:root {
    --tile-size: 40px;
    --tile-gap: 3px;
    --color-correct: #6aaa64;
    --color-present: #c9b458;
    --color-absent: #787c7e;
    --color-default: #ffffff;
    --color-border: #d3d6da;
    --color-filled: #878a8c;
}

body {
    background-color: #f8f9fa;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
}

.container-fluid {
    max-width: 700px;
}

.board-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.board-row-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.board-row {
    display: flex;
    gap: var(--tile-gap);
}

.tile {
    width: var(--tile-size);
    height: var(--tile-size);
    border: 2px solid var(--color-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    background-color: #fff;
    color: #000;
    transition: all 0.15s ease;
    cursor: pointer;
    user-select: none;
}

.tile.filled {
    border-color: var(--color-filled);
}

.tile.correct {
    background-color: var(--color-correct);
    border-color: var(--color-correct);
    color: #fff;
}

.tile.present {
    background-color: var(--color-present);
    border-color: var(--color-present);
    color: #fff;
}

.tile.absent {
    background-color: var(--color-absent);
    border-color: var(--color-absent);
    color: #fff;
}

.template-btn {
    min-width: 70px;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 4px 8px;
    border: 2px solid #d3d6da;
    background-color: #d3d6da;
    color: #000;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.template-btn:hover {
    background-color: #bbb;
}

.template-btn.filled {
    background-color: var(--color-absent);
    border-color: var(--color-absent);
    color: #fff;
}

.template-spacer {
    min-width: 70px;
}

#mode-selector .btn-group label {
    font-size: 0.75rem;
    padding: 4px 10px;
}

#mode-selector .btn-group label[for="mode-correct"] {
    background-color: var(--color-correct);
    color: #fff;
}

#mode-selector .btn-group label[for="mode-present"] {
    background-color: var(--color-present);
    color: #fff;
}

#mode-selector .btn-group label[for="mode-absent"] {
    background-color: var(--color-absent);
    color: #fff;
}

#mode-selector .btn-check:checked + label {
    box-shadow: 0 0 0 2px #0d6efd;
}

.suggestions-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    justify-content: center;
    max-height: 150px;
    overflow-y: auto;
}

.suggestion-word {
    padding: 2px 6px;
    background-color: #e9ecef;
    border-radius: 3px;
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.suggestion-word:hover {
    background-color: #dee2e6;
}

.suggestion-word.filter-word {
    background-color: #fff3cd;
}

.suggestion-word.filter-word:hover {
    background-color: #ffe69c;
}

.letter-stats-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    justify-content: center;
}

.letter-stat {
    width: 22px;
    height: 22px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 3px;
    font-weight: bold;
    font-size: 0.65rem;
    text-transform: uppercase;
    background-color: #e9ecef;
    color: #000;
}

.letter-stat.likely {
    background-color: var(--color-correct);
    color: #fff;
}

.letter-stat.possible {
    background-color: var(--color-present);
    color: #fff;
}

.letter-stat.unlikely {
    background-color: var(--color-absent);
    color: #fff;
}

.letter-stat.low {
    background-color: #d3d6da;
    color: #000;
}

.letter-stat.very-low {
    background-color: #e9ecef;
    color: #aaa;
}

#dict-badge.loading {
    background-color: #ffc107;
    color: #000;
}

#dict-badge.ready {
    background-color: #198754;
}

#dict-badge.error {
    background-color: #dc3545;
}

#message {
    font-size: 0.8rem;
    padding: 4px 8px;
}

#lang-toggle {
    font-weight: bold;
    min-width: 40px;
}

#word-input-section input {
    text-transform: uppercase;
    letter-spacing: 2px;
}

@media (max-width: 576px) {
    :root {
        --tile-size: 46px;
        --tile-gap: 5px;
    }

    body {
        font-size: 16px;
    }

    .board-row-wrapper {
        gap: 6px;
    }

    .tile {
        font-size: 1.25rem;
    }

    .template-btn {
        min-width: 68px;
        font-size: 0.8rem;
        padding: 6px 8px;
    }

    .template-spacer {
        min-width: 68px;
    }

    #controls .btn, #send-btn {
        font-size: 0.9rem;
        padding: 6px 12px;
        margin-bottom: 4px;
    }

    #mode-selector .btn-group label {
        font-size: 0.85rem;
        padding: 6px 10px;
    }

    #recommendations .col-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .suggestions-container {
        max-height: 200px;
        gap: 5px;
    }

    .suggestion-word {
        font-size: 0.85rem;
        padding: 3px 8px;
    }
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-overlay.show {
    display: flex;
}

.modal-content {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 300px;
}

.template-input {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: bold;
    text-align: center;
}