:root {
    --panel-bg: #1c1c22;
    --input-bg: #252530;
    --border: #3a3a44;
    --text-primary: #e2e2e8;
    --text-secondary: #9a9aa6;
    --text-muted: #6e6e7a;
    --accent: #6b8fffde;
    --error: 192, 57, 43;
    --font-ui: system-ui, sans-serif;
    --font-mono: ui-monospace, monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-md: 0.875rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;

    --radius-sm: 0.3rem;
    --radius: 0.5rem;
    --radius-lg: 0.8rem;
}

*,
*:before,
*:after {
    box-sizing: border-box;
    font-size: 1em;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-ui);
    background-color: var(--panel-bg);
    color: var(--text-primary);
    height: 100vh;
    width: 100vw;
}

#map {
    width: 100vw;
    height: 100vh;
}

#map-overlay,
.modal * {
    /* don't allow panning over fixed position elements to mess up screen position. */
    overscroll-behavior: contain;
}

#map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    max-width: 90%;
    max-height: 90%;
    background-color: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: var(--text-md);
    padding: 0.5rem;
    margin: 1rem;
    overflow: auto;
    z-index: 999;

    details {
        margin: 0;
        padding: 0;
    }

    details[open] {
        width: 25rem;
        max-width: 100%;
        summary::before {
            transform: rotate(90deg);
        }
    }

    summary {
        user-select: none;
        cursor: pointer;

        list-style: none;
        padding-right: 0.5rem;
        align-items: center;
        display: flex;
        font-size: var(--text-lg);

        ::marker {
            display: none;
        }

        &::before {
            content: "›";
            font-size: var(--text-lg);
            color: var(--text-muted);
            display: inline-block;
            width: 1rem;
            text-align: center;
            transition: transform 180ms;
        }
    }
}

.settings {
    fieldset {
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin: 0;
        margin-top: 1em;
        + fieldset {
            margin-top: 1.2em;
        }
    }

    legend {
        text-transform: uppercase;
        letter-spacing: 1px;
        font-size: var(--text-sm);
        color: var(--text-second);
        user-select: none;
    }

    input,
    select,
    textarea {
        max-width: 100%;
        outline: none;
        background: var(--input-bg);
        color: var(--text-primary);
        font-family: var(--font-ui);
        font-size: var(--text-sm);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0.5rem;
        transition: border-color 180ms;

        &:hover {
            border-color: var(--accent);
        }
    }

    select {
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236e6e7a'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 0.5rem center;
        cursor: pointer;
    }

    textarea {
        font-family: var(--font-mono);
        font-size: var(--text-xs);
        resize: vertical;
        min-height: 3rem;

        &::placeholder {
            font-style: italic;
            opacity: 0.5;
        }
    }

    label {
        color: var(--text-muted);
        align-content: center;
    }

    .activity-count-row {
        font-size: var(--text-xs);
        font-style: italic;
        color: var(--text-muted);
    }

    .form-row {
        display: grid;
        align-items: center;
        gap: 0.5rem;

        &.simple {
            grid-template-columns: 1fr 66%;
            gap: 0.5rem;
        }

        &.even {
            grid-template-columns: 1fr 1fr;
            justify-content: space-between;
        }

        .date-input {
            display: grid;
            grid-template-rows: 1fr 1fr;
        }

        + .form-row {
            padding: 0.5rem 0;
        }
    }

    .filter-label {
        display: flex;
        gap: 0.5em;

        > label {
            flex: 1;
        }
    }

    .filter-link {
        color: var(--accent);
        cursor: pointer;
        &:hover {
            opacity: 0.85;
        }
    }
}

#tile-url {
    color: var(--text-muted);
    font-family: var(--font-mono);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    cursor: pointer;

    &:hover {
        color: var(--text-secondary);
    }
}

#warnings-container {
    padding: 0.5rem;
    font-size: var(--text-sm);
    border: 1px solid rgba(var(--error), 0.5);
    border-radius: var(--radius);
    background-color: rgba(var(--error), 0.15);
    color: #e67e73;
    margin-top: 0.5rem;

    &:empty {
        padding: 0;
        visibility: hidden;
    }
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-family: var(--font-ui);
    .__panel {
        background-color: var(--panel-bg);
        color: var(--text-secondary);
        font-size: var(--text-md);
        margin: 0 auto;
        width: 80ch;
        max-width: 90%;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        display: flex;
        flex-direction: column;

        /* & > guards: .property-table also defines .__header /
       .__body, and it lives inside this panel in the DOM */
        & > .__header {
            padding: 1rem;
            font-size: var(--text-lg);
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border);
        }

        & > .__body {
            flex-grow: 1;
            overflow-y: auto;
            max-height: 50vh;
            padding: 1rem;
        }

        & > .__footer {
            display: flex;
            flex-direction: row-reverse;
            padding: 1rem;
            border-top: 1px solid var(--border);

            .__button {
                background-color: transparent;
                color: var(--text-secondary);
                font-family: var(--font-ui);
                font-size: var(--text-md);
                padding: 0.5rem;
                border-radius: var(--radius);
                border: 1px solid var(--border);
                cursor: pointer;
                transition:
                    border-color 150ms,
                    color 150ms;

                &:hover {
                    border-color: var(--accent);
                    color: var(--text-primary);
                }
            }
        }
    }
}

.modal .property-table {
    width: 100%;

    .__row {
        display: grid;
        grid-template-columns: 1fr auto 25%;
        align-items: center;
    }

    .__header {
        padding-bottom: 0.25rem;
        font-weight: bold;
        font-size: var(--text-xs);
        text-transform: uppercase;
        color: var(--text-muted);
        border-bottom: 1px solid var(--border);

        & > :last-child {
            text-align: right;
        }

        .__sort {
            cursor: pointer;
            user-select: none;

            &:hover {
                color: var(--text-secondary);
            }
        }
    }

    .__row {
        padding: 0.25rem 0.125rem;
        border-bottom: 1px solid var(--border);
        font-size: var(--text-xs);
        color: var(--text-muted);

        &:last-child {
            border-bottom: none;
        }

        &:hover {
            background-color: var(--input-bg);
        }

        .__prop {
            font-family: var(--font-mono);
            color: var(--text-secondary);
            text-overflow: ellipsis;
            white-space: nowrap;
            overflow: hidden;
        }

        .__types {
            display: flex;
            gap: 0.25rem;
            align-items: center;
            justify-self: center;
        }

        .__type {
            font-family: var(--font-mono);
            background-color: var(--input-bg);
            padding: 0.25rem;
            border-radius: var(--radius-sm);
        }

        .__count {
            text-align: right;
        }
    }
}

.modal .filter-help {
    p {
        margin: 0 0 0.25rem;
        line-height: 1.5;
    }

    .__heading {
        font-size: var(--text-xs);
        font-weight: 700;
        letter-spacing: 1px;
        text-transform: uppercase;
        color: var(--text-muted);
        margin: 0.5rem 0 0.5rem;

        &:first-child {
            margin-top: 0;
        }
    }

    ul {
        margin: 0 0 0.25rem;
        padding-left: 1.6rem;
        line-height: 1.8;
    }

    code {
        font-family: var(--font-mono);
        font-size: var(--text-xs);
        background-color: var(--input-bg);
        color: var(--text-primary);
        border-radius: var(--radius-sm);
    }

    .__properties {
        margin: 0.5rem 0;
    }

    .__examples {
        display: grid;
        gap: 0.5rem;

        @media (min-width: 45rem) {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    .__example {
        background-color: var(--input-bg);
        border-radius: var(--radius);
        padding: 0.5rem 0.75rem;

        .__code {
            font-family: var(--font-mono);
            font-size: var(--text-sm);
            color: var(--text-primary);
        }

        .__desc {
            font-size: var(--text-xs);
            color: var(--text-muted);
            margin-top: 0.25rem;
        }
    }
}

.modal .drop-area {
    .__target {
        height: 10ch;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        margin: 0.5rem 0;
        transition: background-color 300ms;

        &.--highlight {
            background-color: var(--input-bg);
        }

        label {
            text-align: center;
            height: 100%;
            width: 100%;
            color: var(--text-muted);
            cursor: copy;
            display: flex;
            flex-direction: column;
            align-content: center;
            justify-content: center;
            position: relative;
        }

        .__progress {
            width: 0;
            height: 100%;
            background-color: rgba(107, 143, 255, 0.2);
            transition: opacity 1s;
            position: absolute;
            top: 0;
            left: 0;
            border-radius: var(--radius-lg);
        }
    }

    .__results {
        color: var(--text-muted);
        font-size: var(--text-sm);
        height: 10rem;
        overflow-y: scroll;
        display: none;

        .__row {
            display: grid;

            &.--success {
                grid-template-columns: 1fr;

                .__file::before {
                    content: "✓ ";
                }
            }

            &.--error {
                grid-template-columns: 30% 1fr;
                gap: 0.5rem;
                background-color: rgba(var(--error), 0.2);

                .__file::before {
                    content: "❌ ";
                }
            }

            .__file {
                white-space: nowrap;
                text-overflow: ellipsis;
                overflow: hidden;
            }
        }
    }
}