/* Orario Marconi — foglio di quaderno a quadretti (di notte: lavagna) */
:root {
  --paper: #F1F4F9;  --sheet: #FCFDFF;  --grid: #DCE5F2;
  --ink: #1C2B45;    --muted: #5B6B85;  --margin: #E5495F;
  --accent: #2F4FD8; --on-accent: #fff; --good: #1F8F5F;
  --hs: 90%; --hl: 82%; --hb: 42%;       /* evidenziatori: saturazione / chiarezza / bordo */
  --mono: "DM Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Bricolage Grotesque", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0F1513; --sheet: #151F1C; --grid: #22312D;
    --ink: #EDEFE4;   --muted: #9DB0AA; --margin: #FF8A98;
    --accent: #9DBBFF; --on-accent: #0C1426; --good: #5FD39C;
    --hs: 42%; --hl: 27%; --hb: 62%;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1rem/1.5 var(--sans); }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .9em; background: color-mix(in srgb, var(--ink) 9%, transparent); padding: .05rem .35rem; border-radius: 3px; word-break: break-all; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* barra */
.bar { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; padding: .7rem 1.1rem; border-bottom: 1px solid var(--grid); background: var(--paper); }
.brand { font-weight: 800; font-size: 1.1rem; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.bar nav { display: flex; gap: .25rem; flex: 1; overflow-x: auto; }
.bar nav a { color: var(--muted); text-decoration: none; padding: .35rem .7rem; border-bottom: 2px solid transparent; white-space: nowrap; }
.bar nav a:hover { color: var(--ink); }
.bar nav a.on { color: var(--ink); border-bottom-color: var(--margin); font-weight: 600; }
.who { display: flex; align-items: center; gap: .6rem; margin: 0; color: var(--muted); font-size: .9rem; }

/* il foglio */
.sheet {
  --u: 24px; --gut: 3.25rem;
  max-width: 980px; margin: 1.25rem auto 3rem; border: 1px solid var(--grid); border-radius: 3px;
  padding: 1.5rem 1.5rem 3rem calc(var(--gut) + 1.25rem);
  background-color: var(--sheet);
  background-image:
    linear-gradient(90deg, transparent var(--gut), var(--margin) var(--gut), var(--margin) calc(var(--gut) + 2px), transparent calc(var(--gut) + 2px)),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 100% 100%, var(--u) var(--u), var(--u) var(--u);
}
h1 { font-size: 1.7rem; line-height: 1.15; font-weight: 800; letter-spacing: -.02em; margin: .2rem 0 1rem; }
h2 { font-size: 1.15rem; font-weight: 600; margin: 2rem 0 .6rem; }
.dayhead { font-size: clamp(1.7rem, 5vw, 2.6rem); margin-top: 1rem; }
.dayhead span { font: 400 .95rem var(--mono); color: var(--muted); margin-left: .5rem; }
.empty, .hint, .foot { color: var(--muted); }
.foot { margin-top: 1.25rem; font-size: .95rem; }
.hint { font-size: .9rem; max-width: 38rem; }
.narrow { max-width: 27rem; }

/* controlli */
input, select, button { font: inherit; color: inherit; }
input:not([type=checkbox]), select { width: 100%; padding: .55rem .7rem; background: var(--sheet); border: 1px solid color-mix(in srgb, var(--ink) 35%, transparent); border-radius: 4px; }
label { display: block; font-weight: 600; font-size: .92rem; }
label small { font-weight: 400; color: var(--muted); }
label input:not([type=checkbox]), label select { margin-top: .3rem; font-weight: 400; }
.check { display: flex; gap: .55rem; align-items: flex-start; font-weight: 400; }
.check input { margin-top: .3rem; accent-color: var(--accent); }
.stack { display: grid; gap: 1rem; margin: 1rem 0; }
.btn { display: inline-block; background: var(--accent); color: var(--on-accent); border: 0; border-radius: 4px; padding: .6rem 1.1rem; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.link { background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: inherit; }
.link.danger { color: var(--margin); }
.note { border-left: 4px solid var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); padding: .6rem .9rem; margin: .8rem 0; max-width: 38rem; }
.note.ok { border-color: var(--good); background: color-mix(in srgb, var(--good) 12%, transparent); }
.note.err { border-color: var(--margin); background: color-mix(in srgb, var(--margin) 12%, transparent); }
.note p { margin: .3rem 0; }

/* selezione classe e viste */
.picker { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; margin-bottom: 1rem; }
.picker label { margin: 0; }
.picker select { width: auto; min-width: 9rem; margin: 0; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .9rem; }
.seg { display: inline-flex; border: 1px solid var(--ink); border-radius: 4px; overflow: hidden; }
.seg a { padding: .35rem .9rem; color: var(--ink); text-decoration: none; font-weight: 600; font-size: .92rem; }
.seg a.on { background: var(--ink); color: var(--sheet); }
.days { display: flex; gap: .4rem; flex-wrap: wrap; }
.days a { position: relative; padding: .4rem .85rem; border: 1px solid color-mix(in srgb, var(--ink) 30%, transparent); border-radius: 4px; color: var(--ink); text-decoration: none; font-weight: 600; background: var(--sheet); }
.days a.on { background: var(--ink); color: var(--sheet); border-color: var(--ink); }
.days a.today::after { content: ""; position: absolute; top: 4px; right: 5px; width: 6px; height: 6px; border-radius: 50%; background: var(--margin); }

/* lezioni: ogni materia e' un evidenziatore */
.lessons { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .55rem; }
.lessons li { position: relative; display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; min-height: 3rem; }
.hr { font: 500 1.05rem var(--mono); color: var(--muted); }
.lessons .hr { position: absolute; left: calc(-1 * (var(--gut) + 1.25rem)); width: var(--gut); text-align: center; }
.slots { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.slot { display: flex; align-items: baseline; flex-wrap: wrap; gap: .15rem .6rem; padding: .55rem .85rem; border-radius: 6px; border-left: 5px solid hsl(var(--h) 70% var(--hb));
  background: hsl(var(--h) var(--hs) var(--hl)); color: var(--ink); }
.slot strong { font-weight: 600; }
.slot em { font-style: normal; color: color-mix(in srgb, var(--ink) 70%, transparent); font-size: .9rem; }
.room { font: 500 .85rem var(--mono); background: color-mix(in srgb, var(--ink) 12%, transparent); padding: .05rem .4rem; border-radius: 3px; }
.time { font: 400 .82rem var(--mono); color: var(--muted); }
.slot.mini { padding: .3rem .5rem; gap: .1rem .4rem; margin: 2px 0; border-left-width: 4px; }
.slot.mini b { font-weight: 600; }

/* tabelle (settimana, confronto, admin) */
.scroll { overflow-x: auto; margin: 1rem 0 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: separate; border-spacing: 0; width: 100%; }
.week th, .week td, .cmp th, .cmp td { padding: .25rem .35rem; vertical-align: top; text-align: left; min-width: 6.2rem; }
.week thead th, .cmp thead th { font-weight: 800; padding-bottom: .5rem; }
.week thead a { color: var(--ink); text-decoration: none; }
.week th.hr, .cmp th.hr { min-width: 0; width: 2.2rem; text-align: center; padding-top: .6rem; }
.week .today { background: color-mix(in srgb, var(--margin) 9%, transparent); }
.cmp tr.same td { background: color-mix(in srgb, var(--good) 11%, transparent); }
.none { color: var(--muted); }
.list th { text-align: left; font-weight: 600; padding: .4rem .6rem; border-bottom: 2px solid var(--ink); font-size: .9rem; }
.list td { padding: .55rem .6rem; border-bottom: 1px solid var(--grid); vertical-align: middle; }
.list td small { display: block; color: var(--muted); font-family: var(--mono); font-size: .78rem; }
.list tr.off { opacity: .55; }
.acts { display: flex; flex-wrap: wrap; gap: .3rem .9rem; font-size: .9rem; }
.acts form { margin: 0; }
.inline { display: flex; flex-wrap: wrap; gap: .8rem; align-items: flex-end; margin: 1rem 0 .4rem; }
.inline label { flex: 0 1 18rem; }
.creds code { font-size: 1.05rem; }

/* mobile */
@media (max-width: 640px) {
  .sheet { --gut: 2.5rem; margin: 0; border-radius: 0; border-left: 0; border-right: 0; padding: 1rem .8rem 2.5rem calc(var(--gut) + .8rem); min-height: 80vh; }
  .lessons .hr { left: calc(-1 * (var(--gut) + .8rem)); }
  .bar { gap: .5rem 1rem; padding: .6rem .8rem; }
  .bar nav { order: 3; flex-basis: 100%; }
  .slot { width: 100%; }
  .slots { flex: 1; min-width: 0; }
}