/* =====================================================================
   sc5.2 - Formel og aktuel koncentration
   Stilark. Samme udtryk som de andre superanimationer (grundlaget er sc4.5, felterne er
   sc7.4's). Nyt: gaettet paa fane 1 og knappen Start forfra.
   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.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; }

/* ---------------------------------------------------------------------
   BEREGNINGEN I KORTET paa fane 1, skrevet som eleverne skal skrive
   den: formlen foerst, saa tallene med enheder, lighedstegnene under
   hinanden og til sidst en konklusion i ord
   --------------------------------------------------------------------- */
.superberegning {
    margin: 8px 0 2px;
    padding: 8px 10px 9px;
    border-left: 3px solid var(--groen);
    border-radius: var(--radius-lil);
    background-color: rgba(255, 255, 255, 0.045);
}

.sb-etiket {
    display: block;
    margin-bottom: 7px;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.sb-gitter {
    display: grid;
    grid-template-columns: auto auto;
    justify-content: center;
    align-items: center;
    gap: 5px 6px;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--tekst);
    font-variant-numeric: tabular-nums;
}

.sb-v { text-align: right; white-space: nowrap; }
.sb-led { display: inline-block; white-space: nowrap; }
.sb-h b { color: #b8f0cf; }
.sb-skema { grid-column: 1 / -1; text-align: center; }
.sb-ny { margin-top: 9px; }
.superberegning .broek { font-size: 0.9em; margin: 0 2px; }

.sb-konklusion {
    margin: 10px 0 0;
    padding-top: 8px;
    border-top: 1px solid #3a3a47;
    font-size: 0.92rem;
    line-height: 1.45;
    color: var(--tekst);
}

/* Det smalle panel: den laengste linje (to salte) skal kunne staa paa én linje */
@media (max-width: 1320px) {
    .superberegning { padding-left: 8px; padding-right: 8px; }
    .sb-gitter { font-size: 0.92rem; }
}

/* Rosen, naar opgaven paa fane 1 er loest */
#opl-kort.sejr .besked.god::before { content: "✓ "; font-weight: 700; }


/* ---------------------------------------------------------------------
   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);
}

/* En formel i etiketten beholder sine smaa bogstaver (CaCl₂, ikke CACL₂) */
.raekke-etiket .formel { text-transform: none; letter-spacing: 0.02em; font-size: 0.8rem; }

.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; }

/* Spoergsmaalet efter opløsningen paa fane 1 (det besvarede staar i beregningen over det) */
.opgavekort .spm-nu { margin: 6px 0 4px; font-size: 1.02rem; font-weight: 700; line-height: 1.4; color: var(--tekst); }

/* 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; }

/* ---------------------------------------------------------------------
   SC5.2: opløsningsskemaet med felter, tallene i panelet
   --------------------------------------------------------------------- */
.skemarad {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 5px;
    min-height: 44px;
    padding: 6px 0 6px 10px;
    background-color: #1a1a22;
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--tekst);
}

.skemarad.aktiv { border-color: var(--blaa); }
.skemarad.aktiv:focus-within { border-color: var(--gul); box-shadow: 0 0 0 1px var(--gul); }
.skemarad.laast { opacity: 0.4; }
.skemarad.ok { border-color: rgba(63, 174, 114, 0.6); background-color: rgba(63, 174, 114, 0.13); color: #b8f0cf; }
.skemarad.svar { border-color: rgba(242, 197, 61, 0.55); background-color: rgba(242, 197, 61, 0.1); color: #f5dd8a; }
.skemarad.ryst { animation: ryst 0.35s ease 1; border-color: var(--roed); }
.skemarad .felt-ok { align-self: stretch; margin-left: auto; border-radius: 0 var(--radius-lil) var(--radius-lil) 0; }
.skemarad .felt-maerke { margin-left: auto; }
.sk-tekst { white-space: nowrap; }

input.koef {
    width: 34px;
    height: 32px;
    border: 2px dashed #d9731a;
    border-radius: 6px;
    background-color: #fff6ea;
    color: #c4610f;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 800;
    text-align: center;
    padding: 0;
    outline: none;
}

input.koef:focus { border-style: solid; box-shadow: 0 0 0 2px rgba(242, 197, 61, 0.6); }
input.koef:disabled { opacity: 0.6; }

/* Fane 2: vejen til svaret under opgavens tal (foerste trin foerst) */
.opgave-vej { margin: 6px 0 2px; font-size: 0.95rem; line-height: 1.45; color: var(--tekst); }