/* AbilityRoom — Design system "Carta & Inchiostro".
   Identità calda ed editoriale: carta color crema, palette terracotta/pino/ocra,
   bordi pieni d'inchiostro e ombre nette (stile stampa/adesivo), display serif.
   Unità in rem/clamp/%. I nomi delle classi sono stabili (contratto con HTML/JS). */

:root {
  /* superfici */
  --paper: #fbf5ea;       /* sfondo crema caldo */
  --paper-2: #f3e8d5;     /* sezioni a tinta */
  --paper-3: #efe2cd;
  --card: #fffdf8;        /* superficie schede */
  --bg: var(--paper);
  --bg-soft: var(--paper-2);
  --bg-warm: #faeadd;

  /* inchiostro / testo */
  --ink: #221f1b;         /* nero caldo */
  --ink-soft: #574f45;    /* testo secondario */
  --slate: #574f45;
  --muted: #8c8375;
  --line: #e3d7c1;        /* bordo tenue */
  --line-strong: var(--ink);

  /* accenti */
  --terra: #d4451e;       /* PRIMARIO terracotta */
  --terra-ink: #a8330f;
  --pine: #12695a;        /* SECONDARIO pino */
  --pine-2: #0c5245;
  --ochre: #f2b34b;       /* pop / evidenziatore */
  --sky-pop: #2f7fb0;
  --berry: #b5446e;

  /* alias legacy (rimappati alla nuova palette: aggiornano tutti i var() esistenti) */
  --blue: var(--pine);
  --blue-700: var(--pine-2);
  --sky: #1a8271;
  --coral: var(--terra);
  --coral-2: #e0703f;
  --amber: var(--ochre);
  --dark: #182c27;        /* sezioni scure: quasi-nero pino */
  --dark-2: #21403a;

  /* semantici */
  --success: #1a6b43;
  --success-bg: #e5f2e4;
  --error: #b8341f;
  --error-bg: #fbe6df;

  /* i "gradient" storici diventano tinte piene coerenti col tema */
  --grad-primary: var(--terra);
  --grad-coral: var(--pine);
  --grad-text: var(--terra);

  /* forma: ombre nette d'inchiostro (firma del tema) */
  --radius-sm: 9px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --bd: 2px solid var(--ink);
  --sh-sm: 3px 3px 0 var(--ink);
  --sh: 4px 4px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
  --shadow: 5px 5px 0 var(--ink);
  --shadow-lg: 8px 8px 0 var(--ink);
  --sh-soft: 0 22px 48px -26px rgba(34, 31, 27, .5);

  /* layout */
  --container: 74rem;
  --sidebar: 16.5rem;
  --topbar-h: 4.5rem;

  /* spaziatura fluida */
  --sp-1: .375rem; --sp-2: .625rem; --sp-3: 1rem; --sp-4: 1.5rem; --sp-5: 2.25rem; --sp-6: 3.25rem;
  --sp-section: clamp(3.5rem, 8vw, 6.5rem);

  /* tipografia */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-head: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Instrument Sans', 'Segoe UI', system-ui, sans-serif;
  --fs-hero: clamp(2.6rem, 6vw, 4.6rem);
  --fs-h2: clamp(1.9rem, 3.8vw, 2.9rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.55rem);
  --fs-lead: clamp(1.05rem, 1.4vw, 1.22rem);

  /* motivo carta a quadretti / puntini */
  --dot: rgba(34, 31, 27, .09);

  --ease: cubic-bezier(.2, .9, .3, 1);
  --z-nav: 90; --z-overlay: 100; --z-toast: 120;
}

/* alta leggibilità (accessibilità) */
:root.reading {
  --font-body: 'Atkinson Hyperlegible', 'Verdana', system-ui, sans-serif;
  --font-head: 'Atkinson Hyperlegible', 'Verdana', system-ui, sans-serif;
  --font-display: 'Atkinson Hyperlegible', 'Verdana', system-ui, sans-serif;
  letter-spacing: .01em;
}
:root.reading body { line-height: 1.85; }
:root.reading p, :root.reading li { max-width: 64ch; }

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2 { font-family: var(--font-display); font-optical-sizing: auto; font-weight: 600; line-height: 1.04; letter-spacing: -.015em; color: var(--ink); }
h3, h4, h5 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; letter-spacing: -.01em; color: var(--ink); }
h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { color: var(--ink-soft); }
a { color: var(--terra-ink); text-decoration: none; transition: color .18s var(--ease); }
a:hover { color: var(--terra); }
img { max-width: 100%; display: block; height: auto; }
ul, ol { padding-left: 1.15rem; }
strong, b { font-weight: 700; color: var(--ink); }

:focus-visible { outline: 3px solid var(--terra); outline-offset: 2px; border-radius: 3px; }
::selection { background: var(--ochre); color: var(--ink); }

.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--ink); color: var(--paper); padding: .7rem 1.1rem; font-family: var(--font-head); font-weight: 700; border-radius: 0 0 var(--radius-sm) 0; }
.skip-link:focus { left: 0; color: var(--paper); }

/* ---------- form: controlli a tema (bordo inchiostro, ombra netta) ---------- */
label { font-family: var(--font-head); font-weight: 600; font-size: .92rem; color: var(--ink); }

input[type="text"], input[type="email"], input[type="password"], input[type="date"],
input[type="number"], input[type="search"], select, textarea {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  background: var(--card); border: var(--bd); border-radius: var(--radius-sm);
  padding: .8rem .9rem; transition: box-shadow .15s var(--ease), transform .12s var(--ease);
}
input:hover, select:hover, textarea:hover { box-shadow: var(--sh-sm); }
input:focus, select:focus, textarea:focus { outline: none; box-shadow: var(--sh); }
textarea { resize: vertical; min-height: 7rem; line-height: 1.6; }
::placeholder { color: var(--muted); opacity: 1; }

select {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23221f1b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .85rem center; padding-right: 2.4rem; cursor: pointer;
}
select option { color: var(--ink); background: var(--card); }

input[type="checkbox"], input[type="radio"] {
  appearance: none; -webkit-appearance: none; width: 1.3rem; height: 1.3rem; flex: 0 0 auto;
  border: var(--bd); background: var(--card); cursor: pointer; position: relative;
  transition: background .12s var(--ease);
}
input[type="checkbox"] { border-radius: 6px; }
input[type="radio"] { border-radius: 50%; }
input[type="checkbox"]:checked, input[type="radio"]:checked { background: var(--terra); }
input[type="checkbox"]:checked::after { content: ''; position: absolute; left: 6px; top: 2px; width: 5px; height: 10px; border: solid var(--card); border-width: 0 2.5px 2.5px 0; transform: rotate(42deg); }
input[type="radio"]:checked::after { content: ''; position: absolute; inset: 4px; border-radius: 50%; background: var(--card); }
input[type="checkbox"]:focus-visible, input[type="radio"]:focus-visible { box-shadow: var(--sh-sm); }

input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; background: var(--line); border: 1.5px solid var(--ink); border-radius: 99px; cursor: pointer; padding: 0; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 1.25rem; height: 1.25rem; border-radius: 4px; background: var(--terra); border: 2px solid var(--ink); }
input[type="range"]::-moz-range-thumb { width: 1.25rem; height: 1.25rem; border-radius: 4px; background: var(--terra); border: 2px solid var(--ink); }

* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--ink); border-radius: 99px; border: 3px solid var(--paper); }

/* ---------- utility ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.section { padding-block: var(--sp-section); }
.text-center { text-align: center; }
.muted { color: var(--muted); }
/* evidenziatore editoriale invece di gradient-text */
.hl { background: var(--ochre); color: var(--ink); padding: 0 .12em; border-radius: 3px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.hidden { display: none !important; }
.stack { display: flex; flex-direction: column; }
.grid { display: grid; gap: var(--sp-4); }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: var(--sp-2); } .gap-3 { gap: var(--sp-3); }
.mt-2 { margin-top: var(--sp-2); } .mt-3 { margin-top: var(--sp-3); } .mt-4 { margin-top: var(--sp-4); }
.full { width: 100%; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-head); font-weight: 700;
  font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink);
  background: var(--card); border: var(--bd); padding: .4rem .85rem; border-radius: var(--radius-pill);
  box-shadow: var(--sh-sm);
}
.lead { font-size: var(--fs-lead); color: var(--ink-soft); }

html.js [data-reveal] { opacity: 0; will-change: transform, opacity; }
@media (prefers-reduced-motion: reduce) { html.js [data-reveal] { opacity: 1 !important; transform: none !important; } }