*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #1a1a1a;
    font-family: 'Segoe UI', system-ui, sans-serif;
    color: #ffffff;
    overflow: hidden; 
}

#top-bar {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background-color: #111111;
    border-bottom: 1px solid #2f2f2f;
    position: relative;
    flex-shrink: 0;
}

#top-bar-title {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: #e0e0e0;
}

#keyboard-toggle {
    position: absolute;
    right: 16px;
    background: #2f2f2f;
    border: 1px solid #3f3f3f;
    border-radius: 8px;
    color: #ffffff;
    font-size: 1.2rem;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, border-color 0.2s;
    line-height: 1;
}

#keyboard-toggle:hover {
    background-color: #3f3f3f;
}

#keyboard-toggle.active {
    background-color: #60a5fa33;
    border-color: #60a5fa;
}

.keyboard-panel {
    width: 100%;
    background-color: #111111;
    border-bottom: 1px solid #2f2f2f;
    padding: 12px 0;
    flex-shrink: 0;
    transition: max-height 0.3s ease, padding 0.3s ease;
    overflow: hidden;
}

.keyboard-panel.hidden {
    display: none !important;
}

.keyboard-tab {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: center;
}

.keyboard-row {
    display: flex;
    gap: 5px;
    justify-content: center;
}

.keyboard-tab .letter-box {
    width: 38px;
    height: 38px;
    font-size: 1rem;
    font-weight: 600;
    background-color: #2f2f2f;
    border-radius: 6px;
    border: 2px solid #3a3a3a;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    user-select: none;
    transition: background-color 0.25s, border-color 0.25s;
}

.keyboard-tab .letter-box.in {
    background-color: #5a9e54;
    border-color: #5a9e54;
}

.keyboard-tab .letter-box.notin {
    background-color: #4a4a4a;
    border-color: #4a4a4a;
    color: #888;
}

.keyboard-tab .letter-box.default {
    background-color: #2f2f2f;
    border-color: #3a3a3a;
}

#main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    width: 100%;
    overflow: hidden;
    padding: 16px 0 0;
}

.answers {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    max-height: 600px;
    padding: 4px 8px;
    width: fit-content;
    margin-bottom: 16px;
    scrollbar-width: thin;
    scrollbar-color: #3f3f3f transparent;
}

.answers::-webkit-scrollbar { width: 4px; }
.answers::-webkit-scrollbar-track { background: transparent; }
.answers::-webkit-scrollbar-thumb { background-color: #3f3f3f; border-radius: 4px; }

.answer-container {
    display: flex;
    gap: 8px;
}

.answer-container .letter-box {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.letter-box {
    width: clamp(42px, 12vw, 58px);
    height: clamp(42px, 12vw, 58px);
    font-size: clamp(1.2rem, 4vw, 1.9rem);
    line-height: clamp(42px, 12vw, 58px);
    background-color: #2a2a2a;
    border-radius: 10px;
    border: 2px solid #383838;
    text-align: center;
    font-weight: 700;
    color: #ffffff;
    outline: none;
    transition: border-color 0.15s;
}

.letter-box:focus {
    border-color: #60a5fa;
}

.letter-box::selection { background: transparent; }
.input-box { cursor: text; caret-color: transparent; }

.exact   { background-color: #5a9e54; border-color: #5a9e54; }
.exists  { background-color: #b8a030; border-color: #b8a030; }

.game-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.word-container {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.error-message {
    height: 20px;
    margin-bottom: 8px;
    color: #f87171;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.error-message.show { opacity: 1; }

.action-row {
    display: flex;
    gap: 10px;
    align-items: center;
    width: 100%;
    max-width: 320px;
}

.guess-button {
    flex: 1;
    height: 48px;
    border-radius: 10px;
    background-color: #60a5fa;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}
.guess-button:hover { background-color: #3b82f6; }

#hint-button {
    height: 48px;
    padding: 0 16px;
    border-radius: 10px;
    background-color: #2f2f2f;
    color: #e0e0e0;
    font-size: 1rem;
    font-weight: 600;
    border: 1px solid #3f3f3f;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s, border-color 0.2s;
}
#hint-button:hover {
    background-color: #3f3f3f;
    border-color: #5f5f5f;
}
.hint-display {
    margin-top: 10px;
    padding: 8px 20px;
    background-color: #2f2f2f;
    border: 1px solid #4f4f4f;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: #fbbf24;
    letter-spacing: 0.08em;
    text-align: center;
    animation: fadeIn 0.2s ease;
}
.hint-display.hidden { display: none !important; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes shake {
    0%   { transform: translateX(0); }
    20%  { transform: translateX(-8px); }
    40%  { transform: translateX(8px); }
    60%  { transform: translateX(-6px); }
    80%  { transform: translateX(6px); }
    100% { transform: translateX(0); }
}
.word-container.shake { animation: shake 0.3s; }

.end-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 24px;
    text-align: center;
}

.end-screen h1 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    margin: 0;
    color: #60a5fa;
}

.end-screen p {
    font-size: 1.1rem;
    color: #cccccc;
    margin: 0;
    letter-spacing: 0.05em;
}

#play-again {
    padding: 11px 28px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    background-color: #60a5fa;
    color: white;
    cursor: pointer;
    transition: background-color 0.2s;
    letter-spacing: 0.05em;
}
#play-again:hover { background-color: #3b82f6; }

.end-screen.win h1  { color: #5a9e54; }
.end-screen.lose h1 { color: #f87171; }
.end-screen.lose p  { color: #f87171; }

.hidden { display: none !important; }