/* Grainder's appunti — carta, inchiostro, un evidenziatore. */

@font-face { font-family: "Newsreader"; src: url("fonts/newsreader.woff2") format("woff2"); font-weight: 200 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/newsreader-italic.woff2") format("woff2"); font-weight: 200 800; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/plex-sans.woff2") format("woff2"); font-weight: 100 700; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/plex-mono.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }

:root {
  --paper: #f4f0e6;
  --paper-2: #ebe5d6;
  --sheet: #fffdf8;
  --ink: #1d1b16;
  --ink-2: #57513f;
  --ink-3: #7f7866;
  --rule: #d8d0bd;
  --mark: #f6d743;
  --mark-soft: rgba(246, 215, 67, .6);
  --pen: #2340a8;
  --wa: #1d6b45;
  --wa-hover: #155336;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --shadow-sheet: 0 1px 1px rgba(40, 32, 10, .06), 0 8px 20px -8px rgba(40, 32, 10, .22);
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--pen); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--pen); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.1; letter-spacing: -.01em; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
mark {
  color: inherit;
  padding: 0 .06em;
  background: linear-gradient(transparent 58%, var(--mark) 58%, var(--mark) 90%, transparent 90%);
}

.wrap { width: 100%; max-width: 1160px; margin-inline: auto; padding-inline: 24px; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 10; background: var(--paper); border-bottom: 1px solid var(--rule); }
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { font-family: var(--serif); font-size: 1.3rem; font-weight: 600; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand em { font-style: italic; font-weight: 400; }
.top nav { display: flex; align-items: center; gap: 22px; font-size: .95rem; }
.top nav a:not(.btn) { color: var(--ink-2); text-decoration: none; }
.top nav a:not(.btn):hover,
.top nav a[aria-current] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--mark); text-decoration-thickness: 3px; }

/* ---------- bottoni ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  padding: .8em 1.3em; border-radius: 999px; border: 1.5px solid transparent;
  font: 500 1rem/1 var(--sans); text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn:hover { text-decoration: none; }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: var(--wa-hover); }
.btn-ghost { border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { padding: .55em 1em; font-size: .9rem; }
.ico { flex: none; }

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: 56px; align-items: center; padding-block: 72px 88px;
}
.hero-solo { grid-template-columns: minmax(0, 780px); }
.eyebrow { font: 400 .8rem/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 20px; }
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 4.1rem); font-weight: 400; }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 33em; margin-top: 22px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* i fogli veri del portfolio, impilati sulla scrivania */
.hero-sheets { position: relative; display: block; width: 100%; max-width: 470px; aspect-ratio: 1 / 1.08; justify-self: center; }
.sheet {
  position: absolute; width: 62%; aspect-ratio: 1 / 1.414;
  object-fit: cover; object-position: top;
  background: var(--sheet); box-shadow: var(--shadow-sheet); border-radius: 2px;
  transition: transform .4s var(--ease);
}
.n1 .sheet { left: 19%; top: 4%; transform: rotate(-2deg); }
.n2 .sheet:nth-of-type(1) { left: 6%;  top: 3%;  transform: rotate(-5deg); }
.n2 .sheet:nth-of-type(2) { left: 32%; top: 9%;  transform: rotate(3deg); }
.n3 .sheet:nth-of-type(1) { left: 2%;  top: 7%;  transform: rotate(-7deg); }
.n3 .sheet:nth-of-type(2) { left: 36%; top: 1%;  transform: rotate(5deg); }
.n3 .sheet:nth-of-type(3) { left: 19%; top: 10%; transform: rotate(-1.5deg); }
.n2:hover .sheet:nth-of-type(1), .n3:hover .sheet:nth-of-type(1) { transform: rotate(-9deg) translateX(-10px); }
.n3:hover .sheet:nth-of-type(2) { transform: rotate(7deg) translateX(10px); }
.hero-sheets:hover .sheet:last-of-type { transform: rotate(0deg) translateY(-8px); }
.sheet-label {
  position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  max-width: 92%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font: .78rem/1.4 var(--mono); color: var(--ink-2);
  background: var(--paper); border: 1px solid var(--rule); padding: 4px 10px;
}

/* ---------- come funziona ---------- */
.steps {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: 56px; padding-block: 72px; border-top: 1px solid var(--rule);
}
.steps-intro { position: sticky; top: 100px; align-self: start; }
.steps-intro h2, .section-head h2, .faq h2, .closing h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 400; }
.steps-intro p { color: var(--ink-2); margin-top: 14px; max-width: 24em; }
.steps-list { list-style: none; margin: 0; padding: 0; }
.steps-list li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 16px; padding: 26px 0; border-top: 1px solid var(--rule); }
.steps-list li:last-child { border-bottom: 1px solid var(--rule); }
.n { justify-self: start; align-self: start; font: 400 .95rem/1.9 var(--mono); padding: 0 .2em; background: linear-gradient(transparent 55%, var(--mark-soft) 55%); }
.steps-list h3 { font-size: 1.45rem; font-weight: 500; }
.steps-list p { color: var(--ink-2); margin-top: 6px; max-width: 36em; }

/* ---------- vetrina + griglia ---------- */
.showcase { padding-block: 72px; border-top: 1px solid var(--rule); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; }
.section-head a { font-size: .95rem; }
.section-sub { color: var(--ink-2); margin-top: 10px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 44px 28px; margin-top: 36px; }
.doc-card { display: flex; flex-direction: column; gap: 6px; color: var(--ink); text-decoration: none; }
.paper {
  display: block; aspect-ratio: 1 / 1.414; overflow: hidden; margin-bottom: 12px;
  background: var(--sheet); box-shadow: var(--shadow-sheet); border-radius: 2px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.paper img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.doc-card:hover .paper { transform: translateY(-4px) rotate(-.6deg); box-shadow: 0 2px 2px rgba(40, 32, 10, .06), 0 16px 30px -12px rgba(40, 32, 10, .3); }
.meta { font: 400 .76rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); }
.doc-title { font: 500 1.2rem/1.25 var(--serif); }
.doc-card:hover .doc-title { text-decoration: underline; text-decoration-color: var(--mark); text-decoration-thickness: 3px; text-underline-offset: .15em; }

/* ---------- FAQ ---------- */
.faq { padding-block: 72px; border-top: 1px solid var(--rule); }
.faq h2 { margin-bottom: 24px; }
.faq details { max-width: 780px; border-top: 1px solid var(--rule); }
.faq details:last-of-type { border-bottom: 1px solid var(--rule); }
.faq summary { position: relative; list-style: none; cursor: pointer; padding: 20px 44px 20px 0; font: 500 1.2rem/1.35 var(--serif); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font: 400 1.4rem var(--mono); color: var(--ink-2); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 22px; color: var(--ink-2); max-width: 40em; }

/* ---------- chiusura + footer ---------- */
.closing { display: grid; gap: 14px; justify-items: start; padding-block: 80px 96px; border-top: 1px solid var(--rule); }
.closing p { color: var(--ink-2); margin-bottom: 10px; }
.foot { background: var(--paper-2); border-top: 1px solid var(--rule); }
.foot-inner { display: grid; gap: 6px; padding-block: 36px 44px; font-size: .95rem; color: var(--ink-2); }
.foot .brand { font-size: 1.15rem; color: var(--ink); }
.small { margin-top: 8px; font-size: .82rem; color: var(--ink-3); }

/* ---------- portfolio ---------- */
.page-head { padding-block: 56px 8px; }
.page-head h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 400; }
.page-head + .wrap { padding-bottom: 96px; }
.search { display: flex; gap: 8px; max-width: 520px; margin-top: 28px; }
.search input {
  flex: 1; min-width: 0; padding: .7em 1.1em; font: 400 1rem var(--sans); color: var(--ink);
  background: var(--sheet); border: 1.5px solid var(--rule); border-radius: 999px;
}
.search input:focus { outline: none; border-color: var(--ink); }
.search button { padding: .7em 1.2em; font: 500 .95rem var(--sans); color: var(--paper); background: var(--ink); border: 1.5px solid var(--ink); border-radius: 999px; cursor: pointer; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.filters a { padding: .4em .95em; font-size: .9rem; color: var(--ink); text-decoration: none; border: 1px solid var(--rule); border-radius: 999px; }
.filters a span { margin-left: 2px; font: .8em var(--mono); color: var(--ink-3); }
.filters a:hover { border-color: var(--ink); }
.filters a[aria-current] { background: var(--mark); border-color: var(--mark); }
.filters a[aria-current] span { color: var(--ink-2); }
.empty { display: grid; gap: 16px; justify-items: start; padding-block: 40px; color: var(--ink-2); }
.empty-page { padding-bottom: 120px; }
.empty-page .section-sub { margin-bottom: 24px; }

/* ---------- pagina documento ---------- */
.doc { display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr); gap: 56px; align-items: start; padding-block: 40px 96px; }
.doc-side { position: sticky; top: 100px; display: grid; gap: 14px; justify-items: start; }
.back { margin-bottom: 18px; font-size: .92rem; color: var(--ink-2); text-decoration: none; }
.back:hover { color: var(--ink); }
.doc-side h1 { font-size: clamp(1.9rem, 3vw, 2.5rem); font-weight: 400; }
.doc-desc { color: var(--ink-2); }
.facts { display: flex; gap: 28px; width: 100%; margin: 10px 0 14px; padding: 14px 0; border-block: 1px solid var(--rule); }
.facts dt { font: .72rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-3); }
.facts dd { margin: 2px 0 0; font: 500 1.05rem/1.3 var(--serif); }
.doc-pages { display: grid; gap: 32px; max-width: 820px; }
.page { position: relative; margin: 0; background: var(--sheet); box-shadow: var(--shadow-sheet); border-radius: 2px; }
.page img { width: 100%; -webkit-user-select: none; user-select: none; -webkit-user-drag: none; }
.page figcaption { position: absolute; right: 12px; bottom: 10px; z-index: 1; padding: 2px 6px; font: .75rem var(--mono); color: var(--ink-3); background: rgba(255, 253, 248, .88); }

.locked { margin-top: 8px; padding-top: 32px; border-top: 1px dashed var(--ink-3); }
.locked-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px 16px; align-items: center; }
.locked-head h2 { font-size: 1.5rem; font-weight: 500; }
.locked-head p { margin-top: 2px; font-size: .95rem; color: var(--ink-2); }
.locked-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 16px; margin-top: 24px; }
.locked-page { overflow: hidden; aspect-ratio: 1 / 1.414; }
.locked-page img { height: 100%; object-fit: cover; opacity: .8; }
.locked-page::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(-45deg, transparent 0 9px, rgba(29, 27, 22, .045) 9px 10px); }
.locked-more {
  display: flex; flex-direction: column; align-items: center; justify-content: center; aspect-ratio: 1 / 1.414;
  font: .75rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2);
  border: 1.5px dashed var(--rule); border-radius: 2px;
}
.locked-more span { font: 400 2rem/1.1 var(--serif); color: var(--ink); text-transform: none; letter-spacing: 0; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-block: 44px 60px; }
  .hero-sheets { max-width: 340px; }
  .steps { grid-template-columns: 1fr; gap: 28px; padding-block: 56px; }
  .steps-intro { position: static; }
  .doc { grid-template-columns: 1fr; gap: 32px; padding-top: 24px; }
  .doc-side { position: static; }
}
@media (max-width: 640px) {
  .wrap { padding-inline: 16px; }
  .top nav { gap: 14px; }
  .top nav a[href="/#come-funziona"] { display: none; }
  .steps-list li { grid-template-columns: 44px minmax(0, 1fr); gap: 12px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 16px; }
  .doc-title { font-size: 1.02rem; }
  .showcase, .faq { padding-block: 56px; }
  .closing { padding-block: 56px 72px; }
  .locked-head { grid-template-columns: auto minmax(0, 1fr); }
  .locked-head .btn { grid-column: 1 / -1; justify-self: start; }
  .locked-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
}
@media (max-width: 440px) {
  .top-inner { gap: 10px; }
  .brand { font-size: 1.12rem; }
  .top nav { gap: 12px; font-size: .9rem; }
  .top .btn-sm { padding: .5em .85em; }
}
@media (max-width: 360px) {
  .top nav a[href="/portfolio"] { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}