/* ═════════ kurs ═════════ */
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 10px 0 26px; }
.tiles > div { background: var(--soft); border-radius: 16px; padding: 16px; }
.tiles b { display: block; font-size: 28px; letter-spacing: -.03em; line-height: 1.1; }
.tiles b span { font-size: 16px; color: var(--muted); }
.tiles > div > span { color: var(--muted); font-size: 13px; }
.kdz { margin-top: 26px; }
.kdz-h { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.kdz h3, .h3 { font-size: 18px; margin: 0 0 8px; letter-spacing: -.01em; }
.lrow { display: grid; grid-template-columns: 30px 1fr 110px 44px; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.lrow:hover .nm { text-decoration: underline; }
.lrow .nm { display: block; font-weight: 500; }
.lst { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 600; box-shadow: inset 0 0 0 1px var(--line); color: var(--muted); }
.lst.half { box-shadow: inset 0 0 0 1.5px var(--ink); color: var(--ink); }
.lst.ok { background: var(--ok); color: #fff; box-shadow: none; }
.crumb { color: var(--muted); font-size: 13px; margin: 18px 0 8px; }
.crumb + h2 { margin-top: 0; }
.crumb a { color: var(--muted); }
.lcard { background: var(--soft); border-radius: 20px; padding: 22px 24px; margin: 18px 0; }
.lcard h3 { margin: 0 0 10px; font-size: 18px; }
.lcard h4 { margin: 18px 0 8px; font-size: 14px; }
.lcard p { margin: 0 0 10px; }
.rules-l { margin: 0; padding: 0; list-style: none; }
.rules-l li { background: var(--bg); border-radius: 12px; padding: 10px 14px; margin: 6px 0; line-height: 1.8; }
.tipbox { margin-top: 12px; font-size: 14px; color: var(--muted); }
.tipbox b { color: var(--ink); }
.errs { margin: 0; padding-left: 18px; }
.errs li { margin: 4px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips a { background: var(--bg); border-radius: 999px; padding: 6px 12px; font-size: 13px; text-decoration: none; }
.chips a:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.lnav { display: flex; justify-content: space-between; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
section > .h3 { margin-top: 22px; }

/* ═════════ arkusze CKE ═════════ */
.srow { display: grid; grid-template-columns: 1fr 190px auto; gap: 16px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); }
.snm { text-decoration: none; }
.snm b { display: block; }
.sprog { display: grid; gap: 4px; }
.slinks { font-size: 13px; color: var(--muted); }
.slinks a { color: var(--muted); }
a.xhead { text-decoration: none; color: inherit; border-bottom: 1px solid var(--line); }
.xmark.half { background: var(--soft); color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.ckeimg { background: #fff; border-radius: 18px; box-shadow: 0 0 0 1px var(--line); padding: 14px; margin-bottom: 14px; }
.ckeimg img { display: block; width: 100%; height: auto; }
.ckeimg img + img { margin-top: 8px; }
.abcd { display: flex; gap: 8px; flex-wrap: wrap; }
.abcd .btn { min-width: 64px; justify-content: center; }
.key { margin: 12px 0; font-size: 15px; }
.sol { margin-top: 10px; }
.sol summary { cursor: pointer; font-weight: 600; margin-bottom: 10px; }
.sol img { display: block; width: 100%; height: auto; background: #fff; border-radius: 12px; box-shadow: 0 0 0 1px var(--line); margin-bottom: 8px; }
.helpers { margin-top: 16px; }
.meta a { color: var(--muted); }

/* ═════════ przewodnik ═════════ */
#guidePanel { position: fixed; top: 0; right: 0; bottom: 0; width: min(420px, 100vw); background: var(--bg); z-index: 50;
  box-shadow: -1px 0 0 var(--line), -24px 0 48px -24px rgba(0, 0, 0, .25); display: flex; flex-direction: column;
  transform: translateX(105%); transition: transform .22s ease; }
#guidePanel.open { transform: none; }
.gp-h { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.gp-x { border: 0; background: var(--soft); width: 30px; height: 30px; border-radius: 50%; cursor: pointer; }
.gp-b { flex: 1; overflow: auto; padding: 16px 18px; }
.gp-lesson { background: var(--soft); border-radius: 16px; padding: 14px 16px; font-size: 14px; }
.gp-lesson ul { padding-left: 18px; margin: 8px 0; }
.gp-lesson li { margin: 4px 0; line-height: 1.7; }
.gp-chat { display: grid; gap: 8px; margin-top: 14px; }
.gm { padding: 10px 14px; border-radius: 16px; max-width: 88%; font-size: 14.5px; line-height: 1.55; }
.gm.u { justify-self: end; background: var(--ink); color: var(--bg); border-bottom-right-radius: 4px; }
.gm.a { justify-self: start; background: var(--soft); border-bottom-left-radius: 4px; }
.gm.typing { color: var(--muted); }
.gp-f { border-top: 1px solid var(--line); padding: 12px 18px 16px; }
.gp-quick { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.gp-quick button { border: 0; background: var(--soft); border-radius: 999px; padding: 6px 11px; font-size: 12.5px; cursor: pointer; }
.gp-quick button:disabled { opacity: .45; cursor: default; }
#gpForm { display: flex; gap: 8px; }
#gpIn { flex: 1; border: 1px solid var(--line); border-radius: 999px; padding: 9px 14px; font: inherit; background: var(--bg); color: var(--ink); }

/* ═════════ aktywność ═════════ */
.activity { background: var(--soft); border-radius: 18px; padding: 16px 18px; margin-bottom: 10px; }
.days { display: grid; grid-template-columns: repeat(14, 1fr); gap: 6px; margin-top: 10px; align-items: end; }
.day { display: grid; gap: 4px; justify-items: center; }
.day .col { width: 100%; max-width: 28px; height: 70px; display: flex; align-items: flex-end; }
.day .col i { display: block; width: 100%; min-height: 2px; background: var(--ink); border-radius: 4px 4px 0 0; }
.day .dl { font-size: 11px; color: var(--muted); }

@media (max-width: 760px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .lrow { grid-template-columns: 30px 1fr 40px; }
  .lrow .bar { display: none; }
  .srow { grid-template-columns: 1fr; gap: 6px; }
  .lcard { padding: 18px; }
  .ckeimg { padding: 8px; border-radius: 12px; }
}
.gapnote { display: block; margin-top: 2px; }

/* arkusze CKE: zakładki formuł i karty arkuszy */
.ftabs { display: inline-flex; gap: 4px; padding: 4px; background: var(--soft); border-radius: 999px; margin: 6px 0 16px; max-width: 100%; overflow-x: auto; }
.ftabs button { border: 0; background: none; border-radius: 999px; padding: 9px 16px; font-weight: 600; font-size: 14px; color: var(--muted); cursor: pointer; white-space: nowrap; display: inline-flex; gap: 8px; align-items: center; }
.ftabs button span { font-size: 12px; font-weight: 600; color: var(--faint); }
.ftabs button.on { background: var(--bg); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 0 0 1px var(--line); }
.ftabs button.on span { color: var(--muted); }
.fdesc { display: grid; grid-template-columns: 1fr repeat(3, auto); gap: 28px; align-items: center; border: 1px solid var(--line); border-radius: 20px; padding: 20px 24px; margin-bottom: 18px; }
.fdesc b { font-size: 17px; }
.fdesc p { margin: 6px 0 0; color: var(--muted); font-size: 14px; max-width: 520px; }
.fdesc .now { margin-left: 8px; font-size: 12px; font-weight: 600; background: var(--ink); color: var(--bg); border-radius: 999px; padding: 3px 9px; vertical-align: 2px; }
.fstat { text-align: right; }
.fstat b { display: block; font-size: 24px; letter-spacing: -.02em; line-height: 1.1; }
.fstat span { color: var(--muted); font-size: 12px; }
.sgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.scard { background: var(--soft); border-radius: 18px; display: flex; flex-direction: column; transition: box-shadow .15s; }
.scard:hover { box-shadow: inset 0 0 0 1.5px var(--ink); }
.sc-main { display: grid; gap: 6px; padding: 18px 18px 12px; text-decoration: none; color: inherit; flex: 1; }
.sc-name { font-size: 20px; font-weight: 700; letter-spacing: -.02em; margin-top: 6px; }
.sc-meta, .sc-prog { color: var(--muted); font-size: 13px; }
.sc-main .bar { margin-top: 6px; background: color-mix(in srgb, var(--ink) 10%, transparent); }
.sc-links { display: flex; gap: 14px; flex-wrap: wrap; padding: 10px 18px 14px; border-top: 1px solid color-mix(in srgb, var(--ink) 7%, transparent); font-size: 13px; }
.sc-links a { color: var(--muted); }
.sc-links a:hover { color: var(--ink); }
.shead .sc-links { border: 0; padding: 0; margin-left: 6px; }
.kind { justify-self: start; display: inline-block; font-size: 12px; font-weight: 600; border-radius: 999px; padding: 3px 10px; }
.kind.main { background: var(--ink); color: var(--bg); }
.kind.trial { background: var(--bg); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.kind.extra { background: color-mix(in srgb, var(--ok) 14%, var(--bg)); color: var(--ok); }
.shead { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; background: var(--soft); border-radius: 22px; padding: 24px 26px; margin: 4px 0 8px; }
.shead h2 { margin: 10px 0 4px; }
.shead .sub { margin-bottom: 16px; }
.sstat { display: grid; grid-template-columns: auto auto; gap: 2px 12px; align-items: baseline; text-align: right; }
.sstat b { font-size: 26px; letter-spacing: -.02em; }
.sstat b span { font-size: 15px; color: var(--muted); }
.sstat > span { color: var(--muted); font-size: 13px; text-align: left; }
.xhead .xt { display: block; }
@media (max-width: 860px) { .sgrid { grid-template-columns: 1fr 1fr; } .fdesc { grid-template-columns: repeat(3, 1fr); } .fdesc > div:first-child { grid-column: 1 / -1; } .fstat { text-align: left; } }
@media (max-width: 560px) {
  .sgrid { grid-template-columns: 1fr; }
  .shead { grid-template-columns: 1fr; padding: 20px; }
  .sstat { text-align: left; justify-content: start; }
  .fdesc { padding: 16px 18px; gap: 14px; }
}
main:has(.sgrid), main:has(.shead) { max-width: 960px; }