/* ===== Components ===== */

/* --- Score Board --- */
#score-board {
    font-family: var(--font);
    backdrop-filter: blur(4px);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 8px rgba(0,0,0,0.08);
}

@media (max-width: 600px) {
    #score-board {
        font-size: 0.85em;
        padding: 8px 12px;
        flex-wrap: wrap;
        gap: 4px;
    }

        #score-board .btn-sm {
            font-size: 0.75em;
            padding: 4px 10px;
        }
}

/* --- Challenge Board --- */
.challenge-board {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    min-width: 400px;
    margin-bottom: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

    .challenge-board .prompt {
        font-size: 1.1em;
        font-weight: 500;
        margin-bottom: 10px;
    }

    .challenge-board input,
    .challenge-board math-field,
    .challenge-board select {
        padding: 8px 12px;
        font-size: 16px;
        border: 1px solid #ccc;
        border-radius: 4px;
        width: 100%;
        box-sizing: border-box;
    }

    .challenge-board button {
        padding: 8px 16px;
        font-size: 0.9em;
        border-radius: 4px;
        margin-top: 5px;
    }

        .challenge-board button[data-check="true"] {
            background-color: var(--primary);
            color: white;
            border: none;
        }

        .challenge-board button[data-next="true"] {
            background-color: #198754;
            color: white;
            border: none;
        }

/* Responsive boards */
@media (max-width: 768px) {
    .challenge-board {
        min-width: 0 !important;
        width: 100%;
    }
}

/* --- Formula bar --- */
#demo-formula-box {
    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    word-wrap: break-word;
    max-width: 100vw !important;
    box-sizing: border-box;
}

#demo-formula-content {
    text-align: left !important;
    white-space: normal;
}

@media (max-width: 768px) {
    #demo-formula-box {
        font-size: 0.65em !important;
    }
}

/* --- Math fields --- */
math-field {
    border: 1px solid #ccc !important;
    border-radius: 4px;
    padding: 4px 8px;
}

/* --- Sliders (HTML replacement) --- */
#html-sliders-container {
    width: 100%;
    max-width: 100%;
    padding: 6px 0;
    box-sizing: border-box;
}

    #html-sliders-container > div {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        padding: 2px 0;
    }

    #html-sliders-container label {
        min-width: 50px;
        font-size: 0.9em;
        font-weight: 500;
        flex-shrink: 0;
    }

    #html-sliders-container input[type="range"] {
        flex: 1;
        min-width: 80px;
        height: 24px;
        margin: 0 4px;
        -webkit-appearance: none;
        appearance: none;
        background: #e0e0e0;
        border-radius: 4px;
    }

        #html-sliders-container input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
        }

        #html-sliders-container input[type="range"]::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
        }

    #html-sliders-container .value-display {
        min-width: 35px;
        text-align: right;
        font-size: 0.9em;
        flex-shrink: 0;
    }

@media (max-width: 600px) {
    #html-sliders-container > div {
        flex-wrap: nowrap;
        gap: 4px;
    }

    #html-sliders-container label {
        min-width: 40px;
        font-size: 0.75em;
    }

    #html-sliders-container input[type="range"] {
        height: 28px;
        min-width: 50px;
    }

    #html-sliders-container .value-display {
        min-width: 25px;
        font-size: 0.75em;
    }
}

/* JSXGraph slider overrides (mobile) */
@media (max-width: 768px) {
    .jsxgraph-slider-point circle {
        r: 8px;
    }

    .jsxgraph-slider-baseline {
        stroke-width: 3px;
    }

    .jsxgraph-slider-label {
        font-size: 11px;
    }
}

.jsxgraph-slider {
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.jsxgraph-slider-baseline {
    pointer-events: none;
}


/* --- Sliders (HTML replacement) --- */
#html-sliders-container {
    width: 100%;
    max-width: 100%;
    padding: 6px 0;
    box-sizing: border-box;
}

    #html-sliders-container > div {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        padding: 2px 0;
    }

    #html-sliders-container label {
        min-width: 50px;
        font-size: 0.9em;
        font-weight: 500;
        flex-shrink: 0;
    }

    #html-sliders-container input[type="range"] {
        flex: 1;
        min-width: 80px;
        height: 24px;
        margin: 0 4px;
        -webkit-appearance: none;
        appearance: none;
        background: #e0e0e0;
        border-radius: 4px;
    }

        #html-sliders-container input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
        }

        #html-sliders-container input[type="range"]::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
        }

    #html-sliders-container .value-display {
        min-width: 35px;
        text-align: right;
        font-size: 0.9em;
        flex-shrink: 0;
    }

@media (max-width: 600px) {
    #html-sliders-container > div {
        flex-wrap: nowrap;
        gap: 4px;
    }

    #html-sliders-container label {
        min-width: 40px;
        font-size: 0.75em;
    }

    #html-sliders-container input[type="range"] {
        height: 28px;
        min-width: 50px;
    }

    #html-sliders-container .value-display {
        min-width: 25px;
        font-size: 0.75em;
    }
}

/* JSXGraph slider overrides (mobile) */
@media (max-width: 768px) {
    .jsxgraph-slider-point circle {
        r: 4px;
    }

    .jsxgraph-slider-baseline {
        stroke-width: 3px;
    }

    .jsxgraph-slider-label {
        font-size: 11px;
    }
}

.jsxgraph-slider {
    touch-action: none;
    -webkit-user-select: none;
    user-select: none;
}

.jsxgraph-slider-baseline {
    pointer-events: none;
}

/* === Thumb styles – DESKTOP === */
#html-sliders-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary, #0d6efd);
    cursor: pointer;
}

#html-sliders-container input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary, #0d6efd);
    cursor: pointer;
}

/* === Thumb styles – MOBILE (keep thin track, but make thumb big enough to tap) === */
@media (max-width: 768px) {
    #html-sliders-container input[type="range"]::-webkit-slider-thumb {
        width: 20px; /* slightly larger for fat fingers */
        height: 20px;
    }

    #html-sliders-container input[type="range"]::-moz-range-thumb {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 768px) {
    #html-sliders-container input[type="range"] {
        height: 8px !important;
        min-width: 60px !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 4px !important;
    }

        #html-sliders-container input[type="range"]::-webkit-slider-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary, #0d6efd);
            cursor: pointer;
        }

        #html-sliders-container input[type="range"]::-moz-range-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary, #0d6efd);
            cursor: pointer;
        }
}