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;
}
/* ADMIN DASHBOARD TILE */
.admin-tile {
    cursor: pointer;
    background: #111827;
    border: 1px solid #1f2937;
    transition: all 0.25s ease;
}

    .admin-tile:hover {
        transform: translateY(-6px);
        border-color: #6366f1; /* indigo glow */
        box-shadow: 0 12px 30px rgba(99,102,241,0.25);
    }
.admin-tile:active {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(99,102,241,0.15);
}
    /* Make entire tile behave like a button */
    .admin-tile,
    .admin-tile * {
        cursor: pointer !important;
    }
/* Fix content hidden under top app bar */
.admin-content {
    margin-top: 64px; /* MudAppBar height */
}
.admin-content {
    margin-top: 72px;
}
/* Dark admin list items */
.admin-dark .list-group-item {
    background-color: #111827;
    color: #e5e7eb;
    border-color: #1f2937;
}

    .admin-dark .list-group-item:hover {
        background-color: #1f2937;
    }

    .admin-dark .list-group-item.active {
        background-color: #6366f1;
        border-color: #6366f1;
        color: #fff;
    }
/* ===== ADMIN DARK TEXT FIX ===== */
/* Base admin text */
.admin-dark {
    color: #cbd5f5;
}
    /* ===== API / DB DATA HIGHLIGHT ===== */
    .admin-dark span,
    .admin-dark td,
    .admin-dark li,
    .admin-dark p {
        color: #e0e7ff; /* brighter than base */
        font-weight: 500;
    }

    /* Tables data (most API content) */
    .admin-dark tbody td {
        color: #e0e7ff;
    }


    /* Headings thode bright */
    /* Headings / section titles */
    .admin-dark h1,
    .admin-dark h2,
    .admin-dark h3,
    .admin-dark h4,
    .admin-dark .fw-bold {
        color: #ffffff;
        letter-spacing: 0.3px;
    }
    .admin-dark .text-muted {
        color: #94a3b8;
    }
    /* Highlight API / DB values */
    .admin-dark .api-value {
        color: #a5b4fc; /* indigo highlight */
        font-weight: 600;
    }


    /* Muted text */
    .admin-dark .text-muted {
        color: #9ca3af !important;
    }

    /* Links */
    .admin-dark a {
        color: #60a5fa;
    }

    /* Buttons text safety */
    .admin-dark button {
        color: inherit;
    }
    /* ===== API / DB TEXT VISIBILITY FIX ===== */

    /* Common dynamic text: span, p, td, li */
    .admin-dark span,
    .admin-dark p,
    .admin-dark td,
    .admin-dark li {
        color: #e5e7eb; /* readable light text */
    }

    /* Tables (API data mostly yahin hota hai) */
    .admin-dark table,
    .admin-dark table td,
    .admin-dark table th {
        color: #e5e7eb;
    }

    /* Badges / small labels coming from API */
    .admin-dark .badge {
        color: #ffffff;
    }

    /* If API text is inside cards / list items */
    .admin-dark .list-group-item span,
    .admin-dark .list-group-item p {
        color: #e5e7eb;
    }
    /* FORCE highlight for API values */
    .admin-dark .api-value {
        color: #a5b4fc !important; /* strong indigo */
        font-weight: 600;
    }
/* Dark card inside admin */
.admin-dark-card {
    background: #111827;
    border: 1px solid #1f2937;
}

    /* Card body text */
    .admin-dark-card .card-body,
    .admin-dark-card .border {
        background: #020617;
        color: #e5e7eb;
    }
/* Badge text clarity */
.admin-dark .badge {
    font-weight: 600;
}
/* ===== DARK ADMIN CARDS ===== */
.admin-dark-card {
    background-color: #111827; /* deep dark */
    border: 1px solid #1f2937;
}

    .admin-dark-card .card-header {
        background-color: #020617;
        color: #f9fafb;
        border-bottom: 1px solid #1f2937;
    }

    .admin-dark-card .card-body {
        background-color: #020617;
    }

    /* List items inside dark cards */
    .admin-dark-card .list-group-item {
        background-color: #020617;
        color: #e5e7eb;
        border-color: #1f2937;
    }

        .admin-dark-card .list-group-item:hover {
            background-color: #1f2937;
        }

        .admin-dark-card .list-group-item.active {
            background-color: #6366f1;
            color: #fff;
        }
/* ===== FORCE ALL STATIC ADMIN TEXT BRIGHT ===== */

/* Card titles / headers */
.admin-dark .card-header,
.admin-dark .card-header *,
.admin-dark .card-title {
    color: #f9fafb !important;
}

/* Headings */
.admin-dark h1,
.admin-dark h2,
.admin-dark h3,
.admin-dark h4,
.admin-dark h5,
.admin-dark h6 {
    color: #f9fafb !important;
}

/* Labels, small titles */
.admin-dark label,
.admin-dark .fw-bold,
.admin-dark .form-label {
    color: #e5e7eb !important;
}

/* Static list items text */
.admin-dark .list-group-item {
    color: #e5e7eb !important;
}

/* Inputs text + placeholder */
.admin-dark input,
.admin-dark select,
.admin-dark textarea {
    background-color: #020617;
    color: #f9fafb !important;
    border-color: #1f2937;
}

    .admin-dark input::placeholder {
        color: #9ca3af;
    }

/* Alerts (like DEBUG box) */
.admin-dark .alert {
    background-color: #020617;
    color: #e5e7eb;
    border-color: #1f2937;
}

/* Buttons text safety */
.admin-dark .btn {
    color: #f9fafb;
}
/* ===== DARK SAFE SELECT DROPDOWN ===== */
.admin-dark select {
    background-color: #020617;
    color: #f9fafb;
    border: 1px solid #1f2937;
}

    /* dropdown options */
    .admin-dark select option {
        background-color: #020617;
        color: #f9fafb;
    }

        /* selected option */
        .admin-dark select option:checked {
            background-color: #6366f1;
            color: #ffffff;
        }

        /* hover (browser dependent but helps) */
        .admin-dark select option:hover {
            background-color: #1f2937;
            color: #ffffff;
        }
/* ===== ADMIN DARK TABLE FIX ===== */
/* ================= FINAL ADMIN DARK FORCE FIX ================= */

/* TABLE TEXT (API DATA) */
.admin-dark table td,
.admin-dark table th,
.admin-dark table tr,
.admin-dark table span,
.admin-dark table li,
.admin-dark table p {
    color: #ffffff !important;
}

/* TABLE BACKGROUND */
.admin-dark table,
.admin-dark table tbody,
.admin-dark table thead,
.admin-dark table tr {
    background-color: #020617 !important;
}

    /* TABLE ROW HOVER */
    .admin-dark table tbody tr:hover {
        background-color: #1f2937 !important;
    }

/* CARD CONTENT */
.admin-dark .card,
.admin-dark .card-body,
.admin-dark .card-header {
    background-color: #020617 !important;
    color: #ffffff !important;
}

/* LIST GROUP (subjects / chapters / topics) */
.admin-dark .list-group-item {
    background-color: #020617 !important;
    color: #ffffff !important;
    border-color: #1f2937 !important;
}

    .admin-dark .list-group-item:hover {
        background-color: #1f2937 !important;
    }

    .admin-dark .list-group-item.active {
        background-color: #6366f1 !important;
        color: #ffffff !important;
    }

/* INPUT / SELECT TEXT */
.admin-dark input,
.admin-dark select,
.admin-dark textarea {
    background-color: #020617 !important;
    color: #ffffff !important;
    border-color: #1f2937 !important;
}
/* ================= BOOTSTRAP TABLE FORCE DARK FIX ================= */

.admin-dark table,
.admin-dark .table,
.admin-dark .table-bordered {
    background-color: #020617 !important;
    color: #ffffff !important;
}

    /* TABLE HEAD */
    .admin-dark .table thead th {
        background-color: #020617 !important;
        color: #ffffff !important;
        border-color: #374151 !important;
    }

    /* TABLE BODY */
    .admin-dark .table tbody td,
    .admin-dark .table tbody th {
        color: #ffffff !important;
        background-color: #020617 !important;
    }

    /* TABLE ROW HOVER */
    .admin-dark .table tbody tr:hover td {
        background-color: #1f2937 !important;
        color: #ffffff !important;
    }

    /* LIST INSIDE TABLE (Attempted tests) */
    .admin-dark table ul,
    .admin-dark table li {
        color: #ffffff !important;
    }

/* MUTED TEXT OVERRIDE */
.admin-dark .text-muted {
    color: #9ca3af !important;
}

@media (max-width: 768px) {

    .modal-box {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }

    .modal-header {
        font-size: 14px;
        padding: 10px;
    }

    .modal-close {
        font-size: 22px;
    }
}
/* =========================
   ?? MOBILE RESPONSIVE FIX
   ========================= */

@media (max-width: 768px) {

    .node {
        margin-left: 12px;
    }

    .card {
        flex-direction: column;
        gap: 8px;
        padding: 10px;
    }

    .toggle {
        font-size: 22px;
        width: 100%;
        text-align: left;
    }

    .stats {
        font-size: 12px;
        line-height: 1.4;
    }

    .btn-row {
        gap: 6px;
    }

    .btn {
        flex: 1 1 48%;
        text-align: center;
        font-size: 12px;
        padding: 6px;
    }
}