/* =====================================================================
   NOTLÄSNING – css/ks-notereading.css
   (notereadingmenu.php, notereading.php, motorn js/ks-notereading.js)

   Allt utom notpapperet och klaviaturen använder temavariablerna.
   Notpapperet (.nr-papper) är ett notblad och klaviaturen ett piano –
   föremål med egna fasta färger i alla teman (svart på ljust).
   ===================================================================== */

/* Klaver och förtecken ur Noto Music (SIL OFL). unicode-range gör att
   typsnittet bara används för musiktecken, aldrig för vanlig text. */
@font-face {
    font-family: 'KS Noter';
    font-style: normal;
    font-weight: 400;
    font-display: block;
    src: url('../fonts/noto-music/noto-music-music-400-normal.woff2') format('woff2'),
         url('../fonts/noto-music/noto-music-music-400-normal.woff') format('woff');
    unicode-range: U+2669-266F, U+1D100-1D1EA;
}
.nr-klavikon, #klavVal .km-ikon { font-family: 'KS Noter', 'Exo 2', sans-serif; line-height: 1; }
#klavVal .km-ikon { font-size: 1.45rem; height: 2.1rem; display: flex; align-items: center; justify-content: center; overflow: visible; }
.sc-icon.nr-klavikon { font-size: 1.05rem; }

/* ── Spelytan ───────────────────────────────────────────────────── */
main .nr-yta { width: 100%; max-width: 980px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 12px; }
main .nr-spel { width: 100%; display: flex; flex-direction: column; align-items: center; }
main .nr-meddelande { min-height: 1.5em; text-align: center; font: 700 clamp(1rem, 2.1vw, 1.25rem) 'Exo 2', sans-serif; color: var(--color-text-primary); }
main .nr-meddelande.ratt { color: var(--color-success, #4ade80); }
main .nr-meddelande.fel { color: var(--color-error, #f87171); }
[data-theme="ljus"] main .nr-meddelande.ratt { color: #15803d; }
[data-theme="ljus"] main .nr-meddelande.fel { color: #b91c1c; }

/* Notpapperet */
main .nr-papper {
    background: #fffdf6; border-radius: 14px; padding: 6px 10px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, .28), inset 0 0 0 1px rgba(0, 0, 0, .06);
    display: flex; justify-content: center; align-items: center;
}
main .nr-system { display: block; width: 100%; height: auto; }
main .nr-papper.nr-stor { width: min(100%, 460px); }
main .nr-papper.nr-stor .nr-system { max-height: clamp(150px, 32vh, 280px); }
main .nr-papper.nr-bred { width: min(100%, 760px); }
main .nr-papper.nr-bred .nr-system { max-height: clamp(140px, 30vh, 260px); }
main .nr-papper.nr-mini { padding: 2px 4px; border-radius: 10px; box-shadow: none; }
main .nr-papper.nr-mini .nr-system { max-height: 96px; }
main .nr-papper.nr-liten { width: min(100%, 180px); box-shadow: none; }
main .nr-not { cursor: default; }
main .nr-gehor .nr-not { cursor: pointer; }

/* ── Svarsknappar ───────────────────────────────────────────────── */
main .nr-fraga, main .nr-gehor, main .nr-pianolage, main .nr-ord, main .nr-flash { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; }
main .nr-alt { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; width: min(100%, 560px); }
main .nr-gehor .nr-alt { grid-template-columns: repeat(3, minmax(0, 1fr)); }
main .nr-alt.nr-sju { grid-template-columns: repeat(7, minmax(0, 1fr)); width: min(100%, 640px); gap: 7px; }
:root main button.nr-svar:not(.sc-start):not(.ks-tts-figur) {
    position: relative; min-height: 58px; padding: 10px 6px; border-radius: 14px; cursor: pointer;
    background: var(--color-bg-secondary); color: var(--color-text-primary);
    border: 2px solid var(--color-border-subtle); box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .18);
    font: 800 clamp(1.15rem, 2.4vw, 1.5rem) 'Exo 2', sans-serif; transition: transform .08s, border-color .15s, background .15s;
}
:root main .nr-alt.nr-sju button.nr-svar:not(.sc-start):not(.ks-tts-figur) { min-height: 52px; padding: 8px 2px; font-size: clamp(1rem, 2.2vw, 1.35rem); }
:root main button.nr-svar:not(.sc-start):not(.ks-tts-figur):hover { border-color: var(--color-accent-gold); }
:root main button.nr-svar:not(.sc-start):not(.ks-tts-figur):active { transform: translateY(2px); }
:root main button.nr-svar:not(.sc-start):not(.ks-tts-figur):focus-visible { outline: 3px solid var(--color-accent-gold); outline-offset: 2px; }
:root main button.nr-svar.ratt:not(.sc-start):not(.ks-tts-figur),
:root main button.nr-svar.visa:not(.sc-start):not(.ks-tts-figur) { background: #166534; border-color: #4ade80; color: #fff; }
:root main button.nr-svar.visa:not(.sc-start):not(.ks-tts-figur) { background: transparent; color: var(--color-text-primary); border-style: dashed; }
:root main button.nr-svar.fel:not(.sc-start):not(.ks-tts-figur) { background: #991b1b; border-color: #f87171; color: #fff; }
:root main button.nr-svar.ratt-knapp:not(.sc-start):not(.ks-tts-figur) { border-color: color-mix(in srgb, #22c55e 60%, var(--color-border-subtle)); }
main .nr-svar kbd {
    position: absolute; top: 5px; left: 7px; font: 700 .68rem 'Exo 2', sans-serif; opacity: .6;
    background: none; border: 0; padding: 0; color: inherit;
}
main .skak { animation: nrSkak .4s; }
@keyframes nrSkak { 20% { transform: translateX(-6px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(3px); } }

/* ── Flashkort ──────────────────────────────────────────────────── */
:root main button.nr-kort:not(.sc-start):not(.ks-tts-figur) {
    position: relative; width: min(100%, 480px); aspect-ratio: 16 / 10; padding: 0; border: 0; background: none;
    perspective: 1200px; cursor: pointer; box-shadow: none;
}
main .nr-kort-fram, main .nr-kort-bak {
    position: absolute; inset: 0; border-radius: 18px; backface-visibility: hidden; -webkit-backface-visibility: hidden;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 14px;
    background: var(--color-bg-secondary); border: 2px solid var(--color-border-subtle);
    transition: transform .45s cubic-bezier(.2, .8, .2, 1);
}
main .nr-kort-bak { transform: rotateY(180deg); border-color: var(--color-accent-gold); }
main .nr-kort.vand .nr-kort-fram { transform: rotateY(-180deg); }
main .nr-kort.vand .nr-kort-bak { transform: rotateY(0); }
main .nr-kort .nr-papper.nr-stor { width: 92%; }
main .nr-kort-tips { font-size: .85rem; color: var(--color-text-muted); }
main .nr-kort-tips[hidden] { display: none; }
main .nr-kort-namn { font: 800 clamp(2.4rem, 7vw, 4rem) 'Exo 2', sans-serif; color: var(--color-text-primary); line-height: 1; }
main .nr-kort-okt { font-size: .9rem; color: var(--color-text-secondary); }
main .nr-flash-val { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: min(100%, 480px); }
main .nr-flash-val[hidden] { display: none; }

/* ── Memory ─────────────────────────────────────────────────────── */
main .nr-memory { display: grid; grid-template-columns: repeat(var(--kol, 4), minmax(0, 1fr)); gap: 10px; width: min(100%, 760px); }
:root main button.nr-mkort:not(.sc-start):not(.ks-tts-figur) {
    position: relative; aspect-ratio: 4 / 3; padding: 0; border: 0; background: none; perspective: 900px; cursor: pointer; box-shadow: none;
}
main .nr-mkort-fram, main .nr-mkort-bak {
    position: absolute; inset: 0; border-radius: 14px; display: grid; place-items: center; padding: 6px;
    backface-visibility: hidden; -webkit-backface-visibility: hidden; transition: transform .35s;
}
main .nr-mkort-bak {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-accent-gold) 30%, var(--color-bg-tertiary)), var(--color-bg-tertiary));
    border: 2px solid var(--color-border-subtle); color: var(--color-accent-gold); font: 800 2rem 'Exo 2', sans-serif;
}
main .nr-mkort-fram { background: var(--color-bg-secondary); border: 2px solid var(--color-border-subtle); transform: rotateY(180deg); }
main .nr-mkort.upp .nr-mkort-fram { transform: rotateY(0); }
main .nr-mkort.upp .nr-mkort-bak { transform: rotateY(-180deg); }
main .nr-mkort.par .nr-mkort-fram { border-color: #4ade80; box-shadow: 0 0 0 3px rgba(74, 222, 128, .25); }
main .nr-mkort-namn { font: 800 clamp(1.4rem, 3.2vw, 2.1rem) 'Exo 2', sans-serif; color: var(--color-text-primary); }
main .nr-mkort .nr-papper.nr-mini { width: 100%; }

/* ── Parning ────────────────────────────────────────────────────── */
main .nr-parning { position: relative; display: grid; grid-template-columns: minmax(140px, 230px) minmax(110px, 200px); justify-content: center; gap: clamp(48px, 12vw, 180px); width: min(100%, 760px); touch-action: none; }
main .nr-pkol { display: flex; flex-direction: column; gap: 10px; position: relative; z-index: 1; }
main .nr-linjer { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 2; overflow: visible; }
main .nr-linjer line { stroke-width: 4; stroke-linecap: round; }
main .nr-linjer line.klar { stroke: #22c55e; }
main .nr-linjer line.drar { stroke: var(--color-accent-gold); stroke-dasharray: 8 6; }
:root main button.nr-pnot:not(.sc-start):not(.ks-tts-figur) {
    padding: 4px; border-radius: 14px; background: var(--color-bg-secondary); border: 2px solid var(--color-border-subtle); cursor: grab; box-shadow: none;
}
:root main button.nr-pnot.vald:not(.sc-start):not(.ks-tts-figur) { border-color: var(--color-accent-gold); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent-gold) 35%, transparent); }
:root main button.nr-pnot.klar:not(.sc-start):not(.ks-tts-figur), :root main button.nr-pnamnk.klar:not(.sc-start):not(.ks-tts-figur) { border-color: #22c55e; opacity: .75; cursor: default; }
main .nr-pnot .nr-papper.nr-mini .nr-system { max-height: 80px; }
:root main button.nr-pnamnk:not(.sc-start):not(.ks-tts-figur) {
    flex: 1; min-height: 52px; border-radius: 14px; background: var(--color-bg-secondary); color: var(--color-text-primary);
    border: 2px solid var(--color-border-subtle); font: 800 clamp(1.2rem, 2.6vw, 1.6rem) 'Exo 2', sans-serif; cursor: pointer; box-shadow: none;
}
:root main button.nr-pnamnk:not(.sc-start):not(.ks-tts-figur):hover, :root main button.nr-pnot:not(.sc-start):not(.ks-tts-figur):hover { border-color: var(--color-accent-gold); }
:root main button.skak:not(.sc-start):not(.ks-tts-figur) { border-color: #f87171; }

/* ── Notord ─────────────────────────────────────────────────────── */
main .nr-rutor { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
main .nr-ruta {
    width: clamp(40px, 7vw, 56px); height: clamp(48px, 8vw, 64px); border-radius: 12px; display: grid; place-items: center;
    background: var(--color-bg-secondary); border: 2px dashed var(--color-border-subtle);
    font: 800 clamp(1.4rem, 3vw, 2rem) 'Exo 2', sans-serif; color: var(--color-text-primary);
}
main .nr-ruta.nu { border-color: var(--color-accent-gold); border-style: solid; }
main .nr-ruta.klar { border-color: #22c55e; border-style: solid; }

/* ── Klaviaturen (ett piano – egna färger i alla teman) ─────────── */
main .nr-pianobeh { width: 100%; overflow-x: auto; padding-bottom: 4px; display: flex; justify-content: center; }
main .nr-piano {
    --svb: calc(min(100%, 900px) / var(--vita) * .62);
    position: relative; display: flex; width: max(100%, calc(var(--vita) * 30px)); max-width: 900px;
    height: clamp(120px, 22vh, 190px); padding: 10px 10px 12px; border-radius: 12px;
    background: linear-gradient(#2a211b, #15100c); box-shadow: 0 8px 20px rgba(0, 0, 0, .35);
}
main .nr-piano button { font-family: 'Exo 2', sans-serif; }
:root main .nr-piano button.nr-vit:not(.sc-start):not(.ks-tts-figur) {
    flex: 1; height: 100%; margin: 0 1px; border-radius: 0 0 7px 7px; border: 1px solid #9ca3af; padding: 0 0 8px;
    background: linear-gradient(#fff, #f3f4f6 85%, #e5e7eb); color: #374151; display: flex; align-items: flex-end; justify-content: center;
    font-size: .78rem; font-weight: 700; cursor: pointer; box-shadow: none; min-width: 0;
}
main .nr-piano .nr-vit.nr-mitt span::after { content: '•'; display: block; text-align: center; color: #b45309; line-height: .6; }
:root main .nr-piano button.nr-svart:not(.sc-start):not(.ks-tts-figur) {
    position: absolute; top: 10px; width: var(--svb); height: 60%; z-index: 2; border-radius: 0 0 5px 5px; padding: 0;
    background: linear-gradient(#374151, #0b0b0b); border: 1px solid #000; cursor: pointer; box-shadow: 0 3px 4px rgba(0, 0, 0, .45);
}
:root main .nr-piano button.ratt:not(.sc-start):not(.ks-tts-figur) { background: #22c55e; color: #052e16; }
:root main .nr-piano button.fel:not(.sc-start):not(.ks-tts-figur) { background: #ef4444; color: #fff; }
:root main .nr-piano button.visa:not(.sc-start):not(.ks-tts-figur) { box-shadow: inset 0 0 0 4px #22c55e; }
:root main .nr-piano button:not(.sc-start):not(.ks-tts-figur):active { filter: brightness(.88); }

/* ── Gehör ──────────────────────────────────────────────────────── */
main .nr-gehor-tips { color: var(--color-text-secondary); font-size: .95rem; text-align: center; }

/* ── Vänsterpanelen ─────────────────────────────────────────────── */
main .nr-lage-rubrik { display: flex; align-items: center; gap: 8px; }
main .nr-lage-rubrik #lageIkon { -webkit-text-fill-color: initial; background: none; color: initial; }
main .nr-tid { font-variant-numeric: tabular-nums; }
main .nr-tid.snart { color: var(--color-error, #f87171); }

/* ── Menyn: resultat ────────────────────────────────────────────── */
main .nr-svara { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
main .nr-svara span {
    padding: 4px 10px; border-radius: 999px; background: var(--color-bg-tertiary); border: 1px solid var(--color-border-subtle);
    font-weight: 700; color: var(--color-text-primary); font-size: .9rem;
}
main .nr-svara span i { font-style: normal; font-family: 'KS Noter', sans-serif; margin-right: 4px; }

@media (max-width: 700px) {
    main .nr-alt { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    main .nr-alt.nr-sju { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    main .nr-gehor .nr-alt { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    main .nr-memory { --kol: 3 !important; }
    main .nr-parning { gap: 36px; }
}
@media (prefers-reduced-motion: reduce) {
    main .nr-kort-fram, main .nr-kort-bak, main .nr-mkort-fram, main .nr-mkort-bak { transition: none; }
    main .skak { animation: none; }
}