/* ===========================================================
   THE BEGGARS — Reset, tipografia, primitive di layout
   =========================================================== */

*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background-color: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: var(--t-base);
  line-height: var(--lh-body);
  min-height: 100svh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Grana di carta sopra tutto: dà il tocco "stampato" senza immagini pesanti. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

img,
picture,
video,
svg { display: block; max-width: 100%; }

img { height: auto; }

input,
button,
textarea,
select { font: inherit; color: inherit; }

button {
  background: none;
  border: 0;
  cursor: pointer;
}

ul, ol { list-style: none; padding: 0; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--c-accent-hi);
  outline-offset: 3px;
}

::selection {
  background: var(--c-accent);
  color: var(--c-ink);
}

/* ---------- Scrollbar ---------- */
* { scrollbar-color: var(--c-ink-faint) transparent; scrollbar-width: thin; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg-deep); }
::-webkit-scrollbar-thumb { background: rgb(var(--c-ink-rgb) / 0.18); }
::-webkit-scrollbar-thumb:hover { background: var(--c-accent); }

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 400;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-display);
  text-transform: uppercase;
}

p { text-wrap: pretty; }

em, i { font-style: italic; }

.u-accent { color: var(--c-accent); }
.u-dim { color: var(--c-ink-dim); }

.u-overline {
  font-family: var(--f-body);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--c-accent);
}

/* ---------- Layout ---------- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--container-max));
  margin-inline: auto;
}

.section {
  position: relative;
  z-index: 2;
  padding-block: var(--s-section);
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}

.section + .section { border-top: 1px solid var(--c-line); }

/* Fascia di passaggio fra due sezioni: resta una .section perché la riga di
   separazione la disegna .section + .section, ma respira molto meno. */
.section--strip {
  padding-block: clamp(1.75rem, 1.2rem + 2vw, 3rem);
}

.section__head {
  margin-bottom: clamp(1.5rem, 1rem + 2vw, 3rem);
}

.section__title {
  font-size: var(--t-2xl);
  position: relative;
}

/* Blocco pieno dietro il titolo, come i manifesti dei concerti */
.section__title::after {
  content: "";
  display: block;
  width: clamp(2.5rem, 5vw, 5rem);
  height: 0.45rem;
  margin-top: 0.6rem;
  background: var(--c-accent);
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--s-4);
  z-index: 999;
  padding: var(--s-3) var(--s-4);
  background: var(--c-accent);
  /* Sul pieno d'accento il testo chiaro sta a 2.9:1, quello scuro a 5.9:1. */
  color: var(--c-bg-deep);
  font-weight: 700;
}
.skip-link:focus { top: var(--s-4); }

/* Bottoni */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--c-ink);
  --btn-bd: var(--c-line-strong);
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.62em 1.15em;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius);
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}

.btn:hover {
  --btn-bg: var(--c-ink);
  --btn-fg: var(--c-bg);
  --btn-bd: var(--c-ink);
}

/* Sul pieno d'accento il testo chiaro sta a 2.9:1, quello scuro a 5.9:1. */
.btn--accent {
  --btn-bg: var(--c-accent);
  --btn-fg: var(--c-bg-deep);
  --btn-bd: var(--c-accent);
}
.btn--accent:hover {
  --btn-bg: var(--c-accent-hi);
  --btn-bd: var(--c-accent-hi);
  --btn-fg: var(--c-bg);
}

.btn--sm { padding: 0.45em 0.85em; font-size: var(--t-xs); }

/* Solo icona. min-height/width in px e non in em: il bersaglio deve restare
   toccabile (44 px, soglia WCAG 2.5.5) anche quando il font è piccolo. */
.btn--icon {
  justify-content: center;
  gap: 0;
  padding: 0;
  min-width: 44px;
  min-height: 44px;
}

/* Reveal allo scroll: gestito da IntersectionObserver, niente librerie */
.reveal {
  opacity: 0;
  transform: translateY(1.4rem);
  transition: opacity var(--dur-slow) var(--ease),
              transform var(--dur-slow) var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* Stato di caricamento dei blocchi popolati da JSON */
.is-loading {
  min-height: 8rem;
  background: linear-gradient(90deg, transparent, var(--c-wash), transparent);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

.data-error {
  padding: var(--s-4);
  border: 1px dashed var(--c-line-strong);
  color: var(--c-ink-dim);
  font-size: var(--t-sm);
}

/* Rispetto delle preferenze di movimento: niente parallasse né bounce */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}