/* =====================================================================
   sc4.11 - Kalk i muslingeskaller
   Stilark. Samme udtryk som de andre superanimationer (kopi af sc5.1, som bygger paa sc4.5
   og sc7.4). Nyt nederst: omskifteren Uden mol / Med mol og skemaerne i panelet.
   BEMAERK: decimaltal skrives med PUNKTUM i CSS (0.25rem) - aldrig med
   dansk komma. Dansk komma bruges kun i tekst, som brugeren laeser.
   ===================================================================== */

:root {
    --bund:        #1b1b21;
    --scene-bund:  #14141a;
    --panel:       #2b2b36;
    --panel-2:     #333340;
    --panel-3:     #3d3d4b;
    --linje:       #464655;
    --tekst:       #f2f3f5;
    --tekst-svag:  #a9b0ba;
    --tekst-mat:   #7e8590;

    --blaa:        #3d9ee0;
    --blaa-mork:   #2a76ac;
    --orange:      #e6892a;
    --groen:       #3fae72;
    --groen-mork:  #2b7d51;
    --roed:        #e05446;
    --roed-mork:   #a33529;
    --gul:         #f2c53d;
    --lilla:       #9b6bd6;

    --plus-lys:    #f7a79d;
    --minus-lys:   #97cff5;

    --radius:      10px;
    --radius-lil:  6px;
    --skygge:      0 4px 14px rgba(0, 0, 0, 0.35);
    --panel-bredde: 430px;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { margin: 0; padding: 0; height: 100%; }

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bund);
    color: var(--tekst);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------------------------------
   TOPLINJE
   --------------------------------------------------------------------- */
.top {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    background-color: #15151b;
    border-bottom: 1px solid #33333f;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.4);
    z-index: 20;
    flex-shrink: 0;
}

/* I en samling i fuld skaerm staar knappen, der gendanner panelet, i hjoernet */
.samling-fuld .top { padding-left: 56px; }

.top h1 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.top h1 .ikon { font-size: 1.1rem; margin-right: 3px; color: var(--gul); }

.faneknapper {
    display: flex;
    gap: 6px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.faneknapper::-webkit-scrollbar { display: none; }

.faneknap {
    background-color: var(--panel-2);
    color: var(--tekst-svag);
    border: 1px solid transparent;
    padding: 8px 14px;
    border-radius: var(--radius-lil);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.18s ease, color 0.18s ease;
}

.faneknap .nr {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 19px;
    height: 19px;
    border-radius: 50%;
    background-color: var(--panel-3);
    color: var(--tekst-svag);
    font-size: 0.7rem;
    flex-shrink: 0;
}

.faneknap:hover { background-color: var(--panel-3); color: var(--tekst); }
.faneknap.aktiv { background-color: var(--blaa); color: #ffffff; }
.faneknap.aktiv .nr { background-color: rgba(255, 255, 255, 0.25); color: #ffffff; }

.ikonknap {
    background: transparent;
    border: 1px solid #4a4a58;
    color: var(--tekst-svag);
    border-radius: 4px;
    width: 30px;
    height: 28px;
    font-size: 0.9rem;
    cursor: pointer;
    flex-shrink: 0;
}

.ikonknap:hover { background-color: var(--panel-3); color: var(--tekst); }

/* ---------------------------------------------------------------------
   HOVEDLAYOUT
   --------------------------------------------------------------------- */
main { flex: 1; position: relative; min-height: 0; }

.fane {
    position: absolute;
    inset: 0;
    display: none;
    grid-template-columns: minmax(0, 1fr) var(--panel-bredde);
}

.fane.aktiv { display: grid; }

.scene {
    position: relative;
    min-width: 0;
    min-height: 0;
    background-color: var(--scene-bund);
    overflow: hidden;
}

.scene > canvas { display: block; width: 100%; height: 100%; }

/* Usynlige felter oven paa laerredet, som rundvisningen peger paa */
.anker { position: absolute; pointer-events: none; }


/* ---------------------------------------------------------------------
   HOEJRE SPALTE
   --------------------------------------------------------------------- */
.panel {
    background-color: var(--panel);
    border-left: 1px solid #1f1f27;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    min-width: 0;
    scrollbar-width: thin;
    scrollbar-color: #4d4d5c var(--panel);
}

.panel::-webkit-scrollbar { width: 9px; }
.panel::-webkit-scrollbar-track { background: var(--panel); }
.panel::-webkit-scrollbar-thumb { background: #4d4d5c; border-radius: 5px; }

.kort {
    background-color: rgba(0, 0, 0, 0.22);
    border: 1px solid #3a3a47;
    border-radius: var(--radius);
    padding: 11px;
}

.kort > h2 {
    margin: 0 0 8px 0;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--gul);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
}

.kort.maaling { border-left: 3px solid var(--groen); }
.kort.opgavekort { border-left: 3px solid var(--lilla); }

.kort > h2 .taeller {
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: none;
    color: var(--tekst-mat);
    white-space: nowrap;
}

.kort > h2 .taeller b { color: var(--tekst); }

.hyldeprik {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    margin-right: 7px;
    vertical-align: 0;
}

.note { margin: 8px 0 0 0; font-size: 0.8rem; line-height: 1.45; color: var(--tekst-svag); }
.note:empty { display: none; }

.besked { margin: 0; font-size: 0.86rem; line-height: 1.5; color: #c8ced6; }
.besked:empty { display: none; }
.besked.god   { color: #7ee0a8; }

/* ---------------------------------------------------------------------
   OPGAVEKORTET: raekker med felter
   --------------------------------------------------------------------- */
.opgave-prompt {
    font-size: 1.55rem;
    font-weight: 600;
    line-height: 1.2;
    margin: 2px 0 4px;
    word-break: break-word;
}

.opgave-spm { margin: 0 0 4px; font-size: 0.86rem; line-height: 1.45; color: var(--tekst-svag); }

.raekker { display: flex; flex-direction: column; gap: 9px; margin: 8px 0 10px; }
@keyframes ryst {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

.felt.ryst { animation: ryst 0.35s ease 1; border-color: var(--roed); }

@keyframes glimt {
    0%   { box-shadow: 0 0 0 0 rgba(63, 174, 114, 0.55); }
    70%  { box-shadow: 0 0 0 12px rgba(63, 174, 114, 0); }
    100% { box-shadow: 0 0 0 0 rgba(63, 174, 114, 0); }
}

.opgavekort .besked { margin-top: 2px; }
.opgavekort.sejr { border-left-color: var(--groen); animation: glimt 0.9s ease-out 2; }


/* ----- Hylderne i panelet --------------------------------------------- */
.hyldeliste { display: flex; flex-direction: column; gap: 5px; }

.hyldelinje {
    display: flex;
    align-items: center;
    gap: 9px;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.045);
    border: 1px solid transparent;
    border-radius: var(--radius-lil);
    padding: 7px 10px;
    font-family: inherit;
    color: var(--tekst);
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.hyldelinje:hover { background-color: var(--panel-3); border-color: #5e5e70; }
.hl-farve { width: 4px; align-self: stretch; border-radius: 2px; flex-shrink: 0; }
.hl-navn { flex: 1; font-size: 0.88rem; font-weight: 600; }
.hl-navn em { display: block; font-style: normal; font-weight: 400; font-size: 0.76rem; color: var(--tekst-mat); }
.hl-tal { font-size: 0.88rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.hl-stjerner { min-width: 34px; text-align: right; font-size: 0.82rem; font-weight: 700; color: var(--gul); }

/* ---------------------------------------------------------------------
   KNAPPER
   --------------------------------------------------------------------- */
.knapper { display: flex; flex-direction: column; gap: 7px; }

.knap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    background-color: var(--panel-2);
    color: var(--tekst);
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    padding: 8px 11px;
    font-family: inherit;
    font-size: 0.86rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}

.knap:hover:not(:disabled) { background-color: var(--panel-3); border-color: #5e5e70; }
.knap:active:not(:disabled) { transform: scale(0.985); }
.knap:disabled { opacity: 0.4; cursor: not-allowed; }

.knap .tegn { font-size: 1rem; flex-shrink: 0; }
.knap.stor { padding: 11px 13px; font-size: 0.92rem; width: 100%; }

.knap.blaa { background-color: var(--blaa-mork); border-color: var(--blaa); }
.knap.blaa:hover:not(:disabled) { background-color: var(--blaa); }

.knap.nulstil {
    background-color: transparent;
    border-color: #5b3b39;
    color: #e08b81;
    margin-top: 10px;
    width: 100%;
}

.knap.nulstil:hover:not(:disabled) { background-color: rgba(224, 84, 70, 0.16); border-color: var(--roed); }

.knaprad { display: flex; gap: 6px; margin-top: 9px; }
.knaprad.taet { margin-top: 0; }
.knaprad .knap { flex: 1; justify-content: center; padding: 8px 6px; }

/* Den knap, der er det naturlige naeste skridt, banker stille. */
@keyframes bank {
    0%   { box-shadow: 0 0 0 0 rgba(61, 158, 224, 0.6); }
    70%  { box-shadow: 0 0 0 11px rgba(61, 158, 224, 0); }
    100% { box-shadow: 0 0 0 0 rgba(61, 158, 224, 0); }
}

.knap.banker { animation: bank 1.7s ease-out infinite; }


/* ---------------------------------------------------------------------
   OVERLAYS: teorien
   --------------------------------------------------------------------- */
.overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(8, 8, 12, 0.78);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 50;
}

.overlay.vis { display: flex; }

.overlay-boks {
    background-color: var(--panel);
    border: 1px solid var(--linje);
    border-radius: 14px;
    box-shadow: var(--skygge);
    max-width: 620px;
    width: 100%;
    max-height: 100%;
    overflow-y: auto;
    padding: 22px 24px;
}

.overlay-boks.bred { max-width: 900px; }
.overlay-boks.smal { max-width: 420px; }

.overlay-boks h2 { margin: 0 0 12px 0; font-size: 1.15rem; color: var(--blaa); }

/* ---------------------------------------------------------------------
   RUNDVISNINGEN (samme som i sc1.1)
   --------------------------------------------------------------------- */
.rundvisning { position: fixed; inset: 0; z-index: 200; }
.rundvisning[hidden] { display: none; }

.rundvisning-baggrund {
    position: fixed;
    inset: 0;
    background: transparent;
    cursor: pointer;
}

.rundvisning-spot {
    position: fixed;
    border-radius: 10px;
    box-shadow: 0 0 0 9999px rgba(8, 8, 13, 0.74);
    outline: 2px solid var(--gul);
    outline-offset: 3px;
    pointer-events: none;
    transition: top 0.22s ease, left 0.22s ease, width 0.22s ease, height 0.22s ease;
}

.rundvisning-boks {
    position: fixed;
    width: 300px;
    max-width: calc(100vw - 28px);
    background-color: var(--panel);
    border: 1px solid var(--linje);
    border-radius: var(--radius);
    box-shadow: var(--skygge);
    padding: 14px 16px;
    transition: top 0.22s ease, left 0.22s ease;
}

.rundvisning-hoved {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.rundvisning-tal {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    color: var(--tekst-mat);
}

.rundvisning-luk {
    background: transparent;
    border: none;
    color: var(--tekst-svag);
    font-size: 0.9rem;
    line-height: 1;
    cursor: pointer;
    padding: 2px 4px;
}

.rundvisning-luk:hover { color: var(--tekst); }

.rundvisning-boks h3 { margin: 0 0 6px 0; font-size: 1rem; color: var(--gul); }
.rundvisning-boks p { margin: 0; font-size: 0.87rem; line-height: 1.5; color: #c8ced6; }

.rundvisning-knapper {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 14px;
}

.rundvisning-knapper .knap { flex: 1; justify-content: center; }

/* ---------------------------------------------------------------------
   TILGAENGELIGHED OG SMALLE SKAERME
   --------------------------------------------------------------------- */
button:focus-visible,
select:focus-visible {
    outline: 2px solid var(--gul);
    outline-offset: 2px;
}

@media (max-width: 1320px) {
    :root { --panel-bredde: 370px; }
}

@media (max-width: 1100px) {
    .top { gap: 10px; padding: 8px 12px; }
    .faneknap { padding: 7px 10px; font-size: 0.82rem; gap: 6px; }
    .faneknap .nr { width: 17px; height: 17px; font-size: 0.65rem; }
}

@media (max-width: 860px) {
    body { overflow: auto; }
    .top { flex-wrap: wrap; gap: 10px; }
    .faneknapper { order: 3; width: 100%; flex: none; }
    main { overflow: visible; }
    .fane { position: static; grid-template-columns: minmax(0, 1fr); }
    .fane.aktiv { display: grid; }
    .scene { height: 66vh; min-height: 440px; }
    .panel { border-left: none; border-top: 1px solid #1f1f27; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}


.ikonknap.tekstknap { width: auto; padding: 0 10px; font-family: inherit; font-size: 0.82rem; font-weight: 600; }

/* Teorien */
.overlay-boks p { margin: 0 0 10px; font-size: 0.95rem; line-height: 1.55; color: #dde3ea; }

.eksempel {
    margin: 4px 0 12px;
    padding: 10px 14px;
    border-left: 4px solid var(--lilla);
    border-radius: 0 var(--radius-lil) var(--radius-lil) 0;
    background-color: rgba(255, 255, 255, 0.05);
    font-size: 1rem;
    font-weight: 600;
    color: var(--tekst);
}

.eksempel-hoved {
    display: block;
    margin-bottom: 3px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lilla);
}


/* Valgknapperne i Frit valg */
.vaelgerrad { display: flex; flex-wrap: wrap; gap: 6px; }
.vaelgerrad + .vaelgerrad { margin-top: 8px; }

.vaelger {
    flex: 1 1 auto;
    background-color: var(--panel-2);
    color: var(--tekst-svag);
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    padding: 7px 10px;
    font-family: inherit;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.vaelger:hover { background-color: var(--panel-3); color: var(--tekst); }
.vaelger.valgt { background-color: var(--blaa-mork); border-color: var(--blaa); color: #ffffff; }

/* En broek med taeller over naevner */
.broek {
    display: inline-flex;
    flex-direction: column;
    vertical-align: middle;
    text-align: center;
    font-size: 0.82em;
    line-height: 1.1;
    margin: 0 1px;
}

.broek > span { padding: 0 3px; }
.broek > span:first-child { border-bottom: 1.5px solid currentColor; }

/* De paene beregninger paa fane 3 */
.regn-linjer .note { margin: 0; }

.regn-linje {
    background-color: rgba(255, 255, 255, 0.045);
    border-radius: var(--radius-lil);
    padding: 7px 10px;
    font-size: 0.92rem;
    line-height: 1.5;
    color: var(--tekst);
    font-variant-numeric: tabular-nums;
}

.regn-linje + .regn-linje { margin-top: 5px; }
.regn-linje b { color: #b8f0cf; }
.regn-linje.svar b { color: #f5dd8a; }


/* ---------------------------------------------------------------------
   SC4.5: opgavekortet, listen og knappen Nye tal
   --------------------------------------------------------------------- */
.opgave-prompt { font-size: 1.35rem; }
.opgavekort .opgave-spm { margin-bottom: 2px; }

.hl-nr {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--panel-3);
    color: var(--tekst-svag);
    font-size: 0.72rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hyldelinje.valgt { border-color: var(--blaa); background-color: rgba(61, 158, 224, 0.12); }
.hyldelinje.valgt .hl-nr { background-color: var(--blaa); color: #ffffff; }
.hl-stjerner { min-width: 20px; }

.knap.nye { width: 100%; margin-top: 9px; }

/* Gaettet paa fane 1: knapperne over den faste knap */
.valgrad .knap { background-color: rgba(242, 197, 61, 0.1); border-color: rgba(242, 197, 61, 0.6); }
.valgrad .knap:hover:not(:disabled) { background-color: rgba(242, 197, 61, 0.22); border-color: var(--gul); }

/* ---------------------------------------------------------------------
   LINJEN I OPGAVEKORTET: naeste skridt, fejl, ros, hint og svar
   --------------------------------------------------------------------- */
.opgavekort .besked {
    margin: 8px 0 0;
    padding: 7px 10px;
    border-left: 3px solid #5e5e70;
    border-radius: var(--radius-lil);
    background-color: rgba(255, 255, 255, 0.045);
    font-size: 0.9rem;
}

.opgavekort .besked.god   { border-left-color: var(--groen); }
.opgavekort .besked.skidt { border-left-color: var(--roed); }
.opgavekort .besked.gul   { border-left-color: var(--gul); background-color: rgba(242, 197, 61, 0.1); color: #f7e4ab; }
.opgavekort .besked .broek { font-size: 0.8em; }

/* ---------------------------------------------------------------------
   HJAELPEKNAPPEN: gul, saa den ses, uden at man leder. Giv hint er
   fyldt, Vis svaret kun et omrids. Efter et forkert svar lyser knappen
   stille op (klassen peg), til den er brugt.
   --------------------------------------------------------------------- */
.knap.hjaelp {
    border: 2px solid #c79a12;
    background-color: #ffdf6b;
    color: #33290a;
    font-size: 1rem;
    font-weight: 700;
}

.knaprad .knap.hjaelp { padding: 9px 8px; }
.knap.hjaelp:hover:not(:disabled) { background-color: #ffd23e; border-color: #a67f08; }

.knap.hjaelp.svar {
    border-color: rgba(242, 197, 61, 0.7);
    background-color: rgba(242, 197, 61, 0.12);
    color: #f7e4ab;
}

.knap.hjaelp.svar:hover:not(:disabled) { background-color: rgba(242, 197, 61, 0.24); border-color: var(--gul); color: #fff6d8; }

@keyframes knap-peg {
    0%, 100% { box-shadow: 0 0 0 0 rgba(242, 197, 61, 0); }
    50%      { box-shadow: 0 0 0 6px rgba(242, 197, 61, 0.32); }
}

.knap.hjaelp.peg { animation: knap-peg 1.9s ease-in-out infinite; }

/* ---------------------------------------------------------------------
   SC5.1: talraekkerne, regnetrinene (som sc7.4), gaettet og Start forfra
   --------------------------------------------------------------------- */
.besked.skidt { color: #f0918a; }
.besked.gul   { color: #f0d77a; }
.besked b { color: inherit; }

.maal-tekst { margin: 2px 0 6px; font-size: 1.12rem; font-weight: 600; line-height: 1.4; }

.talraekke {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.045);
    border-radius: var(--radius-lil);
    padding: 6px 10px;
    font-size: 0.9rem;
    color: #c8ced6;
}

.talraekke + .talraekke { margin-top: 5px; }
.talraekke .tal { font-weight: 700; color: var(--tekst); font-variant-numeric: tabular-nums; white-space: nowrap; }
.tal.gul { color: var(--gul); }
#kar-regn { margin-top: 8px; }

/* Regnetrinene: formlen og saa tallet */
.raekke-hoved { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 4px; }

.raekke-etiket {
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.raekke-formel { margin: 0 0 4px; font-size: 0.95rem; font-weight: 600; color: #cfd6de; }

.felter { display: flex; gap: 6px; }

.felt {
    flex: 1;
    display: flex;
    align-items: stretch;
    min-width: 0;
    min-height: 40px;
    background-color: #1a1a22;
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    overflow: hidden;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.felt input {
    flex: 1;
    min-width: 60px;
    background: transparent;
    border: none;
    color: var(--tekst);
    font-family: inherit;
    font-size: 1.02rem;
    font-weight: 600;
    padding: 8px 10px;
    outline: none;
}

.felt input::placeholder { color: #6a707b; font-weight: 400; }

.felt-ok {
    background-color: var(--blaa-mork);
    color: #ffffff;
    border: none;
    padding: 0 12px;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
}

.felt-ok:hover:not(:disabled) { background-color: var(--blaa); }
.felt.aktiv { border-color: var(--blaa); }
.felt.aktiv:focus-within { border-color: var(--gul); box-shadow: 0 0 0 1px var(--gul); }
.felt.laast { opacity: 0.4; }
.felt.laast .felt-ok { background-color: var(--panel-3); cursor: default; }
.felt.ok { border-color: rgba(63, 174, 114, 0.6); background-color: rgba(63, 174, 114, 0.13); }
.felt.svar { border-color: rgba(242, 197, 61, 0.55); background-color: rgba(242, 197, 61, 0.1); }

.felt-pre { align-self: center; padding: 0 2px 0 10px; font-size: 1.02rem; font-weight: 700; color: var(--gul); white-space: nowrap; }
.felt-efter { align-self: center; padding: 0 8px 0 2px; font-size: 0.88rem; color: var(--tekst-mat); white-space: nowrap; }

.felt-svar {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    font-size: 0.98rem;
    font-weight: 600;
    color: #b8f0cf;
    overflow-wrap: anywhere;
    align-self: center;
}

.felt-svar b { color: #ffffff; }
.felt.svar .felt-svar b { color: #fff3c4; }
.felt-maerke { padding: 0 10px; align-self: center; font-weight: 700; color: #7ee0a8; }
.felt.svar .felt-maerke { color: var(--gul); }
.felt.ryst { animation: ryst 0.35s ease 1; border-color: var(--roed); }

/* Gaettet paa fane 1: tre svar under hinanden */
.valgrad { flex-direction: column; }
.valgrad .knap { justify-content: flex-start; text-align: left; }
.valgrad .knap.valgt { border-color: var(--blaa); background-color: rgba(61, 158, 224, 0.2); opacity: 1; }
.valgrad .knap.rigtig { border-color: var(--groen); background-color: rgba(63, 174, 114, 0.2); opacity: 1; }
.valgrad .knap.forkert { border-color: var(--roed); background-color: rgba(224, 84, 70, 0.16); opacity: 1; }
.valgrad .knap:disabled { cursor: default; }
.valgrad .knap:disabled:not(.valgt):not(.rigtig) { opacity: 0.45; }

@keyframes peg {
    0%   { box-shadow: 0 0 0 0 rgba(242, 197, 61, 0.7); }
    70%  { box-shadow: 0 0 0 10px rgba(242, 197, 61, 0); }
    100% { box-shadow: 0 0 0 0 rgba(242, 197, 61, 0); }
}

.valgrad.peg .knap:not(:disabled) { border-color: var(--gul); animation: peg 1s ease-out infinite; }

/* Start forfra: nederst til hoejre i scenen */
.forfraknap {
    position: absolute;
    right: 12px;
    bottom: 10px;
    z-index: 5;
    background-color: rgba(20, 20, 28, 0.85);
    color: var(--tekst-svag);
    border: 1px solid #4a4a58;
    border-radius: 999px;
    padding: 5px 12px;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.forfraknap:hover { color: var(--tekst); border-color: #6e6e80; background-color: var(--panel-3); }
.knap:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------------------------------------------------------------------
   SC4.11: omskifteren Uden mol / Med mol og skemaerne i panelet
   --------------------------------------------------------------------- */
.niveau {
    display: flex;
    flex-shrink: 0;
    background-color: var(--panel-2);
    border: 1px solid #4a4a58;
    border-radius: 999px;
    padding: 2px;
}

.niveauknap {
    background: transparent;
    border: none;
    border-radius: 999px;
    color: var(--tekst-svag);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 5px 12px;
    cursor: pointer;
    white-space: nowrap;
}

.niveauknap:hover { color: var(--tekst); }
.niveauknap.aktiv { background-color: var(--gul); color: #1b1b21; }

.skema {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 5px;
    font-size: 0.9rem;
}

.skema th {
    text-align: left;
    font-weight: 600;
    color: var(--tekst-svag);
    padding: 0 6px 0 2px;
    white-space: nowrap;
}

.skema thead th { font-size: 0.76rem; letter-spacing: 0.04em; color: var(--tekst-mat); padding-bottom: 0; }
.skema td { padding: 0 3px; }
.skema tr.valgt th { color: var(--gul); }

.felt.lille { min-height: 36px; }
.felt.lille input { min-width: 40px; width: 100%; padding: 6px 8px; font-size: 0.98rem; text-align: right; font-variant-numeric: tabular-nums; }
.felt.lille input:disabled { color: var(--tekst); opacity: 1; }
.felt.lille .felt-efter { padding: 0 8px 0 0; }
.felt.lille.ok { border-color: rgba(63, 174, 114, 0.6); background-color: rgba(63, 174, 114, 0.13); }
.felt.lille.ok input { color: #b8f0cf; }

.skema.tal td {
    background-color: rgba(255, 255, 255, 0.045);
    padding: 6px 10px;
    text-align: right;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--tekst);
    min-width: 80px;
}

.skema.tal td:empty::after { content: "–"; color: var(--tekst-mat); font-weight: 400; }
.skema.tal td:first-of-type { border-radius: var(--radius-lil) 0 0 var(--radius-lil); }
.skema.tal td:last-of-type { border-radius: 0 var(--radius-lil) var(--radius-lil) 0; }

#fejl-tabel.hoejere tr.kalk td:last-of-type,
#fejl-tabel.lavere tr.kalk td:last-of-type { color: #1b1b21; background-color: var(--gul); }

@media (max-width: 1100px) {
    .niveauknap { padding: 5px 9px; font-size: 0.78rem; }
}

@media (max-width: 860px) {
    .niveau { order: 2; }
}

/* ---------------------------------------------------------------------
   SC4.11, 9. okt. 2026: kortet midt i scenen (fane 1 og 3). Gaettet, det
   naeste skridt, hint, forklaring og knappen videre staar samme sted
   oeverst i scenen, fordi eleverne klikker, foer de laeser (samme
   moenster som sc7.5). Tre udgaver:
     .gaet   et gaet foer forsoeget: stort og gult, pulserer stille og
             blinker, naar eleven klikker paa forsoeget foerst
     (ingen) det naeste skridt med stor skrift
     .sejr   opgaven er loest: groent med forklaringen og knappen videre
             (.svar: gult, naar svaret er vist, eller gaettet ikke holdt)
   Kortet er centreret med margin, ikke med transform. Hoejden maa ikke
   overstige kortZone() i js/fane.js; selvtesten maaler det.
   --------------------------------------------------------------------- */
.scenekort {
    position: absolute;
    z-index: 6;
    top: 10px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: min(820px, calc(100% - 24px));
    padding: 9px 14px 10px;
    border: 2px solid #4a4f5e;
    border-radius: 12px;
    background-color: #1d1e26;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.45);
}

.sk-hoved { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px; margin-bottom: 6px; }

.sk-chip {
    display: inline-block;
    padding: 2px 11px;
    border-radius: 999px;
    background-color: #3d4150;
    color: #dfe4ea;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

.sk-nr { font-size: 0.82rem; color: var(--tekst-mat); }
.sk-nr b { color: var(--tekst-svag); }

/* De fire skridt i en maaling: klaret, nu og senere */
.sk-skridt { display: flex; flex-wrap: wrap; gap: 5px; margin: 0; padding: 0; list-style: none; }
.sk-skridt[hidden] { display: none; }

.sk-skridt li {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 2px 10px 2px 3px;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--tekst-mat);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.ss-nr {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.12);
    font-size: 0.7rem;
    font-weight: 800;
}

.sk-skridt li.nu { background-color: #ffdf6b; color: #33290a; font-weight: 800; }
.sk-skridt li.nu .ss-nr { background-color: #33290a; color: #ffdf6b; }
.sk-skridt li.klaret { color: #9af0c0; }
.sk-skridt li.klaret .ss-nr { background-color: var(--groen-mork); color: #ffffff; }

.sk-tekst { margin: 0; font-size: 1.15rem; line-height: 1.34; font-weight: 700; color: #ffffff; }

/* Kortets nederste raekke: hint, fejl, ros og forklaringen, og den gule knap */
.sk-bund { display: flex; align-items: center; gap: 12px; margin-top: 8px; }

.scenekort .besked {
    flex: 1;
    margin: 0;
    padding: 6px 10px;
    border-left: 3px solid #5e5e70;
    border-radius: var(--radius-lil);
    background-color: rgba(255, 255, 255, 0.045);
    font-size: 0.96rem;
    line-height: 1.4;
    color: #cfd6de;
}

.scenekort .besked.god   { border-left-color: var(--groen); color: #b8f0cf; }
.scenekort .besked.skidt { border-left-color: var(--roed); background-color: rgba(224, 84, 70, 0.12); color: #ffb3aa; }
.scenekort .besked.gul   { border-left-color: var(--gul); background-color: rgba(242, 197, 61, 0.1); color: #f7e4ab; }

.sk-bund .knap {
    flex: 0 0 auto;
    margin-left: auto;
    justify-content: center;
    min-width: 150px;
    padding: 8px 16px;
    font-size: 0.98rem;
    font-weight: 700;
}

/* Loest: groent kort, og knappen, der foerer videre, er groen og banker */
.scenekort.sejr { border-color: var(--groen); background-color: #17241e; animation: glimt 0.9s ease-out 2; }
.scenekort.sejr .sk-chip { background-color: var(--groen); color: #ffffff; }
.scenekort.sejr .sk-tekst { font-weight: 600; color: #e9f7ef; }
.scenekort.sejr.svar { border-color: var(--gul); background-color: #23201a; }
.scenekort.sejr.svar .sk-chip { background-color: var(--gul); color: #33290a; }

@keyframes bank-groen {
    0%   { box-shadow: 0 0 0 0 rgba(95, 207, 146, 0.6); }
    70%  { box-shadow: 0 0 0 11px rgba(95, 207, 146, 0); }
    100% { box-shadow: 0 0 0 0 rgba(95, 207, 146, 0); }
}

.scenekort .knap.blaa {
    padding: 11px 18px;
    border-color: #5fcf92;
    background-color: var(--groen-mork);
    color: #ffffff;
    font-size: 1rem;
    white-space: nowrap;
}

.scenekort .knap.blaa:hover:not(:disabled) { background-color: var(--groen); }
.scenekort .knap.blaa.banker { animation: bank-groen 1.7s ease-out infinite; }

/* Gaettet: stoerre, og det eneste fyldte gule paa skaermen */
.scenekort.gaet {
    top: 12px;
    padding: 11px 18px 14px;
    border: 3px solid var(--gul);
    border-radius: 14px;
    background-color: #25211a;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
    animation: gk-puls 2.2s ease-in-out infinite;
}

.scenekort.gaet .sk-chip { padding: 4px 14px; background-color: var(--gul); color: #33290a; font-size: 0.92rem; letter-spacing: 0.06em; }
.scenekort.gaet .sk-hoved { margin-bottom: 4px; padding-right: 120px; }

.gk-intro { margin: 4px 0 0; font-size: 1rem; line-height: 1.4; color: #d9d2bf; }
.gk-tekst { margin: 5px 0 10px; font-size: 1.3rem; line-height: 1.25; font-weight: 700; color: #ffffff; }

.sk-valg { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.sk-valg[hidden] { display: none; }

.gk-knap {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 10px 11px;
    border: 2px solid rgba(242, 197, 61, 0.75);
    border-radius: 10px;
    background-color: rgba(242, 197, 61, 0.12);
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.25;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.gk-knap:hover { background-color: rgba(242, 197, 61, 0.3); border-color: #ffdf6b; }
.gk-knap:active { background-color: rgba(242, 197, 61, 0.42); }

.v-bogstav {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--gul);
    color: #33290a;
    font-size: 0.8rem;
    font-weight: 800;
}

/* Under et gaet er hintknappen kun et lille omrids oeverst i kortets hjoerne */
.scenekort.gaet .sk-bund { margin-top: 0; }
.scenekort.gaet .sk-bund .besked { margin-top: 10px; }

.scenekort.gaet .sk-bund .knap {
    position: absolute;
    top: 11px;
    right: 14px;
    min-width: 0;
    padding: 5px 12px;
    font-size: 0.84rem;
    font-weight: 600;
}

@keyframes gk-puls {
    0%, 100% { box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55), 0 0 0 0 rgba(242, 197, 61, 0); }
    50%      { box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55), 0 0 0 9px rgba(242, 197, 61, 0.24); }
}

@keyframes gk-blink {
    0%, 33%, 66%  { background-color: #6b5510; box-shadow: 0 0 0 16px rgba(242, 197, 61, 0.5); }
    16%, 50%, 100% { background-color: #25211a; box-shadow: 0 0 0 0 rgba(242, 197, 61, 0); }
}

.scenekort.gaet.blink { animation: gk-blink 1s ease-in-out 1, gk-puls 2.2s ease-in-out 1s infinite; }

/* Lave skaerme (rammen i menuen paa en baerbar): kortet fylder mindre */
@media (max-height: 720px) {
    .scenekort { top: 8px; padding: 7px 12px 8px; }
    .sk-hoved { margin-bottom: 4px; }
    .sk-tekst { font-size: 1.04rem; line-height: 1.3; }
    .sk-chip { font-size: 0.74rem; padding: 2px 9px; }
    .sk-skridt li { font-size: 0.76rem; padding: 1px 8px 1px 2px; }
    .sk-bund { margin-top: 6px; gap: 10px; }
    .scenekort .besked { padding: 5px 9px; font-size: 0.9rem; line-height: 1.32; }
    .sk-bund .knap { min-width: 132px; padding: 6px 13px; font-size: 0.92rem; }
    .scenekort .knap.blaa { padding: 9px 14px; font-size: 0.95rem; }
    .scenekort.gaet { top: 10px; padding: 9px 14px 11px; }
    .scenekort.gaet .sk-chip { font-size: 0.82rem; padding: 3px 12px; }
    .gk-intro { font-size: 0.93rem; line-height: 1.32; }
    .gk-tekst { margin: 4px 0 8px; font-size: 1.18rem; }
    .gk-knap { padding: 7px 9px; font-size: 0.93rem; }
    .scenekort.gaet .sk-bund .knap { top: 8px; right: 12px; }
}

/* Smalle scener: svarene til gaettet under hinanden */
@media (max-width: 860px) {
    .sk-valg { grid-template-columns: minmax(0, 1fr); gap: 6px; }
    .gk-tekst { font-size: 1.12rem; }
}

/* Start forfra og Koer igen: yderst til hoejre i kortets oeverste raekke,
   saa de ikke daekker noget i scenen */
.sk-hoved .forfraknap { position: static; margin-left: auto; padding: 3px 11px; background-color: transparent; }

/* ---------------------------------------------------------------------
   SC4.11, 9. okt. 2026: panelet. Knappen Aflaes vaegten ved skemaet,
   groenne raekker for loeste opgaver og regnetrinene paa fane 2: kun det
   aktive trin er aabent, og uden mol vaelges formlen blandt tre.
   --------------------------------------------------------------------- */
.knap.aflaes { width: 100%; margin-top: 8px; justify-content: center; }
.knap.aflaes.nu { border-color: rgba(242, 197, 61, 0.75); background-color: rgba(242, 197, 61, 0.12); color: #f7e4ab; }
.knap.aflaes.nu:hover { background-color: rgba(242, 197, 61, 0.24); border-color: var(--gul); }

.hyldelinje.loest { background-color: rgba(63, 174, 114, 0.14); }
.hyldelinje.loest .hl-nr { background-color: var(--groen-mork); color: #ffffff; }
.hyldelinje.loest .hl-stjerner { color: #9af0c0; }
.hyldelinje.loest.valgt { border-color: var(--groen); }

.raekke.laast .raekke-hoved { margin-bottom: 0; }
.raekke.laast .raekke-etiket { opacity: 0.55; }

.raekke.aktiv {
    padding: 9px 10px 10px;
    border: 1px solid rgba(242, 197, 61, 0.5);
    border-radius: var(--radius-lil);
    background-color: rgba(242, 197, 61, 0.05);
}

.raekke.aktiv .raekke-etiket { color: var(--gul); }
.raekke-spm { margin: 2px 0 6px; font-size: 1.08rem; font-weight: 700; line-height: 1.3; color: #ffffff; }
.raekke-hvad { margin: 0 0 6px; font-size: 0.9rem; color: var(--tekst-svag); }
.raekke-formel { font-size: 1.02rem; color: #ffffff; }
.raekke-indsat { margin: 0 0 7px; font-size: 1.02rem; font-weight: 600; color: #f5dd8a; }
.raekke-formel .broek, .raekke-indsat .broek, .formelknap .broek { font-size: 0.86em; margin: 0 3px; }

.formelvalg { display: flex; flex-direction: column; gap: 6px; }
.formelvalg.ryst { animation: ryst 0.35s ease 1; }

.formelknap {
    padding: 9px 12px;
    border: 2px solid rgba(242, 197, 61, 0.7);
    border-radius: 8px;
    background-color: rgba(242, 197, 61, 0.1);
    color: #ffffff;
    font-family: inherit;
    font-size: 1.06rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.formelknap:hover:not(:disabled) { background-color: rgba(242, 197, 61, 0.28); border-color: #ffdf6b; }
.formelknap.forkert { border-color: var(--roed); background-color: rgba(224, 84, 70, 0.14); color: #f0a59d; opacity: 0.65; cursor: default; }

.felt-ok { font-size: 0.92rem; font-weight: 700; }