/*
 * Global
 */

:root {
    color-scheme: light dark;
}

@font-face {
    font-family: "Grundschrift";
    src: url("Grundschrift-Bold.otf") format("opentype");
}

body {
    font-family: sans-serif;
    margin: 1em;
    @media (prefers-color-scheme: dark) {
        background: #1a1a1a;
        color: #e0e0e0;
    }
}

a {
    @media (prefers-color-scheme: dark) {
        color: #6cb4ee;
    }
}

.grundschrift {
    font-family: "Grundschrift", sans-serif;
}

/*
 * Group colors: single source of truth for both input groups and output blocks
 */

[data-group="0"] {
    --group-color: #ffcdd2;
    @media (prefers-color-scheme: dark) {
        --group-color: #5c3a3d;
    }
}

[data-group="1"] {
    --group-color: #c8e6c9;
    @media (prefers-color-scheme: dark) {
        --group-color: #3d5c40;
    }
}

[data-group="2"] {
    --group-color: #bbdefb;
    @media (prefers-color-scheme: dark) {
        --group-color: #3a4a5c;
    }
}

[data-group="3"] {
    --group-color: #fff9c4;
    @media (prefers-color-scheme: dark) {
        --group-color: #5c5a3a;
    }
}

/*
 * Input: the editor panel (hidden when printing)
 */

.no-print {
    background: #f5f5f5;
    border: 2px dashed #ccc;
    border-radius: 0.5em;
    padding: 1em;
    margin-bottom: 1.5em;
    @media print {
        display: none;
    }
    @media (prefers-color-scheme: dark) {
        background: #2a2a2a;
        border-color: #555;
    }
}

.groups {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
    margin: 1em 0;
}

.group {
    display: flex;
    gap: 0.5em;
    padding: 0.5em;
    border-radius: 0.5em;
    align-items: center;
    background: var(--group-color);
}

.group input {
    font-size: 1em;
    padding: 0.4em;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-radius: 0.3em;
    width: 8em;
    background: rgba(255, 255, 255, 0.7);
    @media (prefers-color-scheme: dark) {
        background: rgba(0, 0, 0, 0.3);
        border-color: rgba(255, 255, 255, 0.3);
        color: #e0e0e0;
    }
}

button {
    font-size: 1em;
    padding: 0.5em 1.5em;
    margin-top: 0.5em;
    @media (prefers-color-scheme: dark) {
        background: #333;
        color: #e0e0e0;
        border-color: #555;
    }
}

button[aria-pressed="true"] {
    background-color: #c8e6c9;
    @media (prefers-color-scheme: dark) {
        background-color: #3d5c40;
    }
}

.title {
    font-weight: normal;
    font-size: 2.5em;
}

/*
 * Output: the shuffled word grid
 */

.grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1em;
    max-width: 800px;
}

.block {
    position: relative;
    border: 2px solid black;
    padding: 1.5em 1em 1em 1.5em;
    min-height: 2em;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3em;
    @media (prefers-color-scheme: dark) {
        border-color: #e0e0e0;
    }
}

/* diagonal line in corner */
.block::before {
    content: "";
    position: absolute;
    top: 2em;
    left: 0;
    width: 2.8em;
    height: 0;
    border-top: 2px solid black;
    transform-origin: top left;
    transform: rotate(-45deg);
    @media (prefers-color-scheme: dark) {
        border-top-color: #e0e0e0;
    }
}

/* colored triangle for hint mode (shown on first word of each group) */
body:has(#hints-button[aria-pressed="true"]) .block[data-index="0"]::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    border: 1em solid transparent;
    border-top-color: var(--group-color);
    border-left-color: var(--group-color);
}

/* dotted line between syllables */
.syllable + .syllable::before {
    content: "";
    border-left: 2px dotted #555;
    @media (prefers-color-scheme: dark) {
        border-left-color: #aaa;
    }
}