation: popIn .35s ease; background: rgba(0, 212, 170, 0.15); }
.token--cursor { color: var(--accent); animation: blink 1s infinite; padding: 0 2px; }

@keyframes popIn {
  0% { transform: scale(0.7); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

.stages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 22px;
}
.stage--wide { grid-column: 1 / -1; }
.stage h3 { margin-bottom: 6px; color: var(--accent-4); }
.stage__hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 16px; }
.stage__body { min-height: 120px; }

.viz-grid { display: flex; flex-wrap: wrap; gap: 14px; }
.viz-token {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  min-width: 70px;
}
.viz-token__id { font-size: .65rem; color: var(--muted); }
.viz-token__text { font-family: var(--mono); font-weight: 700; font-size: 1rem; }

.vectors { display: flex; flex-direction: column; gap: 10px; }
.vector-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel-2);
  border-radius: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
}
.vector-row__label {
  width: 70px;
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--muted);
  flex-shrink: 0;
}
.vector-row__bars { display: flex; gap: 3px; flex: 1; height: 26px; align-items: stretch; }
.bar {
  flex: 1;
  border-radius: 3px;
  min-width: 4px;
  position: relative;
  transition: transform .2s;
}
.bar:hover { transform: scaleY(1.15); z-index: 2; }
.bar--neg { background: var(--accent-3); }
.bar--pos { background: var(--accent-2); }
.bar::after {
  content: attr(title);
  position: absolute;
  bottom: 120%;
  left: 50%;
  transform: translateX(-50%);
  background: #000;
  color: #fff;
  padding: 3px 6px;
  border-radius: 5px;
  font-size: .65rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.bar:hover::after { opacity: 1; }

.heatmap-wrap { overflow-x: auto; }
.heatmap {
  display: grid;
  gap: 3px;
  margin-top: 10px;
}
.heatmap__cell {
  width: 38px;
  height: 38px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .65rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,.5);
  position: relative;
}
.heatmap__cell--masked { background: #252a3a !important; opacity: .35; }
.heatmap__labels {
  display: flex;
  gap: 3px;
  margin-bottom: 4px;
  padding-left: 42px;
}
.heatmap__label {
  width: 38px;
  text-align: center;
  font-size: .65rem;
  color: var(--muted);
}
.heatmap__row-label {
  width: 42px;
  display: flex;
  align-items: center;
  font-size: .72rem;
  color: var(--muted);
}

.attention-head-tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.head-tab {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: .82rem;
  font-weight: 600;
}
.head-tab--active { border-color: var(--accent); color: var(--text); background: rgba(124,92,255,.12); }

.ffn-viz { display: flex; flex-direction: column; gap: 12px; }
.ffn-step { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ffn-step__op {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: .85rem;
}

.output-viz { display: flex; flex-direction: column; gap: 16px; }
.prob-chart { display: flex; flex-direction: column; gap: 6px; }
.prob-row {
  display: grid;
  grid-template-columns: 110px 1fr 50px;
  align-items: center;
  gap: 10px;
  background: var(--panel-2);
  border-radius: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
}
.prob-row__label { font-family: var(--mono); font-size: .82rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.prob-bar-bg { background: rgba(255,255,255,.06); border-radius: 6px; height: 18px; position: relative; overflow: hidden; }
.prob-bar-fill { height: 100%; border-radius: 6px; transition: width .5s ease; }
.prob-row__value { text-align: right; font-size: .78rem; color: var(--muted); }
.prob-row--top .prob-bar-fill { background: var(--accent); }
.prob-row--selected { border-color: var(--accent-2); }
.prob-row--selected .prob-bar-fill { background: var(--accent-2); }
.prob-row--filtered { opacity: .35; }

.sampling-summary {
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 12px;
  font-size: .9rem;
}

.quiz { border-color: rgba(255, 209, 102, 0.35); }
.quiz h3 { color: var(--accent-4); }
.quiz__options { display: flex; flex-direction: column; gap: 8px; margin: 14px 0; }
.quiz__option {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font-size: .95rem;
  transition: border-color .2s, background .2s;
}
.quiz__option:hover { border-color: var(--accent); }
.quiz__option--correct { border-color: var(--accent-2); background: rgba(0,212,170,.10); }
.quiz__option--wrong { border-color: var(--accent-3); background: rgba(255,107,107,.10); }
.quiz__feedback { font-weight: 700; min-height: 22px; }

.term { border-bottom: 1px dashed var(--accent); cursor: help; color: var(--accent-4); }

.lab h2 { margin-bottom: 14px; }
.lab-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.lab__box { background: var(--panel-2); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.lab__box--wide { grid-column: 1 / -1; }
.lab__box h3 { margin-top: 0; color: var(--accent-2); font-size: 1rem; }
.lab__output { background: var(--panel); border: 1px dashed var(--border); border-radius: 8px; padding: 12px; font-size: 0.92rem; min-height: 50px; }
.lab__chart { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.temp-compare { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.temp-compare__title { font-size: 0.78rem; color: var(--muted); font-weight: 700; margin-bottom: 6px; }
.temp-compare__row { display: grid; grid-template-columns: 70px 1fr 40px; align-items: center; gap: 8px; margin-bottom: 4px; }
.temp-compare__label { font-family: var(--mono); font-size: 0.75rem; }
.temp-compare__bg { background: rgba(255,255,255,.06); border-radius: 4px; height: 12px; overflow: hidden; }
.temp-compare__fill { height: 100%; border-radius: 4px; }
.temp-compare__value { font-size: 0.7rem; color: var(--muted); text-align: right; }

.legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 12px; }
.legend__item { display: inline-flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--muted); }
.legend__bar { width: 34px; height: 14px; border-radius: 4px; display: inline-block; }

.deep-research summary { cursor: pointer; font-size: 1.2rem; font-weight: 700; }
.deep-research summary h2 { display: inline; margin: 0; font-size: 1.2rem; }
.research-body { margin-top: 18px; }
.research-body h3 { color: var(--accent-2); margin-top: 22px; }
.research-body p, .research-body li { color: #c9cedd; }
.research-body code {
  background: rgba(124, 92, 255, .12);
  padding: 2px 6px;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: .9em;
}
.formula {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  font-family: var(--mono);
  font-size: 1.1rem;
  text-align: center;
  margin: 14px 0;
  color: var(--accent-4);
}
.references { font-size: .9rem; color: var(--muted); }

.footer {
  text-align: center;
  padding: 28px 24px;
  color: var(--muted);
  font-size: .85rem;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}

.stage--active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.stage--glow { animation: glow .8s ease; }
@keyframes glow {
  0% { box-shadow: 0 0 0 0 rgba(124,92,255,.5); }
  100% { box-shadow: 0 0 0 12px rgba(124,92,255,0); }
}

/* ---------- Selettore motore Didattico / Modello reale ---------- */
.engine-row { align-items: flex-end; }
.engine-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--panel-2); }
.engine-btn {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background .2s, color .2s;
}
.engine-btn:hover { color: var(--text); }
.engine-btn--active { background: var(--accent); color: #fff; }
.engine-btn + .engine-btn { border-left: 1px solid var(--border); }
.engine-switch { flex-wrap: wrap; }
.field--model select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
}
.field--model select:focus { border-color: var(--accent); }

.engine-note {
  margin: 4px 0 0;
  padding: 10px 14px;
  background: rgba(124, 92, 255, 0.08);
  border: 1px solid rgba(124, 92, 255, 0.25);
  border-radius: 10px;
  font-size: 0.86rem;
  color: var(--muted);
}
.engine-note strong { color: var(--text); }
body.mode-real .engine-note { background: rgba(0, 212, 170, 0.08); border-color: rgba(0, 212, 170, 0.28); }

/* ---------- Loader del modello reale ---------- */
.model-loader { margin-top: 12px; }
.model-loader__text { font-family: var(--mono); font-size: 0.82rem; color: var(--accent-2); margin-bottom: 6px; }
.model-loader__bar { height: 8px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.model-loader__fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s ease; }
.model-loader--error .model-loader__text { color: var(--accent-3); }
.model-loader--error .model-loader__fill { background: var(--accent-3); }

/* ---------- Note "non disponibile in modalità reale" ---------- */
.real-note {
  padding: 14px 16px;
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}
.real-note strong { color: var(--text); }
.real-note__link {
  background: transparent;
  border: 0;
  color: var(--accent-2);
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  font-size: inherit;
  text-decoration: underline;
}
.token--raw { opacity: 0.75; font-style: italic; }

/* ==================== Vista Semplice ↔ Tecnica ==================== */
.mode-switch {
  display: inline-flex;
  margin-top: 22px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-2);
  padding: 4px;
  gap: 4px;
}
.mode-switch__btn {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background .2s, color .2s;
}
.mode-switch__btn:hover { color: var(--text); }
.mode-switch__btn--active { background: var(--accent); color: #fff; }

#techView { display: none; }
body.view-tech #techView { display: block; }
body.view-tech #simpleView { display: none; }

/* ==================== Gioco "Tu contro l'IA" ==================== */
.simple-hero { background: radial-gradient(circle at 100% 0%, rgba(0,212,170,.10), transparent 55%), var(--panel); }
.simple-hero h2, .simple-dials h2, .simple-honest h2, .simple-cta p { margin-top: 0; }
.simple-lead { color: var(--muted); font-size: 1.02rem; max-width: 760px; }
.simple-lead em { color: var(--accent-2); font-style: normal; font-weight: 600; }

.scoreboard {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin: 18px 0 8px;
}
.scoreboard__item {
  display: flex; flex-direction: column; align-items: center;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 16px; min-width: 78px;
  font-weight: 800; font-size: 1.25rem; color: var(--accent-2);
}
.scoreboard__label { font-size: .66rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 2px; }

.guess { margin-top: 8px; }
.guess__sentence {
  font-size: clamp(1.1rem, 3.2vw, 1.5rem); font-weight: 700; line-height: 1.5;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 14px; padding: 18px 20px;
}
.guess__sentence .blank {
  display: inline-block; min-width: 90px; text-align: center;
  color: var(--accent); border-bottom: 3px dashed var(--accent);
}
.guess__hint { color: var(--muted); font-weight: 600; margin: 14px 0 8px; }
.guess__options { display: flex; flex-wrap: wrap; gap: 10px; }
.guess-opt {
  background: var(--panel-2); color: var(--text);
  border: 1.5px solid var(--border); border-radius: 999px;
  padding: 11px 20px; font-family: var(--mono); font-size: 1rem; font-weight: 700;
  cursor: pointer; transition: transform .05s, border-color .2s, background .2s;
}
.guess-opt:hover:not(:disabled) { border-color: var(--accent); background: #23283a; }
.guess-opt:active:not(:disabled) { transform: translateY(1px); }
.guess-opt:disabled { cursor: default; opacity: .85; }
.guess-opt--chosen { border-color: var(--accent-4); }
.guess-opt--top { background: rgba(0,212,170,.15); border-color: var(--accent-2); color: var(--accent-2); }

.guess__reveal { margin-top: 18px; }
.guess-verdict { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; }
.guess-verdict strong { color: var(--accent-2); }
.guess-caption { color: var(--muted); font-size: .85rem; margin: 0 0 8px; }
.guess-bar { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; }
.guess-bar__label { flex: 0 0 130px; font-family: var(--mono); font-weight: 700; }
.guess-bar__track { flex: 1; height: 22px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.guess-bar__fill { display: block; height: 100%; background: var(--accent); border-radius: 8px; transition: width .5s ease; }
.guess-bar--top .guess-bar__fill { background: var(--accent-2); }
.guess-bar--top .guess-bar__label { color: var(--accent-2); }
.guess-bar--chosen .guess-bar__label::after { content: ' ← tu'; color: var(--accent-4); font-size: .72rem; font-weight: 700; }
.guess-bar__val { flex: 0 0 48px; text-align: right; font-family: var(--mono); font-weight: 700; color: var(--muted); }

.guess__controls { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.guess__why {
  margin-top: 14px; padding: 14px 16px; line-height: 1.6;
  background: rgba(124,92,255,.08); border: 1px solid rgba(124,92,255,.25); border-radius: 12px;
  color: var(--muted); font-size: .94rem;
}
.guess__why strong { color: var(--text); }

/* ==================== Le manopole (analogie) ==================== */
.simple-dials__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 14px; }
.dial-card { background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.dial-card__icon { font-size: 2rem; }
.dial-card h3 { margin: 8px 0 6px; font-size: 1.1rem; }
.dial-card p { color: var(--muted); font-size: .92rem; line-height: 1.55; margin: 0; }
.dial-card__tech { margin-top: 10px !important; font-size: .78rem !important; color: var(--muted); opacity: .7; }
.dial-card__tech em { color: var(--accent); font-style: normal; }

/* ==================== Onestà + CTA ==================== */
.simple-honest { border-left: 3px solid var(--accent-3); }
.simple-honest p { line-height: 1.65; }
.simple-honest__src { color: var(--muted); font-size: .8rem; opacity: .75; margin-bottom: 0; }
.simple-cta { text-align: center; background: radial-gradient(circle at 50% 0%, rgba(124,92,255,.12), transparent 60%); }
.simple-cta p { font-size: 1.05rem; }
.simple-cta .btn { margin-top: 6px; }

/* ==================== Story: "Guarda l'IA scrivere" ==================== */
.story { background: radial-gradient(circle at 0% 0%, rgba(124,92,255,.10), transparent 55%), var(--panel); }
.story__sentence {
  font-size: clamp(1.2rem, 3.6vw, 1.7rem); font-weight: 700; line-height: 1.6;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px 20px; min-height: 2.2em; margin-top: 6px;
}
.story__sentence .w-new { color: var(--accent-2); }
.story__sentence .cursor { color: var(--accent); font-weight: 400; }
.story__sentence .blank { display: inline-block; min-width: 46px; text-align: center; color: var(--accent); border-bottom: 3px dashed var(--accent); }
.story__caption .blank { display: inline-block; padding: 0 6px; color: var(--accent); border-bottom: 2px dashed var(--accent); }
.story__phases { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 4px 0 16px; font-size: .9rem; }
.story__phases span[data-phase] { padding: 6px 13px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); font-weight: 700; transition: background .2s, color .2s, border-color .2s; }
.story__phases span[data-phase] strong { color: var(--accent); margin-right: 3px; }
.story__phases span[data-phase].on { background: var(--accent); color: #fff; border-color: var(--accent); }
.story__phases span[data-phase].on strong { color: #fff; }
.story__phasesep { color: var(--muted); }
.story__phaseloop { color: var(--muted); font-size: .82rem; font-style: italic; }
.story__caption { font-size: 1.05rem; line-height: 1.6; margin: 16px 0 10px; min-height: 2.4em; }
.story__controls { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.story__dots { display: flex; gap: 7px; margin-top: 16px; }
.story__dots span { width: 9px; height: 9px; border-radius: 999px; background: var(--border); transition: background .2s; }
.story__dots span.on { background: var(--accent); }

/* ==================== Passo-passo manuale ==================== */
.btn--pulse { animation: btnpulse 1.4s ease-in-out infinite; box-shadow: 0 0 0 0 rgba(0,212,170,.5); }
.btn--pulse { background: var(--accent-2); border-color: var(--accent-2); color: #04231d; }
.btn--pulse:hover:not(:disabled) { background: #00c39c; }
@keyframes btnpulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,212,170,.45); }
  70%  { box-shadow: 0 0 0 12px rgba(0,212,170,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,212,170,0); }
}
@media (prefers-reduced-motion: reduce) { .btn--pulse { animation: none; } }

/* callout in parole semplici dentro uno stadio tecnico */
.stage__plain {
  margin: 0 0 10px; padding: 10px 13px; line-height: 1.55;
  background: rgba(0,212,170,.08); border: 1px solid rgba(0,212,170,.25);
  border-radius: 10px; font-size: .9rem; color: var(--text);
}
.stage__plain strong { color: var(--accent-2); }

/* ── Wizard (simple view) ── */
.wizard__stepper { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.wiz-step {
  display: flex; align-items: center; gap: 7px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--muted);
  font-weight: 700; font-size: .85rem; cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.wiz-step:hover { color: var(--text); border-color: var(--accent); }
.wiz-step__n {
  display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px;
  border-radius: 50%; background: var(--bg); border: 1px solid var(--border); font-size: .78rem;
}
.wiz-step--active { background: var(--accent); border-color: var(--accent); color: #fff; }
.wiz-step--active .wiz-step__n { background: rgba(255,255,255,.22); border-color: transparent; color: #fff; }
.wiz-step--done { color: var(--accent-2); border-color: rgba(0,212,170,.35); }
.wiz-step--done .wiz-step__n { background: var(--accent-2); border-color: transparent; color: #06231d; }
.wiz-hidden { display: none; }
.wizard__nav {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 6px;
}
.wizard__progress { font-size: .82rem; font-weight: 700; color: var(--muted); }

/* ── Temperature demo (simple view) — three temperatures side by side ── */
.temp-demo__sentences { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 16px; }
.temp-chip {
  padding: 7px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--muted); font-size: .82rem; font-weight: 600;
  cursor: pointer; transition: border-color .15s, color .15s, background .15s;
}
.temp-chip:hover { color: var(--text); border-color: var(--accent); }
.temp-chip--active { background: var(--accent); border-color: var(--accent); color: #fff; }
.temp-demo__prompt { font-size: 1.15rem; font-weight: 700; line-height: 1.5; margin: 6px 0 16px; }
.temp-demo__prompt .blank {
  display: inline-block; min-width: 68px; border-bottom: 3px dashed var(--accent-4);
  text-align: center; color: var(--accent-4);
}
.temp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 6px; }
.temp-col { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: var(--panel-2); }
.temp-col--base { border-color: rgba(124,92,255,.55); box-shadow: 0 0 0 1px rgba(124,92,255,.22); }
.temp-col__head { display: flex; flex-direction: column; gap: 2px; margin-bottom: 12px; }
.temp-col__t { font-weight: 800; font-size: .92rem; }
.temp-col__tag { font-size: .72rem; color: var(--muted); font-weight: 600; }
.temp-col__bars { display: flex; flex-direction: column; gap: 10px; }
.temp-cbar__row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 3px; }
.temp-cbar__label { font-family: var(--mono); font-weight: 700; font-size: .82rem; }
.temp-cbar__val { font-family: var(--mono); font-weight: 700; font-size: .78rem; color: var(--muted); }
.temp-cbar__track {
  display: block; height: 10px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; overflow: hidden;
}
.temp-cbar__fill { display: block; height: 100%; background: var(--accent); border-radius: 6px; transition: width .5s ease; }
.temp-cbar--top .temp-cbar__label { color: var(--accent-2); }
.temp-cbar--top .temp-cbar__val { color: var(--accent-2); }
.temp-cbar--top .temp-cbar__fill { background: var(--accent-2); }
.temp-col__note { margin-top: 12px; font-size: .78rem; color: var(--muted); }
.temp-demo__note { margin-top: 14px; font-size: .8rem; color: var(--muted); line-height: 1.5; }
.temp-demo__note code { font-family: var(--mono); color: var(--text); }

/* ── Step 5: "L'IA e il caso" ── */
.rnd-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 16px; }
.rnd-chip {
  padding: 7px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--muted); font-size: .82rem; font-weight: 600;
  cursor: pointer; transition: border-color .15s, color .15s, background .15s;
}
.rnd-chip:hover { color: var(--text); border-color: var(--accent); }
.rnd-chip--active { background: var(--accent); border-color: var(--accent); color: #fff; }
.rnd-bars { margin-top: 6px; display: flex; flex-direction: column; gap: 10px; }
.rnd-verdict {
  margin-top: 16px; padding: 12px 14px; border-radius: 10px; line-height: 1.5;
  background: rgba(255,107,107,.08); border: 1px solid rgba(255,107,107,.28);
}
.rnd-h3 { margin: 30px 0 4px; padding-top: 22px; border-top: 1px solid var(--border); font-size: 1.15rem; }
.err-grid { grid-template-columns: 1fr 1fr; }
/* wrong answers (out of the "acceptable" set) shown in red */
.temp-cbar--wrong .temp-cbar__label { color: var(--accent-3); }
.temp-cbar--wrong .temp-cbar__val { color: var(--accent-3); }
.temp-cbar--wrong .temp-cbar__fill { background: var(--accent-3); }

@media (max-width: 720px) {
  main { padding: 16px; }
  .stages { grid-template-columns: 1fr; }
  .stage--wide { grid-column: auto; }
  .control-row { flex-direction: column; align-items: stretch; }
  .engine-row { align-items: stretch; }
  .engine-switch { width: 100%; }
  .engine-btn { flex: 1; }
  .gamify { flex-direction: column; align-items: flex-start; }
  .mode-switch { width: 100%; }
  .mode-switch__btn { flex: 1; padding: 10px 8px; }
  .guess-bar__label { flex-basis: 92px; font-size: .85rem; }
  .scoreboard__item { flex: 1; min-width: 0; }
  .temp-grid { grid-template-columns: 1fr; }
  .wiz-step { flex: 1; justify-content: center; font-size: .78rem; padding: 8px 10px; }
}