html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}
/* --- SoruÇöz --- */
:root {
    --ustalik-guclu: #1f9d55;
    --ustalik-gelisiyor: #e0a100;
    --ustalik-zayif: #d64545;
    --ustalik-yetersiz: #c9ced6;
}

.ozet-kartlari { display: flex; flex-wrap: wrap; gap: .75rem; }
.ozet-karti { border: 1px solid #dee2e6; border-radius: .5rem; padding: .75rem 1rem; min-width: 7.5rem; background: #fff; }
.ozet-karti .deger { font-size: 1.5rem; font-weight: 600; }
.ozet-karti .etiket { font-size: .8rem; color: #6c757d; }

.soru-karti { max-width: 46rem; }
.soru-metni { font-size: 1.1rem; line-height: 1.6; }
.soru-gorseli { max-height: 22rem; }
.siklar { display: grid; gap: .5rem; margin-top: 1rem; }
.sik { display: flex; align-items: center; gap: .75rem; text-align: left; border: 1px solid #ced4da; border-radius: .5rem;
       background: #fff; padding: .6rem .8rem; min-height: 2.75rem; }
.sik:hover:not(:disabled) { border-color: #0d6efd; }
.sik:focus-visible { outline: 3px solid #0d6efd; outline-offset: 2px; }
.sik:disabled { color: inherit; opacity: 1; }
.sik-harf { font-weight: 700; width: 1.6rem; height: 1.6rem; border-radius: 50%; border: 1px solid currentColor;
            display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sik-secili { border-color: #0d6efd; background: #e7f1ff; }
.sik-dogru { border-color: var(--ustalik-guclu); background: #e3f6ea; }
.sik-yanlis { border-color: var(--ustalik-zayif); background: #fdeaea; }

.matematik-girdisi { display: block; width: 100%; max-width: 30rem; font-size: 1.4rem; padding: .3rem .5rem;
                     border: 1px solid #ced4da; border-radius: .5rem; }

.geri-bildirim { border-left: 4px solid; padding: .6rem .9rem; border-radius: .25rem; max-width: 46rem; }
.geri-bildirim.dogru { border-color: var(--ustalik-guclu); background: #f0faf4; }
.geri-bildirim.yanlis { border-color: var(--ustalik-zayif); background: #fdf3f3; }

.ustalik-guclu { background: var(--ustalik-guclu) !important; color: #fff !important; }
.ustalik-gelisiyor { background: var(--ustalik-gelisiyor) !important; color: #212529 !important; }
.ustalik-zayif { background: var(--ustalik-zayif) !important; color: #fff !important; }
.ustalik-yetersiz { background: var(--ustalik-yetersiz) !important; color: #212529 !important; }
.lejant { display: flex; flex-wrap: wrap; gap: .5rem; font-size: .8rem; }
.lejant > span { padding: .15rem .5rem; border-radius: .25rem; }
.tekrar-isareti { border: 1px dashed #6c757d; }

.konu-satiri { display: grid; grid-template-columns: minmax(10rem, 16rem) 1fr; gap: .5rem; align-items: start;
               padding: .35rem 0; border-top: 1px solid #f0f0f0; }
.konu-adi { display: flex; flex-direction: column; gap: .25rem; align-items: flex-start; font-size: .95rem; }
.hucreler { display: flex; flex-wrap: wrap; gap: .35rem; }
.hucre { display: flex; flex-direction: column; justify-content: space-between; width: 9.5rem; min-height: 3.6rem;
         padding: .35rem .5rem; border-radius: .35rem; text-decoration: none; font-size: .78rem; }
.hucre:hover { filter: brightness(.95); }
.hucre.sorusuz { opacity: .45; cursor: default; }
.hucre-puan { font-weight: 700; font-size: 1rem; }
@media (max-width: 640px) {
    .konu-satiri { grid-template-columns: 1fr; }
    .hucre { width: calc(50% - .2rem); }
}

.onizleme-cerceve { border: 1px solid #dee2e6; border-radius: .5rem; padding: 1rem; background: #fff; }
.onizleme-cerceve.mobil { max-width: 360px; }

/* --- Sınıf ve test --- */
.sinif-kodu { display: inline-block; font-family: ui-monospace, Menlo, monospace; font-size: 1.4rem; letter-spacing: .2em;
              padding: .15rem .6rem; border: 2px dashed #6c757d; border-radius: .4rem; background: #f8f9fa; }
.test-ust-cubuk { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; gap: .75rem; align-items: center;
                  background: #fff; padding: .5rem 0; border-bottom: 1px solid #dee2e6; }
.kalan-sure { font-variant-numeric: tabular-nums; font-weight: 600; }
.kalan-sure.az { color: var(--ustalik-zayif); }
.soru-gezgini { display: flex; flex-wrap: wrap; gap: .35rem; }
.gezgin-dugme { width: 2.5rem; height: 2.5rem; border: 1px solid #ced4da; border-radius: .4rem; background: #fff; font-weight: 600; }
.gezgin-dugme.dolu { background: #e7f1ff; border-color: #0d6efd; }
.gezgin-dugme.emin-degil { box-shadow: inset 0 -4px 0 var(--ustalik-gelisiyor); }
.gezgin-dugme.aktif { outline: 3px solid #0d6efd; outline-offset: 1px; }

/* --- Raporlar --- */
.ozet-karti .fark { font-size: .8rem; font-weight: 600; color: #6c757d; }
.ozet-karti .fark.artis { color: var(--ustalik-guclu); }
.ozet-karti .fark.azalis { color: var(--ustalik-zayif); }
.grafik svg { width: 100%; height: auto; max-width: 900px; }
.lejant-cizgi { display: inline-block; width: 1.6rem; border-top: 3px solid; vertical-align: middle; }
.lejant-cizgi.kesik { border-top-style: dashed; }
.hata-cubugu { margin-bottom: .5rem; }
.hata-cubugu .cubuk { height: .5rem; background: #f1f3f5; border-radius: .25rem; overflow: hidden; }
.hata-cubugu .cubuk > div { height: 100%; background: var(--ustalik-gelisiyor); }
.bildirim-zili { position: relative; margin-right: auto; }
.bildirim-listesi { position: absolute; left: 0; top: 2.2rem; width: min(22rem, 90vw); max-height: 24rem; overflow-y: auto;
                    background: #fff; border: 1px solid #dee2e6; border-radius: .5rem; z-index: 20; }

/* --- Ziyaretçi düzeni ve landing --- */
.genel-duzen { min-height: 100vh; display: flex; flex-direction: column; background: #fbfcfe; }
.genel-duzen > main { flex: 1; }
.genel-ust { position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, .92); backdrop-filter: blur(6px); border-bottom: 1px solid #e9ecef; }
.genel-marka { font-weight: 800; font-size: 1.35rem; letter-spacing: -.02em; color: #1d3fb8; text-decoration: none; }
.genel-baglanti { color: #343a40; text-decoration: none; }
.genel-baglanti:hover { color: #1d3fb8; }
.genel-alt { border-top: 1px solid #e9ecef; background: #fff; }
.genel-alt a { color: inherit; }

.tanitim-hero { padding: 2rem 0 1rem; }
.tanitim-etiket { display: inline-block; font-size: .8rem; font-weight: 600; color: #1d3fb8; background: #e8eeff; border-radius: 2rem; padding: .25rem .75rem; }
.tanitim-baslik { font-size: clamp(2rem, 4.5vw, 3.1rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; margin: .75rem 0 1rem; }
.tanitim-baslik span { color: #1d3fb8; }
.tanitim-onizleme { background: linear-gradient(135deg, #e8eeff, #f6f0ff); border-radius: 1.25rem; padding: 1.25rem; }
.tanitim-kart { background: #fff; border: 1px solid #e3e7ef; border-radius: .9rem; padding: 1rem; box-shadow: 0 6px 20px rgba(29, 63, 184, .06); }
.tanitim-geri-bildirim { border-left: 4px solid var(--ustalik-zayif); background: #fdf3f3; padding: .5rem .75rem; border-radius: .25rem; }
.tanitim-onizleme .hucre { width: calc(50% - .2rem); }

.tanitim-serit { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 1rem; margin: 2rem 0;
                 padding: 1.25rem; background: #fff; border: 1px solid #e9ecef; border-radius: 1rem; }
.tanitim-serit div { display: flex; flex-direction: column; }
.tanitim-serit strong { font-size: 1.3rem; color: #1d3fb8; }
.tanitim-serit span { font-size: .85rem; color: #6c757d; }

.tanitim-bolum { padding: 2.5rem 0 1rem; scroll-margin-top: 4rem; }
.tanitim-bolum h2 { font-weight: 800; letter-spacing: -.02em; margin-bottom: 1.25rem; }
.tanitim-adim, .tanitim-ozellik { height: 100%; background: #fff; border: 1px solid #e9ecef; border-radius: 1rem; padding: 1.25rem; }
.tanitim-adim span { display: inline-flex; width: 2rem; height: 2rem; align-items: center; justify-content: center; border-radius: 50%;
                     background: #1d3fb8; color: #fff; font-weight: 700; }
.tanitim-adim h3, .tanitim-ozellik h3 { font-size: 1.1rem; font-weight: 700; margin: .75rem 0 .4rem; }
.tanitim-adim p, .tanitim-ozellik p { margin: 0; color: #495057; }
.tanitim-ozellik .simge { font-size: 1.6rem; }
.tanitim-ogretmen { background: #f2f5ff; border-radius: 1.25rem; padding: 2rem 1.5rem; margin-top: 2.5rem; }
.tanitim-liste { padding-left: 1.2rem; }
.tanitim-liste li { margin-bottom: .5rem; }
.tanitim-guven { background: #fff; border: 1px dashed #ced4da; border-radius: 1rem; padding: 1.25rem; }
.tanitim-son { margin: 2.5rem 0 1rem; padding: 2.5rem 1.5rem; border-radius: 1.25rem; text-align: center; color: #fff;
               background: linear-gradient(135deg, #1d3fb8, #5b2bb8); }
.tanitim-son h2 { font-weight: 800; margin-bottom: 1rem; }