/* =====================================================================
   sc8.6 - Korrosion
   Stilark. Grundlaget er sc1.4 og sb4.4 (statuslinjen, opgavekortet,
   listen). Nyt nederst: tidsknappen og aarstallet, kontakterne, valget
   af metal under roerene, tavlen med skemaet og spaendingsraekken.
   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); }
/* ---------------------------------------------------------------------
   STATUSLINJEN nederst i scenen: naeste skridt, fejl, hint og ros, og
   den ene knap. Den staar der, hvor eleven kigger, saa der ikke skal
   ledes efter teksten i et hjoerne (brugerens valg 30. sept. 2026).
   --------------------------------------------------------------------- */
.statuslinje {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 68px;
    padding: 10px 14px;
    border-top: 1px solid #33343f;
    border-left: 5px solid #4a4a58;
    background-color: #191a21;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.st-tekst {
    flex: 1;
    margin: 0;
    font-size: 1rem;
    line-height: 1.45;
    color: #cfd6de;
}

.st-tekst:empty::before { content: "\00a0"; }

/* Maerket forrest i linjen: Hint 2 af 3, Ikke endnu, Afstemt */
.b-maerke {
    display: inline-block;
    margin-right: 7px;
    padding: 2px 9px;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.1);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #dfe4ea;
    vertical-align: 1px;
}

.b-maerke.stor { font-size: 0.95rem; padding: 3px 12px; }

.statuslinje.skidt { border-left-color: var(--roed); background-color: #231a1c; }
.statuslinje.skidt .st-tekst { color: #ffb3aa; }
.statuslinje.skidt .b-maerke { background-color: rgba(224, 84, 70, 0.3); color: #ffd7d2; }

.statuslinje.god { border-left-color: var(--groen); background-color: #17241e; }
.statuslinje.god .st-tekst { color: #b8f0cf; }
.statuslinje.god .b-maerke { background-color: rgba(63, 174, 114, 0.35); color: #d6ffe8; }

.statuslinje.hint,
.statuslinje.gul { border-left-color: var(--gul); background-color: #23201a; }
.statuslinje.hint .st-tekst,
.statuslinje.gul .st-tekst { color: #f7e4ab; }
.statuslinje.hint .b-maerke,
.statuslinje.gul .b-maerke { background-color: rgba(242, 197, 61, 0.3); color: #fff2cc; }

.statuslinje.peger { border-left-color: var(--blaa); }

@keyframes st-ryst {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-7px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(2px); }
}

.statuslinje.ryster { animation: st-ryst 0.4s ease-in-out 1; }

/* Hjaelpeknappen: stor nok til at oejet finder den af sig selv */
.statuslinje .knap {
    flex: 0 0 auto;
    justify-content: center;
    min-width: 190px;
    padding: 12px 20px;
    font-size: 0.98rem;
    font-weight: 700;
}

.knap.hjaelp {
    background-color: rgba(242, 197, 61, 0.12);
    border-color: rgba(242, 197, 61, 0.65);
    color: #f7e4ab;
}

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

/* Efter et forkert svar peger knappen stille paa sig selv */
@keyframes knap-peg {
    0%, 100% { box-shadow: 0 0 0 0 rgba(242, 197, 61, 0); }
    50% { box-shadow: 0 0 0 5px rgba(242, 197, 61, 0.22); }
}

.knap.hjaelp.peg { animation: knap-peg 1.9s ease-in-out infinite; border-color: var(--gul); }

.knap.videre {
    background-color: var(--groen-mork);
    border-color: #5fcf92;
    color: #ffffff;
}

.knap.videre:hover:not(:disabled) { background-color: var(--groen); }

/* Forfra: den lille knap ved siden af */
.statuslinje .forfraknap { position: static; flex: 0 0 auto; }

/* ---------------------------------------------------------------------
   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 i Kemichaels baand, til venstre for knappen, der sender ham ud */
.forfraknap {
    /* I statuslinjen staar den i raekken; reglerne nedenfor er resten */
    position: static;
    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; }


/* ---------------------------------------------------------------------
   SC8.2: tavlen paa fane 1 (samme farver som tavlen paa laerredet i
   js/tegning.js), felterne over atomerne, regnestykket og brikkerne
   --------------------------------------------------------------------- */
.tavle {
    --fs: 56px;
    position: absolute;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: calc(var(--fs) * 0.3);
    padding: 34px 20px 16px;
    background: linear-gradient(135deg, #22302b, #1b2622);
    border: 10px solid #6d4c2f;
    border-radius: 8px;
    box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.35), inset 0 0 0 2px rgba(0, 0, 0, 0.45);
    color: #e9eee9;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.tavle.faerdig { box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.35), inset 0 0 0 2px rgba(0, 0, 0, 0.45), 0 0 0 3px rgba(63, 174, 114, 0.7); }
/* ---------------------------------------------------------------------
   SC8.2: listen med formlerne i panelet
   --------------------------------------------------------------------- */
.opg-liste { display: flex; flex-direction: column; gap: 10px; }

.opg-hoved {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.opg-tal { letter-spacing: 0.02em; text-transform: none; }

.opg-chips { display: flex; flex-wrap: wrap; gap: 5px; }

.opg-chip {
    display: inline-flex;
    align-items: baseline;
    gap: 3px;
    background-color: var(--panel-2);
    color: var(--tekst);
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    padding: 5px 9px;
    font-family: inherit;
    font-size: 0.98rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.opg-chip:hover { background-color: var(--panel-3); border-color: #5e5e70; }
.opg-chip.loest { border-color: rgba(63, 174, 114, 0.65); }
.opg-chip.valgt { border-color: var(--blaa); background-color: rgba(61, 158, 224, 0.2); }
.oc-m { font-style: normal; font-size: 0.78rem; color: #7ee0a8; }
.oc-m:empty { display: none; }
.opg-chip.stjerne .oc-m { color: var(--gul); }


.tv-navn {
    position: absolute;
    top: 8px;
    left: 16px;
    font-size: 1rem;
    font-weight: 700;
    color: #9fb1a9;
}

/* Genvejene i teorien */
kbd {
    display: inline-block;
    padding: 1px 6px;
    border: 1px solid #5e5e70;
    border-bottom-width: 2px;
    border-radius: 4px;
    background-color: var(--panel-2);
    font-family: inherit;
    font-size: 0.8rem;
    color: var(--tekst);
}

.overlay-boks p.genveje { font-size: 0.85rem; color: var(--tekst-svag); margin-top: 12px; }

/* Teoriens smaa overskrifter og fremgangsmaaden i trin */
.overlay-boks h3.teori-hoved {
    margin: 16px 0 6px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gul);
}

.teori-trin { margin: 0 0 12px; padding-left: 22px; }
.eksempel-hoved .f { text-transform: none; letter-spacing: 0.02em; }
.teori-trin li { margin: 0 0 5px; font-size: 0.95rem; line-height: 1.5; color: #dde3ea; }
.teori-trin li::marker { color: var(--gul); font-weight: 700; }

/* ---------------------------------------------------------------------
   SC1.4: panelets smaa tekster, loeste reaktioner i listen
   --------------------------------------------------------------------- */
.note-tekst { margin: 0 0 4px; font-size: 0.86rem; line-height: 1.45; color: var(--tekst-svag); }
.opg-chip.loest { background-color: rgba(63, 174, 114, 0.2); border-color: rgba(63, 174, 114, 0.75); }
.opg-chip.loest.valgt { border-color: var(--blaa); }
.opg-chip { min-width: 2.2em; justify-content: center; }

/* ---------------------------------------------------------------------
   SB4.4: svarknapperne, listen med navne og tavlens ryst og stempel
   --------------------------------------------------------------------- */
.valgrad .knap { gap: 10px; line-height: 1.35; font-size: 0.92rem; }

.v-bogstav {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    font-size: 0.76rem;
    font-weight: 800;
    color: var(--tekst-svag);
}

.v-prik { flex: 0 0 auto; width: 14px; height: 14px; border-radius: 50%; }

.opg-chips.lodret { flex-direction: column; }
.opg-chips.lodret .opg-chip { justify-content: flex-start; gap: 8px; font-size: 0.92rem; padding: 7px 10px; text-align: left; }
.opg-chips.lodret .oc-m { margin-left: auto; }
.oc-f { display: inline-flex; align-items: center; gap: 8px; }

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

.opg-chip.valgt .oc-nr { background-color: var(--blaa); color: #ffffff; }

.tavle.ryst { animation: ryst 0.35s ease 1; }

/* ---------------------------------------------------------------------
   SC8.6: tiden oeverst i scenen (fane 1 og 2)
   --------------------------------------------------------------------- */
.vaerktoej {
    position: absolute;
    z-index: 3;
    top: 12px;
    left: 14px;
    display: flex;
    align-items: stretch;
    gap: 10px;
}

.aar {
    position: relative;
    display: flex;
    align-items: baseline;
    gap: 7px;
    min-width: 128px;
    padding: 9px 12px 13px;
    border: 1px solid #3d4150;
    border-radius: var(--radius);
    background-color: rgba(20, 21, 28, 0.9);
}

.aar.kort-aar { min-width: 84px; padding-bottom: 9px; }

.aar-etiket {
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gul);
}

.aar b { font-size: 1.5rem; line-height: 1; font-variant-numeric: tabular-nums; }
.aar-af { font-size: 0.82rem; color: var(--tekst-mat); }

.aar-bjaelke {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 5px;
    height: 3px;
    border-radius: 2px;
    background-color: #3a3d4a;
    overflow: hidden;
}

.aar-bjaelke i { display: block; width: 0; height: 100%; background-color: var(--gul); }

.tidknap {
    min-width: 176px;
    padding: 10px 20px;
    border: 1px solid #5fcf92;
    border-radius: var(--radius);
    background-color: var(--groen-mork);
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.35);
}

.tidknap:hover:not(:disabled) { background-color: var(--groen); }
.tidknap:active:not(:disabled) { transform: scale(0.97); }
.tidknap:disabled { opacity: 0.55; cursor: default; }

@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); }
}

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

/* ---------------------------------------------------------------------
   SC8.6: kontakterne (plastmuffen paa fane 1; vand, ilt og salt paa fane 3)
   --------------------------------------------------------------------- */
.kontakter {
    position: absolute;
    z-index: 3;
    top: 12px;
    left: 14px;
    display: flex;
    gap: 8px;
}

.kontakt {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 8px 14px 8px 12px;
    border: 2px solid #5e5e70;
    border-radius: var(--radius);
    background-color: var(--panel-2);
    color: var(--tekst-svag);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.kontakt::before {
    content: "";
    width: 34px;
    height: 18px;
    flex: 0 0 auto;
    border-radius: 999px;
    background-color: #4a4a58;
    box-shadow: inset -16px 0 0 -14px #cfd6de;
    transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.kontakt:hover { background-color: var(--panel-3); border-color: #7a7a90; color: var(--tekst); }
.kontakt.til { background-color: #1f3649; border-color: var(--blaa); color: #d6ecff; }
.kontakt.til::before { background-color: var(--blaa); box-shadow: inset 16px 0 0 -14px #ffffff; }

/* ---------------------------------------------------------------------
   SC8.6: fane 1, metallet til hvert roer (staar under roeret)
   --------------------------------------------------------------------- */
.metalvalg {
    position: absolute;
    z-index: 3;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border: 1px solid #3d4150;
    border-radius: var(--radius);
    background-color: rgba(20, 21, 28, 0.9);
    white-space: nowrap;
}

.mv-etiket {
    margin: 0 4px 0 2px;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.metalvalg button {
    padding: 7px 12px;
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    background-color: var(--panel-2);
    color: var(--tekst-svag);
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
}

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

/* ---------------------------------------------------------------------
   SC8.6: fane 3, tavlen med skemaet over statuslinjen
   --------------------------------------------------------------------- */
.skematavle {
    position: absolute;
    z-index: 3;
    left: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 92px;
    padding: 20px 16px 10px;
    background: linear-gradient(135deg, #22302b, #1b2622);
    border: 8px solid #6d4c2f;
    border-radius: 8px;
    box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.35), inset 0 0 0 2px rgba(0, 0, 0, 0.45);
    color: #e9eee9;
}

.skematavle.faerdig { box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.35), inset 0 0 0 2px rgba(0, 0, 0, 0.45), 0 0 0 3px rgba(63, 174, 114, 0.7); }
.skematavle.ryst { animation: ryst 0.35s ease 1; }

.st-navn {
    position: absolute;
    top: 6px;
    left: 14px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #9fb1a9;
}

.st-linje {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 6px 11px;
    font-size: clamp(1.1rem, 1.85vw, 1.7rem);
    font-weight: 600;
}

.st-led { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
.st-tegn { color: #9fb1a9; }
.st-tal { color: #7ee0a8; }

.st-felt {
    width: 2.1em;
    padding: 3px 2px;
    border: 2px solid #8fa39a;
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.3);
    color: #ffffff;
    font-family: inherit;
    font-size: inherit;
    font-weight: 700;
    text-align: center;
    outline: none;
}

.st-felt:focus { border-color: var(--gul); box-shadow: 0 0 0 2px rgba(242, 197, 61, 0.35); }
.st-felt.mangler { border-color: var(--roed); }

.st-stempel {
    flex: 0 0 auto;
    padding: 6px 14px;
    border: 3px solid #5fcf92;
    border-radius: 8px;
    color: #7ee0a8;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    white-space: nowrap;
    transform: rotate(-4deg);
}

.tjekknap {
    flex: 0 0 auto;
    min-width: 110px;
    padding: 11px 20px;
    border: 1px solid #5fcf92;
    border-radius: var(--radius);
    background-color: var(--groen-mork);
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

.tjekknap:hover { background-color: var(--groen); }
.tjekknap:active { transform: scale(0.97); }

/* ---------------------------------------------------------------------
   SC8.6: panelet. Spaendingsraekken, gaettet og de smaa tabeller
   --------------------------------------------------------------------- */
.rk-ender {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.rk { display: grid; grid-template-columns: repeat(16, minmax(0, 1fr)); gap: 2px; }

.rk-m {
    padding: 4px 0;
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.04);
    text-align: center;
    font-size: 0.76rem;
    font-weight: 700;
    color: #6f7682;
}

.rk-m.med { background-color: var(--panel-3); color: var(--tekst); }
.rk-m.valgt { box-shadow: inset 0 0 0 2px var(--blaa); }
.rk-m.anode { background-color: var(--gul); color: #2a2103; box-shadow: none; }

.gaet-linje { margin: 0 0 6px; font-size: 0.88rem; line-height: 1.4; color: var(--tekst-svag); }
.gaet-linje b { color: var(--tekst); }

.tal.roed { color: #f0a070; }
#r-proevet .talraekke .tal { white-space: normal; text-align: right; font-size: 0.86rem; }
#r-proevet .talraekke > span:first-child { white-space: nowrap; }

.rl-navn {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.maal-tekst { font-size: 1.02rem; }