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;
}

/* Sidebar collapsible group chevron: points down when collapsed, up when expanded. */
.acc-chevron {
    transition: transform 0.2s ease;
    transform: rotate(180deg);
}

.acc-toggle:checked ~ label .acc-chevron {
    transform: rotate(0deg);
}

/* ===== Admin sidebar: responsive drawer + collapsible rail ===== */

/* The small brand mark is only shown in the collapsed rail. */
.sidebar-brand-mark { display: none; }

/* Small screens: sidebar becomes an off-canvas drawer with a backdrop. */
@media (max-width: 1023.98px) {
    #admin-sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: 0 10px 30px rgba(2, 6, 23, 0.12);
    }
    #admin-shell.sidebar-open #admin-sidebar { transform: translateX(0); }

    #admin-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        z-index: 40;
        background: rgba(15, 23, 42, 0.4);
    }
    #admin-shell.sidebar-open #admin-backdrop { display: block; }
}

/* Large screens: collapsible icon-only rail. */
@media (min-width: 1024px) {
    #admin-backdrop { display: none !important; }

    #admin-sidebar {
        width: 18rem;
        transition: width 0.2s ease;
    }
    #admin-shell.sidebar-collapsed #admin-sidebar { width: 5rem; }

    /* Hide labels, badges, chevrons, submenus and the wide logo in the rail. */
    #admin-shell.sidebar-collapsed #admin-sidebar .nav-label,
    #admin-shell.sidebar-collapsed #admin-sidebar .nav-badge,
    #admin-shell.sidebar-collapsed #admin-sidebar .acc-chevron,
    #admin-shell.sidebar-collapsed #admin-sidebar .acc-panel,
    #admin-shell.sidebar-collapsed #admin-sidebar .sidebar-brand-full,
    #admin-shell.sidebar-collapsed #admin-sidebar .sidebar-footer {
        display: none;
    }
    #admin-shell.sidebar-collapsed #admin-sidebar .sidebar-brand-mark { display: grid; }

    /* Center the icons in each row. */
    #admin-shell.sidebar-collapsed #admin-sidebar .nav-row,
    #admin-shell.sidebar-collapsed #admin-sidebar .sidebar-head {
        justify-content: center;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

/* ===== Filter dropdowns (popovers) ===== */
.dd-panel {
    position: absolute;
    z-index: 30;
    top: calc(100% + 0.375rem);
    left: 0;
    min-width: 15rem;
    max-height: 20rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;            /* the inner list scrolls, not the whole panel */
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    box-shadow: 0 12px 32px rgba(2, 6, 23, 0.14);
}
/* Two-class specificity so it always beats .dd-panel's display:flex. */
.dd-panel.hidden { display: none; }
.dd-panel.dd-right { left: auto; right: 0; }

/* Scrollable option list; the date popover's own content sits here too. */
.dd-list {
    overflow-y: auto;
    min-height: 0;
    padding: 0.375rem;
}

.dd-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: #334155;
    cursor: pointer;
    user-select: none;
}
.dd-option:hover { background: #f1f5f9; }
.dd-option .dd-check { opacity: 0; color: #39858C; flex-shrink: 0; }
.dd-option.is-selected { color: #0f172a; font-weight: 500; }
.dd-option.is-selected .dd-check { opacity: 1; }

/* Custom checkbox box for multi-select options. */
.dd-box {
    display: grid;
    place-items: center;
    width: 1.05rem;
    height: 1.05rem;
    flex-shrink: 0;
    border: 1.5px solid #cbd5e1;
    border-radius: 0.3rem;
    color: #fff;
    background: #fff;
    transition: background 0.12s ease, border-color 0.12s ease;
}
.dd-box svg { opacity: 0; }
.dd-box.is-on { background: #39858C; border-color: #39858C; }
.dd-box.is-on svg { opacity: 1; }

/* Fixed Clear/Apply footer for multi-select panels: a non-scrolling flex row that
   always sits at the bottom while the .dd-list above it scrolls. */
.dd-footer {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    background: #fff;
    border-top: 1px solid #e2e8f0;
}

/* ===== KPI cards (compact on mobile, larger from sm up) ===== */
.kpi-card {
    --tint: transparent;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    background-color: #fff;
    /* Diagonal flow: small colored glows clipped into the top-left and bottom-right
       corners only; the rest of the card stays white. */
    background-image:
        radial-gradient(circle at top left, var(--tint), transparent 28%),
        radial-gradient(circle at bottom right, var(--tint), transparent 28%);
    padding: 0.625rem;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.kpi-card:hover { border-color: #cbd5e1; box-shadow: 0 1px 2px rgba(2, 6, 23, 0.05); }

/* Tints feed the corner glows. Single-class tones come from the metric color (analytics
   cards); the two-class category tints override them for Payment Summary groups. */
.tone-emerald { --tint: rgba(16, 185, 129, 0.13); }
.tone-blue { --tint: rgba(59, 130, 246, 0.13); }
.tone-amber { --tint: rgba(245, 158, 11, 0.15); }
.tone-violet { --tint: rgba(139, 92, 246, 0.13); }
.tone-rose { --tint: rgba(244, 63, 94, 0.12); }
.tone-cyan { --tint: rgba(6, 182, 212, 0.13); }

.kpi-card.kpi-total { --tint: rgba(16, 185, 129, 0.14); border-color: #d1fae5; }
.kpi-card.kpi-subscription { --tint: rgba(59, 130, 246, 0.13); border-color: #dbeafe; }
.kpi-card.kpi-livetraining { --tint: rgba(245, 158, 11, 0.15); border-color: #fef3c7; }
.kpi-card.kpi-videocourse { --tint: rgba(139, 92, 246, 0.13); border-color: #ede9fe; }
.kpi-label {
    font-size: 0.625rem;
    line-height: 1.1;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #94a3b8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.kpi-value {
    margin-top: 0.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: #0f172a;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.kpi-chip {
    display: grid;
    place-items: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 0.5rem;
    flex-shrink: 0;
}
.kpi-chip svg { width: 0.85rem; height: 0.85rem; }

@media (min-width: 640px) {
    .kpi-card { padding: 1rem; border-radius: 1rem; }
    .kpi-label { font-size: 0.75rem; }
    .kpi-value { margin-top: 0.375rem; font-size: 1.25rem; }
    .kpi-chip { width: 2.25rem; height: 2.25rem; border-radius: 0.75rem; }
    .kpi-chip svg { width: 1.25rem; height: 1.25rem; }
}

/* ===== Area chart ===== */
.chart-wrap { position: relative; width: 100%; }
.chart-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-tooltip {
    position: absolute;
    z-index: 5;
    pointer-events: none;
    transform: translate(-50%, -115%);
    background: #0f172a;
    color: #fff;
    border-radius: 0.5rem;
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: 0 6px 18px rgba(2, 6, 23, 0.25);
    opacity: 0;
    transition: opacity 0.12s ease;
}
.chart-tooltip.is-visible { opacity: 1; }
.chart-tooltip .ct-val { font-weight: 600; }
.chart-tooltip .ct-label { color: #cbd5e1; margin-top: 0.1rem; }