/* =====================================================================
   sb9.1 - Absorptionsspektre
   Stilark. Samme udtryk som de andre superanimationer (grundlaget er
   sb2.1 og sc1.4 med statuslinjen). Nyt nederst: scenen er et laerred
   med opgavelinjen foroven, knapperne i scenen og statuslinjen forneden,
   og panelets stoftekster.
   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;
    --groen:       #3fae72;
    --groen-mork:  #2b7d51;
    --roed:        #e05446;
    --gul:         #f2c53d;
    --lilla:       #9b6bd6;

    --op:          #8ff0b4;   /* produkterne og taelleren */
    --ned:         #9fd3f7;   /* reaktanterne og naevneren */

    --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); }
.ikonknap.tekstknap { width: auto; padding: 0 10px; font-family: inherit; font-size: 0.82rem; font-weight: 600; }
.quizknap.loest { border-color: #5fcf92; color: #b8f0cf; }

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

/* Scenen: vaeggen fra sc1.4 tegnet med CSS, tavlen og bakken ovenpaa og
   statuslinjen nederst. Skriften paa tavlen foelger scenens stoerrelse. */
.scene {
    position: relative;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    container-type: size;
    background:
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 64px),
        linear-gradient(#262833, #1d1f27);
}

.arbejde {
    --fs: clamp(20px, min(3.7cqw, 5.4cqh), 46px);
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(10px, 2.2cqh, 22px);
    padding: clamp(10px, 2cqh, 22px) clamp(12px, 3cqw, 34px);
}

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

.note-tekst { margin: 0 0 4px; font-size: 0.92rem; line-height: 1.5; color: #c8ced6; }

@keyframes ryst {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

@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.sejr { border-left-color: var(--groen); animation: glimt 0.9s ease-out 2; }

/* Forklaringen i kortet, naar opgaven er loest */
.forklaring {
    margin-top: 10px;
    padding: 10px 12px;
    border-left: 3px solid var(--groen);
    border-radius: 0 var(--radius-lil) var(--radius-lil) 0;
    background-color: rgba(63, 174, 114, 0.08);
}

.fk-broek { margin-bottom: 8px; font-size: 1.15rem; font-weight: 700; color: #d6ffe8; }
.forklaring p { margin: 0; font-size: 0.92rem; line-height: 1.55; color: #dde3ea; }

/* En broek med taeller over naevner, i panelet og i teorien */
.vbroek {
    display: inline-flex;
    flex-direction: column;
    vertical-align: middle;
    text-align: center;
    line-height: 1.2;
    margin: 0 2px;
}

.vbroek > span { padding: 0 4px; white-space: nowrap; }
.vbroek > span:first-child { border-bottom: 2px solid currentColor; }

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

/* 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 og quizzen
   --------------------------------------------------------------------- */
.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: 640px;
    width: 100%;
    max-height: 100%;
    overflow-y: auto;
    padding: 22px 24px;
}

.overlay-boks h2 { margin: 0 0 12px 0; font-size: 1.15rem; color: var(--blaa); }
.overlay-boks p { margin: 0 0 10px; font-size: 0.95rem; line-height: 1.55; color: #dde3ea; }
.overlay-boks p.genveje { font-size: 0.85rem; color: var(--tekst-svag); margin-top: 12px; }

.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; }
.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; }

.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: 1.05rem;
    font-weight: 600;
    color: var(--tekst);
}

.eksempel-hoved {
    display: block;
    margin-bottom: 5px;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--lilla);
}

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);
}

/* ---------------------------------------------------------------------
   RUNDVISNINGEN (samme som i sc1.4)
   --------------------------------------------------------------------- */
.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; }

/* ---------------------------------------------------------------------
   STATUSLINJEN nederst i scenen (som sc1.4): naeste skridt, fejl, hint og
   ros, og den ene knap. Her staar den i scenens kolonne, ikke oven paa
   et laerred.
   --------------------------------------------------------------------- */
.statuslinje {
    position: relative;
    flex: 0 0 auto;
    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"; }
.st-tekst sub { font-size: 0.7em; }

/* Maerket forrest i linjen: Hint 2 af 3, Ikke endnu, Rigtigt */
.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); }

.forfraknap {
    flex: 0 0 auto;
    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); }

/* ---------------------------------------------------------------------
   LISTEN med opgaverne i panelet (som sc1.4)
   --------------------------------------------------------------------- */
.opg-liste { display: flex; flex-direction: column; gap: 10px; }

.opg-hoved {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.74rem;
    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;
    justify-content: center;
    gap: 3px;
    min-width: 2.2em;
    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.paabegyndt { border-color: rgba(242, 197, 61, 0.7); }
.opg-chip.loest { background-color: rgba(63, 174, 114, 0.2); border-color: rgba(63, 174, 114, 0.75); }
.opg-chip.valgt { border-color: var(--blaa); background-color: rgba(61, 158, 224, 0.2); }
.opg-chip.loest.valgt { background-color: rgba(63, 174, 114, 0.2); border-color: var(--blaa); }
.oc-m { font-style: normal; font-size: 0.78rem; color: #7ee0a8; }
.oc-m:empty { display: none; }
.opg-chip.stjerne .oc-m { color: var(--gul); }

/* ---------------------------------------------------------------------
   QUIZZEN
   --------------------------------------------------------------------- */
.quiz-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--tekst-mat);
}

.quiz-bar { height: 6px; margin-bottom: 16px; border-radius: 3px; background-color: var(--panel-3); overflow: hidden; }
.quiz-bar span { display: block; height: 100%; background-color: var(--lilla); transition: width 0.3s ease; }

.overlay-boks .quiz-q { margin: 0 0 12px; font-size: 1.08rem; font-weight: 700; color: #ffffff; }
.quiz-svar { display: flex; flex-direction: column; gap: 8px; }
.knap.quiz-valg { justify-content: flex-start; padding: 11px 14px; font-size: 0.98rem; }
.knap.quiz-valg:disabled { cursor: default; }
.knap.quiz-valg.rigtig { border-color: var(--groen); background-color: rgba(63, 174, 114, 0.2); opacity: 1; }
.knap.quiz-valg.forkert { border-color: var(--roed); background-color: rgba(224, 84, 70, 0.18); opacity: 1; }

.quiz-fb { margin-top: 14px; padding: 10px 12px; border-left: 3px solid; border-radius: 0 var(--radius-lil) var(--radius-lil) 0; }
.quiz-fb.ok { border-color: var(--groen); background-color: rgba(63, 174, 114, 0.1); }
.quiz-fb.nej { border-color: var(--roed); background-color: rgba(224, 84, 70, 0.1); }
.overlay-boks .quiz-dom { margin: 0 0 4px; font-weight: 700; }
.quiz-fb.ok .quiz-dom { color: #7ee0a8; }
.quiz-fb.nej .quiz-dom { color: #f0918a; }
.overlay-boks .quiz-hvorfor { margin: 0; font-size: 0.92rem; color: #c8ced6; }

.quiz-knapper { display: flex; gap: 8px; margin-top: 14px; }
.quiz-knapper .knap { flex: 1; justify-content: center; }

.quiz-resultat { padding: 10px 0 4px; text-align: center; }
.quiz-tal { font-size: 2.6rem; font-weight: 800; color: var(--gul); }
.quiz-resultat.alle .quiz-tal { color: #7ee0a8; }

/* ---------------------------------------------------------------------
   SB9.1: scenen er et laerred. Opgavelinjen staar foroven, knapperne
   lige over statuslinjen, og statuslinjen nederst oven paa laerredet.
   --------------------------------------------------------------------- */
.scene {
    display: block;
    container-type: normal;
}

.scene > canvas {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
}

.anker { position: absolute; pointer-events: none; }

.scene > .opgavelinje {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 12px;
    z-index: 3;
    width: auto;
    margin: 0;
    padding: 2px 0 2px 12px;
    border-left: 4px solid var(--gul);
    font-size: 1.12rem;
    font-weight: 600;
    line-height: 1.35;
    color: #e9eef4;
    pointer-events: none;
}

.statuslinje {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
}

.scene-valg {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 80px;
    z-index: 3;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 16px;
    pointer-events: none;
}

.scene-valg:empty { display: none; }
.scene-valg.lodret { gap: 8px; }

.valgknap {
    pointer-events: auto;
    min-width: 120px;
    min-height: 46px;
    padding: 9px 18px;
    border: 2px solid #5e5e70;
    border-radius: var(--radius);
    background-color: var(--panel-2);
    color: var(--tekst);
    font-family: inherit;
    font-size: 1.02rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

.valgknap:hover:not(:disabled) { background-color: var(--panel-3); border-color: var(--gul); }
.valgknap:active:not(:disabled) { transform: scale(0.97); }
.valgknap.vend { border-color: var(--blaa); background-color: rgba(61, 158, 224, 0.16); color: #cfe8fb; }
.valgknap.tjek { border-color: #5fcf92; background-color: var(--groen-mork); color: #ffffff; }
.valgknap.tjek:hover:not(:disabled) { background-color: var(--groen); }
.valgknap.rigtig { border-color: var(--groen); background-color: rgba(63, 174, 114, 0.32); color: #d6ffe8; }
.valgknap.forkert { border-color: var(--roed); background-color: rgba(224, 84, 70, 0.24); color: #ffd7d2; }
.valgknap:disabled { cursor: default; opacity: 0.4; }
.valgknap.rigtig:disabled, .valgknap.forkert:disabled { opacity: 1; }
.valgknap.gaetknap { min-width: min(420px, 100%); background-color: rgba(242, 197, 61, 0.1); border-color: rgba(242, 197, 61, 0.6); }
.valgknap.gaetknap:hover:not(:disabled) { background-color: rgba(242, 197, 61, 0.22); border-color: var(--gul); }

/* Farveknapperne: en lille proeve foran navnet */
.valgknap.farveknap { min-width: 104px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }

.fk-proeve {
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.65);
    flex-shrink: 0;
}

.fk-proeve.tom { background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.25) 0 2px, transparent 2px 5px); }

/* ---------------------------------------------------------------------
   SB9.1: panelets tekster
   --------------------------------------------------------------------- */
.maal-tekst { margin: 0 0 6px; font-size: 1rem; line-height: 1.45; color: #e9eef4; }
.maal-tekst b { color: var(--gul); }
.stofnavn { margin: 0 0 4px; font-size: 1.2rem; font-weight: 700; color: var(--gul); }
.stofnavn .formel { margin-left: 6px; font-size: 0.95rem; font-weight: 600; color: var(--tekst-svag); }
.forklaring p + p { margin-top: 7px; }
.forklaring p.maal { color: #b8f0cf; }

.trinliste { margin: 8px 0 2px; padding-left: 22px; }
.trinliste li { margin: 0 0 4px; font-size: 0.95rem; line-height: 1.45; color: var(--tekst-mat); }
.trinliste li.aktiv { color: var(--tekst); font-weight: 700; }
.trinliste li.ok { color: #7ee0a8; }
.trinliste li::marker { color: var(--gul); font-weight: 700; }

.teori-tabel { width: 100%; margin: 4px 0 12px; border-collapse: collapse; font-size: 0.9rem; }
.teori-tabel th, .teori-tabel td { padding: 5px 6px; border: 1px solid var(--linje); text-align: center; color: #dde3ea; }
.teori-tabel th { text-align: left; color: var(--gul); white-space: nowrap; }

/* ---------------------------------------------------------------------
   TILGAENGELIGHED OG SMALLE SKAERME
   --------------------------------------------------------------------- */
button: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; }
    .statuslinje .knap { min-width: 160px; padding: 11px 14px; }
}

@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: 82vh; min-height: 560px; }
    .panel { border-left: none; border-top: 1px solid #1f1f27; }
}

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