:root {
    --cell-size: 28px;
}

html,
body {
    margin: 0;
}

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

main {
    min-height: 100vh;
    padding: 24px 32px;
    box-sizing: border-box;
}

.puzzle-layout {
    display: flex;
    gap: 40px;
}

.puzzle-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.clues ol {
    margin: 0;
    padding-left: 0;
    list-style-position: inside;
    font-size: 16px;
    line-height: 1.35;
}

.crossword-grid {
    display: grid;
    grid-template-columns: repeat(26, var(--cell-size));
    grid-template-rows: repeat(27, var(--cell-size));
    gap: 0;
}

.crossword-cell {
    display: block;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: 1px solid #333;
    margin: 0;
    padding: 0;

    background-color: #fff;
    color: #111;

    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
    font-size: calc(var(--cell-size) * 0.58);
    font-weight: 600;
    text-transform: uppercase;
}

.crossword-cell:focus {
    outline: 2px solid #c46a3a;
    outline-offset: -2px;
    background-color: #fff4ed;
}

.solution-cell {
    background-color: #e2e2e2;
}

.cell-wrapper {
    position: relative;
    width: var(--cell-size);
    height: var(--cell-size);
    box-sizing: border-box;
}

.solution-number {
    position: absolute;
    top: 2px;
    right: 3px;
    font-size: 9px;
    line-height: 1;
    z-index: 2;
    pointer-events: none;
}

.clue-marker {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 9px;
    line-height: 1;
    white-space: nowrap;
    z-index: 3;
    pointer-events: none;
}

.clue-marker::after {
    content: "";
    width: 4px;
    height: 4px;
    border-right: 1px solid currentColor;
    border-bottom: 1px solid currentColor;
}

.clue-marker-horizontal {
    top: 50%;
    right: calc(100% + 2px);
    transform: translateY(-50%);
}

.clue-marker-horizontal::after {
    transform: rotate(-45deg);
}

.clue-marker-vertical {
    flex-direction: column;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
}

.clue-marker-vertical::after {
    transform: rotate(45deg);
}

.solution-grid {
    display: flex;
    gap: 4px;
}

.solution-box {
    position: relative;
    width: 32px;
    height: 32px;
    box-sizing: border-box;
    border: 1px solid black;
    background-color: #e2e2e2;
}

.solution-box-number {
    position: absolute;
    top: 2px;
    left: 3px;
    font-size: 9px;
    line-height: 1;
}

.solution-box-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 20px;
    text-transform: uppercase;
}

.blocked-cell {
    width: var(--cell-size);
    height: var(--cell-size);
    box-sizing: border-box;
    border: 1px solid #333;
    background-color: #111;
}