* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    overflow-y: auto;
}

.game-wrapper {
    padding: 20px;
}

.container {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px 35px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 700px;
}

h1 {
    margin: 0 0 5px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: #4930a0;
    background-clip: text;
    font-size: 2.5rem;
}

.subtitle {
    margin: 0 0 15px 0;
    color: #595959;
    font-size: 0.95rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.stats span {
    background: #4930a0;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.stats strong {
    font-size: 1.1rem;
}

.lives-display {
    font-size: 1.5rem;
    margin-bottom: 10px;
    letter-spacing: 5px;
}

.canvas-container {
    position: relative;
    display: inline-block;
    margin: 10px 0;
}

#game-canvas {
    border: 3px solid #667eea;
    border-radius: 12px;
    background: linear-gradient(180deg, #0c1445 0%, #1a237e 50%, #283593 100%);
    display: block;
    touch-action: none;
}

.current-word {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 10px #667eea, 0 0 20px #764ba2;
    letter-spacing: 8px;
    pointer-events: none;
}

.word-bank {
    margin: 15px 0;
    padding: 12px;
    background: #f0f0f0;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.collected-letters {
    font-size: 1.4rem;
    font-weight: bold;
    color: #4930a0;
    letter-spacing: 4px;
    min-width: 100px;
    padding: 5px 15px;
    background: white;
    border-radius: 8px;
    border: 2px dashed #667eea;
}

.word-bank button {
    padding: 8px 16px;
    font-size: 0.9rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#submit-word {
    background: #287a35;
    color: white;
}

#submit-word:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
}

#clear-letters {
    background: #b42318;
    color: white;
}

#clear-letters:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.controls {
    margin: 15px 0;
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.controls button, .controls select {
    padding: 10px 20px;
    font-size: 1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#start-btn {
    background: #4930a0;
    color: white;
}

#start-btn:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

#pause-btn {
    background: #9a4d00;
    color: white;
}

#pause-btn:hover:not(:disabled) {
    transform: scale(1.05);
}

#pause-btn:disabled, #start-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.controls select {
    background: white;
    border: 2px solid #667eea;
    color: #333;
}

#message {
    font-weight: bold;
    margin: 10px 0;
    font-size: 1.1rem;
    min-height: 1.5em;
    transition: all 0.3s ease;
}

.message-success {
    color: #287a35;
    animation: pulse 0.5s ease;
}

.message-error {
    color: #b42318;
    animation: shake 0.5s ease;
}

.message-info {
    color: #145ca8;
}

.valid-words-display {
    margin-top: 10px;
    padding: 10px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 8px;
    max-height: 80px;
    overflow-y: auto;
}

.valid-words-display .word-tag {
    display: inline-block;
    background: #4930a0;
    color: white;
    padding: 4px 10px;
    margin: 3px;
    border-radius: 15px;
    font-size: 0.85rem;
    animation: popIn 0.3s ease;
}

/* Modal styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    padding: 30px 50px;
    border-radius: 16px;
    text-align: center;
    animation: slideIn 0.4s ease;
}

.modal-content h2 {
    color: #333;
    margin-bottom: 20px;
}

.modal-content p {
    font-size: 1.1rem;
    margin: 10px 0;
}

#play-again {
    margin-top: 20px;
    padding: 12px 30px;
    font-size: 1.1rem;
    background: #4930a0;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#play-again:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* Music controls */
.music-controls {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 10px 15px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    font-size: 0.9em;
    z-index: 1000;
}

.music-controls button {
    padding: 5px 10px;
    font-size: 14px;
    margin: 2px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background: #f0f0f0;
    transition: all 0.3s ease;
}

.music-controls button:hover {
    background: #e0e0e0;
}

.music-controls .song-name {
    font-size: 0.85em;
    color: #595959;
    margin-top: 5px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    70% { transform: scale(1.1); }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px #667eea, 0 0 10px #667eea;
    }
    50% {
        box-shadow: 0 0 20px #667eea, 0 0 30px #764ba2;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Letter caught flash effect */
.letter-caught {
    animation: letterCaught 0.3s ease;
}

@keyframes letterCaught {
    0% { filter: brightness(1); }
    50% { filter: brightness(1.5); }
    100% { filter: brightness(1); }
}

/* Help text */
.help-text {
    margin-top: 10px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: left;
    line-height: 1.6;
    animation: fadeIn 0.3s ease;
}

.help-text.hidden {
    display: none;
}

.help-text kbd {
    background: #333;
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.85rem;
}

#help-btn {
    background: linear-gradient(135deg, #9c27b0 0%, #7b1fa2 100%);
    color: white;
}

#help-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(156, 39, 176, 0.4);
}

/* Responsive */
@media (max-width: 650px) {
    #game-canvas {
        width: 100%;
        height: auto;
    }

    .stats {
        gap: 10px;
    }

    .stats span {
        padding: 5px 10px;
        font-size: 0.8rem;
    }
}