:root {
    --tooltip-background: #E0DCD6;
    --tooltip-text: #2A2520;
    --tooltip-border: #D8D3CD;
    --tooltip-shadow: 0 4px 12px rgba(30, 25, 20, 0.10);
}

body.dark-mode {
    --tooltip-background: #252933;
    --tooltip-text: #FFFFFF;
    --tooltip-border: #404556;
    --tooltip-shadow: 0 4px 12px rgba(13, 14, 20, 0.40);
}

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

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.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;
}

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

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

/* Blazor error UI */
#blazor-error-ui {
    background: #f44336;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 2000;
    color: white;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
        color: white;
        font-size: 1.5rem;
    }

    #blazor-error-ui .reload {
        color: white;
        text-decoration: underline;
    }

/* Blazor error boundary */
.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."
    }

/* Loading screen */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100dvh; /* dvh for correct mobile viewport (no address-bar overflow) */
    width: 100%;
    padding: 1rem;
    box-sizing: border-box;
    background-color: #0D0E14;
}

.loading-progress {
    position: relative;
    display: block;
    width: clamp(5rem, 20vw, 8rem); /* fluid size: comfortable on any screen */
    height: clamp(5rem, 20vw, 8rem);
    margin: 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #404556;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #597D7C; /* fallback matching dark palette Primary */
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

/* Utility Classes */
.gap-1 {
    gap: 0.25rem;
}

.gap-2 {
    gap: 0.5rem;
}

body:not(.dark-mode) .mud-tooltip {
    background-color: var(--tooltip-background) !important;
    color: var(--tooltip-text) !important;
    border: 1px solid var(--tooltip-border);
    box-shadow: var(--tooltip-shadow);
}

    body:not(.dark-mode) .mud-tooltip .mud-typography,
    body:not(.dark-mode) .mud-tooltip .mud-divider {
        color: var(--tooltip-text) !important;
        border-color: var(--tooltip-border) !important;
    }

    body:not(.dark-mode) .mud-tooltip.mud-tooltip-arrow::after {
        border-color: var(--tooltip-border) rgba(0, 0, 0, 0) rgba(0, 0, 0, 0) rgba(0, 0, 0, 0);
    }

body.dark-mode .mud-tooltip {
    background-color: var(--tooltip-background) !important;
    color: var(--tooltip-text) !important;
    border: 1px solid var(--tooltip-border);
    box-shadow: var(--tooltip-shadow);
}

    body.dark-mode .mud-tooltip .mud-typography,
    body.dark-mode .mud-tooltip .mud-divider {
        color: var(--tooltip-text) !important;
        border-color: var(--tooltip-border) !important;
    }

    body.dark-mode .mud-tooltip.mud-tooltip-arrow::after {
        border-color: var(--tooltip-border) rgba(0, 0, 0, 0) rgba(0, 0, 0, 0) rgba(0, 0, 0, 0);
    }

/* Responsive adjustments */
@media (max-width: 960px) {
    .bingo-grid {
        grid-template-columns: repeat(5, 1fr) !important;
    }
}

@media (max-width: 600px) {
    .bingo-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}