/* ============================================================
   LETTLE — restyled to match the Bookpuz design system
   Tokens mirror bookpuz.com: parchment canvas, spine green,
   brass accent, Lettle's own plum identity colour.
   Class names are unchanged from the original build — only
   colours, fonts, and a few radii/shadows have moved.
   ============================================================ */

.lettle-root {
    --lettle-canvas: #ECE7DC;
    --lettle-canvas-card: #F5F1E7;
    --lettle-ink: #20241F;
    --lettle-ink-soft: #5A5F52;
    --lettle-rule: #C9C2AC;
    --lettle-spine: #2F4538;
    --lettle-spine-deep: #1E2E25;
    --lettle-brass: #B98B3F;
    --lettle-brass-deep: #8E6A2C;
    --lettle-plum: #6B3F69;
    --lettle-plum-deep: #48294A;
    --lettle-fair: #C1573A;
    --lettle-tricky: #8A3A24;

    max-width: 620px;
    margin: 0 auto;
    font-family: "Inter", system-ui, sans-serif;
    background: var(--lettle-canvas-card);
    border: 1px solid var(--lettle-rule);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 4px 18px -8px rgba(32, 36, 31, 0.22);
    color: var(--lettle-ink);
}

.lettle-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 16px;
}
.lettle-title {
    margin: 0;
    font-family: "Fraunces", "Iowan Old Style", Georgia, serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--lettle-ink);
}
.lettle-icon-btn { cursor: pointer; display: inline-block; user-select: none; color: var(--lettle-plum); }
.lettle-icon-btn:hover { opacity: 0.7; }
.lettle-puzzle-number {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 12px;
    color: var(--lettle-ink-soft);
}

.lettle-score-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--lettle-spine), var(--lettle-spine-deep));
    color: #fff;
    border-radius: 10px;
    padding: 12px 18px;
    margin-bottom: 18px;
}
.lettle-score-label {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 11px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.lettle-score-value { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 26px; font-weight: 700; }

.lettle-board {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
    justify-content: center;
}
.lettle-word-group {
    display: flex;
    gap: 6px;
    margin-right: 10px;
    margin-bottom: 6px;
}
.lettle-tile {
    width: 34px;
    height: 40px;
    border: 2px solid var(--lettle-rule);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-weight: 700;
    font-size: 18px;
    text-transform: uppercase;
    color: var(--lettle-ink);
    background: var(--lettle-canvas);
}
.lettle-tile.lettle-tile-hidden { background: rgba(32,36,31,0.06); color: transparent; }
.lettle-tile.lettle-tile-revealed {
    background: rgba(47,69,56,0.12);
    border-color: var(--lettle-spine);
    animation: lettle-pop 0.2s ease;
}
.lettle-tile.lettle-tile-other {
    background: transparent;
    border: none;
    color: var(--lettle-ink-soft);
    font-size: 16px;
    width: auto;
    min-width: 14px;
    font-family: "Inter", system-ui, sans-serif;
}

@keyframes lettle-pop {
    0% { transform: scale(0.85); }
    100% { transform: scale(1); }
}

.lettle-keyboard {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
}
.lettle-key-row { display: flex; gap: 6px; }
.lettle-key {
    min-width: 36px;
    height: 46px;
    padding: 4px 4px 3px;
    border: 1px solid var(--lettle-rule);
    border-radius: 6px;
    background: var(--lettle-canvas);
    color: var(--lettle-ink);
    cursor: pointer;
    font-family: "Inter", system-ui, sans-serif;
    transition: background 0.15s, border-color 0.15s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.lettle-key-letter { font-weight: 700; font-size: 14px; }
.lettle-key-cost {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 9px;
    font-weight: 600;
    opacity: 0.65;
    margin-top: 2px;
}
.lettle-key:hover:not(:disabled) { background: rgba(185,139,63,0.18); border-color: var(--lettle-brass); }
.lettle-key:disabled { cursor: default; }
.lettle-key.lettle-key-correct { background: var(--lettle-spine); border-color: var(--lettle-spine); color: #fff; }
.lettle-key.lettle-key-correct .lettle-key-cost { opacity: 0.85; }
.lettle-key.lettle-key-wrong { background: rgba(32,36,31,0.08); border-color: var(--lettle-rule); color: var(--lettle-ink-soft); }
.lettle-key.lettle-key-wrong .lettle-key-cost { opacity: 0.7; }

.lettle-clues {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}
.lettle-clue-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: var(--lettle-canvas);
    border: 1px solid var(--lettle-rule);
    border-radius: 10px;
    padding: 12px 6px;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, border-color 0.15s;
    font-family: "Inter", system-ui, sans-serif;
}
.lettle-clue-btn:hover:not(:disabled) { background: rgba(185,139,63,0.14); border-color: var(--lettle-brass); transform: translateY(-1px); }
.lettle-clue-btn:disabled { opacity: 0.5; cursor: default; background: rgba(32,36,31,0.04); }
.lettle-clue-icon { font-size: 22px; }
.lettle-clue-name { font-size: 13px; font-weight: 700; color: var(--lettle-ink); }
.lettle-clue-cost {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 11px;
    color: var(--lettle-plum-deep);
    font-weight: 600;
}

.lettle-reveals { margin-bottom: 14px; }
.lettle-reveal-item {
    background: rgba(185,139,63,0.10);
    border: 1px solid rgba(185,139,63,0.4);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 8px;
    font-size: 14px;
}
.lettle-reveal-item strong { color: var(--lettle-brass-deep); }

.lettle-result {
    background: var(--lettle-canvas);
    border: 1px solid var(--lettle-rule);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 14px;
}
.lettle-result h3 { margin: 0 0 6px; font-family: "Fraunces", Georgia, serif; }
.lettle-result-rating {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}
.lettle-result-rating.perfect { background: var(--lettle-brass); color: #fff; }
.lettle-result-rating.great   { background: var(--lettle-spine); color: #fff; }
.lettle-result-rating.good    { background: var(--lettle-plum); color: #fff; }
.lettle-result-rating.fair    { background: var(--lettle-fair); color: #fff; }
.lettle-result-rating.tricky  { background: var(--lettle-tricky); color: #fff; }

.lettle-result-amazon {
    display: inline-block;
    margin-top: 10px;
    background: var(--lettle-brass);
    color: #fff;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 13px;
}
.lettle-result-amazon:hover { background: var(--lettle-brass-deep); }

.lettle-result-buycard, .lettle-modal-buycard {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--lettle-canvas-card);
    border: 1px solid var(--lettle-rule);
    border-radius: 10px;
    padding: 12px;
    margin-top: 12px;
    text-align: left;
}
.lettle-modal-buycard { margin-top: 4px; }
.lettle-result-cover, .lettle-modal-cover {
    width: 60px;
    height: 90px;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 2px 6px rgba(32,36,31,0.2);
    flex-shrink: 0;
}
.lettle-result-buycard-info, .lettle-modal-buycard-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}
.lettle-result-price, .lettle-modal-price {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 16px;
    font-weight: 700;
    color: var(--lettle-ink);
}
.lettle-result-buy-btn, .lettle-modal-buy-btn {
    display: inline-block;
    background: var(--lettle-brass);
    color: #fff;
    padding: 7px 14px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    font-size: 13px;
}
.lettle-result-buy-btn:hover, .lettle-modal-buy-btn:hover { background: var(--lettle-brass-deep); }

.lettle-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    text-align: center;
    border-top: 1px solid var(--lettle-rule);
    padding-top: 14px;
}
.lettle-stat-value { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 19px; font-weight: 700; color: var(--lettle-ink); }
.lettle-stat-label {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 10px;
    color: var(--lettle-ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lettle-error-text { color: var(--lettle-tricky); }

@media (max-width: 480px) {
    .lettle-tile { width: 26px; height: 32px; font-size: 14px; }
    .lettle-clues { grid-template-columns: 1fr 1fr 1fr; gap: 6px; }
    .lettle-clue-btn { padding: 8px 2px; gap: 2px; }
    .lettle-clue-icon { font-size: 17px; }
    .lettle-clue-name { font-size: 10px; }
    .lettle-clue-cost { font-size: 9px; }
    .lettle-key { min-width: 28px; height: 40px; padding: 3px 2px 2px; }
    .lettle-key-letter { font-size: 12px; }
    .lettle-key-cost { font-size: 8px; }
}

/* --- Win modal --- */
.lettle-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(32, 36, 31, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    padding: 16px;
    animation: lettle-fade-in 0.15s ease;
}
@keyframes lettle-fade-in { from { opacity: 0; } to { opacity: 1; } }

.lettle-modal {
    background: #F5F1E7;
    border: 1px solid #C9C2AC;
    border-radius: 16px;
    padding: 28px 26px;
    max-width: 380px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 50px -10px rgba(32,36,31,0.35);
    position: relative;
    animation: lettle-modal-pop 0.2s ease;
    font-family: "Inter", system-ui, sans-serif;
    color: #20241F;
}
@keyframes lettle-modal-pop {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
.lettle-modal-close {
    position: absolute;
    top: 10px;
    right: 12px;
    background: none;
    border: none;
    font-size: 20px;
    color: #5A5F52;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}
.lettle-modal-close:hover { color: #20241F; }
.lettle-modal h3 {
    margin: 10px 0 4px;
    font-family: "Fraunces", "Iowan Old Style", Georgia, serif;
    font-size: 22px;
    font-weight: 700;
    color: #20241F;
}
.lettle-modal-author {
    font-size: 14px;
    color: #5A5F52;
    margin-bottom: 16px;
}
.lettle-modal-score {
    background: linear-gradient(135deg, #2F4538, #1E2E25);
    color: #fff;
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 14px;
}
.lettle-modal-score-value { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 28px; font-weight: 700; }
.lettle-modal-score-label {
    font-family: "JetBrains Mono", ui-monospace, monospace;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    opacity: 0.9;
}
.lettle-modal-blurb {
    font-size: 13px;
    color: #5A5F52;
    margin-bottom: 16px;
    line-height: 1.5;
}