html {
    overflow-y: auto;
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

#hid-webapp {
    /* Keeps the root flush when a host page styles it. */
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
    font-family: "Roboto", sans-serif;
    color: var(--text-primary);
    background-color: var(--page-bg);
    user-select: none;
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
}

#hid-webapp img {
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: none;
}

/* Local fonts with Orbitron's line heights, so the web font swaps in at the same height. */
@font-face {
    font-family: "Orbitron Fallback";
    font-weight: 700;
    src:
        local("Orbitron Bold"), local("Arial Bold"), local("Arial-BoldMT"),
        local("Liberation Sans Bold"), local("Arimo Bold"), local("DejaVu Sans Bold");
    ascent-override: 101.1%;
    descent-override: 24.3%;
    line-gap-override: 0%;
}

#hid-webapp h1 {
    font-family: "Orbitron", "Orbitron Fallback", sans-serif;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
}

#hid-webapp .page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#hid-webapp .page-header h1 {
    margin-top: 0;
}

#hid-webapp .back-link {
    font-size: 0.85rem;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    padding: 0.35rem 0.8rem;
    text-decoration: none;
    transition:
        background 0.15s,
        color 0.15s;
}

#hid-webapp .back-link:hover {
    background: var(--accent-color);
    color: #fff;
}

#hid-webapp button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
    background-color: var(--accent-color);
    transition: all 0.3s ease;
}

#hid-webapp button:hover {
    filter: brightness(0.92);
    transform: translateY(-2px) scale(1.05);
}

#hid-webapp button:active {
    transform: translateY(1px) scale(0.98);
}

#hid-webapp select {
    padding: 0.6rem 2.5rem 0.6rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid #ccc;
    font-size: 1rem;
    font-weight: 600;
    width: 10rem;
    transition: border-color 0.3s;
    background-image: var(--select-arrow);
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    background-size: 0.75rem;
    appearance: none;
    box-sizing: border-box;
    text-align: center;
    text-align-last: center;
}

#hid-webapp .settings-input {
    width: 100%;
    padding: 0.6rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid #ccc;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: border-color 0.3s;
    background-color: transparent;
    color: inherit;
    box-sizing: border-box;
    -moz-appearance: textfield;
}

#hid-webapp .settings-input::-webkit-outer-spin-button,
#hid-webapp .settings-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#hid-webapp.dark-mode select,
#hid-webapp.dark-mode .settings-input,
#hid-webapp.dark-mode .bug-form-input,
#hid-webapp.dark-mode .bug-form-textarea,
#hid-webapp.dark-mode .click-assignment-select {
    background-color: var(--surface-input);
    color: var(--text-primary);
    border-color: var(--border-input);
}

#hid-webapp.dark-mode select,
#hid-webapp.dark-mode .click-assignment-select {
    background-image: var(--select-arrow);
}

#hid-webapp select:focus,
#hid-webapp .settings-input:focus,
#hid-webapp .bug-form-input:focus,
#hid-webapp .bug-form-textarea:focus,
#hid-webapp .click-assignment-select:focus {
    border-color: var(--accent-color);
    outline: none;
}

#hid-webapp .settings-slider {
    width: 10rem;
    height: 0.375rem;
    border-radius: 0.1875rem;
    background: var(--slider-track);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

/* Separate webkit and moz rules: a browser drops a whole list with an unknown pseudo-element. */
#hid-webapp .settings-slider::-webkit-slider-thumb,
#hid-webapp .angle-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    box-shadow: var(--shadow-slider-thumb);
    transition: transform 0.2s ease;
}

#hid-webapp .settings-slider::-webkit-slider-thumb:hover,
#hid-webapp .angle-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

#hid-webapp .settings-slider::-moz-range-thumb,
#hid-webapp .angle-slider::-moz-range-thumb {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-slider-thumb);
    transition: transform 0.2s ease;
}

#hid-webapp .settings-slider::-moz-range-thumb:hover,
#hid-webapp .angle-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

#hid-webapp .advanced-mode-toggle,
#hid-webapp .toggle,
#hid-webapp .config-toggle {
    position: relative;
    width: 3rem;
    height: 1.625rem;
}

#hid-webapp .advanced-mode-toggle input,
#hid-webapp .toggle input,
#hid-webapp .config-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

#hid-webapp .advanced-mode-toggle .track,
#hid-webapp .toggle .track,
#hid-webapp .config-toggle .track {
    position: absolute;
    inset: 0;
    background: var(--track-off);
    border-radius: 999px;
    transition: background 0.25s ease;
}

#hid-webapp .advanced-mode-toggle .knob,
#hid-webapp .toggle .knob,
#hid-webapp .config-toggle .knob {
    position: absolute;
    top: 0.1875rem;
    left: 0.1875rem;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    background: #fff;
    transition: transform 0.25s ease;
    box-shadow: var(--shadow-toggle-knob);
}

#hid-webapp .advanced-mode-toggle input:checked ~ .track,
#hid-webapp .toggle input:checked ~ .track,
#hid-webapp .config-toggle input:checked ~ .track {
    background: var(--accent-color);
}

#hid-webapp .advanced-mode-toggle input:checked ~ .knob,
#hid-webapp .toggle input:checked ~ .knob,
#hid-webapp .config-toggle input:checked ~ .knob {
    transform: translateX(1.375rem);
}

#hid-webapp .advanced-mode-toggle input:focus-visible ~ .track,
#hid-webapp .toggle input:focus-visible ~ .track,
#hid-webapp .config-toggle input:focus-visible ~ .track,
#hid-webapp .settings-slider:focus-visible,
#hid-webapp .angle-slider:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

#hid-webapp .advanced-mode-toggle,
#hid-webapp .toggle {
    --track-off: #cfd4dc;
}

#hid-webapp.dark-mode .advanced-mode-toggle {
    --track-off: #4a5568;
}

#hid-webapp .config-toggle {
    --track-off: #95a5b8;
    cursor: pointer;
}

#hid-webapp .config-toggle .knob {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

#hid-webapp.dark-mode .config-toggle {
    --track-off: #4a5568;
}

#hid-webapp #hid-note {
    grid-column: 2;
    grid-row: 2;
    margin-top: 1rem;
    font-size: 0.95rem;
    opacity: 0.8;
}

/* An empty note would still open a grid row and make the page scroll. */
#hid-webapp #hid-note:empty {
    display: none;
}

#hid-webapp #hid-note.unsupported-splash {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    padding: 2rem;
    box-sizing: border-box;
    font-size: 1.27rem;
    line-height: 1.5;
    text-align: center;
}

#hid-webapp .unsupported-splash img {
    display: block;
    max-width: 300px;
    margin: 2rem auto;
}

#hid-webapp .unsupported-splash-title {
    margin-bottom: 2rem;
    font-size: 2.54rem;
}

#hid-webapp .unsupported-splash a {
    color: var(--accent-color);
}

#hid-webapp .footer-section {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.75rem 1rem 1.25rem;
    border-top: 1px solid var(--footer-border);
    text-align: center;
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease;
    background-color: transparent;
}

#hid-webapp .footer-section.hide {
    opacity: 0;
    visibility: hidden;
}

#hid-webapp .footer-section p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

#hid-webapp .footer-section a {
    color: #1a73e8;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

#hid-webapp .footer-section a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* Phones only: a narrow desktop window keeps the full layout. */
@media (max-width: 800px) and (pointer: coarse) {
    /* The desktop root font size comes from ui-scale; phones keep 16px. */
    html {
        font-size: 16px !important;
    }

    /* Beats the page grid, which loads later, and the root's own flush padding. */
    #hid-webapp {
        display: block !important;
        padding: 1rem !important;
    }

    #hid-webapp h1 {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 2rem;
        padding-top: 2rem;
    }

    #hid-webapp #hid-note,
    #hid-webapp #hid-note.unsupported-splash {
        font-size: 1rem;
        line-height: 1.6;
        text-align: center;
        padding: 1rem;
    }

    /* Every button goes full width, whatever its own rule says. */
    #hid-webapp button {
        width: 100% !important;
        padding: 1rem !important;
        font-size: 1.1rem !important;
    }
}