/* La stanza degli sceneggiatori: base, layout, the shell and form controls. Colours live in tokens.css.
   Things are told apart by space, tone and type, not by lines. */
* { box-sizing: border-box; }
html { font-size: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 1rem/1.55 var(--sans); -webkit-text-size-adjust: 100%;
}
h1, h2, h3 { line-height: 1.25; margin: 0; }
h1 { font: 600 1.75rem/1.2 var(--serif); letter-spacing: -.01em; }
h2 { font: 600 1.25rem/1.25 var(--serif); }
h3 { font-size: 1rem; font-weight: 650; }
p { margin: 0; max-width: 68ch; }
a { color: var(--ink); text-decoration-color: var(--faint); text-underline-offset: .2em; }
a:hover { text-decoration-color: var(--ink); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 3px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: var(--s4); top: var(--s4); z-index: 9; background: var(--raised); padding: var(--s2); }
main { padding: var(--s5) max(var(--s4), env(safe-area-inset-left)) 4rem; max-width: 76rem; margin: 0 auto; }
.narrow { max-width: 30rem; margin: var(--s6) auto; }
.signin { margin-top: 12vh; }
[hidden] { display: none !important; }

/* type and spacing helpers */
.eyebrow, fieldset.group > legend { font-size: .75rem; font-weight: 650; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.lead { font-size: 1.1rem; max-width: 60ch; }
.num { font-variant-numeric: tabular-nums; text-align: right; }
.prewrap { white-space: pre-wrap; }
.script { font-family: var(--script); }
.who-name { font-weight: 600; color: var(--ink); }

/* layout */
.stack { display: flex; flex-direction: column; gap: var(--s4); }
.stack.tight, .tight { gap: var(--s1); }
.row { display: flex; flex-direction: row; flex-wrap: wrap; gap: var(--s3); align-items: center; }
.row.between { justify-content: space-between; }
.grow { flex: 1 1 auto; }
.cols { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.cols.wide { grid-template-columns: repeat(auto-fill, minmax(24rem, 1fr)); }
.grid.two { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); }
.split { display: grid; gap: var(--s5); grid-template-columns: minmax(0, 1fr) 19rem; align-items: start; }
.rail { position: sticky; top: 4.5rem; }
@media (max-width: 52rem) { .split { grid-template-columns: minmax(0, 1fr); } .rail { position: static; } }
.scroll-x { overflow-x: auto; }
.scroll { overflow: auto; max-height: 28rem; }
form.inline { display: inline; margin: 0; }
ul.plain, ol.plain { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--s2); }

/* header: ink on paper, the current destination underlined */
.top {
  --gutter: max(var(--s4), calc((100% - 76rem) / 2));
  position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; gap: var(--s2) var(--s5); align-items: center;
  padding: var(--s3) var(--gutter); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px);
}
.brand { font: 700 1rem var(--serif); letter-spacing: .12em; text-decoration: none; }
.menu { display: flex; flex-wrap: wrap; gap: var(--s1) var(--s4); align-items: center; flex: 1 1 auto; }
.menu > a, .menu summary { color: var(--muted); text-decoration: none; cursor: pointer; list-style: none; padding: var(--s1) 0; }
.menu > a:hover, .menu summary:hover { color: var(--ink); }
.menu > a[aria-current="page"] {
  color: var(--ink); font-weight: 650; text-decoration: underline 2px; text-underline-offset: 6px;
}
.who { display: flex; flex-wrap: wrap; gap: var(--s3); align-items: center; font-size: .9rem; color: var(--muted); }
.ask-bar { gap: var(--s3); min-height: 2rem; padding-block: .2rem; border-radius: var(--r-pill); font-weight: 500; color: var(--muted); }
.ask-bar kbd { font: 600 .75rem var(--sans); padding: 0 .4rem; border-radius: var(--r-sm); background: var(--bg); color: var(--ink); }
button.icon { min-width: 2rem; min-height: 2rem; padding: 0; border-radius: var(--r-pill); }
.section-nav {
  --gutter: max(var(--s4), calc((100% - 76rem) / 2));
  display: flex; flex-wrap: wrap; gap: var(--s1) var(--s2); padding: 0 var(--gutter) var(--s2); font-size: .875rem;
}
.section-nav a { padding: .15rem .7rem; border-radius: var(--r-pill); color: var(--muted); text-decoration: none; }
.section-nav a:hover { color: var(--ink); }
.section-nav a[aria-current="page"] { background: var(--sunk); color: var(--ink); font-weight: 650; }
.banner { background: var(--sunk); padding: var(--s2) var(--s4); font-weight: 600; display: flex; gap: var(--s4); flex-wrap: wrap; align-items: center; }

/* a menu that opens in place: <details class="menu-pop"><summary>…</summary><div class="pop">…</div></details> */
.menu-pop { position: relative; }
.menu-pop > summary { list-style: none; cursor: pointer; }
.menu-pop > summary::-webkit-details-marker { display: none; }
.more > summary::after { content: " ▾"; font-size: .8em; }
.menu-pop > .pop {
  position: absolute; z-index: 6; top: calc(100% + var(--s1)); left: 0; min-width: 15rem; max-width: calc(100vw - 2rem);
  display: flex; flex-direction: column; padding: var(--s2); background: var(--raised); color: var(--ink);
  border-radius: var(--r-lg); box-shadow: var(--shadow-float);
}
/* every entry is a row of the menu's width; only a primary action keeps its filled look */
.menu-pop .pop > form { display: flex; }
.menu-pop .pop > a, .menu-pop .pop > form > button { flex: 1; justify-content: flex-start; min-height: 0; padding: var(--s2) var(--s3); border-radius: var(--r-sm); background: none; font-weight: 500; text-decoration: none; color: var(--ink); text-align: left; }
.menu-pop .pop > form > button.primary { margin-block: 1px; background: var(--action); color: var(--action-ink); font-weight: 600; }
.menu-pop .pop > a:hover, .menu-pop .pop > form > button:not(.primary):hover { background: var(--sunk); }
.menu-pop .pop > .eyebrow { padding: var(--s3) var(--s3) var(--s1); }
.menu-pop .pop > .eyebrow:first-child { padding-top: var(--s2); }
/* the help line of a menu keeps room for three lines, so the menu does not jump as the pointer moves */
.menu-pop > .pop:has(> .pop-help) { min-width: min(22rem, calc(100vw - 2rem)); }
.pop-help { margin: var(--s2) 0 0; padding: var(--s2) var(--s3) 0; border-top: 1px solid var(--hair); line-height: 1.4; min-height: calc(3 * 1.4em + var(--s2)); }
@media (max-width: 40rem) { .menu-pop { position: static; } .menu-pop > .pop { left: var(--s4); right: var(--s4); } }

/* controls: tonal buttons, fields that are a filled well with one line under them */
label { display: flex; flex-direction: column; gap: var(--s1); font-weight: 500; font-size: .9rem; }
label.check, .choice { flex-direction: row; align-items: center; gap: var(--s2); font-weight: 500; }
input, select, textarea {
  font: inherit; color: inherit; background: var(--sunk); border: 0; border-bottom: 1px solid var(--faint);
  border-radius: var(--r-sm) var(--r-sm) 0 0; padding: var(--s2) .65rem; max-width: 100%;
}
input[type="checkbox"], input[type="radio"] { width: 1.1rem; height: 1.1rem; padding: 0; accent-color: var(--ink); }
::placeholder { color: var(--muted); opacity: 1; }
textarea { min-height: 7rem; resize: vertical; width: 100%; }
td textarea { min-height: 3.5rem; min-width: 14rem; }
fieldset.group { border: 0; padding: 0; margin: 0; min-width: 0; display: flex; flex-direction: column; gap: var(--s4); }
fieldset.group > legend { padding: 0; margin-bottom: var(--s2); }
.plain-fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.rowset { display: grid; gap: var(--s2); grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); padding-bottom: var(--s2); }
button, .button {
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  min-height: 2.25rem; padding: .4rem .95rem; border: 0; border-radius: var(--r-md); background: var(--sunk);
}
button:hover, .button:hover { background: color-mix(in srgb, var(--sunk), var(--ink) 4%); }
button.primary, .button.primary { background: var(--action); color: var(--action-ink); }
button.primary:hover, .button.primary:hover { background: color-mix(in srgb, var(--action), var(--action-ink) 14%); }
button.ai, .button.ai, button[data-avvia] { background: var(--ai-tint); color: var(--ai); }
button.ai:hover, .button.ai:hover, button[data-avvia]:hover { background: color-mix(in srgb, var(--ai-tint), var(--ai) 8%); }
button.ai::before, .button.ai::before, button[data-avvia]::before { content: "✦"; }
button.danger { background: var(--bad-tint); color: var(--bad); }
button.link { background: none; min-height: 0; padding: 0; font-weight: 500; text-decoration: underline; text-underline-offset: .2em; }
button[disabled], button.primary[disabled], .button.primary[disabled] { background: var(--sunk); color: var(--muted); cursor: not-allowed; }
.file-pick { position: relative; overflow: hidden; cursor: pointer; }
.file-pick input[type="file"] { position: absolute; inset: 0; opacity: 0; width: 100%; cursor: pointer; }
.file-pick:focus-within { outline: 2px solid var(--focus); outline-offset: 2px; }