/* =========================================================
   FOGLIO DI STILE UNICO — vale per tutte le pagine del sito.
   Struttura del file:
   1. Token (colori, misure)      2. Reset e base
   3. Tipografia                  4. Barra di navigazione
   5. Impaginazione e sezioni     6. Registro settimanale
   7. Progetti                    8. Archivio
   9. Diario di bordo            10. Footer
   11. Responsive                12. Accessibilità e movimento
   ========================================================= */

/* ---------- 1. TOKEN ---------- */
:root {
  --paper:      #EEEFF1;   /* fondo: grigio carta freddo */
  --paper-card: #F8F9FA;   /* fondo dei riquadri */
  --ink:        #14161C;   /* testo principale */
  --ink-soft:   #5A616E;   /* testo secondario */
  --rule:       #D3D6DC;   /* linee di separazione */
  --blue:       #1D3BB8;   /* colore dei link e degli accenti */
  --mark:       #F2E14C;   /* evidenziatore: solo per "in corso" */

  --wrap:       1080px;
  --prose:      62ch;      /* riga corta: si legge meglio */
  --radius:     4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #101319;
    --paper-card: #171B23;
    --ink:        #E8EAEE;
    --ink-soft:   #98A0AE;
    --rule:       #2A3040;
    --blue:       #8AA2FF;
    --mark:       #F2E14C;
  }
}

/* ---------- 2. RESET E BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Atkinson Hyperlegible", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  text-align: left;          /* mai testo giustificato */
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }

a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1.5px solid color-mix(in srgb, var(--blue) 35%, transparent);
  transition: border-color .18s ease, color .18s ease;
}
a:hover { border-bottom-color: var(--blue); }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 3. TIPOGRAFIA ---------- */
h1, h2, h3 {
  font-family: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 .5em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.1rem, 5.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; max-width: var(--prose); }
p:last-child { margin-bottom: 0; }

.lead { font-size: 1.12rem; }
.muted { color: var(--ink-soft); }

/* etichette, date, numeri: tutto in monospazio */
.label {
  font-family: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* evidenziatore: usato SOLO per ciò che è in corso adesso */
.mark {
  background: linear-gradient(to top, var(--mark) 0%, var(--mark) 42%, transparent 42%);
  padding: 0 .12em;
}
@media (prefers-color-scheme: dark) {
  .mark { background: none; box-shadow: inset 0 -2px 0 var(--mark); }
}

/* ---------- 4. BARRA DI NAVIGAZIONE ---------- */
.topbar {
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: .85rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.4rem;
  align-items: baseline;
  justify-content: space-between;
}
.brand {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: none;
}
.brand:hover { color: var(--blue); }

.nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.nav a {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1.5px solid transparent;
  padding-bottom: 2px;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--rule); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--blue); }

/* ---------- 5. IMPAGINAZIONE E SEZIONI ---------- */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }

.band { padding: 3.4rem 0; border-top: 1px solid var(--rule); }
.band:first-of-type { border-top: none; }
.band__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
}
.band__head .label { white-space: nowrap; margin: 0; }
.band__head h2 { margin: 0; }
.band__head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.hero { padding: 4rem 0 3.4rem; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}
.hero h1 { margin-bottom: .8rem; }

/* ---------- 6. REGISTRO SETTIMANALE (elemento firma) ---------- */
.ledger {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem 1.5rem;
}
.ledger__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: .8rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.ledger__head p { margin: 0 0 .15rem; }
.ledger__week {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.ledger__list { list-style: none; margin: 0; padding: 0; }
.ledger__list li {
  display: flex;
  gap: .7rem;
  padding: .42rem 0;
  line-height: 1.55;
  font-size: .97rem;
}
.glyph {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .9rem;
  color: var(--ink-soft);
  flex: none;
  padding-top: .1rem;
}
.glyph--done { color: var(--blue); font-weight: 600; }
.ledger__foot { margin-top: 1.1rem; padding-top: .9rem; border-top: 1px solid var(--rule); }

/* ---------- 7. PROGETTI ---------- */
.project { padding: 1.8rem 0; border-top: 1px solid var(--rule); }
.project:first-of-type { border-top: none; padding-top: 0; }
.project__meta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: .5rem; }
.project h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-bottom: .45rem; }
.project__link {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  display: inline-block;
  margin-top: .5rem;
}

/* ---------- 8. ARCHIVIO ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.6rem;
}
.card { border-bottom: none; display: block; color: var(--ink); }
.card:hover .thumb { border-color: var(--blue); }
.card:hover .card__title { color: var(--blue); }
.thumb {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper-card);
  background-image:
    repeating-linear-gradient(135deg, var(--rule) 0 1px, transparent 1px 11px);
  display: flex;
  align-items: flex-end;
  padding: .7rem;
  overflow: hidden;
  transition: border-color .18s ease;
}
.thumb:has(img) { padding: 0; align-items: stretch; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb__type {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .7rem;
  letter-spacing: .1em;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: .1rem .4rem;
  color: var(--ink-soft);
}
.card__meta { margin: .7rem 0 .15rem; display: flex; gap: .8rem; }
.card__title { display: block; font-weight: 700; line-height: 1.3; transition: color .18s ease; }
.card__desc { display: block; font-size: .92rem; color: var(--ink-soft); line-height: 1.5; margin-top: .2rem; }

.empty {
  border: 1px dashed var(--rule);
  border-radius: var(--radius);
  padding: 1.6rem;
  color: var(--ink-soft);
  font-size: .95rem;
}

/* ---------- 9. DIARIO DI BORDO ---------- */
.entry { padding: 2.4rem 0; border-top: 1px solid var(--rule); }
.entry:first-of-type { border-top: none; padding-top: .5rem; }
.entry__head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.entry__num {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.entry__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.4rem;
}
.col__label { display: block; margin-bottom: .8rem; }
.col ul { list-style: none; margin: 0; padding: 0; }
.col li {
  display: flex;
  gap: .7rem;
  padding: .42rem 0;
  font-size: .97rem;
  line-height: 1.55;
}
.col p { font-size: .97rem; }
.lesson {
  border-left: 2px solid var(--blue);
  padding-left: 1rem;
  margin-top: 1.2rem;
}

/* ---------- 10. FOOTER ---------- */
.footer {
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
  padding: 2.2rem 0 3rem;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: baseline;
}
.footer a { color: var(--ink-soft); border-bottom-color: var(--rule); }
.footer a:hover { color: var(--blue); }

/* ---------- 11. RESPONSIVE ---------- */
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; gap: 2.2rem; }
  .entry__cols { grid-template-columns: 1fr; gap: 1.8rem; }
}
@media (max-width: 560px) {
  body { font-size: 17px; }
  .hero { padding: 2.6rem 0 2.2rem; }
  .band { padding: 2.6rem 0; }
  .topbar__inner { padding: .75rem 1.2rem; }
  .wrap { padding: 0 1.2rem; }
  .nav { gap: 1rem; }
}

/* ---------- 12. ACCESSIBILITÀ E MOVIMENTO ---------- */
.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;
}
.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: var(--paper);
  padding: .6rem 1rem; z-index: 100; border: none;
}
.skip:focus { left: 1rem; top: .6rem; }

.rise { animation: rise .5s cubic-bezier(.2,.7,.3,1) backwards; }
.rise--late { animation-delay: .09s; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}