/*
 * Assistente Digitale — foglio di stile della landing.
 *
 * Il soggetto è la scadenza, quindi la data è materiale tipografico: le etichette e le
 * date stanno in mono, il testo in un serif da documento, i titoli in un grottesco con
 * carattere. Il motivo strutturale è il margine di un registro — colonna di etichette a
 * sinistra, filetto verticale, testo a destra.
 *
 * Il filetto laterale da 4px sulle righe di attività è quello vero dell'applicazione:
 * rosso se urgente, verde-acqua se in attesa. È l'unico posto dove il rosso compare.
 */

:root {
  --ground: #eef1f1;
  --surface: #fbfcfc;
  --surface-sunk: #e5eaea;
  --ink: #10181b;
  --ink-soft: #4a5a5e;
  --ink-faint: #78888b;
  --rule: #c9d2d2;
  --rule-soft: #dde3e3;
  --accent: #0b6e6b;
  --accent-ink: #ffffff;
  --urgent: #b3382c;
  --calm: #0b6e6b;

  --display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --body: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;

  --gutter: 8.5rem;
  --misura: 63ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0c1113;
    --surface: #131a1d;
    --surface-sunk: #0a0e10;
    --ink: #e7edec;
    --ink-soft: #9cabad;
    --ink-faint: #6d7d80;
    --rule: #263134;
    --rule-soft: #1c2427;
    --accent: #46b3ac;
    --accent-ink: #06201f;
    --urgent: #e0685a;
    --calm: #46b3ac;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.etichetta {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- testata ---------- */

.testata {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem clamp(1.25rem, 4vw, 3rem);
  background: var(--ground);
  border-bottom: 1px solid var(--rule-soft);
}

@supports (backdrop-filter: blur(8px)) {
  .testata {
    background: color-mix(in oklab, var(--ground) 88%, transparent);
    backdrop-filter: blur(8px);
  }
}

.marchio {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.015em;
  text-decoration: none;
}
.marchio span { color: var(--accent); }

.testata nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}
.testata nav a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink-soft);
  /* Bersaglio comodo: il testo in mono a 0.78rem è alto 18px, sotto il minimo. */
  padding: 0.4rem 0;
}
.testata nav a:hover { color: var(--ink); }
.solo-largo { display: none; }
@media (min-width: 720px) { .solo-largo { display: inline; } }

.bottone {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink);
  transition: background 120ms ease, color 120ms ease;
}
.testata nav .bottone {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
}
.bottone:hover { background: var(--ink); color: var(--ground); }
.testata nav .bottone:hover { color: var(--ground); }

.bottone-pieno {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.bottone-pieno:hover { background: transparent; color: var(--accent); }

/* ---------- impianto a registro ---------- */

.sezione {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 2.5rem;
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1.25rem, 4vw, 3rem);
  max-width: 78rem;
  margin: 0 auto;
  border-top: 1px solid var(--rule-soft);
}
.sezione:first-of-type { border-top: 0; }

@media (min-width: 920px) {
  .sezione { grid-template-columns: var(--gutter) minmax(0, 1fr); }
  .margine {
    position: relative;
    padding-right: 2.5rem;
    border-right: 1px solid var(--rule);
    min-height: 100%;
  }
}

.margine .etichetta { display: block; }
.margine .nota {
  margin-top: 0.5rem;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--ink-faint);
}

.colonna { max-width: var(--misura); }
.larga { max-width: none; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.025em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: clamp(2.5rem, 6.4vw, 4.3rem); line-height: 1.02; }
h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  line-height: 1.12;
  margin-bottom: 1rem;
}
h3 {
  font-size: 1.075rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
}
p { margin: 0 0 1.05rem; }
p:last-child { margin-bottom: 0; }
.guida { font-size: 1.2rem; line-height: 1.5; color: var(--ink-soft); }
strong { font-weight: 500; color: var(--ink); }

/* ---------- apertura ---------- */

.apertura h1 { margin-bottom: 1.25rem; }
.apertura .guida { max-width: 46ch; }
.azioni {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.sottotesto {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}

/* ---------- le righe: il motivo del prodotto ---------- */

.righe {
  margin-top: 3rem;
  background: var(--surface);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  overflow: hidden;
}
.righe-testa {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  background: var(--surface-sunk);
  border-bottom: 1px solid var(--rule-soft);
}
.scorri { overflow-x: auto; }
.riga {
  display: grid;
  grid-template-columns: minmax(11rem, 2.2fr) minmax(8rem, 1.3fr) 7.5rem;
  align-items: center;
  gap: 1rem;
  min-width: 30rem;
  padding: 0.8rem 1rem 0.8rem calc(1rem - 4px);
  border-left: 4px solid transparent;
  border-bottom: 1px solid var(--rule-soft);
  animation: entra 520ms cubic-bezier(0.2, 0.7, 0.3, 1) backwards;
}
.riga:last-child { border-bottom: 0; }
.riga.urge { border-left-color: var(--urgent); }
.riga.attende { border-left-color: var(--calm); }
.riga .oggetto { font-weight: 500; }
.riga .chi,
.riga .quando {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.riga .quando { text-align: right; font-variant-numeric: tabular-nums; }
.riga.urge .quando { color: var(--urgent); font-weight: 500; }

.riga:nth-child(1) { animation-delay: 90ms; }
.riga:nth-child(2) { animation-delay: 170ms; }
.riga:nth-child(3) { animation-delay: 250ms; }
.riga:nth-child(4) { animation-delay: 330ms; }

@keyframes entra {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .riga { animation: none; }
}

/* ---------- elenchi ---------- */

.capacita {
  display: grid;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
}
@media (min-width: 620px) { .capacita { grid-template-columns: 1fr 1fr; } }
.capacita > div { background: var(--surface); padding: 1.4rem 1.5rem; }
.capacita p { font-size: 0.98rem; color: var(--ink-soft); margin: 0; }

.passi { display: grid; gap: 1.6rem; }
.passo { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem; }
.passo .numero {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  padding-top: 0.35rem;
  font-variant-numeric: tabular-nums;
}
.passo p { font-size: 0.98rem; color: var(--ink-soft); margin: 0; }

.schietto { display: grid; gap: 0.9rem; }
.schietto div {
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: 0.75rem;
  font-size: 0.98rem;
  color: var(--ink-soft);
}
.schietto .segno { font-family: var(--mono); color: var(--ink-faint); }

.destinatari {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding: 0;
  list-style: none;
}
.destinatari li {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink-soft);
}

/* ---------- chiusura e piede ---------- */

.chiusura { background: var(--surface); border-top: 1px solid var(--rule); }
.chiusura h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }

footer {
  padding: 2.5rem clamp(1.25rem, 4vw, 3rem) 3.5rem;
  border-top: 1px solid var(--rule-soft);
  max-width: 78rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}
footer a { text-decoration: none; padding: 0.4rem 0; }
footer a:hover { color: var(--ink); }
footer .distanzia { margin-left: auto; }