/* Premium Button Styles for BrainPlay Games */

/* Base Premium Button Style */
.premium-btn {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Nunito', sans-serif;
    overflow: hidden;
    min-width: 140px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.premium-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.premium-btn:hover::before {
    left: 100%;
}

.premium-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
}

.premium-btn:active {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.1s ease;
}

/* New Game Button */
.new-game-btn {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    box-shadow: 0 8px 25px rgba(72, 187, 120, 0.3);
}

.new-game-btn:hover {
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
    box-shadow: 0 15px 35px rgba(72, 187, 120, 0.5);
}

/* Hints Button */
.hints-btn {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    box-shadow: 0 8px 25px rgba(237, 137, 54, 0.3);
}

.hints-btn:hover {
    background: linear-gradient(135deg, #dd6b20 0%, #c05621 100%);
    box-shadow: 0 15px 35px rgba(237, 137, 54, 0.5);
}

/* Check Button */
.check-btn {
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    box-shadow: 0 8px 25px rgba(66, 153, 225, 0.3);
}

.check-btn:hover {
    background: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
    box-shadow: 0 15px 35px rgba(66, 153, 225, 0.5);
}

/* Start Game Button */
.start-game-btn {
    background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
    box-shadow: 0 8px 25px rgba(245, 101, 101, 0.3);
    font-size: 18px;
    padding: 16px 32px;
    min-width: 160px;
}

.start-game-btn:hover {
    background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
    box-shadow: 0 15px 35px rgba(245, 101, 101, 0.5);
}

/* Pause Button */
.pause-btn {
    background: linear-gradient(135deg, #9f7aea 0%, #805ad5 100%);
    box-shadow: 0 8px 25px rgba(159, 122, 234, 0.3);
}

.pause-btn:hover {
    background: linear-gradient(135deg, #805ad5 0%, #6b46c1 100%);
    box-shadow: 0 15px 35px rgba(159, 122, 234, 0.5);
}

/* Skip Button */
.skip-btn {
    background: linear-gradient(135deg, #a0aec0 0%, #718096 100%);
    box-shadow: 0 8px 25px rgba(160, 174, 192, 0.3);
}

.skip-btn:hover {
    background: linear-gradient(135deg, #718096 0%, #4a5568 100%);
    box-shadow: 0 15px 35px rgba(160, 174, 192, 0.5);
}

/* Play Button (for game cards) */
.play-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: 'Nunito', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

.play-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.play-btn:hover::before {
    left: 100%;
}

.play-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
}

.play-btn:active {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.1s ease;
}

/* Control Button Enhancements */
.control-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Nunito', sans-serif;
    min-width: 140px;
    position: relative;
    overflow: hidden;
}

.control-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.control-btn:hover::before {
    left: 100%;
}

.control-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
}

.control-btn:active {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.1s ease;
}

.control-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.control-btn:disabled:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Game Button Enhancements */
.game-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Nunito', sans-serif;
    margin: 8px;
    min-width: 140px;
    position: relative;
    overflow: hidden;
}

.game-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.game-btn:hover::before {
    left: 100%;
}

.game-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
}

.game-btn:active {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.1s ease;
}

.game-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.game-btn:disabled:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Hint Button Enhancements */
.hint-btn {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 6px 20px rgba(237, 137, 54, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: 'Nunito', sans-serif;
    margin: 8px;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

.hint-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.hint-btn:hover::before {
    left: 100%;
}

.hint-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 12px 30px rgba(237, 137, 54, 0.5);
    background: linear-gradient(135deg, #dd6b20 0%, #c05621 100%);
}

.hint-btn:active {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.1s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .premium-btn,
    .control-btn,
    .game-btn {
        padding: 12px 24px;
        font-size: 14px;
        min-width: 120px;
    }
    
    .start-game-btn {
        padding: 14px 28px;
        font-size: 16px;
        min-width: 140px;
    }
    
    .play-btn,
    .hint-btn {
        padding: 10px 20px;
        font-size: 12px;
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .premium-btn,
    .control-btn,
    .game-btn {
        padding: 10px 20px;
        font-size: 12px;
        min-width: 100px;
        margin: 4px;
    }
    
    .start-game-btn {
        padding: 12px 24px;
        font-size: 14px;
        min-width: 120px;
    }
    
    .play-btn,
    .hint-btn {
        padding: 8px 16px;
        font-size: 11px;
        min-width: 90px;
    }
}

/* Button Loading State */
.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Button Success State */
.btn-success {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%) !important;
    box-shadow: 0 8px 25px rgba(72, 187, 120, 0.4) !important;
}

.btn-success:hover {
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%) !important;
    box-shadow: 0 15px 35px rgba(72, 187, 120, 0.6) !important;
}

/* Button Error State */
.btn-error {
    background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%) !important;
    box-shadow: 0 8px 25px rgba(245, 101, 101, 0.4) !important;
}

.btn-error:hover {
    background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%) !important;
    box-shadow: 0 15px 35px rgba(245, 101, 101, 0.6) !important;
}