/* =====================================================================
   sc3.3 - Polære molekyler
   Stilark. Samme udtryk som de andre superanimationer (sc2.1, sc6.8).
   BEMAERK: decimaltal skrives med PUNKTUM i CSS (0.25rem), aldrig med
   dansk komma.
   ===================================================================== */

:root {
    --bund:        #1b1b21;
    --scene-bund:  #14141a;
    --panel:       #2b2b36;
    --panel-2:     #333340;
    --panel-3:     #3d3d4b;
    --linje:       #464655;
    --tekst:       #f2f3f5;
    --tekst-svag:  #c8ced6;
    --tekst-mat:   #9aa1ab;

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

    --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; }

.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);
    font-size: 0.76rem;
    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; }

.topknap {
    background-color: var(--panel-2);
    color: var(--tekst-svag);
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    padding: 7px 14px;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}

.topknap:hover { background-color: var(--panel-3); color: var(--tekst); border-color: #5e5e70; }

.ikonknap {
    background-color: var(--roed-mork);
    border: 1px solid var(--roed);
    color: #e3e6ea;
    border-radius: var(--radius-lil);
    width: 34px;
    height: 32px;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    flex-shrink: 0;
}

.ikonknap:hover { background-color: var(--roed); color: #ffffff; }

/* ---------------------------------------------------------------------
   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%; touch-action: none; cursor: grab; }

/* Korte beskeder nederst paa scenen */
.scenebesked {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translate(-50%, 8px);
    max-width: calc(100% - 40px);
    padding: 8px 18px;
    border-radius: var(--radius);
    background-color: rgba(20, 20, 26, 0.92);
    border: 1px solid rgba(242, 197, 61, 0.4);
    box-shadow: var(--skygge);
    font-size: 0.95rem;
    font-weight: 600;
    color: #f0d77a;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 6;
}

.scenebesked.vis { opacity: 1; transform: translate(-50%, 0); }

/* Prikformlen oeverst til venstre paa scenen */
.prikpanel {
    position: absolute;
    top: 14px;
    left: 14px;
    width: 238px;
    padding: 7px 8px 6px;
    background-color: rgba(34, 34, 43, 0.9);
    border: 1px solid var(--linje);
    border-radius: var(--radius);
    box-shadow: var(--skygge);
    pointer-events: none;
    z-index: 5;
}

.prik-titel { font-size: 0.76rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--tekst-mat); text-align: center; }
.prikpanel canvas { display: block; width: 220px; height: 150px; }

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

.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: 0.76rem;
    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 > h2 .taeller { font-size: 0.78rem; letter-spacing: 0.02em; text-transform: none; color: var(--tekst-mat); font-weight: 600; white-space: nowrap; }
.kort > h2 .taeller b { color: var(--tekst); }

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

.besked { margin: 0; font-size: 0.88rem; line-height: 1.5; color: var(--tekst-svag); }
.besked:empty { display: none; }
.besked.god   { color: #7ee0a8; }
.besked.skidt { color: #f0918a; }
.besked.gul   { color: #f0d77a; }

/* ----- Valg, afkrydsning og molekylemenu -------------------------------- */
.tjekraekke { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; margin-top: 9px; }
.kort > h2 + .tjekraekke { margin-top: 0; }

.tjek { display: flex; align-items: center; gap: 7px; font-size: 0.88rem; color: var(--tekst-svag); cursor: pointer; }
.tjek input { accent-color: var(--blaa); width: 15px; height: 15px; cursor: pointer; margin: 0; }
.tjek:has(input:disabled) { opacity: 0.45; cursor: not-allowed; }

.molvalg { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 5px; }

.molknap {
    background-color: var(--panel-2);
    border: 1px solid #45454f;
    border-radius: var(--radius-lil);
    padding: 7px 4px;
    font-family: inherit;
    color: var(--tekst);
    cursor: pointer;
    min-width: 0;
    transition: background-color 0.16s ease, border-color 0.16s ease;
}

.molknap .mformel { font-size: 1rem; font-weight: 600; white-space: nowrap; }
.molknap:hover:not(:disabled) { background-color: var(--panel-3); border-color: #5e5e70; }
.molknap.valgt { background-color: rgba(61, 158, 224, 0.24); border-color: var(--blaa); box-shadow: 0 0 0 1px var(--blaa); }
.molknap:disabled { opacity: 0.35; cursor: not-allowed; }

/* ----- Formlen og talraekkerne ------------------------------------------ */
.formelvis {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
    background-color: #0e1a14;
    border: 1px solid #21402f;
    border-radius: var(--radius-lil);
    padding: 7px 12px;
    margin-bottom: 6px;
}

.fformel { font-size: 1.7rem; font-weight: 600; line-height: 1.15; }
.fformel.ukendt { color: var(--tekst-mat); }
.fnavn { font-size: 0.9rem; color: #7ee0a8; }

@keyframes formelglimt {
    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); }
}

.formelvis.ny { animation: formelglimt 0.9s ease-out 1; }

.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: 0.88rem;
    color: var(--tekst-svag);
}

.talraekke + .talraekke { margin-top: 5px; }
.talraekke.sum { background-color: rgba(255, 255, 255, 0.09); font-weight: 600; margin-top: 6px; align-items: center; }
.talraekke .tal { font-weight: 700; color: var(--tekst); font-variant-numeric: tabular-nums; white-space: nowrap; }
.tal.gul { color: var(--gul); }

.bindingsraekke {
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 255, 255, 0.045);
    border-radius: var(--radius-lil);
    padding: 5px 10px;
    font-size: 0.88rem;
}

.bindingsraekke + .bindingsraekke { margin-top: 5px; }
.bnavn { font-weight: 700; color: var(--tekst); }
.bregning { color: var(--tekst-svag); font-variant-numeric: tabular-nums; }
.bregning b { color: var(--tekst); }

.maerke {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.maerke.groen  { background-color: rgba(63, 174, 114, 0.22); color: #7ee0a8; border: 1px solid rgba(63, 174, 114, 0.5); }
.maerke.orange { background-color: rgba(230, 137, 42, 0.2); color: #f2b06a; border: 1px solid rgba(230, 137, 42, 0.5); }
.maerke.graa   { background-color: rgba(255, 255, 255, 0.06); color: var(--tekst-mat); border: 1px solid #4a4a58; }

/* ----- Opgaverne --------------------------------------------------------- */
.opgave-spm { margin: 0; font-size: 0.92rem; line-height: 1.45; color: var(--tekst); }
.opgave-spm:empty { display: none; }

.valg { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin: 9px 0 0; }
.valg.en-spalte { grid-template-columns: minmax(0, 1fr); }

.valgknap {
    background-color: var(--panel-2);
    color: var(--tekst);
    border: 1px solid #4a4a58;
    border-radius: var(--radius-lil);
    padding: 8px 8px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.14s ease, border-color 0.14s ease;
}

.valg.en-spalte .valgknap { text-align: left; padding: 9px 11px; font-size: 0.9rem; }
.valgknap:hover:not(:disabled) { background-color: var(--panel-3); border-color: #5e5e70; }
.valgknap:disabled { cursor: default; opacity: 0.45; }
.valgknap.rigtig { background-color: var(--groen-mork); border-color: var(--groen); color: #ffffff; opacity: 1; }
.valgknap.forkert { background-color: var(--roed-mork); border-color: var(--roed); color: #ffffff; opacity: 0.75; }

.opgavekort .besked { margin-top: 8px; }

/* ---------------------------------------------------------------------
   KNAPPER
   --------------------------------------------------------------------- */
.knap {
    display: flex;
    align-items: center;
    justify-content: center;
    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: 0.9rem;
    font-weight: 600;
    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; }

.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; }
.knap.nulstil:hover:not(:disabled) { background-color: rgba(224, 84, 70, 0.16); border-color: var(--roed); }
.knap.lille { padding: 5px 11px; font-size: 0.86rem; }
.tjekraekke .knap.lille { margin-left: auto; }

.knaprad { display: flex; gap: 6px; margin-top: 10px; }
.knaprad .knap { flex: 1; }

.knapper { display: flex; justify-content: flex-end; margin-top: 18px; }
.knapper .knap { min-width: 110px; }

@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; }

/* ---------------------------------------------------------------------
   TEORIBOKSEN
   --------------------------------------------------------------------- */
.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 26px;
}

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

.teoriliste { display: flex; flex-direction: column; gap: 10px; }

.teorikort {
    background-color: rgba(0, 0, 0, 0.26);
    border: 1px solid #3a3a47;
    border-left: 3px solid var(--blaa);
    border-radius: var(--radius-lil);
    padding: 10px 13px;
}

.teorikort h4 { margin: 0 0 4px 0; font-size: 0.95rem; font-weight: 600; color: var(--tekst); }
.teorikort p { margin: 0; font-size: 0.9rem; line-height: 1.55; color: #c2c9d2; }
.teorikort p + p { margin-top: 5px; }
.teorikort b { color: var(--gul); font-weight: 600; }

/* ---------------------------------------------------------------------
   RUNDVISNINGEN (samme som sc6.8)
   --------------------------------------------------------------------- */
.rundvisning { position: fixed; inset: 0; z-index: 200; }
.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;
}

.rundvisning-hoved { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.rundvisning-tal { font-size: 0.76rem; font-weight: 700; letter-spacing: 0.07em; color: var(--tekst-mat); }
.rundvisning-luk { background: transparent; border: none; color: var(--tekst-svag); font-size: 0.95rem; cursor: pointer; padding: 2px 4px; }
.rundvisning-boks h3 { margin: 0 0 6px 0; font-size: 1rem; color: var(--gul); }
.rundvisning-boks p { margin: 0; font-size: 0.9rem; line-height: 1.5; color: var(--tekst-svag); }
.rundvisning-knapper { display: flex; justify-content: space-between; gap: 8px; margin-top: 14px; }
.rundvisning-knapper .knap { flex: 1; }

/* ---------------------------------------------------------------------
   FANE 1: DET LILLE PERIODISKE SYSTEM
   Syv kolonner (hovedgruppe 1, 2 og 13-17) og fire perioder. Feltets
   farve foelger elektronegativiteten (js/sim_en.js). Tomme felter er
   grundstoffer, der ikke er med; de svarer ogsaa paa klik.
   --------------------------------------------------------------------- */
.pt { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }

.pt-felt {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    aspect-ratio: 1 / 1;
    min-width: 0;
    padding: 0;
    border: 2px solid transparent;
    border-radius: var(--radius-lil);
    color: #ffffff;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.08s ease, opacity 0.15s ease, box-shadow 0.15s ease;
}

.pt-symbol { font-size: 1.15rem; font-weight: 700; line-height: 1.05; }
.pt-en { font-size: 0.8rem; font-weight: 600; line-height: 1.05; opacity: 0.92; font-variant-numeric: tabular-nums; }
.pt-felt:hover { transform: scale(1.06); box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.35); }
.pt-felt:active { transform: scale(0.95); }
.pt-felt.valgt { box-shadow: 0 0 0 3px var(--gul); }
.pt-felt.spaerret { opacity: 0.4; }
.pt-felt.spaerret:hover { transform: none; }

.pt-felt.tom {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px dashed #4a4a58;
    color: #7c838d;
    font-size: 0.8rem;
    font-weight: 600;
}

.pt-felt.tom:hover { transform: none; box-shadow: none; border-color: #6a6a7a; }
.pt-hul { display: block; }
#en-laerred { cursor: default; }

.note { margin: 9px 0 0; font-size: 0.86rem; line-height: 1.45; color: var(--tekst-mat); }

.maerke.roed { background-color: rgba(224, 84, 70, 0.2); color: #f0918a; border: 1px solid rgba(224, 84, 70, 0.55); }

/* Beskeder paa fane 1 staar foroven, saa de ikke daekker skalaen */
#en-besked { bottom: auto; top: 70px; transform: translate(-50%, -8px); }
#en-besked.vis { transform: translate(-50%, 0); }

/* ---------------------------------------------------------------------
   FANE 3: RESULTATSKEMA, NAESTE SKRIDT OG TEGNESERIE
   --------------------------------------------------------------------- */
.kort.fremhaev { border-left: 3px solid var(--blaa); }

/* Linjen over skemaet: det naeste, eleven skal goere */
.naeste {
    margin: 0 0 8px 0;
    padding: 8px 10px;
    border-radius: var(--radius-lil);
    background-color: rgba(42, 118, 172, 0.3);
    color: #ffffff;
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.4;
}

#vand-skema .resultater { margin-bottom: 4px; }
.resultater td.maaler { color: #bfe0f7; font-weight: 600; background-color: rgba(61, 158, 224, 0.18); }
.resultater td.ny { animation: nyt-resultat 1.4s ease-out; }

@keyframes nyt-resultat {
    0%   { background-color: rgba(63, 174, 114, 0.55); }
    100% { background-color: rgba(63, 174, 114, 0); }
}

.knap.stor { width: 100%; padding: 10px 13px; margin-top: 10px; }

.overlay-boks.bred { max-width: 1000px; }
.serie { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.rude { background-color: #16161c; border: 1px solid #3f3f4d; border-radius: var(--radius-lil); padding: 8px; }
.rude canvas { display: block; width: 100%; border-radius: 5px; }
.rude p { margin: 7px 0 0 0; font-size: 0.88rem; line-height: 1.45; color: var(--tekst-svag); }
.rude > p:first-child { margin: 2px 0 8px 0; }
.rude .nr { color: var(--gul); font-weight: 700; margin-right: 6px; }

.resultater { width: 100%; border-collapse: collapse; font-size: 0.86rem; table-layout: fixed; }
.resultater th { text-align: left; font-weight: 600; color: var(--tekst-svag); padding: 6px 4px 6px 0; }
.resultater tr:first-child th { text-align: center; color: var(--gul); font-size: 0.76rem; letter-spacing: 0.04em; text-transform: uppercase; }
.resultater tr:first-child th:first-child { width: 26%; }
.resultater td { text-align: center; font-weight: 700; color: var(--tekst); padding: 6px 2px; line-height: 1.3; }
.resultater td.ikke { color: var(--tekst-mat); font-weight: 400; }
.resultater tr + tr th, .resultater tr + tr td { border-top: 1px solid #3a3a47; }

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

@media (max-width: 1320px) {
    :root { --panel-bredde: 380px; }
    .top h1 .lang { display: none; }
}

@media (max-width: 1100px) {
    .top { gap: 10px; padding: 8px 12px; }
    .faneknap { padding: 7px 10px; font-size: 0.82rem; gap: 6px; }
    .prikpanel { width: 190px; }
    .prikpanel canvas { width: 172px; height: 118px; }
}

@media (max-width: 860px) {
    body { overflow: auto; }
    .top { flex-wrap: wrap; }
    .faneknapper { order: 3; width: 100%; flex: none; }
    .fane { position: static; grid-template-columns: minmax(0, 1fr); }
    .scene { height: 65vh; min-height: 420px; }
    .panel { border-left: none; border-top: 1px solid #1f1f27; }
}

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