/* ============================================================
   Folio — design system
   Editorial "school archive": warm paper, printer's ink,
   hairline rules, correction marks. No gradients, no blur,
   no glass. Print first.
   ============================================================ */

:root {
  --paper:        #f6f1e6;
  --paper-deep:   #ece5d2;
  --paper-light:  #fbf8f0;
  --ink:          #1c1f1d;
  --ink-soft:     #5c625b;
  --ink-faint:    #8a8d80;
  --rule:         #ddd2bb;
  --rule-strong:  #c3b494;
  --red:          #c13d2a;
  --red-dark:     #9c2f1f;
  --green:        #2f6b4f;
  --blue:         #2a4a72;
  --slate:        #3d4a44;

  --ff-display: "Fraunces", "Iowan Old Style", "Palatino", Georgia, serif;
  --ff-body:    "Instrument Sans", ui-sans-serif, system-ui, sans-serif;
  --ff-mono:    "Spline Sans Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.035'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  background-image: var(--grain);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--red); color: #fdf9ef; }

a { color: var(--red-dark); text-decoration-color: var(--rule-strong); text-underline-offset: 3px; }
a:hover { color: var(--red); text-decoration-color: currentColor; }

h1, h2, h3, h4 {
  font-family: var(--ff-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0 0 .45em;
  letter-spacing: -.01em;
}

h1 { font-size: clamp(2.6rem, 6.5vw, 4.6rem); font-weight: 650; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); font-weight: 620; }
h3 { font-size: 1.32rem; font-weight: 600; }
h4 { font-size: 1.06rem; font-weight: 620; text-transform: uppercase; letter-spacing: .08em; font-family: var(--ff-body); }

code, kbd, pre, samp {
  font-family: var(--ff-mono);
  font-size: .9em;
}

code {
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: .08em .35em;
}

pre {
  background: var(--ink);
  color: #ece5d2;
  padding: 1.25rem 1.4rem;
  border-radius: 6px;
  overflow: auto;
  font-size: .82rem;
  line-height: 1.6;
  box-shadow: 2px 3px 0 var(--rule-strong);
}
pre code { background: none; border: 0; padding: 0; color: inherit; }

blockquote {
  margin: 1.4rem 0;
  padding: .4rem 0 .4rem 1.1rem;
  border-left: 3px solid var(--red);
  font-family: var(--ff-display);
  font-style: italic;
  font-size: 1.12rem;
  color: var(--ink-soft);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule-strong);
  margin: 2.4rem 0;
}

img { max-width: 100%; }

/* ------- layout ------- */
.page {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

.container-narrow { max-width: 780px; }
.container-wide { max-width: 1280px; }

/* ------- masthead / nav ------- */
.masthead {
  border-bottom: 1px solid var(--ink);
  background: var(--paper-light);
  background-image: var(--grain);
}
.masto-inner {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: .9rem 0;
}
.brand-word {
  font-family: var(--ff-display);
  font-weight: 700;
  letter-spacing: .01em;
  font-size: 1.7rem;
  line-height: 1;
  text-decoration: none;
  color: var(--ink);
}
.brand-word em {
  font-style: italic;
  color: var(--red);
}
.brand-sub {
  font-family: var(--ff-mono);
  font-size: .68rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: .35rem;
}

.nav {
  display: flex;
  align-items: stretch;
}
.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}
.nav-links li { display: flex; }
.nav-links a {
  display: flex;
  align-items: center;
  padding: 0 clamp(.85rem, 1.6vw, 1.4rem);
  font-family: var(--ff-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  border-left: 1px solid var(--rule);
}
.nav-links a:hover { background: var(--paper-deep); color: var(--red-dark); }
.nav-links a[aria-current="page"] {
  background: var(--ink);
  color: var(--paper); 
}
.nav-links a .idx {
  color: var(--red);
  margin-right: .45rem;
  font-size: .72rem;
}
.nav-links a[aria-current="page"] .idx { color: var(--paper-light); }

@media (max-width: 860px) {
  .masto-inner { flex-direction: column; gap: 0; }
  .nav { overflow-x: auto; }
  .nav-links { width: max-content; }
  .nav-links a { padding: .8rem 1rem; }
}

/* ------- hero ------- */
.hero {
  padding: clamp(3.2rem, 9vw, 6.5rem) 0 clamp(2.6rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--rule-strong);
  position: relative;
}
.hero::after {
  content: "N. 001 — Anno scolastico 2026/27";
  position: absolute;
  right: 0;
  top: 1.4rem;
  font-family: var(--ff-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
@media (max-width: 640px) { .hero::after { display: none; } }
.hero .lede {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  line-height: 1.4;
  max-width: 46ch;
  color: var(--ink-soft);
  font-family: var(--ff-display);
}
.hero h1 .rusty { color: var(--red); font-style: italic; }
.hero .eyebrow {
  font-family: var(--ff-mono);
  font-size: .76rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.1rem;
}
.eyebrow::before { content: "◆ "; color: var(--red); }

/* ------- buttons / actions ------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--ff-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: .78rem 1.25rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  border-radius: 3px;
  transition: background .12s ease, color .12s ease, box-shadow .12s ease;
  box-shadow: 2px 2px 0 transparent;
}
.btn:hover { background: var(--paper-deep); color: var(--red-dark); box-shadow: 3px 3px 0 var(--rule-strong); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--red-dark); color: var(--paper-light); box-shadow: 3px 3px 0 var(--rule-strong); }
.btn-red { background: var(--red); border-color: var(--red-dark); color: #fdf9ef; }
.btn-red:hover { background: var(--red-dark); color: #fff; }
.btn-sm { padding: .5rem .85rem; font-size: .74rem; }
.btn[disabled] { opacity: .45; pointer-events: none; }

/* ------- plates & rules ------- */
.plate {
  border: 1px solid var(--ink);
  border-radius: 5px;
  padding: clamp(1.2rem, 3vw, 2rem);
  background: var(--paper-light);
  background-image: var(--grain);
  box-shadow: 4px 4px 0 var(--rule-strong);
  position: relative;
}
.plate::before {
  content: attr(data-tag);
  position: absolute;
  top: -11px;
  left: 14px;
  background: var(--paper);
  padding: 0 10px;
  font-family: var(--ff-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red-dark);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
}

.section { padding: clamp(2.4rem, 6vw, 4.5rem) 0; border-bottom: 1px solid var(--rule-strong); }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  border-bottom: 3px double var(--rule-strong);
  padding-bottom: .7rem;
  margin-bottom: 2rem;
}
.section-head .num {
  font-family: var(--ff-display);
  font-style: italic;
  color: var(--red);
  font-size: 1.2rem;
}

/* ------- stats ------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.4rem;
  margin: 2rem 0;
}
.stat {
  border-top: 2px solid var(--ink);
  padding-top: .8rem;
}
.stat .n {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
}
.stat .l {
  font-family: var(--ff-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--ink-soft);
  margin-top: .5rem;
}

/* ------- ledger / table ------- */
.ledger { width: 100%; border-collapse: collapse; }
.ledger th {
  font-family: var(--ff-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: left;
  padding: .7rem .5rem;
  border-bottom: 2px solid var(--ink);
}
.ledger td {
  padding: .85rem .5rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.ledger tr:hover td { background: var(--paper-deep); }
@media (max-width: 760px) {
  .ledger thead { display: none; }
  .ledger, .ledger tbody, .ledger tr { display: block; }
  .ledger tr { border-bottom: 2px solid var(--ink); padding: .65rem 0; }
  .ledger td { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 0; padding: .35rem 0; }
  .ledger td::before { content: attr(data-th); font-family: var(--ff-mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-faint); }
}

/* ------- badges ------- */
.badge {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .24rem .55rem;
  border-radius: 3px;
  border: 1px solid var(--rule-strong);
  background: var(--paper-light);
  color: var(--ink-soft);
  white-space: nowrap;
}
.badge-ok   { border-color: var(--green); color: var(--green); background: #eef3ea; }
.badge-web  { border-color: var(--blue); color: var(--blue); background: #edf1f6; }
.badge-token{ border-color: var(--red); color: var(--red-dark); background: #f8ece8; }
.badge-proxy{ border-color: #8a6d1f; color: #7a5f16; background: #f6efd9; }

/* ------- cards grid ------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.6rem;
}
.card {
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: var(--paper-light);
  background-image: var(--grain);
  padding: 1.4rem 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  box-shadow: 3px 3px 0 var(--rule-strong);
  text-decoration: none;
  color: var(--ink);
  position: relative;
}
.card:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--rule-strong); }
.card .tag {
  font-family: var(--ff-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red-dark);
}
.card h3 { font-size: 1.25rem; margin: 0; }
.card h3 em { font-style: italic; color: var(--red); }
.card p { color: var(--ink-soft); font-size: .95rem; margin: 0; }
.card .go { margin-top: auto; font-family: var(--ff-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--blue); }
.card .go::after { content: " →"; }

/* ------- reader console (app) ------- */
.console-shell { padding: clamp(1.6rem, 4vw, 3rem) 0 4rem; }

.field { margin-bottom: 1.15rem; }
.field label {
  display: block;
  font-family: var(--ff-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: .4rem;
}
.field label b { color: var(--red-dark); font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--paper-light);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: .72rem .85rem;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 2px rgba(42,74,114,.18);
}
.field .hint { font-size: .8rem; color: var(--ink-faint); margin-top: .35rem; }

.seg {
  display: flex;
  gap: 0;
  border: 1px solid var(--ink);
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
}
.seg button {
  font-family: var(--ff-mono);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .6rem .95rem;
  border: 0;
  border-right: 1px solid var(--ink);
  background: var(--paper-light);
  cursor: pointer;
  color: var(--ink-soft);
}
.seg button:last-child { border-right: 0; }
.seg button.on { background: var(--ink); color: var(--paper); }

.log {
  background: var(--ink);
  color: #c9d2c8;
  border-radius: 6px;
  font-family: var(--ff-mono);
  font-size: .8rem;
  line-height: 1.65;
  padding: 1rem 1.1rem;
  min-height: 120px;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.log .ok { color: #7fdb9a; }
.log .err { color: #ff8f7f; }
.log .dim { color: #6f7c74; }
.log b { color: #f0e8d8; }

.bookrow {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border: 1px solid var(--rule-strong);
  border-radius: 5px;
  background: var(--paper-light);
  padding: .85rem .95rem;
  margin-bottom: .6rem;
  cursor: pointer;
}
.bookrow:hover { border-color: var(--ink); box-shadow: 2px 2px 0 var(--rule-strong); }
.bookrow img { width: 52px; height: 68px; object-fit: cover; border: 1px solid var(--rule); background: var(--paper-deep); border-radius: 3px; flex: none; }
.bookrow .meta h4 { margin: 0 0 .15rem; font-size: 1rem; text-transform: none; letter-spacing: 0; }
.bookrow .meta .isbn { font-family: var(--ff-mono); font-size: .72rem; color: var(--ink-faint); }
.bookrow .meta .post { font-family: var(--ff-mono); font-size: .72rem; color: var(--red-dark); margin-top: .2rem; }

/* ------- footer colophon ------- */
.colophon {
  border-top: 1px solid var(--ink);
  margin-top: 3rem;
  padding: 2rem 0 3rem;
  color: var(--ink-soft);
  font-size: .85rem;
}
.colophon-inner { display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; justify-content: space-between; }
.colophon .mono { font-family: var(--ff-mono); font-size: .76rem; }
.colophon a { color: var(--ink-soft); }

/* ------- misc ------- */
.muted { color: var(--ink-soft); }
.small { font-size: .85rem; }
.mono { font-family: var(--ff-mono); }
.center { text-align: center; }
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.8rem; }

.pillrow { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }

.stamp {
  display: inline-block;
  border: 2px solid var(--red);
  color: var(--red-dark);
  border-radius: 4px;
  font-family: var(--ff-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  padding: .3rem .8rem;
  transform: rotate(-2deg);
  background: transparent;
}

.dotted { border: 2px dashed var(--rule-strong); }

.notice {
  border: 1px solid var(--green);
  background: #eef3ea;
  border-radius: 5px;
  padding: 1rem 1.2rem;
  font-size: .92rem;
}
.notice b { color: var(--green); }

.warn {
  border-left: 3px solid #8a6d1f;
  background: #f6efd9;
  padding: .9rem 1.1rem;
  border-radius: 0 5px 5px 0;
  font-size: .9rem;
}

details.acc { border: 1px solid var(--rule-strong); border-radius: 5px; margin-bottom: .6rem; background: var(--paper-light); }
details.acc summary { cursor: pointer; padding: .85rem 1rem; font-family: var(--ff-display); font-weight: 600; list-style: none; }
details.acc summary::before { content: "▸ "; color: var(--red); }
details.acc[open] summary::before { content: "▾ "; }
details.acc .acc-body { padding: .2rem 1rem 1rem 1.9rem; }

/* ------- desktop reader ------- */
.desk-top {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; border-bottom: 2px solid var(--ink); padding-bottom: .8rem; flex-wrap: wrap;
}
.desk-id { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.desk-id .mono { font-size: 1rem; color: var(--ink); }
.chip {
  font-size: .7rem; font-family: var(--ff-mono); padding: .3rem .65rem;
  border: 1px solid var(--rule-strong); border-radius: 999px; white-space: nowrap;
}
.chip.green { border-color: var(--green); color: var(--green); background: #eef3ea; }
.chip.blue  { border-color: var(--blue); color: var(--blue); background: #edf1f6; }
.chip.ink   { border-color: var(--rule-strong); color: var(--ink-soft); }

.accrow {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  border: 1px solid var(--rule); border-radius: 5px; padding: .7rem .95rem; margin-bottom: .5rem;
  background: var(--paper-light);
}
.acc-main { display: flex; flex-direction: column; gap: .15rem; }
.acc-side { display: flex; gap: .6rem; align-items: center; }
.accrow:hover { border-color: var(--ink); box-shadow: 2px 2px 0 var(--rule-strong); }

.shelf-row { display: flex; align-items: center; gap: 1rem; }
.book-actions { margin-left: auto; display: flex; gap: .5rem; flex-wrap: wrap; }
.shelf-row .meta { flex: 1; min-width: 0; }
.shelf-row .meta h4 { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

#log { margin-top: 1rem; }
#cred-fields { margin-top: .25rem; }