/* Substack CLI — foglio di bozze.
   Carta, inchiostro e matita rossa. Nessun font o script esterno: solo stack di sistema. */

:root {
  --paper: #f4efe4;
  --paper-2: #ebe4d3;
  --ink: #1d1a16;
  --muted: #5b5448;
  --rule: #cfc5ae;
  --pencil: #b92f1c;     /* matita rossa */
  --ok: #2b6a3a;
  --warn: #9a5a06;
  --card: #fbf8f1;
  --shadow: #1d1a16;
  --grain: .07;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "Hoefler Text", Georgia, serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --gutter: 16px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14110f;
    --paper-2: #1d1814;
    --ink: #efe7d8;
    --muted: #b3a995;
    --rule: #3a322a;
    --pencil: #ff7058;
    --ok: #7cc58b;
    --warn: #f2a93b;
    --card: #1b1713;
    --shadow: #000;
    --grain: .12;
  }
}
:root[data-theme="dark"] {
  --paper: #14110f; --paper-2: #1d1814; --ink: #efe7d8; --muted: #b3a995; --rule: #3a322a;
  --pencil: #ff7058; --ok: #7cc58b; --warn: #f2a93b; --card: #1b1713; --shadow: #000; --grain: .12;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.6;
  position: relative;
}
/* grana della carta, generata inline (nessuna immagine esterna) */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5  0 0 0 0 .45  0 0 0 0 .4  0 0 0 .9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.wrap { position: relative; z-index: 1; max-width: 1120px; margin: 0 auto; padding: 0 var(--gutter); }

a { color: inherit; text-decoration-color: var(--pencil); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--pencil); }
:focus-visible { outline: 3px solid var(--pencil); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------- testata ---------- */
.masthead { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 18px 0 14px; border-bottom: 3px double var(--ink); font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; }
.masthead b { letter-spacing: .14em; }
.masthead nav { display: flex; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.masthead nav a { text-decoration: none; border-bottom: 1px solid transparent; }
.masthead nav a:hover { border-bottom-color: var(--pencil); }
.masthead nav a.lang { padding-left: 18px; border-left: 1px solid var(--rule); }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; padding: 56px 0 64px; }
.kicker { font-family: var(--mono); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--pencil); margin: 0 0 14px; }
h1 { font-size: clamp(2.3rem, 5.6vw, 4.2rem); line-height: 1.02; letter-spacing: -.02em; margin: 0 0 22px; font-weight: 700; }
h1 em { font-style: italic; box-shadow: inset 0 -.32em 0 color-mix(in srgb, var(--pencil) 28%, transparent); }
.lead { font-size: 1.25rem; max-width: 34em; margin: 0 0 28px; color: var(--ink); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; font-family: var(--mono); font-size: .9rem; text-decoration: none; padding: 11px 18px; border: 2px solid var(--ink); background: var(--ink); color: var(--paper); box-shadow: 4px 4px 0 var(--pencil); transition: transform .12s, box-shadow .12s; }
.btn:hover { color: var(--paper); transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--pencil); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: 4px 4px 0 var(--rule); }
.btn.ghost:hover { color: var(--ink); box-shadow: 2px 2px 0 var(--rule); }

.galley { position: relative; background: var(--card); border: 2px solid var(--ink); box-shadow: 8px 8px 0 var(--shadow); transform: rotate(-1.2deg); }
.galley header { display: flex; justify-content: space-between; padding: 8px 14px; border-bottom: 2px solid var(--ink); font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; background: var(--paper-2); }
.galley pre { margin: 0; padding: 18px 16px 20px; overflow-x: auto; font-family: var(--mono); font-size: .86rem; line-height: 1.7; }
.galley .p { color: var(--pencil); user-select: none; }
.galley .c { color: var(--muted); }
.galley .ok { color: var(--ok); }
.note { position: absolute; right: -10px; bottom: -22px; max-width: 15em; transform: rotate(2.5deg); font-family: var(--mono); font-size: .76rem; line-height: 1.35; color: var(--pencil); background: var(--paper); border: 1.5px solid var(--pencil); padding: 6px 10px; }

/* ---------- sezioni ---------- */
section { padding: 48px 0; border-top: 1px solid var(--rule); }
.folio { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; }
.folio > div, .hero > div, .hero > figure { min-width: 0; }
pre { max-width: 100%; }
.folio > .tag { font-family: var(--mono); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--pencil); padding-top: .55rem; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); line-height: 1.12; margin: 0 0 20px; letter-spacing: -.01em; }
h3 { font-size: 1.15rem; margin: 0 0 6px; }
p { margin: 0 0 14px; }
code, pre, kbd { font-variant-ligatures: none; font-feature-settings: "liga" 0, "calt" 0; }
code { font-family: var(--mono); font-size: .9em; background: var(--paper-2); padding: .08em .35em; border: 1px solid var(--rule); }
pre code { background: none; border: 0; padding: 0; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 8px; }
.card { background: var(--card); border: 1.5px solid var(--ink); padding: 18px 18px 8px; }
.card h3::before { content: attr(data-n); font-family: var(--mono); color: var(--pencil); margin-right: 10px; }

.card { min-width: 0; }
.card pre { margin: 10px 0 14px; padding: 10px 12px; overflow-x: auto; background: var(--paper-2); border: 1px solid var(--rule); font-family: var(--mono); font-size: .8rem; line-height: 1.6; }
.card h3[data-n="A"]::before, .card h3[data-n="B"]::before, .card h3[data-n="C"]::before, .card h3[data-n="D"]::before { content: attr(data-n) "."; }

.cmds { margin: 8px 0 0; border: 2px solid var(--ink); background: var(--card); }
.cmds .c { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 16px; padding: 10px 14px; border-bottom: 1px dashed var(--rule); align-items: baseline; }
.cmds .c:last-child { border-bottom: 0; }
.cmds .c > code { white-space: normal; overflow-wrap: anywhere; }

.rules { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.rules li { padding-left: 34px; position: relative; }
.rules li::before { content: "✓"; position: absolute; left: 0; top: 0; font-family: var(--mono); font-weight: 700; color: var(--ok); border: 1.5px solid var(--ok); width: 22px; height: 22px; display: grid; place-items: center; font-size: .8rem; line-height: 1; }

.figures { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 2px solid var(--ink); margin-top: 8px; background: var(--card); }
.figures div { padding: 18px 16px; border-right: 1px solid var(--rule); }
.figures div:last-child { border-right: 0; }
.figures strong { display: block; font-size: 2.3rem; line-height: 1; letter-spacing: -.02em; }
.figures span { display: block; margin-top: 8px; font-family: var(--mono); font-size: .76rem; color: var(--muted); line-height: 1.4; }

.status { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; margin-top: 8px; }
.row { display: grid; grid-template-columns: 170px 1fr; gap: 18px; align-items: start; padding: 14px 0; border-bottom: 1px dashed var(--rule); }
.stamp { display: inline-block; justify-self: start; font-family: var(--mono); font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; border: 2px solid currentColor; padding: 4px 9px; transform: rotate(-2.5deg); }
.stamp.ok { color: var(--ok); }
.stamp.warn { color: var(--warn); }
.stamp.no { color: var(--muted); }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 8px 0 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.steps li { counter-increment: s; padding-left: 52px; position: relative; min-width: 0; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: -2px; width: 34px; height: 34px; display: grid; place-items: center; border: 2px solid var(--ink); border-radius: 50%; font-family: var(--mono); font-weight: 700; }
.steps pre { margin: 8px 0 0; padding: 12px 14px; overflow-x: auto; background: var(--card); border: 1.5px solid var(--ink); font-family: var(--mono); font-size: .86rem; line-height: 1.6; }

.docs { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; }
.docs li { padding: 12px 0; border-bottom: 1px dashed var(--rule); }
.docs small { display: block; color: var(--muted); font-size: .92rem; }

footer { margin-top: 24px; padding: 28px 0 56px; border-top: 3px double var(--ink); font-family: var(--mono); font-size: .8rem; color: var(--muted); }
footer p { max-width: 62em; }

/* ---------- responsive ---------- */
@media (max-width: 880px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 48px; padding-top: 36px; }
  .galley { transform: none; }
  .note { position: static; transform: none; margin: 14px 12px 12px; max-width: none; }
  .folio { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .cards, .docs { grid-template-columns: minmax(0, 1fr); }
  .figures { grid-template-columns: repeat(2, 1fr); }
  .figures div:nth-child(2) { border-right: 0; }
  .figures div:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .cmds .c { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}

/* ---------- movimento: una sola entrata scaglionata ---------- */
@media (prefers-reduced-motion: no-preference) {
  @keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
  @keyframes settle { from { opacity: 0; transform: rotate(-4deg) translateY(18px); } to { opacity: 1; transform: rotate(-1.2deg); } }
  .hero > div > * { animation: rise .7s cubic-bezier(.2,.7,.2,1) both; }
  .hero > div > :nth-child(2) { animation-delay: .08s; }
  .hero > div > :nth-child(3) { animation-delay: .16s; }
  .hero > div > :nth-child(4) { animation-delay: .24s; }
  .galley { animation: settle .9s .25s cubic-bezier(.2,.7,.2,1) both; }
  @media (max-width: 880px) { .galley { animation: rise .8s .2s both; } }
}
@media print { body::before { display: none; } .galley { box-shadow: none; } }